June 2024 - Kernel - mailweb.openeuler.org

[PATCH openEuler-1.0-LTS] comedi: vmk80xx: fix bulk-buffer overflow
by Liu Shixin 11 Jun '24

11 Jun '24

From: Johan Hovold <johan(a)kernel.org> stable inclusion from stable-v4.19.217 commit 063f576c43d589a4c153554b681d32b3f8317c7b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RD4V CVE: CVE-2021-47474 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 78cdfd62bd54af615fba9e3ca1ba35de39d3871d upstream. The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers. Fixes: 985cafccbf9b ("Staging: Comedi: vmk80xx: Add k8061 support") Cc: stable(a)vger.kernel.org # 2.6.31 Signed-off-by: Johan Hovold <johan(a)kernel.org> Reviewed-by: Ian Abbott <abbotti(a)mev.co.uk> Link: https://lore.kernel.org/r/20211025114532.4599-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- drivers/staging/comedi/drivers/vmk80xx.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c index 2bbfaf54220e..ff52299c1fb0 100644 --- a/drivers/staging/comedi/drivers/vmk80xx.c +++ b/drivers/staging/comedi/drivers/vmk80xx.c @@ -159,22 +159,20 @@ static void vmk80xx_do_bulk_msg(struct comedi_device *dev) __u8 rx_addr; unsigned int tx_pipe; unsigned int rx_pipe; - size_t size; + size_t tx_size; + size_t rx_size; tx_addr = devpriv->ep_tx->bEndpointAddress; rx_addr = devpriv->ep_rx->bEndpointAddress; tx_pipe = usb_sndbulkpipe(usb, tx_addr); rx_pipe = usb_rcvbulkpipe(usb, rx_addr); - - /* - * The max packet size attributes of the K8061 - * input/output endpoints are identical - */ - size = usb_endpoint_maxp(devpriv->ep_tx); + tx_size = usb_endpoint_maxp(devpriv->ep_tx); + rx_size = usb_endpoint_maxp(devpriv->ep_rx); usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf, - size, NULL, devpriv->ep_tx->bInterval); - usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10); + tx_size, NULL, devpriv->ep_tx->bInterval); + + usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, rx_size, NULL, HZ * 10); } static int vmk80xx_read_packet(struct comedi_device *dev) -- 2.25.1

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[PATCH OLK-6.6] drm/amd/display: Atom Integrated System Info v2_2 for DCN35
by Yi Yang 11 Jun '24

11 Jun '24

From: Gabe Teeger <gabe.teeger(a)amd.com> stable inclusion from stable-v6.6.31 commit 7e3030774431eb093165a31baff040d35446fb8b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TNHC CVE: CVE-2024-36897 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 9a35d205f466501dcfe5625ca313d944d0ac2d60 ] New request from KMD/VBIOS in order to support new UMA carveout model. This fixes a null dereference from accessing Ctx->dc_bios->integrated_info while it was NULL. DAL parses through the BIOS and extracts the necessary integrated_info but was missing a case for the new BIOS version 2.3. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Signed-off-by: Gabe Teeger <gabe.teeger(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index 4c3c4c8de1cf..93720cf069d7 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -2961,6 +2961,7 @@ static enum bp_result construct_integrated_info( result = get_integrated_info_v2_1(bp, info); break; case 2: + case 3: result = get_integrated_info_v2_2(bp, info); break; default: -- 2.25.1

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[PATCH openEuler-22.03-LTS-SP1] iomap: Don't finish dio under irq when there exists pages
by Zhihao Cheng 11 Jun '24

11 Jun '24

hulk inclusion category: perf bugzilla: https://gitee.com/openeuler/kernel/issues/IA4DAW CVE: NA -------------------------------- Fixes: 6fac6d0e975afe1dec ("ext4: Optimize endio process for DIO overwrites") Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/iomap/direct-io.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..f6b3311fcc3e 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -177,6 +177,11 @@ static void iomap_dio_bio_end_io(struct bio *bio) goto release_bio; } + if ((dio->flags & IOMAP_DIO_INLINE_COMP) && dio->size && + (dio->flags & IOMAP_DIO_WRITE) && + file_inode(iocb->ki_filp)->i_mapping->nrpages) + dio->flags &= ~IOMAP_DIO_INLINE_COMP; + /* * Flagged with IOMAP_DIO_INLINE_COMP, we can complete it inline */ -- 2.31.1

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[PATCH openEuler-1.0-LTS] net: ti: fix UAF in tlan_remove_one
by Liu Shixin 11 Jun '24

11 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> stable inclusion from stable-v4.19.199 commit a0a817b2d308fac090a05cbbe80988e073ac5193 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S1ZJ CVE: CVE-2021-47310 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 0336f8ffece62f882ab3012820965a786a983f70 upstream. priv is netdev private data and it cannot be used after free_netdev() call. Using priv after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. Fixes: 1e0a8b13d355 ("tlan: cancel work at remove path") Signed-off-by: Pavel Skripkin <paskripkin(a)gmail.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- drivers/net/ethernet/ti/tlan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c index 93d142867c2a..c6595b4ff55a 100644 --- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -312,9 +312,8 @@ static void tlan_remove_one(struct pci_dev *pdev) pci_release_regions(pdev); #endif - free_netdev(dev); - cancel_work_sync(&priv->tlan_tqueue); + free_netdev(dev); } static void tlan_start(struct net_device *dev) -- 2.25.1

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[PATCH OLK-5.10] iomap: Don't finish dio under irq when there exists pages
by Zhihao Cheng 11 Jun '24

11 Jun '24

hulk inclusion category: perf bugzilla: https://gitee.com/openeuler/kernel/issues/IA4DAW CVE: NA -------------------------------- Fixes: 48774b90b5677bdb4 ("ext4: Optimize endio process for DIO overwrites") Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/iomap/direct-io.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..f6b3311fcc3e 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -177,6 +177,11 @@ static void iomap_dio_bio_end_io(struct bio *bio) goto release_bio; } + if ((dio->flags & IOMAP_DIO_INLINE_COMP) && dio->size && + (dio->flags & IOMAP_DIO_WRITE) && + file_inode(iocb->ki_filp)->i_mapping->nrpages) + dio->flags &= ~IOMAP_DIO_INLINE_COMP; + /* * Flagged with IOMAP_DIO_INLINE_COMP, we can complete it inline */ -- 2.31.1

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[PATCH openEuler-22.03-LTS-SP1] powerpc/powernv: Add a null pointer check in opal_event_init()
by Guo Mengqi 11 Jun '24

11 Jun '24

From: Kunwu Chan <chentao(a)kylinos.cn> stable inclusion from stable-v5.10.209 commit e6ad05e3ae9c84c5a71d7bb2d44dc845ae7990cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9IH Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 8649829a1dd25199bbf557b2621cedb4bf9b3050 ] kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: 2717a33d6074 ("powerpc/opal-irqchip: Use interrupt names if present") Signed-off-by: Kunwu Chan <chentao(a)kylinos.cn> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20231127030755.1546750-1-chentao@kylinos.cn Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- arch/powerpc/platforms/powernv/opal-irqchip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c index c164419e254d..dcec0f760c8f 100644 --- a/arch/powerpc/platforms/powernv/opal-irqchip.c +++ b/arch/powerpc/platforms/powernv/opal-irqchip.c @@ -278,6 +278,8 @@ int __init opal_event_init(void) else name = kasprintf(GFP_KERNEL, "opal"); + if (!name) + continue; /* Install interrupt handler */ rc = request_irq(r->start, opal_interrupt, r->flags & IRQD_TRIGGER_MASK, name, NULL); -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] ACPI: video: check for error while searching for backlight device parent
by Yu Liao 11 Jun '24

11 Jun '24

From: Nikita Kiryushin <kiryushin(a)ancud.ru> stable inclusion from stable-v5.10.209 commit c4e1a0ef0b4782854c9b77a333ca912b392bed2f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9CJ CVE: CVE-2023-52693 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit ccd45faf4973746c4f30ea41eec864e5cf191099 ] If acpi_get_parent() called in acpi_video_dev_register_backlight() fails, for example, because acpi_ut_acquire_mutex() fails inside acpi_get_parent), this can lead to incorrect (uninitialized) acpi_parent handle being passed to acpi_get_pci_dev() for detecting the parent pci device. Check acpi_get_parent() result and set parent device only in case of success. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 9661e92c10a9 ("acpi: tie ACPI backlight devices to PCI devices if possible") Signed-off-by: Nikita Kiryushin <kiryushin(a)ancud.ru> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- drivers/acpi/acpi_video.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index cf6c9ffe04a2..9d384656323a 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -1788,12 +1788,12 @@ static void acpi_video_dev_register_backlight(struct acpi_video_device *device) return; count++; - acpi_get_parent(device->dev->handle, &acpi_parent); - - pdev = acpi_get_pci_dev(acpi_parent); - if (pdev) { - parent = &pdev->dev; - pci_dev_put(pdev); + if (ACPI_SUCCESS(acpi_get_parent(device->dev->handle, &acpi_parent))) { + pdev = acpi_get_pci_dev(acpi_parent); + if (pdev) { + parent = &pdev->dev; + pci_dev_put(pdev); + } } memset(&props, 0, sizeof(struct backlight_properties)); -- 2.25.1

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[PATCH OLK-5.10] netfilter: nft_set_pipapo: do not free live element
by Guo Mengqi 11 Jun '24

11 Jun '24

From: Florian Westphal <fw(a)strlen.de> mainline inclusion from mainline-v6.9-rc5 commit 3cfc9ec039af60dbd8965ae085b2c2ccdcfbe1cc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9JFG2 CVE: CVE-2024-26924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?i… -------------------------------- Pablo reports a crash with large batches of elements with a back-to-back add/remove pattern. Quoting Pablo: add_elem("00000000") timeout 100 ms ... add_elem("0000000X") timeout 100 ms del_elem("0000000X") <---------------- delete one that was just added ... add_elem("00005000") timeout 100 ms 1) nft_pipapo_remove() removes element 0000000X Then, KASAN shows a splat. Looking at the remove function there is a chance that we will drop a rule that maps to a non-deactivated element. Removal happens in two steps, first we do a lookup for key k and return the to-be-removed element and mark it as inactive in the next generation. Then, in a second step, the element gets removed from the set/map. The _remove function does not work correctly if we have more than one element that share the same key. This can happen if we insert an element into a set when the set already holds an element with same key, but the element mapping to the existing key has timed out or is not active in the next generation. In such case its possible that removal will unmap the wrong element. If this happens, we will leak the non-deactivated element, it becomes unreachable. The element that got deactivated (and will be freed later) will remain reachable in the set data structure, this can result in a crash when such an element is retrieved during lookup (stale pointer). Add a check that the fully matching key does in fact map to the element that we have marked as inactive in the deactivation step. If not, we need to continue searching. Add a bug/warn trap at the end of the function as well, the remove function must not ever be called with an invisible/unreachable/non-existent element. v2: avoid uneeded temporary variable (Stefano) Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges") Reported-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Reviewed-by: Stefano Brivio <sbrivio(a)redhat.com> Signed-off-by: Florian Westphal <fw(a)strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Wei Li <liwei391(a)huawei.com> --- net/netfilter/nft_set_pipapo.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 9c311b6f37af..8c43335d59f6 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -1980,6 +1980,8 @@ static void nft_pipapo_remove(const struct net *net, const struct nft_set *set, rules_fx = rules_f0; nft_pipapo_for_each_field(f, i, m) { + bool last = i == m->field_count - 1; + if (!pipapo_match_field(f, start, rules_fx, match_start, match_end)) break; @@ -1992,16 +1994,18 @@ static void nft_pipapo_remove(const struct net *net, const struct nft_set *set, match_start += NFT_PIPAPO_GROUPS_PADDED_SIZE(f); match_end += NFT_PIPAPO_GROUPS_PADDED_SIZE(f); - } - if (i == m->field_count) { - priv->dirty = true; - pipapo_drop(m, rulemap); - return; + if (last && f->mt[rulemap[i].to].e == e) { + priv->dirty = true; + pipapo_drop(m, rulemap); + return; + } } first_rule += rules_f0; } + + WARN_ON_ONCE(1); /* elem_priv not found */ } /** -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] aio: fix mremap after fork null-deref
by Guo Mengqi 11 Jun '24

11 Jun '24

From: Seth Jenkins <sethjenkins(a)google.com> stable inclusion from stable-v5.10.169 commit c261f798f7baa8080cf0214081d43d5f86bb073f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9K29F Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 81e9d6f8647650a7bead74c5f926e29970e834d1 upstream. Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [jmoyer(a)redhat.com: fix 80 column issue] Link: https://lkml.kernel.org/r/x49sffq4nvg.fsf@segfault.boston.devel.redhat.com Fixes: e4a0d3e720e7 ("aio: Make it possible to remap aio ring") Signed-off-by: Seth Jenkins <sethjenkins(a)google.com> Signed-off-by: Jeff Moyer <jmoyer(a)redhat.com> Cc: Alexander Viro <viro(a)zeniv.linux.org.uk> Cc: Benjamin LaHaise <bcrl(a)kvack.org> Cc: Jann Horn <jannh(a)google.com> Cc: Pavel Emelyanov <xemul(a)parallels.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- fs/aio.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/aio.c b/fs/aio.c index 0063e4bc0aad..00641a1ad0b3 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -335,6 +335,9 @@ static int aio_ring_mremap(struct vm_area_struct *vma) spin_lock(&mm->ioctx_lock); rcu_read_lock(); table = rcu_dereference(mm->ioctx_table); + if (!table) + goto out_unlock; + for (i = 0; i < table->nr; i++) { struct kioctx *ctx; @@ -348,6 +351,7 @@ static int aio_ring_mremap(struct vm_area_struct *vma) } } +out_unlock: rcu_read_unlock(); spin_unlock(&mm->ioctx_lock); return res; -- 2.17.1

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[PATCH OLK-5.10 0/2] CVE-2022-48652
by Guo Mengqi 11 Jun '24

11 Jun '24

CVE-2022-48652 Anatolii Gerasymenko (1): ice: ethtool: Prohibit improper channel config for DCB Ding Hui (1): ice: Fix crash by keep old cfg when update TCs more than queues drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 ++++++ drivers/net/ethernet/intel/ice/ice_lib.c | 36 ++++++++++++++++---- 2 files changed, 40 insertions(+), 6 deletions(-) -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1 0/2] CVE-2022-48652
by Guo Mengqi 11 Jun '24

11 Jun '24

CVE-2022-48652 Anatolii Gerasymenko (1): ice: ethtool: Prohibit improper channel config for DCB Ding Hui (1): ice: Fix crash by keep old cfg when update TCs more than queues drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 ++++++ drivers/net/ethernet/intel/ice/ice_lib.c | 36 ++++++++++++++++---- 2 files changed, 40 insertions(+), 6 deletions(-) -- 2.17.1

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[PATCH OLK-5.10] usb: typec: ucsi: Limit read size on v1.2
by Zheng Zucheng 11 Jun '24

11 Jun '24

From: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> stable inclusion from stable-v6.6.27 commit 266f403ec47573046dee4bcebda82777ce702c40 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QGLG CVE: CVE-2024-35924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b3db266fb031fba88c423d4bb8983a73a3db6527 ] Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2. Tested-by: Neil Armstrong <neil.armstrong(a)linaro.org> Reviewed-by: Prashant Malani <pmalani(a)chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus(a)linux.intel.com> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> Link: https://lore.kernel.org/r/20240209143723.v5.1.Iacf5570a66b82b73ef03daa6557e… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Conflicts: drivers/usb/typec/ucsi/ucsi.c [Some contexts around ucsi_register different. No functional impact.] Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- drivers/usb/typec/ucsi/ucsi.c | 26 ++++++++++++++++++++++++-- drivers/usb/typec/ucsi/ucsi.h | 11 +++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 4cd5c291cdf3..be3104dd56a2 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -36,6 +36,19 @@ */ #define UCSI_SWAP_TIMEOUT_MS 5000 +static int ucsi_read_message_in(struct ucsi *ucsi, void *buf, + size_t buf_size) +{ + /* + * Below UCSI 2.0, MESSAGE_IN was limited to 16 bytes. Truncate the + * reads here. + */ + if (ucsi->version <= UCSI_VERSION_1_2) + buf_size = clamp(buf_size, (size_t)0, (size_t)16); + + return ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, buf, buf_size); +} + static int ucsi_acknowledge_command(struct ucsi *ucsi) { u64 ctrl; @@ -72,7 +85,7 @@ static int ucsi_read_error(struct ucsi *ucsi) if (ret < 0) return ret; - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, &error, sizeof(error)); + ret = ucsi_read_message_in(ucsi, &error, sizeof(error)); if (ret) return ret; @@ -165,7 +178,7 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command, length = ret; if (data) { - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, data, size); + ret = ucsi_read_message_in(ucsi, data, size); if (ret) goto out; } @@ -1303,6 +1316,15 @@ int ucsi_register(struct ucsi *ucsi) if (!ucsi->version) return -ENODEV; + /* + * Version format is JJ.M.N (JJ = Major version, M = Minor version, + * N = sub-minor version). + */ + dev_dbg(ucsi->dev, "Registered UCSI interface with version %x.%x.%x", + UCSI_BCD_GET_MAJOR(ucsi->version), + UCSI_BCD_GET_MINOR(ucsi->version), + UCSI_BCD_GET_SUBMINOR(ucsi->version)); + queue_work(system_long_wq, &ucsi->work); return 0; diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index fce23ad16c6d..32f25dc88258 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -21,6 +21,17 @@ struct ucsi_altmode; #define UCSI_CONTROL 8 #define UCSI_MESSAGE_IN 16 #define UCSI_MESSAGE_OUT 32 +#define UCSIv2_MESSAGE_OUT 272 + +/* UCSI versions */ +#define UCSI_VERSION_1_2 0x0120 +#define UCSI_VERSION_2_0 0x0200 +#define UCSI_VERSION_2_1 0x0210 +#define UCSI_VERSION_3_0 0x0300 + +#define UCSI_BCD_GET_MAJOR(_v_) (((_v_) >> 8) & 0xFF) +#define UCSI_BCD_GET_MINOR(_v_) (((_v_) >> 4) & 0x0F) +#define UCSI_BCD_GET_SUBMINOR(_v_) ((_v_) & 0x0F) /* Command Status and Connector Change Indication (CCI) bits */ #define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 1)) >> 1) -- 2.34.1

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[PATCH openEuler-22.03-LTS-SP1] usb: typec: ucsi: Limit read size on v1.2
by Zheng Zucheng 11 Jun '24

11 Jun '24

From: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> stable inclusion from stable-v6.6.27 commit 266f403ec47573046dee4bcebda82777ce702c40 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QGLG CVE: CVE-2024-35924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b3db266fb031fba88c423d4bb8983a73a3db6527 ] Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2. Tested-by: Neil Armstrong <neil.armstrong(a)linaro.org> Reviewed-by: Prashant Malani <pmalani(a)chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus(a)linux.intel.com> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> Link: https://lore.kernel.org/r/20240209143723.v5.1.Iacf5570a66b82b73ef03daa6557e… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Conflicts: drivers/usb/typec/ucsi/ucsi.c [Some contexts around ucsi_register different. No functional impact.] Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- drivers/usb/typec/ucsi/ucsi.c | 26 ++++++++++++++++++++++++-- drivers/usb/typec/ucsi/ucsi.h | 11 +++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 4cd5c291cdf3..be3104dd56a2 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -36,6 +36,19 @@ */ #define UCSI_SWAP_TIMEOUT_MS 5000 +static int ucsi_read_message_in(struct ucsi *ucsi, void *buf, + size_t buf_size) +{ + /* + * Below UCSI 2.0, MESSAGE_IN was limited to 16 bytes. Truncate the + * reads here. + */ + if (ucsi->version <= UCSI_VERSION_1_2) + buf_size = clamp(buf_size, (size_t)0, (size_t)16); + + return ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, buf, buf_size); +} + static int ucsi_acknowledge_command(struct ucsi *ucsi) { u64 ctrl; @@ -72,7 +85,7 @@ static int ucsi_read_error(struct ucsi *ucsi) if (ret < 0) return ret; - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, &error, sizeof(error)); + ret = ucsi_read_message_in(ucsi, &error, sizeof(error)); if (ret) return ret; @@ -165,7 +178,7 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command, length = ret; if (data) { - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, data, size); + ret = ucsi_read_message_in(ucsi, data, size); if (ret) goto out; } @@ -1303,6 +1316,15 @@ int ucsi_register(struct ucsi *ucsi) if (!ucsi->version) return -ENODEV; + /* + * Version format is JJ.M.N (JJ = Major version, M = Minor version, + * N = sub-minor version). + */ + dev_dbg(ucsi->dev, "Registered UCSI interface with version %x.%x.%x", + UCSI_BCD_GET_MAJOR(ucsi->version), + UCSI_BCD_GET_MINOR(ucsi->version), + UCSI_BCD_GET_SUBMINOR(ucsi->version)); + queue_work(system_long_wq, &ucsi->work); return 0; diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index fce23ad16c6d..32f25dc88258 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -21,6 +21,17 @@ struct ucsi_altmode; #define UCSI_CONTROL 8 #define UCSI_MESSAGE_IN 16 #define UCSI_MESSAGE_OUT 32 +#define UCSIv2_MESSAGE_OUT 272 + +/* UCSI versions */ +#define UCSI_VERSION_1_2 0x0120 +#define UCSI_VERSION_2_0 0x0200 +#define UCSI_VERSION_2_1 0x0210 +#define UCSI_VERSION_3_0 0x0300 + +#define UCSI_BCD_GET_MAJOR(_v_) (((_v_) >> 8) & 0xFF) +#define UCSI_BCD_GET_MINOR(_v_) (((_v_) >> 4) & 0x0F) +#define UCSI_BCD_GET_SUBMINOR(_v_) ((_v_) & 0x0F) /* Command Status and Connector Change Indication (CCI) bits */ #define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 1)) >> 1) -- 2.34.1

2 1

[PATCH OLK-5.10] iomap: Don't finish dio under irq when there exists pages
by Zhihao Cheng 11 Jun '24

11 Jun '24

From: Zhihao Cheng <chengzhihao1(a)huawei.com> hulk inclusion category: perf bugzilla: https://gitee.com/openeuler/kernel/issues/IA4DAW CVE: NA -------------------------------- Fixes: 48774b90b5677bdb4 ("ext4: Optimize endio process for DIO overwrites") Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/iomap/direct-io.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..540f300c5685 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -180,7 +180,9 @@ static void iomap_dio_bio_end_io(struct bio *bio) /* * Flagged with IOMAP_DIO_INLINE_COMP, we can complete it inline */ - if (dio->flags & IOMAP_DIO_INLINE_COMP) { + if ((dio->flags & IOMAP_DIO_INLINE_COMP) && + !(dio->size && (dio->flags & IOMAP_DIO_WRITE) && + file_inode(iocb->ki_filp)->i_mapping->nrpages)) { iomap_dio_complete_work(&dio->aio.work); goto release_bio; } -- 2.31.1

2 1

[PATCH OLK-6.6] clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change
by Yu Liao 11 Jun '24

11 Jun '24

From: Jernej Skrabec <jernej.skrabec(a)gmail.com> stable inclusion from stable-v6.6.31 commit 0b82eb134d2942ecc669e2ab2be3f0a58d79428a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TOGH CVE: CVE-2023-52882 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 7e91ed763dc07437777bd012af7a2bd4493731ff ] While PLL CPUX clock rate change when CPU is running from it works in vast majority of cases, now and then it causes instability. This leads to system crashes and other undefined behaviour. After a lot of testing (30+ hours) while also doing a lot of frequency switches, we can't observe any instability issues anymore when doing reparenting to stable clock like 24 MHz oscillator. Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU") Reported-by: Chad Wagner <wagnerch42(a)gmail.com> Link: https://forum.libreelec.tv/thread/27295-orange-pi-3-lts-freezes/ Tested-by: Chad Wagner <wagnerch42(a)gmail.com> Reviewed-by: Chen-Yu Tsai <wens(a)csie.org> Link: https://lore.kernel.org/r/20231013181712.2128037-1-jernej.skrabec@gmail.com Signed-off-by: Jernej Skrabec <jernej.skrabec(a)gmail.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index 42568c616181..892df807275c 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -1181,11 +1181,18 @@ static const u32 usb2_clk_regs[] = { SUN50I_H6_USB3_CLK_REG, }; +static struct ccu_mux_nb sun50i_h6_cpu_nb = { + .common = &cpux_clk.common, + .cm = &cpux_clk.mux, + .delay_us = 1, + .bypass_index = 0, /* index of 24 MHz oscillator */ +}; + static int sun50i_h6_ccu_probe(struct platform_device *pdev) { void __iomem *reg; + int i, ret; u32 val; - int i; reg = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(reg)) @@ -1252,7 +1259,15 @@ static int sun50i_h6_ccu_probe(struct platform_device *pdev) val |= BIT(24); writel(val, reg + SUN50I_H6_HDMI_CEC_CLK_REG); - return devm_sunxi_ccu_probe(&pdev->dev, reg, &sun50i_h6_ccu_desc); + ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun50i_h6_ccu_desc); + if (ret) + return ret; + + /* Reparent CPU during PLL CPUX rate changes */ + ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, + &sun50i_h6_cpu_nb); + + return 0; } static const struct of_device_id sun50i_h6_ccu_ids[] = { -- 2.33.0

2 1

[PATCH OLK-5.10] firewire: ohci: mask bus reset interrupts between ISR and bottom half
by Ze Zuo 11 Jun '24

11 Jun '24

From: Adam Goldman <adamg(a)pobox.com> stable inclusion from stable-v5.10.217 commit fa273f312334246c909475c5868e6daab889cc8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UOCQ CVE: CVE-2024-36950 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 752e3c53de0fa3b7d817a83050b6699b8e9c6ec9 ] In the FireWire OHCI interrupt handler, if a bus reset interrupt has occurred, mask bus reset interrupts until bus_reset_work has serviced and cleared the interrupt. Normally, we always leave bus reset interrupts masked. We infer the bus reset from the self-ID interrupt that happens shortly thereafter. A scenario where we unmask bus reset interrupts was introduced in 2008 in a007bb857e0b26f5d8b73c2ff90782d9c0972620: If OHCI_PARAM_DEBUG_BUSRESETS (8) is set in the debug parameter bitmask, we will unmask bus reset interrupts so we can log them. irq_handler logs the bus reset interrupt. However, we can't clear the bus reset event flag in irq_handler, because we won't service the event until later. irq_handler exits with the event flag still set. If the corresponding interrupt is still unmasked, the first bus reset will usually freeze the system due to irq_handler being called again each time it exits. This freeze can be reproduced by loading firewire_ohci with "modprobe firewire_ohci debug=-1" (to enable all debugging output). Apparently there are also some cases where bus_reset_work will get called soon enough to clear the event, and operation will continue normally. This freeze was first reported a few months after a007bb85 was committed, but until now it was never fixed. The debug level could safely be set to -1 through sysfs after the module was loaded, but this would be ineffectual in logging bus reset interrupts since they were only unmasked during initialization. irq_handler will now leave the event flag set but mask bus reset interrupts, so irq_handler won't be called again and there will be no freeze. If OHCI_PARAM_DEBUG_BUSRESETS is enabled, bus_reset_work will unmask the interrupt after servicing the event, so future interrupts will be caught as desired. As a side effect to this change, OHCI_PARAM_DEBUG_BUSRESETS can now be enabled through sysfs in addition to during initial module loading. However, when enabled through sysfs, logging of bus reset interrupts will be effective only starting with the second bus reset, after bus_reset_work has executed. Signed-off-by: Adam Goldman <adamg(a)pobox.com> Signed-off-by: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- drivers/firewire/ohci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 45d19cc0aeac..9b2471d12783 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -2049,6 +2049,8 @@ static void bus_reset_work(struct work_struct *work) ohci->generation = generation; reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset); + if (param_debug & OHCI_PARAM_DEBUG_BUSRESETS) + reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_busReset); if (ohci->quirks & QUIRK_RESET_PACKET) ohci->request_generation = generation; @@ -2115,12 +2117,14 @@ static irqreturn_t irq_handler(int irq, void *data) return IRQ_NONE; /* - * busReset and postedWriteErr must not be cleared yet + * busReset and postedWriteErr events must not be cleared yet * (OHCI 1.1 clauses 7.2.3.2 and 13.2.8.1) */ reg_write(ohci, OHCI1394_IntEventClear, event & ~(OHCI1394_busReset | OHCI1394_postedWriteErr)); log_irqs(ohci, event); + if (event & OHCI1394_busReset) + reg_write(ohci, OHCI1394_IntMaskClear, OHCI1394_busReset); if (event & OHCI1394_selfIDComplete) queue_work(selfid_workqueue, &ohci->bus_reset_work); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change
by Yu Liao 11 Jun '24

11 Jun '24

From: Jernej Skrabec <jernej.skrabec(a)gmail.com> stable inclusion from stable-v5.10.217 commit bfc78b4628497eb6df09a6b5bba9dd31616ee175 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TOGH CVE: CVE-2023-52882 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 7e91ed763dc07437777bd012af7a2bd4493731ff ] While PLL CPUX clock rate change when CPU is running from it works in vast majority of cases, now and then it causes instability. This leads to system crashes and other undefined behaviour. After a lot of testing (30+ hours) while also doing a lot of frequency switches, we can't observe any instability issues anymore when doing reparenting to stable clock like 24 MHz oscillator. Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU") Reported-by: Chad Wagner <wagnerch42(a)gmail.com> Link: https://forum.libreelec.tv/thread/27295-orange-pi-3-lts-freezes/ Tested-by: Chad Wagner <wagnerch42(a)gmail.com> Reviewed-by: Chen-Yu Tsai <wens(a)csie.org> Link: https://lore.kernel.org/r/20231013181712.2128037-1-jernej.skrabec@gmail.com Signed-off-by: Jernej Skrabec <jernej.skrabec(a)gmail.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index bff446b78290..2d4fc55718eb 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -1181,12 +1181,19 @@ static const u32 usb2_clk_regs[] = { SUN50I_H6_USB3_CLK_REG, }; +static struct ccu_mux_nb sun50i_h6_cpu_nb = { + .common = &cpux_clk.common, + .cm = &cpux_clk.mux, + .delay_us = 1, + .bypass_index = 0, /* index of 24 MHz oscillator */ +}; + static int sun50i_h6_ccu_probe(struct platform_device *pdev) { struct resource *res; void __iomem *reg; + int i, ret; u32 val; - int i; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg = devm_ioremap_resource(&pdev->dev, res); @@ -1240,7 +1247,15 @@ static int sun50i_h6_ccu_probe(struct platform_device *pdev) val |= BIT(24); writel(val, reg + SUN50I_H6_HDMI_CEC_CLK_REG); - return sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_h6_ccu_desc); + ret = sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_h6_ccu_desc); + if (ret) + return ret; + + /* Reparent CPU during PLL CPUX rate changes */ + ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, + &sun50i_h6_cpu_nb); + + return 0; } static const struct of_device_id sun50i_h6_ccu_ids[] = { -- 2.33.0

2 1

[PATCH OLK-5.10] clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change
by Yu Liao 11 Jun '24

11 Jun '24

From: Jernej Skrabec <jernej.skrabec(a)gmail.com> stable inclusion from stable-v5.10.217 commit bfc78b4628497eb6df09a6b5bba9dd31616ee175 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TOGH CVE: CVE-2023-52882 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 7e91ed763dc07437777bd012af7a2bd4493731ff ] While PLL CPUX clock rate change when CPU is running from it works in vast majority of cases, now and then it causes instability. This leads to system crashes and other undefined behaviour. After a lot of testing (30+ hours) while also doing a lot of frequency switches, we can't observe any instability issues anymore when doing reparenting to stable clock like 24 MHz oscillator. Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU") Reported-by: Chad Wagner <wagnerch42(a)gmail.com> Link: https://forum.libreelec.tv/thread/27295-orange-pi-3-lts-freezes/ Tested-by: Chad Wagner <wagnerch42(a)gmail.com> Reviewed-by: Chen-Yu Tsai <wens(a)csie.org> Link: https://lore.kernel.org/r/20231013181712.2128037-1-jernej.skrabec@gmail.com Signed-off-by: Jernej Skrabec <jernej.skrabec(a)gmail.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index bff446b78290..2d4fc55718eb 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -1181,12 +1181,19 @@ static const u32 usb2_clk_regs[] = { SUN50I_H6_USB3_CLK_REG, }; +static struct ccu_mux_nb sun50i_h6_cpu_nb = { + .common = &cpux_clk.common, + .cm = &cpux_clk.mux, + .delay_us = 1, + .bypass_index = 0, /* index of 24 MHz oscillator */ +}; + static int sun50i_h6_ccu_probe(struct platform_device *pdev) { struct resource *res; void __iomem *reg; + int i, ret; u32 val; - int i; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg = devm_ioremap_resource(&pdev->dev, res); @@ -1240,7 +1247,15 @@ static int sun50i_h6_ccu_probe(struct platform_device *pdev) val |= BIT(24); writel(val, reg + SUN50I_H6_HDMI_CEC_CLK_REG); - return sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_h6_ccu_desc); + ret = sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_h6_ccu_desc); + if (ret) + return ret; + + /* Reparent CPU during PLL CPUX rate changes */ + ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, + &sun50i_h6_cpu_nb); + + return 0; } static const struct of_device_id sun50i_h6_ccu_ids[] = { -- 2.33.0

2 1

[PATCH openEuler-1.0-LTS] firewire: ohci: mask bus reset interrupts between ISR and bottom half
by Ze Zuo 11 Jun '24

11 Jun '24

From: Adam Goldman <adamg(a)pobox.com> stable inclusion from stable-v5.10.217 commit fa273f312334246c909475c5868e6daab889cc8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UOCQ CVE: CVE-2024-36950 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 752e3c53de0fa3b7d817a83050b6699b8e9c6ec9 ] In the FireWire OHCI interrupt handler, if a bus reset interrupt has occurred, mask bus reset interrupts until bus_reset_work has serviced and cleared the interrupt. Normally, we always leave bus reset interrupts masked. We infer the bus reset from the self-ID interrupt that happens shortly thereafter. A scenario where we unmask bus reset interrupts was introduced in 2008 in a007bb857e0b26f5d8b73c2ff90782d9c0972620: If OHCI_PARAM_DEBUG_BUSRESETS (8) is set in the debug parameter bitmask, we will unmask bus reset interrupts so we can log them. irq_handler logs the bus reset interrupt. However, we can't clear the bus reset event flag in irq_handler, because we won't service the event until later. irq_handler exits with the event flag still set. If the corresponding interrupt is still unmasked, the first bus reset will usually freeze the system due to irq_handler being called again each time it exits. This freeze can be reproduced by loading firewire_ohci with "modprobe firewire_ohci debug=-1" (to enable all debugging output). Apparently there are also some cases where bus_reset_work will get called soon enough to clear the event, and operation will continue normally. This freeze was first reported a few months after a007bb85 was committed, but until now it was never fixed. The debug level could safely be set to -1 through sysfs after the module was loaded, but this would be ineffectual in logging bus reset interrupts since they were only unmasked during initialization. irq_handler will now leave the event flag set but mask bus reset interrupts, so irq_handler won't be called again and there will be no freeze. If OHCI_PARAM_DEBUG_BUSRESETS is enabled, bus_reset_work will unmask the interrupt after servicing the event, so future interrupts will be caught as desired. As a side effect to this change, OHCI_PARAM_DEBUG_BUSRESETS can now be enabled through sysfs in addition to during initial module loading. However, when enabled through sysfs, logging of bus reset interrupts will be effective only starting with the second bus reset, after bus_reset_work has executed. Signed-off-by: Adam Goldman <adamg(a)pobox.com> Signed-off-by: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- drivers/firewire/ohci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 45c048751f3b..11f53e5a4060 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -2018,6 +2018,8 @@ static void bus_reset_work(struct work_struct *work) ohci->generation = generation; reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset); + if (param_debug & OHCI_PARAM_DEBUG_BUSRESETS) + reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_busReset); if (ohci->quirks & QUIRK_RESET_PACKET) ohci->request_generation = generation; @@ -2084,12 +2086,14 @@ static irqreturn_t irq_handler(int irq, void *data) return IRQ_NONE; /* - * busReset and postedWriteErr must not be cleared yet + * busReset and postedWriteErr events must not be cleared yet * (OHCI 1.1 clauses 7.2.3.2 and 13.2.8.1) */ reg_write(ohci, OHCI1394_IntEventClear, event & ~(OHCI1394_busReset | OHCI1394_postedWriteErr)); log_irqs(ohci, event); + if (event & OHCI1394_busReset) + reg_write(ohci, OHCI1394_IntMaskClear, OHCI1394_busReset); if (event & OHCI1394_selfIDComplete) queue_work(selfid_workqueue, &ohci->bus_reset_work); -- 2.25.1

2 1

[PATCH OLK-5.10 0/2] Fix xfs fsmap errors.
by Zizhi Wo 11 Jun '24

11 Jun '24

Fix FS_IOC_GETFSMAP ioctl error in xfs. Darrick J. Wong (2): xfs: fix interval filtering in multi-step fsmap queries xfs: fix an agbno overflow in __xfs_getfsmap_datadev fs/xfs/xfs_fsmap.c | 80 ++++++++++++++++++++++++++++++++++------------ 1 file changed, 60 insertions(+), 20 deletions(-) -- 2.39.2

2 3

[PATCH openEuler-1.0-LTS] wifi: nl80211: don't free NULL coalescing rule
by Zhang Zekun 11 Jun '24

11 Jun '24

From: Johannes Berg <johannes.berg(a)intel.com> mainline inclusion from mainline-v6.9-rc6 commit 801ea33ae82d6a9d954074fbcf8ea9d18f1543a7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U96L CVE: CVE-2024-36941 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------- If the parsing fails, we can dereference a NULL pointer here. Cc: stable(a)vger.kernel.org Fixes: be29b99a9b51 ("cfg80211/nl80211: Add packet coalesce support") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit(a)intel.com> Link: https://msgid.link/20240418105220.b328f80406e7.Id75d961050deb05b3e4e354e024… Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- net/wireless/nl80211.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index de9580f13914..5acb25f6d5a8 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -11475,6 +11475,8 @@ static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) error: for (i = 0; i < new_coalesce.n_rules; i++) { tmp_rule = &new_coalesce.rules[i]; + if (!tmp_rule) + continue; for (j = 0; j < tmp_rule->n_patterns; j++) kfree(tmp_rule->patterns[j].mask); kfree(tmp_rule->patterns); -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/5] Fix CVE-2023-52732
by Zizhi Wo 11 Jun '24

11 Jun '24

Fix CVE-2023-52732. Jeff Layton (4): ceph: drop private list from remove_session_caps_cb ceph: fix auth cap handling logic in remove_session_caps_cb ceph: refactor remove_session_caps_cb ceph: shut down access to inode when async create fails Xiubo Li (1): ceph: blocklist the kclient when receiving corrupted snap trace fs/ceph/addr.c | 30 ++++++-- fs/ceph/caps.c | 138 +++++++++++++++++++++++++++++++-- fs/ceph/export.c | 12 ++- fs/ceph/file.c | 13 +++- fs/ceph/inode.c | 33 +++++++- fs/ceph/locks.c | 7 ++ fs/ceph/mds_client.c | 144 ++++++++--------------------------- fs/ceph/snap.c | 36 ++++++++- fs/ceph/super.h | 12 +++ include/linux/ceph/libceph.h | 1 + 10 files changed, 296 insertions(+), 130 deletions(-) -- 2.39.2

2 6

[PATCH OLK-6.6] fs/9p: translate O_TRUNC into OTRUNC
by Ye Bin 11 Jun '24

11 Jun '24

From: Joakim Sindholt <opensource(a)zhasha.com> stable inclusion from stable-v6.6.31 commit dbf68fd7e392541d65a200906026f3a3353f84fe category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9UNVB CVE: CVE-2024-36964 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 87de39e70503e04ddb58965520b15eb9efa7eef3 ] This one hits both 9P2000 and .u as it appears v9fs has never translated the O_TRUNC flag. Signed-off-by: Joakim Sindholt <opensource(a)zhasha.com> Signed-off-by: Eric Van Hensbergen <ericvh(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ye Bin <yebin10(a)huawei.com> --- fs/9p/vfs_inode.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index ea695c4a7a3f..0e44c6765b51 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -178,6 +178,9 @@ int v9fs_uflags2omode(int uflags, int extended) break; } + if (uflags & O_TRUNC) + ret |= P9_OTRUNC; + if (extended) { if (uflags & O_EXCL) ret |= P9_OEXCL; -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS v2] ext4: avoid deadlock in fs reclaim with page writeback
by Baokun Li 11 Jun '24

11 Jun '24

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-v6.4-rc2 commit 00d873c17e29cc32d90ca852b82685f1673acaa5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SYGK CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with switching of journalled data flag or inode format. This lock can however cause a deadlock like: CPU0 CPU1 ext4_writepages() percpu_down_read(sbi->s_writepages_rwsem); ext4_change_inode_journal_flag() percpu_down_write(sbi->s_writepages_rwsem); - blocks, all readers block from now on ext4_do_writepages() ext4_init_io_end() kmem_cache_zalloc(io_end_cachep, GFP_KERNEL) fs_reclaim frees dentry... dentry_unlink_inode() iput() - last ref => iput_final() - inode dirty => write_inode_now()... ext4_writepages() tries to acquire sbi->s_writepages_rwsem and blocks forever Make sure we cannot recurse into filesystem reclaim from writeback code to avoid the deadlock. Reported-by: syzbot+6898da502aef574c5f8a(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/all/0000000000004c66b405fa108e27@google.com Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages") CC: stable(a)vger.kernel.org Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230504124723.20205-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Conflicts: fs/ext4/ext4.h fs/ext4/super.c fs/ext4/inode.c fs/ext4/migrate.c [Because we have merged in 41d10c74ff04 ("ext4: fix race between writepages and remount") and we don't have ext4_do_writepages() yet and i_mmap_sem hasn't switched to invalidate_lock yet.] Signed-off-by: Baokun Li <libaokun1(a)huawei.com> --- V1->V2: Correct fs/ext4/migrate.c fs/ext4/ext4.h | 25 +++++++++++++++++++++++++ fs/ext4/inode.c | 18 ++++++++++-------- fs/ext4/migrate.c | 11 ++++++----- fs/ext4/super.c | 11 ++++++----- 4 files changed, 47 insertions(+), 18 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 6df919b154b4..1794f5ce1b46 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -37,6 +37,7 @@ #include <crypto/hash.h> #include <linux/falloc.h> #include <linux/percpu-rwsem.h> +#include <linux/sched/mm.h> #ifdef __KERNEL__ #include <linux/compat.h> #endif @@ -1571,6 +1572,30 @@ static inline struct ext4_inode_info *EXT4_I(struct inode *inode) return container_of(inode, struct ext4_inode_info, vfs_inode); } +static inline int ext4_writepages_down_read(struct super_block *sb) +{ + percpu_down_read(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_read(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_read(&EXT4_SB(sb)->s_writepages_rwsem); +} + +static inline int ext4_writepages_down_write(struct super_block *sb) +{ + percpu_down_write(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_write(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_write(&EXT4_SB(sb)->s_writepages_rwsem); +} + static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) { return ino == EXT4_ROOT_INO || diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 35033bb43149..7110fda36c14 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2744,13 +2744,14 @@ static int ext4_writepages(struct address_space *mapping, struct blk_plug plug; bool give_up_on_write = false; unsigned long retry_warn_ddl = 0; + int alloc_ctx; #define RETRY_WARN_TIMEOUT (30 * HZ) if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); /* @@ -2981,7 +2982,7 @@ static int ext4_writepages(struct address_space *mapping, out_writepages: trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -2992,17 +2993,18 @@ static int ext4_dax_writepages(struct address_space *mapping, long nr_to_write = wbc->nr_to_write; struct inode *inode = mapping->host; struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb); + int alloc_ctx; if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); ret = dax_writeback_mapping_range(mapping, inode->i_sb->s_bdev, wbc); trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -6245,7 +6247,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) journal_t *journal; handle_t *handle; int err; - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + int alloc_ctx; /* * We have to be very careful here: changing a data block's @@ -6285,7 +6287,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) } } - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); jbd2_journal_lock_updates(journal); /* @@ -6302,7 +6304,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) err = jbd2_journal_flush(journal); if (err < 0) { jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); ext4_inode_resume_unlocked_dio(inode); return err; } @@ -6311,7 +6313,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) ext4_set_aops(inode); jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); if (val) up_write(&EXT4_I(inode)->i_mmap_sem); diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index ed9e7816efbb..443a09087dac 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -407,7 +407,6 @@ static int free_ext_block(handle_t *handle, struct inode *inode) int ext4_ext_migrate(struct inode *inode) { - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); handle_t *handle; int retval = 0, i; __le32 *i_data; @@ -417,6 +416,7 @@ int ext4_ext_migrate(struct inode *inode) unsigned long max_entries; __u32 goal, tmp_csum_seed; uid_t owner[2]; + int alloc_ctx; /* * If the filesystem does not support extents, or the inode @@ -432,7 +432,7 @@ int ext4_ext_migrate(struct inode *inode) */ return retval; - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); /* * Worst case we can touch the allocation bitmaps and a block @@ -584,7 +584,7 @@ int ext4_ext_migrate(struct inode *inode) unlock_new_inode(tmp_inode); iput(tmp_inode); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return retval; } @@ -603,6 +603,7 @@ int ext4_ind_migrate(struct inode *inode) ext4_fsblk_t blk; handle_t *handle; int ret; + int alloc_ctx; if (!ext4_has_feature_extents(inode->i_sb) || (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) @@ -619,7 +620,7 @@ int ext4_ind_migrate(struct inode *inode) if (test_opt(inode->i_sb, DELALLOC)) ext4_alloc_da_blocks(inode); - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1); if (IS_ERR(handle)) { @@ -661,6 +662,6 @@ int ext4_ind_migrate(struct inode *inode) ext4_journal_stop(handle); up_write(&EXT4_I(inode)->i_data_sem); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return ret; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 1cfec3ac7c9e..8761fe5037a6 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5559,6 +5559,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) ext4_group_t g; unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO; int err = 0; + int alloc_ctx; #ifdef CONFIG_QUOTA int i, j; char *to_free[EXT4_MAXQUOTAS]; @@ -5611,13 +5612,13 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) * s_writepages_rwsem to avoid race between writepages ops and * remount. */ - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); if (!parse_options(data, sb, NULL, &journal_ioprio, 1)) { err = -EINVAL; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); goto restore_opts; } - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^ test_opt(sb, JOURNAL_CHECKSUM)) { @@ -5850,7 +5851,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sb_any_quota_suspended(sb)) dquot_resume(sb, -1); - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); sb->s_flags = old_sb_flags; sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_mount_opt2 = old_opts.s_mount_opt2; @@ -5859,7 +5860,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sbi->s_commit_interval = old_opts.s_commit_interval; sbi->s_min_batch_time = old_opts.s_min_batch_time; sbi->s_max_batch_time = old_opts.s_max_batch_time; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if (!test_opt(sb, BLOCK_VALIDITY) && sbi->system_blks) ext4_release_system_zone(sb); -- 2.31.1

2 1

[PATCH OLK-6.6] scsi: lpfc: Release hbalock before calling lpfc_worker_wake_up()
by Ye Bin 11 Jun '24

11 Jun '24

From: Justin Tee <justin.tee(a)broadcom.com> stable inclusion from stable-v6.6.31 commit e8bf2c05e8ad68e90f9d5889a9e4ef3f6fe00683 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9U211 CVE: CVE-2024-36924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit ded20192dff31c91cef2a04f7e20e60e9bb887d3 ] lpfc_worker_wake_up() calls the lpfc_work_done() routine, which takes the hbalock. Thus, lpfc_worker_wake_up() should not be called while holding the hbalock to avoid potential deadlock. Signed-off-by: Justin Tee <justin.tee(a)broadcom.com> Link: https://lore.kernel.org/r/20240305200503.57317-7-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ye Bin <yebin10(a)huawei.com> --- drivers/scsi/lpfc/lpfc_els.c | 20 ++++++++++---------- drivers/scsi/lpfc/lpfc_hbadisc.c | 5 ++--- drivers/scsi/lpfc/lpfc_sli.c | 14 +++++++------- 3 files changed, 19 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 18b8325fd419..44d3ada9fbbc 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -4432,23 +4432,23 @@ lpfc_els_retry_delay(struct timer_list *t) unsigned long flags; struct lpfc_work_evt *evtp = &ndlp->els_retry_evt; + /* Hold a node reference for outstanding queued work */ + if (!lpfc_nlp_get(ndlp)) + return; + spin_lock_irqsave(&phba->hbalock, flags); if (!list_empty(&evtp->evt_listp)) { spin_unlock_irqrestore(&phba->hbalock, flags); + lpfc_nlp_put(ndlp); return; } - /* We need to hold the node by incrementing the reference - * count until the queued work is done - */ - evtp->evt_arg1 = lpfc_nlp_get(ndlp); - if (evtp->evt_arg1) { - evtp->evt = LPFC_EVT_ELS_RETRY; - list_add_tail(&evtp->evt_listp, &phba->work_list); - lpfc_worker_wake_up(phba); - } + evtp->evt_arg1 = ndlp; + evtp->evt = LPFC_EVT_ELS_RETRY; + list_add_tail(&evtp->evt_listp, &phba->work_list); spin_unlock_irqrestore(&phba->hbalock, flags); - return; + + lpfc_worker_wake_up(phba); } /** diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 5154eeaee0ec..93703ab6ce03 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -257,7 +257,9 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) if (evtp->evt_arg1) { evtp->evt = LPFC_EVT_DEV_LOSS; list_add_tail(&evtp->evt_listp, &phba->work_list); + spin_unlock_irqrestore(&phba->hbalock, iflags); lpfc_worker_wake_up(phba); + return; } spin_unlock_irqrestore(&phba->hbalock, iflags); } else { @@ -275,10 +277,7 @@ lpfc_dev_loss_tmo_callbk(struct fc_rport *rport) lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); } - } - - return; } /** diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 4dfadf254a72..9dab33686a93 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1217,9 +1217,9 @@ lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, empty = list_empty(&phba->active_rrq_list); list_add_tail(&rrq->list, &phba->active_rrq_list); phba->hba_flag |= HBA_RRQ_ACTIVE; + spin_unlock_irqrestore(&phba->hbalock, iflags); if (empty) lpfc_worker_wake_up(phba); - spin_unlock_irqrestore(&phba->hbalock, iflags); return 0; out: spin_unlock_irqrestore(&phba->hbalock, iflags); @@ -11369,18 +11369,18 @@ lpfc_sli_post_recovery_event(struct lpfc_hba *phba, unsigned long iflags; struct lpfc_work_evt *evtp = &ndlp->recovery_evt; + /* Hold a node reference for outstanding queued work */ + if (!lpfc_nlp_get(ndlp)) + return; + spin_lock_irqsave(&phba->hbalock, iflags); if (!list_empty(&evtp->evt_listp)) { spin_unlock_irqrestore(&phba->hbalock, iflags); + lpfc_nlp_put(ndlp); return; } - /* Incrementing the reference count until the queued work is done. */ - evtp->evt_arg1 = lpfc_nlp_get(ndlp); - if (!evtp->evt_arg1) { - spin_unlock_irqrestore(&phba->hbalock, iflags); - return; - } + evtp->evt_arg1 = ndlp; evtp->evt = LPFC_EVT_RECOVER_PORT; list_add_tail(&evtp->evt_listp, &phba->work_list); spin_unlock_irqrestore(&phba->hbalock, iflags); -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS] ext4: avoid deadlock in fs reclaim with page writeback
by Baokun Li 11 Jun '24

11 Jun '24

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-v6.4-rc2 commit 00d873c17e29cc32d90ca852b82685f1673acaa5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SYGK CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with switching of journalled data flag or inode format. This lock can however cause a deadlock like: CPU0 CPU1 ext4_writepages() percpu_down_read(sbi->s_writepages_rwsem); ext4_change_inode_journal_flag() percpu_down_write(sbi->s_writepages_rwsem); - blocks, all readers block from now on ext4_do_writepages() ext4_init_io_end() kmem_cache_zalloc(io_end_cachep, GFP_KERNEL) fs_reclaim frees dentry... dentry_unlink_inode() iput() - last ref => iput_final() - inode dirty => write_inode_now()... ext4_writepages() tries to acquire sbi->s_writepages_rwsem and blocks forever Make sure we cannot recurse into filesystem reclaim from writeback code to avoid the deadlock. Reported-by: syzbot+6898da502aef574c5f8a(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/all/0000000000004c66b405fa108e27@google.com Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages") CC: stable(a)vger.kernel.org Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230504124723.20205-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Conflicts: fs/ext4/ext4.h fs/ext4/super.c fs/ext4/inode.c fs/ext4/migrate.c [Because we have merged in 41d10c74ff04 ("ext4: fix race between writepages and remount") and we don't have ext4_do_writepages() yet and i_mmap_sem hasn't switched to invalidate_lock yet.] Signed-off-by: Baokun Li <libaokun1(a)huawei.com> --- fs/ext4/ext4.h | 25 +++++++++++++++++++++++++ fs/ext4/inode.c | 18 ++++++++++-------- fs/ext4/super.c | 11 ++++++----- 3 files changed, 41 insertions(+), 13 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 6df919b154b4..1794f5ce1b46 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -37,6 +37,7 @@ #include <crypto/hash.h> #include <linux/falloc.h> #include <linux/percpu-rwsem.h> +#include <linux/sched/mm.h> #ifdef __KERNEL__ #include <linux/compat.h> #endif @@ -1571,6 +1572,30 @@ static inline struct ext4_inode_info *EXT4_I(struct inode *inode) return container_of(inode, struct ext4_inode_info, vfs_inode); } +static inline int ext4_writepages_down_read(struct super_block *sb) +{ + percpu_down_read(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_read(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_read(&EXT4_SB(sb)->s_writepages_rwsem); +} + +static inline int ext4_writepages_down_write(struct super_block *sb) +{ + percpu_down_write(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_write(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_write(&EXT4_SB(sb)->s_writepages_rwsem); +} + static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) { return ino == EXT4_ROOT_INO || diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 35033bb43149..7110fda36c14 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2744,13 +2744,14 @@ static int ext4_writepages(struct address_space *mapping, struct blk_plug plug; bool give_up_on_write = false; unsigned long retry_warn_ddl = 0; + int alloc_ctx; #define RETRY_WARN_TIMEOUT (30 * HZ) if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); /* @@ -2981,7 +2982,7 @@ static int ext4_writepages(struct address_space *mapping, out_writepages: trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -2992,17 +2993,18 @@ static int ext4_dax_writepages(struct address_space *mapping, long nr_to_write = wbc->nr_to_write; struct inode *inode = mapping->host; struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb); + int alloc_ctx; if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); ret = dax_writeback_mapping_range(mapping, inode->i_sb->s_bdev, wbc); trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -6245,7 +6247,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) journal_t *journal; handle_t *handle; int err; - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + int alloc_ctx; /* * We have to be very careful here: changing a data block's @@ -6285,7 +6287,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) } } - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); jbd2_journal_lock_updates(journal); /* @@ -6302,7 +6304,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) err = jbd2_journal_flush(journal); if (err < 0) { jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); ext4_inode_resume_unlocked_dio(inode); return err; } @@ -6311,7 +6313,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) ext4_set_aops(inode); jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); if (val) up_write(&EXT4_I(inode)->i_mmap_sem); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 1cfec3ac7c9e..8761fe5037a6 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5559,6 +5559,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) ext4_group_t g; unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO; int err = 0; + int alloc_ctx; #ifdef CONFIG_QUOTA int i, j; char *to_free[EXT4_MAXQUOTAS]; @@ -5611,13 +5612,13 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) * s_writepages_rwsem to avoid race between writepages ops and * remount. */ - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); if (!parse_options(data, sb, NULL, &journal_ioprio, 1)) { err = -EINVAL; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); goto restore_opts; } - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^ test_opt(sb, JOURNAL_CHECKSUM)) { @@ -5850,7 +5851,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sb_any_quota_suspended(sb)) dquot_resume(sb, -1); - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); sb->s_flags = old_sb_flags; sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_mount_opt2 = old_opts.s_mount_opt2; @@ -5859,7 +5860,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sbi->s_commit_interval = old_opts.s_commit_interval; sbi->s_min_batch_time = old_opts.s_min_batch_time; sbi->s_max_batch_time = old_opts.s_max_batch_time; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if (!test_opt(sb, BLOCK_VALIDITY) && sbi->system_blks) ext4_release_system_zone(sb); -- 2.31.1

2 1

[PATCH OLK-6.6] kabi: reserve kabi for struct device
by Peng Zhang 11 Jun '24

11 Jun '24

From: ZhangPeng <zhangpeng362(a)huawei.com> hulk inclusion category: cleanup bugzilla: https://gitee.com/openeuler/kernel/issues/I8OWRC -------------------------------- Just testing if the kabi check is working. Please ignore this patch. Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> --- include/linux/device.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/device.h b/include/linux/device.h index 17427fc8e035..0128883e652d 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -814,6 +814,7 @@ struct device { KABI_RESERVE(6) KABI_RESERVE(7) KABI_RESERVE(8) + KABI_RESERVE(9) }; /** -- 2.25.1

2 1

[PATCH] kabi: reserve kabi for struct device
by Peng Zhang 11 Jun '24

11 Jun '24

From: ZhangPeng <zhangpeng362(a)huawei.com> hulk inclusion category: cleanup bugzilla: https://gitee.com/openeuler/kernel/issues/I8OWRC -------------------------------- Just testing if the kabi check is working. Please ignore this patch. Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> --- include/linux/device.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/device.h b/include/linux/device.h index 17427fc8e035..0128883e652d 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -814,6 +814,7 @@ struct device { KABI_RESERVE(6) KABI_RESERVE(7) KABI_RESERVE(8) + KABI_RESERVE(9) }; /** -- 2.25.1

1 0

[PATCH openEuler-22.03-LTS-SP1] ext4: avoid deadlock in fs reclaim with page writeback
by Baokun Li 11 Jun '24

11 Jun '24

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-v6.4-rc2 commit 00d873c17e29cc32d90ca852b82685f1673acaa5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SYGK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with switching of journalled data flag or inode format. This lock can however cause a deadlock like: CPU0 CPU1 ext4_writepages() percpu_down_read(sbi->s_writepages_rwsem); ext4_change_inode_journal_flag() percpu_down_write(sbi->s_writepages_rwsem); - blocks, all readers block from now on ext4_do_writepages() ext4_init_io_end() kmem_cache_zalloc(io_end_cachep, GFP_KERNEL) fs_reclaim frees dentry... dentry_unlink_inode() iput() - last ref => iput_final() - inode dirty => write_inode_now()... ext4_writepages() tries to acquire sbi->s_writepages_rwsem and blocks forever Make sure we cannot recurse into filesystem reclaim from writeback code to avoid the deadlock. Reported-by: syzbot+6898da502aef574c5f8a(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/all/0000000000004c66b405fa108e27@google.com Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages") CC: stable(a)vger.kernel.org Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230504124723.20205-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Conflicts: fs/ext4/ext4.h fs/ext4/super.c fs/ext4/inode.c [Because we have merged in 583b2fb551d0 ("ext4: fix race between writepages and remount") and we don't have ext4_do_writepages() yet and i_mmap_sem hasn't switched to invalidate_lock yet.] Signed-off-by: Baokun Li <libaokun1(a)huawei.com> --- fs/ext4/ext4.h | 25 +++++++++++++++++++++++++ fs/ext4/inode.c | 18 ++++++++++-------- fs/ext4/migrate.c | 11 ++++++----- fs/ext4/super.c | 11 ++++++----- 4 files changed, 47 insertions(+), 18 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 5d5ae6f44510..3cf1fe773f4f 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -37,6 +37,7 @@ #include <linux/falloc.h> #include <linux/percpu-rwsem.h> #include <linux/fiemap.h> +#include <linux/sched/mm.h> #ifdef __KERNEL__ #include <linux/compat.h> #endif @@ -1689,6 +1690,30 @@ static inline struct ext4_inode_info *EXT4_I(struct inode *inode) return container_of(inode, struct ext4_inode_info, vfs_inode); } +static inline int ext4_writepages_down_read(struct super_block *sb) +{ + percpu_down_read(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_read(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_read(&EXT4_SB(sb)->s_writepages_rwsem); +} + +static inline int ext4_writepages_down_write(struct super_block *sb) +{ + percpu_down_write(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_write(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_write(&EXT4_SB(sb)->s_writepages_rwsem); +} + static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) { return ino == EXT4_ROOT_INO || diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index f26d9b88d48d..9c438215cf56 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2705,13 +2705,14 @@ static int ext4_writepages(struct address_space *mapping, struct blk_plug plug; bool give_up_on_write = false; unsigned long retry_warn_ddl = 0; + int alloc_ctx; #define RETRY_WARN_TIMEOUT (30 * HZ) if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); /* @@ -2932,7 +2933,7 @@ static int ext4_writepages(struct address_space *mapping, out_writepages: trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -2943,17 +2944,18 @@ static int ext4_dax_writepages(struct address_space *mapping, long nr_to_write = wbc->nr_to_write; struct inode *inode = mapping->host; struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb); + int alloc_ctx; if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); ret = dax_writeback_mapping_range(mapping, sbi->s_daxdev, wbc); trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -6065,7 +6067,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) journal_t *journal; handle_t *handle; int err; - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + int alloc_ctx; /* * We have to be very careful here: changing a data block's @@ -6103,7 +6105,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) } } - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); jbd2_journal_lock_updates(journal); /* @@ -6120,7 +6122,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) err = jbd2_journal_flush(journal); if (err < 0) { jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return err; } ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA); @@ -6128,7 +6130,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) ext4_set_aops(inode); jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); if (val) up_write(&EXT4_I(inode)->i_mmap_sem); diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index 04320715d61f..274f7ab37fff 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -409,7 +409,6 @@ static int free_ext_block(handle_t *handle, struct inode *inode) int ext4_ext_migrate(struct inode *inode) { - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); handle_t *handle; int retval = 0, i; __le32 *i_data; @@ -419,6 +418,7 @@ int ext4_ext_migrate(struct inode *inode) unsigned long max_entries; __u32 goal, tmp_csum_seed; uid_t owner[2]; + int alloc_ctx; /* * If the filesystem does not support extents, or the inode @@ -434,7 +434,7 @@ int ext4_ext_migrate(struct inode *inode) */ return retval; - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); /* * Worst case we can touch the allocation bitmaps and a block @@ -586,7 +586,7 @@ int ext4_ext_migrate(struct inode *inode) unlock_new_inode(tmp_inode); iput(tmp_inode); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return retval; } @@ -605,6 +605,7 @@ int ext4_ind_migrate(struct inode *inode) ext4_fsblk_t blk; handle_t *handle; int ret, ret2 = 0; + int alloc_ctx; if (!ext4_has_feature_extents(inode->i_sb) || (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) @@ -621,7 +622,7 @@ int ext4_ind_migrate(struct inode *inode) if (test_opt(inode->i_sb, DELALLOC)) ext4_alloc_da_blocks(inode); - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1); if (IS_ERR(handle)) { @@ -665,6 +666,6 @@ int ext4_ind_migrate(struct inode *inode) ext4_journal_stop(handle); up_write(&EXT4_I(inode)->i_data_sem); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return ret; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ac032f517a60..2bdb16df5c23 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5939,6 +5939,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) ext4_group_t g; unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO; int err = 0; + int alloc_ctx; #ifdef CONFIG_QUOTA int i, j; char *to_free[EXT4_MAXQUOTAS]; @@ -5991,13 +5992,13 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) * here s_writepages_rwsem to avoid race between writepages ops and * remount. */ - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); if (!parse_options(data, sb, NULL, &journal_ioprio, 1)) { err = -EINVAL; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); goto restore_opts; } - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^ test_opt(sb, JOURNAL_CHECKSUM)) { @@ -6215,7 +6216,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) return 0; restore_opts: - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); sb->s_flags = old_sb_flags; sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_mount_opt2 = old_opts.s_mount_opt2; @@ -6224,7 +6225,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sbi->s_commit_interval = old_opts.s_commit_interval; sbi->s_min_batch_time = old_opts.s_min_batch_time; sbi->s_max_batch_time = old_opts.s_max_batch_time; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) ext4_release_system_zone(sb); -- 2.31.1

2 1

[PATCH OLK-5.10] ext4: avoid deadlock in fs reclaim with page writeback
by Baokun Li 11 Jun '24

11 Jun '24

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-v6.4-rc2 commit 00d873c17e29cc32d90ca852b82685f1673acaa5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SYGK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with switching of journalled data flag or inode format. This lock can however cause a deadlock like: CPU0 CPU1 ext4_writepages() percpu_down_read(sbi->s_writepages_rwsem); ext4_change_inode_journal_flag() percpu_down_write(sbi->s_writepages_rwsem); - blocks, all readers block from now on ext4_do_writepages() ext4_init_io_end() kmem_cache_zalloc(io_end_cachep, GFP_KERNEL) fs_reclaim frees dentry... dentry_unlink_inode() iput() - last ref => iput_final() - inode dirty => write_inode_now()... ext4_writepages() tries to acquire sbi->s_writepages_rwsem and blocks forever Make sure we cannot recurse into filesystem reclaim from writeback code to avoid the deadlock. Reported-by: syzbot+6898da502aef574c5f8a(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/all/0000000000004c66b405fa108e27@google.com Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal mode and ext4_writepages") CC: stable(a)vger.kernel.org Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230504124723.20205-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Conflicts: fs/ext4/ext4.h fs/ext4/super.c fs/ext4/inode.c [Because we have merged in b66c23ec7fcf ("ext4: fix race between writepages and remount") and we don't have ext4_do_writepages() yet and i_mmap_sem hasn't switched to invalidate_lock yet.] Signed-off-by: Baokun Li <libaokun1(a)huawei.com> --- fs/ext4/ext4.h | 25 +++++++++++++++++++++++++ fs/ext4/inode.c | 18 ++++++++++-------- fs/ext4/migrate.c | 11 ++++++----- fs/ext4/super.c | 12 +++++++----- 4 files changed, 48 insertions(+), 18 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index b701f7ac7f66..a9530484147d 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -37,6 +37,7 @@ #include <linux/falloc.h> #include <linux/percpu-rwsem.h> #include <linux/fiemap.h> +#include <linux/sched/mm.h> #ifdef __KERNEL__ #include <linux/compat.h> #endif @@ -1701,6 +1702,30 @@ static inline struct ext4_inode_info *EXT4_I(struct inode *inode) return container_of(inode, struct ext4_inode_info, vfs_inode); } +static inline int ext4_writepages_down_read(struct super_block *sb) +{ + percpu_down_read(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_read(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_read(&EXT4_SB(sb)->s_writepages_rwsem); +} + +static inline int ext4_writepages_down_write(struct super_block *sb) +{ + percpu_down_write(&EXT4_SB(sb)->s_writepages_rwsem); + return memalloc_nofs_save(); +} + +static inline void ext4_writepages_up_write(struct super_block *sb, int ctx) +{ + memalloc_nofs_restore(ctx); + percpu_up_write(&EXT4_SB(sb)->s_writepages_rwsem); +} + static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) { return ino == EXT4_ROOT_INO || diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 412af3c5fde4..0f8d23aa2838 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2709,13 +2709,14 @@ static int ext4_writepages(struct address_space *mapping, struct blk_plug plug; bool give_up_on_write = false; unsigned long retry_warn_ddl = 0; + int alloc_ctx; #define RETRY_WARN_TIMEOUT (30 * HZ) if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); /* @@ -2936,7 +2937,7 @@ static int ext4_writepages(struct address_space *mapping, out_writepages: trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -2947,17 +2948,18 @@ static int ext4_dax_writepages(struct address_space *mapping, long nr_to_write = wbc->nr_to_write; struct inode *inode = mapping->host; struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb); + int alloc_ctx; if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) return -EIO; - percpu_down_read(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_read(inode->i_sb); trace_ext4_writepages(inode, wbc); ret = dax_writeback_mapping_range(mapping, sbi->s_daxdev, wbc); trace_ext4_writepages_result(inode, wbc, ret, nr_to_write - wbc->nr_to_write); - percpu_up_read(&sbi->s_writepages_rwsem); + ext4_writepages_up_read(inode->i_sb, alloc_ctx); return ret; } @@ -6107,7 +6109,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) journal_t *journal; handle_t *handle; int err; - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); + int alloc_ctx; /* * We have to be very careful here: changing a data block's @@ -6145,7 +6147,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) } } - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); jbd2_journal_lock_updates(journal); /* @@ -6162,7 +6164,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) err = jbd2_journal_flush(journal); if (err < 0) { jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return err; } ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA); @@ -6170,7 +6172,7 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val) ext4_set_aops(inode); jbd2_journal_unlock_updates(journal); - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); if (val) up_write(&EXT4_I(inode)->i_mmap_sem); diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index b0ea646454ac..50e449ec62bf 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -409,7 +409,6 @@ static int free_ext_block(handle_t *handle, struct inode *inode) int ext4_ext_migrate(struct inode *inode) { - struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); handle_t *handle; int retval = 0, i; __le32 *i_data; @@ -419,6 +418,7 @@ int ext4_ext_migrate(struct inode *inode) unsigned long max_entries; __u32 goal, tmp_csum_seed; uid_t owner[2]; + int alloc_ctx; /* * If the filesystem does not support extents, or the inode @@ -435,7 +435,7 @@ int ext4_ext_migrate(struct inode *inode) */ return retval; - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); /* * Worst case we can touch the allocation bitmaps and a block @@ -587,7 +587,7 @@ int ext4_ext_migrate(struct inode *inode) unlock_new_inode(tmp_inode); iput(tmp_inode); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return retval; } @@ -606,6 +606,7 @@ int ext4_ind_migrate(struct inode *inode) ext4_fsblk_t blk; handle_t *handle; int ret, ret2 = 0; + int alloc_ctx; if (!ext4_has_feature_extents(inode->i_sb) || (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) @@ -622,7 +623,7 @@ int ext4_ind_migrate(struct inode *inode) if (test_opt(inode->i_sb, DELALLOC)) ext4_alloc_da_blocks(inode); - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(inode->i_sb); handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1); if (IS_ERR(handle)) { @@ -666,6 +667,6 @@ int ext4_ind_migrate(struct inode *inode) ext4_journal_stop(handle); up_write(&EXT4_I(inode)->i_data_sem); out_unlock: - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(inode->i_sb, alloc_ctx); return ret; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 90f886184fc6..bfa592bfd298 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5961,6 +5961,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) ext4_group_t g; unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO; int err = 0; + int alloc_ctx; #ifdef CONFIG_QUOTA int enable_quota = 0; int i, j; @@ -6014,13 +6015,13 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) * here s_writepages_rwsem to avoid race between writepages ops and * remount. */ - percpu_down_write(&sbi->s_writepages_rwsem); + alloc_ctx = ext4_writepages_down_write(sb); if (!parse_options(data, sb, NULL, &journal_ioprio, 1)) { err = -EINVAL; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); goto restore_opts; } - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^ test_opt(sb, JOURNAL_CHECKSUM)) { @@ -6247,7 +6248,8 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) if ((sb->s_flags & SB_RDONLY) && !(old_sb_flags & SB_RDONLY) && sb_any_quota_suspended(sb)) dquot_resume(sb, -1); - percpu_down_write(&sbi->s_writepages_rwsem); + + alloc_ctx = ext4_writepages_down_write(sb); sb->s_flags = old_sb_flags; sbi->s_mount_opt = old_opts.s_mount_opt; sbi->s_mount_opt2 = old_opts.s_mount_opt2; @@ -6256,7 +6258,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) sbi->s_commit_interval = old_opts.s_commit_interval; sbi->s_min_batch_time = old_opts.s_min_batch_time; sbi->s_max_batch_time = old_opts.s_max_batch_time; - percpu_up_write(&sbi->s_writepages_rwsem); + ext4_writepages_up_write(sb, alloc_ctx); if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) ext4_release_system_zone(sb); -- 2.31.1

2 1

[PATCH OLK-5.10] phonet: fix rtm_phonet_notify() skb allocation
by Wang Wensheng 11 Jun '24

11 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.9 commit d8cac8568618dcb8a51af3db1103e8d4cc4aeea7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4L2 CVE: CVE-2024-36946 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- fill_route() stores three components in the skb: - struct rtmsg - RTA_DST (u8) - RTA_OIF (u32) Therefore, rtm_phonet_notify() should use NLMSG_ALIGN(sizeof(struct rtmsg)) + nla_total_size(1) + nla_total_size(4) Fixes: f062f41d0657 ("Phonet: routing table Netlink interface") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Rémi Denis-Courmont <courmisch(a)gmail.com> Link: https://lore.kernel.org/r/20240502161700.1804476-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- net/phonet/pn_netlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c index 59aebe296890..dd4c7e9a634f 100644 --- a/net/phonet/pn_netlink.c +++ b/net/phonet/pn_netlink.c @@ -193,7 +193,7 @@ void rtm_phonet_notify(int event, struct net_device *dev, u8 dst) struct sk_buff *skb; int err = -ENOBUFS; - skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct ifaddrmsg)) + + skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct rtmsg)) + nla_total_size(1) + nla_total_size(4), GFP_KERNEL); if (skb == NULL) goto errout; -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS] i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc
by Li Huafei 11 Jun '24

11 Jun '24

From: Norbert Zulinski <norbertx.zulinski(a)intel.com> stable inclusion from stable-v5.10.85 commit e5b7fb2198abc50058f1a29c395b004f76ab1c83 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S22G CVE: CVE-2021-47501 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 23ec111bf3549aae37140330c31a16abfc172421 upstream. When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40e_dbg_dump_desc. Added a check to i40e_dbg_dump_desc that checks if VSI type is correct for dumping RX/TX descriptors. Fixes: 02e9c290814c ("i40e: debugfs interface") Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch(a)intel.com> Signed-off-by: Norbert Zulinski <norbertx.zulinski(a)intel.com> Signed-off-by: Mateusz Palczewski <mateusz.palczewski(a)intel.com> Tested-by: Gurucharan G <gurucharanx.g(a)intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/net/ethernet/intel/i40e/i40e_debugfs.c [ Conflicts caused by not merging 44ea803e2fa7 ("i40e: introduce new dump desc XDP command"). ] Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 56b911a5dd8be..3e6c6585012f9 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -506,6 +506,14 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid); return; } + if (vsi->type != I40E_VSI_MAIN && + vsi->type != I40E_VSI_FDIR && + vsi->type != I40E_VSI_VMDQ2) { + dev_info(&pf->pdev->dev, + "vsi %d type %d descriptor rings not available\n", + vsi_seid, vsi->type); + return; + } if (ring_id >= vsi->num_queue_pairs || ring_id < 0) { dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id); return; -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] hugetlbfs: fix hugetlbfs_statfs() locking
by Yifan Qiao 11 Jun '24

11 Jun '24

From: Mina Almasry <almasrymina(a)google.com> mainline inclusion from mainline-v5.19-rc1 commit 4b25f030ae69ba710eff587cabb4c57cb7e7a8a1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SY02 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- After commit db71ef79b59b ("hugetlb: make free_huge_page irq safe"), the subpool lock should be locked with spin_lock_irq() and all call sites was modified as such, except for the ones in hugetlbfs_statfs(). Link: https://lkml.kernel.org/r/20220429202207.3045-1-almasrymina@google.com Fixes: db71ef79b59b ("hugetlb: make free_huge_page irq safe") Signed-off-by: Mina Almasry <almasrymina(a)google.com> Reviewed-by: Mike Kravetz <mike.kravetz(a)oracle.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Yifan Qiao <qiaoyifan4(a)huawei.com> --- fs/hugetlbfs/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 8274f096e89f..73a008dfe322 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1122,12 +1122,12 @@ static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf) if (sbinfo->spool) { long free_pages; - spin_lock(&sbinfo->spool->lock); + spin_lock_irq(&sbinfo->spool->lock); buf->f_blocks = sbinfo->spool->max_hpages; free_pages = sbinfo->spool->max_hpages - sbinfo->spool->used_hpages; buf->f_bavail = buf->f_bfree = free_pages; - spin_unlock(&sbinfo->spool->lock); + spin_unlock_irq(&sbinfo->spool->lock); buf->f_files = sbinfo->max_inodes; buf->f_ffree = sbinfo->free_inodes; } -- 2.39.2

2 1

[PATCH OLK-5.10] hugetlbfs: fix hugetlbfs_statfs() locking
by Yifan Qiao 11 Jun '24

11 Jun '24

From: Mina Almasry <almasrymina(a)google.com> mainline inclusion from mainline-v5.19-rc1 commit 4b25f030ae69ba710eff587cabb4c57cb7e7a8a1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9SY02 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- After commit db71ef79b59b ("hugetlb: make free_huge_page irq safe"), the subpool lock should be locked with spin_lock_irq() and all call sites was modified as such, except for the ones in hugetlbfs_statfs(). Link: https://lkml.kernel.org/r/20220429202207.3045-1-almasrymina@google.com Fixes: db71ef79b59b ("hugetlb: make free_huge_page irq safe") Signed-off-by: Mina Almasry <almasrymina(a)google.com> Reviewed-by: Mike Kravetz <mike.kravetz(a)oracle.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Yifan Qiao <qiaoyifan4(a)huawei.com> --- fs/hugetlbfs/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 508c20ef9061..1203178914cc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1133,12 +1133,12 @@ static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf) if (sbinfo->spool) { long free_pages; - spin_lock(&sbinfo->spool->lock); + spin_lock_irq(&sbinfo->spool->lock); buf->f_blocks = sbinfo->spool->max_hpages; free_pages = sbinfo->spool->max_hpages - sbinfo->spool->used_hpages; buf->f_bavail = buf->f_bfree = free_pages; - spin_unlock(&sbinfo->spool->lock); + spin_unlock_irq(&sbinfo->spool->lock); buf->f_files = sbinfo->max_inodes; buf->f_ffree = sbinfo->free_inodes; } -- 2.39.2

2 1

[PATCH OLK-6.6] gpiolib: cdev: fix uninitialised kfifo
by Luo Gengkun 11 Jun '24

11 Jun '24

From: Kent Gibson <warthog618(a)gmail.com> mainline inclusion from mainline-v6.9 commit ee0166b637a5e376118e9659e5b4148080f1d27e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U7YV CVE: CVE-2024-36898 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace. Initialise the kfifo in the case where the software debounce is already active. Fixes: 65cff7046406 ("gpiolib: cdev: support setting debounce") Signed-off-by: Kent Gibson <warthog618(a)gmail.com> Link: https://lore.kernel.org/r/20240510065342.36191-1-warthog618@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Conflicts: drivers/gpio/gpiolib-cdev.c [fix context conflict] Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- drivers/gpio/gpiolib-cdev.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 84125e55de10..29b671c92621 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -1121,6 +1121,8 @@ static int edge_detector_update(struct line *line, struct gpio_v2_line_config *lc, unsigned int line_idx, u64 edflags) { + u64 eflags; + int ret; u64 active_edflags = READ_ONCE(line->edflags); unsigned int debounce_period_us = gpio_v2_line_config_debounce_period(lc, line_idx); @@ -1132,6 +1134,18 @@ static int edge_detector_update(struct line *line, /* sw debounced and still will be...*/ if (debounce_period_us && READ_ONCE(line->sw_debounced)) { WRITE_ONCE(line->desc->debounce_period_us, debounce_period_us); + /* + * ensure event fifo is initialised if edge detection + * is now enabled. + */ + eflags = edflags & GPIO_V2_LINE_EDGE_FLAGS; + if (eflags && !kfifo_initialized(&line->req->events)) { + ret = kfifo_alloc(&line->req->events, + line->req->event_buffer_size, + GFP_KERNEL); + if (ret) + return ret; + } return 0; } -- 2.34.1

2 1

[PATCH OLK-5.10] xfs: fix interval filtering in multi-step fsmap queries
by Zizhi Wo 11 Jun '24

11 Jun '24

From: "Darrick J. Wong" <djwong(a)kernel.org> mainline inclusion from mainline-v6.5-rc1 commit 63ef7a35912dd743cabd65d5bb95891625c0dd46 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA470G Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- I noticed a bug in ranged GETFSMAP queries: EXT: DEV BLOCK-RANGE OWNER FILE-OFFSET AG AG-OFFSET TOTAL 0: 8:80 [0..7]: static fs metadata 0 (0..7) 8 <snip> 9: 8:80 [192..223]: 137 0..31 0 (192..223) 32 That's not right -- we asked what block maps block 208, and we should've received a mapping for inode 137 offset 16. Instead, we get nothing. The root cause of this problem is a mis-interaction between the fsmap code and how btree ranged queries work. xfs_btree_query_range returns any btree record that overlaps with the query interval, even if the record starts before or ends after the interval. Similarly, GETFSMAP is supposed to return a recordset containing all records that overlap the range queried. However, it's possible that the recordset is larger than the buffer that the caller provided to convey mappings to userspace. In /that/ case, userspace is supposed to copy the last record returned to fmh_keys[0] and call GETFSMAP again. In this case, we do not want to return mappings that we have already supplied to the caller. The call to xfs_btree_query_range is the same, but now we ignore any records that start before fmh_keys[0]. Unfortunately, we didn't implement the filtering predicate correctly. The predicate should only be called when we're calling back for more records. Accomplish this by setting info->low.rm_blockcount to a nonzero value and ensuring that it is cleared as necessary. As a result, we no longer want to adjust dkeys[0] in the main setup function because that's confusing. This patch doesn't touch the logdev/rtbitmap backends because they have bigger problems that will be addressed by subsequent patches. Found via xfs/556 with parent pointers enabled. Fixes: e89c041338ed ("xfs: implement the GETFSMAP ioctl") Signed-off-by: Darrick J. Wong <djwong(a)kernel.org> Reviewed-by: Dave Chinner <dchinner(a)redhat.com> Conflicts: fs/xfs/xfs_fsmap.c [Because there are many conflicting patches that need to be adapted, the in-place context adaptation is performed directly.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/xfs/xfs_fsmap.c | 67 +++++++++++++++++++++++++++++++++------------- 1 file changed, 48 insertions(+), 19 deletions(-) diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c index 595450a99ae2..deaed94011ad 100644 --- a/fs/xfs/xfs_fsmap.c +++ b/fs/xfs/xfs_fsmap.c @@ -161,7 +161,14 @@ struct xfs_getfsmap_info { u64 missing_owner; /* owner of holes */ u32 dev; /* device id */ xfs_agnumber_t agno; /* AG number, if applicable */ - struct xfs_rmap_irec low; /* low rmap key */ + /* + * Low rmap key for the query. If low.rm_blockcount is nonzero, this + * is the second (or later) call to retrieve the recordset in pieces. + * xfs_getfsmap_rec_before_start will compare all records retrieved + * by the rmapbt query to filter out any records that start before + * the last record. + */ + struct xfs_rmap_irec low; struct xfs_rmap_irec high; /* high rmap key */ bool last; /* last extent? */ }; @@ -237,6 +244,17 @@ xfs_getfsmap_format( xfs_fsmap_from_internal(rec, xfm); } +static inline bool +xfs_getfsmap_rec_before_start( + struct xfs_getfsmap_info *info, + const struct xfs_rmap_irec *rec, + xfs_daddr_t rec_daddr) +{ + if (info->low.rm_blockcount) + return xfs_rmap_compare(rec, &info->low) < 0; + return false; +} + /* * Format a reverse mapping for getfsmap, having translated rm_startblock * into the appropriate daddr units. @@ -260,7 +278,7 @@ xfs_getfsmap_helper( * Filter out records that start before our startpoint, if the * caller requested that. */ - if (xfs_rmap_compare(rec, &info->low) < 0) { + if (xfs_getfsmap_rec_before_start(info, rec, rec_daddr)) { rec_daddr += XFS_FSB_TO_BB(mp, rec->rm_blockcount); if (info->next_daddr < rec_daddr) info->next_daddr = rec_daddr; @@ -604,9 +622,27 @@ __xfs_getfsmap_datadev( error = xfs_fsmap_owner_to_rmap(&info->low, &keys[0]); if (error) return error; - info->low.rm_blockcount = 0; + info->low.rm_blockcount = XFS_BB_TO_FSBT(mp, keys[0].fmr_length); xfs_getfsmap_set_irec_flags(&info->low, &keys[0]); + /* Adjust the low key if we are continuing from where we left off. */ + if (info->low.rm_blockcount == 0) { + /* empty */ + } else if (XFS_RMAP_NON_INODE_OWNER(info->low.rm_owner) || + (info->low.rm_flags & (XFS_RMAP_ATTR_FORK | + XFS_RMAP_BMBT_BLOCK | + XFS_RMAP_UNWRITTEN))) { + info->low.rm_startblock += info->low.rm_blockcount; + info->low.rm_owner = 0; + info->low.rm_offset = 0; + + start_fsb += info->low.rm_blockcount; + if (XFS_FSB_TO_DADDR(mp, start_fsb) >= eofs) + return 0; + } else { + info->low.rm_offset += info->low.rm_blockcount; + } + info->high.rm_startblock = -1U; info->high.rm_owner = ULLONG_MAX; info->high.rm_offset = ULLONG_MAX; @@ -657,12 +693,8 @@ __xfs_getfsmap_datadev( * Set the AG low key to the start of the AG prior to * moving on to the next AG. */ - if (info->agno == start_ag) { - info->low.rm_startblock = 0; - info->low.rm_owner = 0; - info->low.rm_offset = 0; - info->low.rm_flags = 0; - } + if (info->agno == start_ag) + memset(&info->low, 0, sizeof(info->low)); } /* Report any gap at the end of the AG */ @@ -886,21 +918,17 @@ xfs_getfsmap( * blocks could be mapped to several other files/offsets. * According to rmapbt record ordering, the minimal next * possible record for the block range is the next starting - * offset in the same inode. Therefore, bump the file offset to - * continue the search appropriately. For all other low key - * mapping types (attr blocks, metadata), bump the physical - * offset as there can be no other mapping for the same physical - * block range. + * offset in the same inode. Therefore, each fsmap backend bumps + * the file offset to continue the search appropriately. For + * all other low key mapping types (attr blocks, metadata), each + * fsmap backend bumps the physical offset as there can be no + * other mapping for the same physical block range. */ dkeys[0] = head->fmh_keys[0]; if (dkeys[0].fmr_flags & (FMR_OF_SPECIAL_OWNER | FMR_OF_EXTENT_MAP)) { - dkeys[0].fmr_physical += dkeys[0].fmr_length; - dkeys[0].fmr_owner = 0; if (dkeys[0].fmr_offset) return -EINVAL; - } else - dkeys[0].fmr_offset += dkeys[0].fmr_length; - dkeys[0].fmr_length = 0; + } memset(&dkeys[1], 0xFF, sizeof(struct xfs_fsmap)); if (!xfs_getfsmap_check_keys(dkeys, &head->fmh_keys[1])) @@ -948,6 +976,7 @@ xfs_getfsmap( info.dev = handlers[i].dev; info.last = false; info.agno = NULLAGNUMBER; + info.low.rm_blockcount = 0; error = handlers[i].fn(tp, dkeys, &info); if (error) break; -- 2.39.2

2 1

[PATCH OLK-6.6] blk-iocost: do not WARN if iocg was already offlined
by Li Nan 11 Jun '24

11 Jun '24

mainline inclusion from mainline-v6.9-rc5 commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UABH CVE: CVE-2024-36908 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk. Signed-off-by: Li Nan <linan122(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 6a3e8a21c0fc..3ac79f0c098f 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1439,8 +1439,11 @@ static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay, lockdep_assert_held(&iocg->ioc->lock); lockdep_assert_held(&iocg->waitq.lock); - /* make sure that nobody messed with @iocg */ - WARN_ON_ONCE(list_empty(&iocg->active_list)); + /* + * make sure that nobody messed with @iocg. Check iocg->pd.online + * to avoid warn when removing blkcg or disk. + */ + WARN_ON_ONCE(list_empty(&iocg->active_list) && iocg->pd.online); WARN_ON_ONCE(iocg->inuse > 1); iocg->abs_vdebt -= min(abs_vpay, iocg->abs_vdebt); -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] gpiolib: cdev: Fix use after free in lineinfo_changed_notify
by Wupeng Ma 11 Jun '24

11 Jun '24

From: Zhongqiu Han <quic_zhonhan(a)quicinc.com> stable inclusion from stable-v6.6.31 commit 95ca7c90eaf5ea8a8460536535101e3e81160e2a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UG5Z CVE: CVE-2024-36899 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 02f6b0e1ec7e0e7d059dddc893645816552039da ] The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines. Here is the typical stack when issue happened: [free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule() [use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway. To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain. Fixes: 51c1064e82e7 ("gpiolib: add new ioctl() for monitoring changes in line info") Signed-off-by: Zhongqiu Han <quic_zhonhan(a)quicinc.com> Link: https://lore.kernel.org/r/20240505141156.2944912-1-quic_zhonhan@quicinc.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/gpio/gpiolib-cdev.c [Ma Wupeng: context conflicts] Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/gpio/gpiolib-cdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 0f98a07efcd6..62666174a2c9 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -2328,9 +2328,9 @@ static int gpio_chrdev_release(struct inode *inode, struct file *file) struct gpio_chardev_data *cdev = file->private_data; struct gpio_device *gdev = cdev->gdev; - bitmap_free(cdev->watched_lines); blocking_notifier_chain_unregister(&gdev->notifier, &cdev->lineinfo_changed_nb); + bitmap_free(cdev->watched_lines); put_device(&gdev->dev); kfree(cdev); -- 2.25.1

2 1

[PATCH OLK-5.10] cvm_tsi: Fix security issue for Confidential cVM TSI
by Shengjie Li 11 Jun '24

11 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA45I1 -------------------------------- Fix security issue for Confidential cVM TSI: 1. Init TSI driver when config cvm_guest. 2. Modify the token structure to reduce the number of exposed variables. 3. Add a lock for obtaining the remote attestation report. Fixes: 31071f4b2a0b ("cvm_tsi: add cvm tsi interface") Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/asm/cvm_smc.h | 22 +++---- arch/arm64/include/uapi/asm/cvm_tsi.h | 11 ++-- arch/arm64/kernel/cvm_tsi.c | 89 ++++++++++++++------------- 3 files changed, 64 insertions(+), 58 deletions(-) diff --git a/arch/arm64/include/asm/cvm_smc.h b/arch/arm64/include/asm/cvm_smc.h index c4d56333e3..91688bc169 100644 --- a/arch/arm64/include/asm/cvm_smc.h +++ b/arch/arm64/include/asm/cvm_smc.h @@ -124,30 +124,30 @@ static inline unsigned long tsi_measurement_read(struct cvm_measurement *cvm_mea return res.a0; } -static inline unsigned long tsi_attestation_token_init(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_init(unsigned char *challenge) { struct arm_smccc_res res; - unsigned char *challenge; + unsigned char *buf; - challenge = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); - if (!challenge) + buf = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); + if (!buf) return -ENOMEM; - memcpy(challenge, attest_cmd->challenge, CHALLENGE_SIZE); + memcpy(buf, challenge, CHALLENGE_SIZE); - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(challenge), &res); - kfree(challenge); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(buf), &res); + kfree(buf); return res.a0; } -static inline unsigned long tsi_attestation_token_continue(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_continue(struct cvm_token_granule *token_granule) { struct arm_smccc_res res; - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(attest_cmd->granule_ipa), - attest_cmd->offset, attest_cmd->size, &res); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(token_granule->ipa), + token_granule->offset, token_granule->size, &res); - attest_cmd->num_wr_bytes = res.a1; + token_granule->num_wr_bytes = res.a1; return res.a0; } diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 43e17a0da0..1ed4386db2 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -55,10 +55,13 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ - unsigned long token_size; /* return: challenge value */ - void *granule_head; - void *granule_ipa; /* IPA of the Granule to which the token will be written */ - unsigned long granule_count; + unsigned long token_size; /* return: token size */ +}; + +struct cvm_token_granule { + void *head; + void *ipa; /* IPA of the Granule to which the token will be written */ + unsigned long count; unsigned long offset; /* Offset within Granule to start of buffer in bytes */ unsigned long size; /* Size of buffer in bytes */ unsigned long num_wr_bytes; /* Number of bytes written to buffer */ diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index b48e5b17f4..252fe5352a 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -4,6 +4,7 @@ #include <linux/slab.h> #include <linux/miscdevice.h> #include <linux/preempt.h> +#include <asm/cvm_guest.h> #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> @@ -16,20 +17,19 @@ struct attestation_token { static struct attestation_token token; +static DEFINE_SPINLOCK(lock); + static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -static int tmm_tsi_release(struct inode *inode, struct file *file); static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, size_t size, loff_t *offset); static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg); -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token); +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg); static int tmm_get_device_cert(struct cca_device_cert __user *arg); static const struct file_operations tmm_tsi_fops = { .owner = THIS_MODULE, .read = tmm_token_read, - .release = tmm_tsi_release, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -44,6 +44,9 @@ static int __init tmm_tsi_init(void) unsigned long ver; int ret; + if (!is_cvm_world()) + return -EIO; + ver = tsi_get_version(); if (ver == SMCCC_RET_NOT_SUPPORTED) { pr_err("tmm_tsi: SMC return not supported!\n"); @@ -56,6 +59,11 @@ static int __init tmm_tsi_init(void) return ret; } + /* Allocate a large memory */ + token.buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); + if (!token.buf) + return -ENOMEM; + pr_warn("tmm_tsi: module loaded (version %lu.%lu).\n", TSI_ABI_VERSION_GET_MAJOR(ver), TSI_ABI_VERSION_GET_MINOR(ver)); @@ -65,8 +73,10 @@ static int __init tmm_tsi_init(void) static void __exit tmm_tsi_exit(void) { - if (token.buf != NULL) + if (token.buf != NULL) { + memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); kfree(token.buf); + } misc_deregister(&ioctl_dev); pr_warn("tmm_tsi: module unloaded.\n"); } @@ -80,7 +90,7 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg ret = tmm_get_tsi_version((struct cvm_tsi_version *)arg); break; case TMM_GET_ATTESTATION_TOKEN: - ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg, &token); + ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg); break; case TMM_GET_DEVICE_CERT: ret = tmm_get_device_cert((struct cca_device_cert *)arg); @@ -99,28 +109,25 @@ static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, int ret; int to_copy; - if (*offset >= token.size) + spin_lock(&lock); + if (*offset >= token.size) { + spin_unlock(&lock); return 0; + } to_copy = min((int)size, (int)(token.size - *offset)); ret = copy_to_user(user_buffer, token.buf + *offset, to_copy); if (ret) { pr_err("tmm_tsi: copy token to user failed (%d)!\n", ret); + spin_unlock(&lock); return -1; } *offset += to_copy; + spin_unlock(&lock); return to_copy; } -static int tmm_tsi_release(struct inode *inode, struct file *file) -{ - if (token.buf != NULL) { - memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); - kfree(token.buf); - } - return 0; -} static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { @@ -141,65 +148,61 @@ static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) return 0; } -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token) +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) { unsigned long ret; - struct cvm_attestation_cmd cmd = {0}; + struct cvm_token_granule token_granule = {0}; + unsigned char challenge[CHALLENGE_SIZE]; - ret = copy_from_user(&(cmd.challenge), &(arg->challenge), sizeof(cmd.challenge)); + ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); return -EFAULT; } - /* Allocate a large memory */ - attest_token->buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); - if (!attest_token->buf) - return -ENOMEM; - cmd.granule_head = attest_token->buf; - cmd.granule_ipa = cmd.granule_head; + spin_lock(&lock); + token_granule.head = token.buf; + token_granule.ipa = token_granule.head; - /* preempt_disable(); */ - - ret = tsi_attestation_token_init(&cmd); + ret = tsi_attestation_token_init(challenge); if (ret) { pr_err("tmm_tsi: tsi call tsi_attestation_token_init failed (%lu)!\n", ret); + spin_unlock(&lock); return -EIO; } do { /* Retrieve one Granule of data per loop iteration */ - cmd.granule_ipa = cmd.granule_head + - (unsigned long)(cmd.granule_count * GRANULE_SIZE); - cmd.offset = 0; + token_granule.ipa = token_granule.head + + (unsigned long)(token_granule.count * GRANULE_SIZE); + token_granule.offset = 0; do { /* Retrieve sub-Granule chunk of data per loop iteration */ - cmd.size = GRANULE_SIZE - cmd.offset; - ret = tsi_attestation_token_continue(&cmd); - cmd.offset += cmd.num_wr_bytes; - } while (ret == TSI_INCOMPLETE && cmd.offset < GRANULE_SIZE); + token_granule.size = GRANULE_SIZE - token_granule.offset; + ret = tsi_attestation_token_continue(&token_granule); + token_granule.offset += token_granule.num_wr_bytes; + } while (ret == TSI_INCOMPLETE && token_granule.offset < GRANULE_SIZE); - cmd.granule_count += 1; - if (cmd.granule_count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { + token_granule.count += 1; + if (token_granule.count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { pr_err("tmm_tsi: macro MAX_TOKEN_GRANULE_PAGE (%d) is too small!\n", MAX_TOKEN_GRANULE_PAGE); + spin_unlock(&lock); return -ENOMEM; } } while (ret == TSI_INCOMPLETE); - /* preempt_enable(); */ - /* Send to user space the total size of the token */ - cmd.granule_count = cmd.granule_count - 1; - cmd.token_size = (unsigned long)(GRANULE_SIZE * cmd.granule_count) + cmd.offset; - attest_token->size = cmd.token_size; + token_granule.count = token_granule.count - 1; + token.size = (unsigned long)(GRANULE_SIZE * token_granule.count) + token_granule.offset; - ret = copy_to_user(&(arg->token_size), &(cmd.token_size), sizeof(cmd.token_size)); + ret = copy_to_user(&(arg->token_size), &(token.size), sizeof(token.size)); if (ret) { pr_err("tmm_tsi: copy data to user failed (%lu)!\n", ret); + spin_unlock(&lock); return -EFAULT; } + spin_unlock(&lock); return 0; } -- 2.37.2.windows.2

2 1

[PATCH openEuler-1.0-LTS] nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
by Zheng Zucheng 11 Jun '24

11 Jun '24

From: Ryosuke Yasuoka <ryasuoka(a)redhat.com> stable inclusion from stable-v6.6.26 commit a946ebee45b09294c8b0b0e77410b763c4d2817a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG8F CVE: CVE-2024-35915 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d24b03535e5eb82e025219c2f632b485409c898f ] syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes. Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation") Reported-and-tested-by: syzbot+7ea9413ea6749baf5574(a)syzkaller.appspotmail.com Reported-and-tested-by: syzbot+29b5ca705d2e0f4a44d2(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=7ea9413ea6749baf5574 [1] Closes: https://syzkaller.appspot.com/bug?extid=29b5ca705d2e0f4a44d2 [2] Signed-off-by: Ryosuke Yasuoka <ryasuoka(a)redhat.com> Reviewed-by: Jeremy Cline <jeremy(a)jcline.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- net/nfc/nci/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 7148bc0af030..f393aae80598 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -1507,6 +1507,11 @@ static void nci_rx_work(struct work_struct *work) nfc_send_to_raw_sock(ndev->nfc_dev, skb, RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); + if (!nci_plen(skb->data)) { + kfree_skb(skb); + break; + } + /* Process frame */ switch (nci_mt(skb->data)) { case NCI_MT_RSP_PKT: -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net/mlx5e: Fix use-after-free of encap entry in neigh update handler
by Zhang Changzhong 11 Jun '24

11 Jun '24

From: Vlad Buslov <vladbu(a)nvidia.com> mainline inclusion from mainline-v5.13-rc7 commit fb1a3132ee1ac968316e45d21a48703a6db0b6c3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4FV CVE: CVE-2021-47247 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry insertion/deletion which can lead to following use-after-free: [23827.464923] ================================================================== [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635 [23827.472251] [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5 [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core] [23827.476731] Call Trace: [23827.477260] dump_stack+0xbb/0x107 [23827.477906] print_address_description.constprop.0+0x18/0x140 [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.480905] kasan_report.cold+0x7c/0xd8 [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.482744] kasan_check_range+0x145/0x1a0 [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core] [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core] [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core] [23827.497486] ? read_word_at_a_time+0xe/0x20 [23827.498250] ? strscpy+0xa0/0x2a0 [23827.498889] process_one_work+0x8ac/0x14e0 [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400 [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [23827.501359] ? rwlock_bug.part.0+0x90/0x90 [23827.502116] worker_thread+0x53b/0x1220 [23827.502831] ? process_one_work+0x14e0/0x14e0 [23827.503627] kthread+0x328/0x3f0 [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40 [23827.505065] ? __kthread_bind_mask+0x90/0x90 [23827.505912] ret_from_fork+0x1f/0x30 [23827.506621] [23827.506987] Allocated by task 28248: [23827.507694] kasan_save_stack+0x1b/0x40 [23827.508476] __kasan_kmalloc+0x7c/0x90 [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core] [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core] [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core] [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core] [23827.513298] tc_setup_cb_add+0x1d5/0x420 [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower] [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower] [23827.515821] tc_new_tfilter+0x89a/0x2070 [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0 [23827.517300] netlink_rcv_skb+0x11d/0x340 [23827.518021] netlink_unicast+0x42b/0x700 [23827.518742] netlink_sendmsg+0x743/0xc20 [23827.519467] sock_sendmsg+0xb2/0xe0 [23827.520131] ____sys_sendmsg+0x590/0x770 [23827.520851] ___sys_sendmsg+0xd8/0x160 [23827.521552] __sys_sendmsg+0xb7/0x140 [23827.522238] do_syscall_64+0x3a/0x70 [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.523797] [23827.524163] Freed by task 25948: [23827.524780] kasan_save_stack+0x1b/0x40 [23827.525488] kasan_set_track+0x1c/0x30 [23827.526187] kasan_set_free_info+0x20/0x30 [23827.526968] __kasan_slab_free+0xed/0x130 [23827.527709] slab_free_freelist_hook+0xcf/0x1d0 [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0 [23827.529317] kfree_rcu_work+0x55f/0xb70 [23827.530024] process_one_work+0x8ac/0x14e0 [23827.530770] worker_thread+0x53b/0x1220 [23827.531480] kthread+0x328/0x3f0 [23827.532114] ret_from_fork+0x1f/0x30 [23827.532785] [23827.533147] Last potentially related work creation: [23827.534007] kasan_save_stack+0x1b/0x40 [23827.534710] kasan_record_aux_stack+0xab/0xc0 [23827.535492] kvfree_call_rcu+0x31/0x7b0 [23827.536206] mlx5e_tc_del_fdb_flow+0x577/0xef0 [mlx5_core] [23827.537305] mlx5e_flow_put+0x49/0x80 [mlx5_core] [23827.538290] mlx5e_delete_flower+0x6d1/0xe60 [mlx5_core] [23827.539300] tc_setup_cb_destroy+0x18e/0x2f0 [23827.540144] fl_hw_destroy_filter+0x1d2/0x310 [cls_flower] [23827.541148] __fl_delete+0x4dc/0x660 [cls_flower] [23827.541985] fl_delete+0x97/0x160 [cls_flower] [23827.542782] tc_del_tfilter+0x7ab/0x13d0 [23827.543503] rtnetlink_rcv_msg+0x644/0x8c0 [23827.544257] netlink_rcv_skb+0x11d/0x340 [23827.544981] netlink_unicast+0x42b/0x700 [23827.545700] netlink_sendmsg+0x743/0xc20 [23827.546424] sock_sendmsg+0xb2/0xe0 [23827.547084] ____sys_sendmsg+0x590/0x770 [23827.547850] ___sys_sendmsg+0xd8/0x160 [23827.548606] __sys_sendmsg+0xb7/0x140 [23827.549303] do_syscall_64+0x3a/0x70 [23827.549969] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.550853] [23827.551217] The buggy address belongs to the object at ffff8881d1322200 [23827.551217] which belongs to the cache kmalloc-256 of size 256 [23827.553341] The buggy address is located 140 bytes inside of [23827.553341] 256-byte region [ffff8881d1322200, ffff8881d1322300) [23827.555747] The buggy address belongs to the page: [23827.556847] page:00000000898762aa refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d1320 [23827.558651] head:00000000898762aa order:2 compound_mapcount:0 compound_pincount:0 [23827.559961] flags: 0x2ffff800010200(slab|head|node=0|zone=2|lastcpupid=0x1ffff) [23827.561243] raw: 002ffff800010200 dead000000000100 dead000000000122 ffff888100042b40 [23827.562653] raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 [23827.564112] page dumped because: kasan: bad access detected [23827.565439] [23827.565932] Memory state around the buggy address: [23827.566917] ffff8881d1322180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.568485] ffff8881d1322200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [23827.569818] >ffff8881d1322280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [23827.571143] ^ [23827.571879] ffff8881d1322300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.573283] ffff8881d1322380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.574654] ================================================================== Most of the necessary logic is already correctly implemented by mlx5e_get_next_valid_encap() helper that is used in neigh stats update handler. Make the handler generic by renaming it to mlx5e_get_next_matching_encap() and use callback to test whether flow is matching instead of hardcoded check for 'valid' flag value. Implement mlx5e_get_next_valid_encap() by calling mlx5e_get_next_matching_encap() with callback that tests encap MLX5_ENCAP_ENTRY_VALID flag. Implement new mlx5e_get_next_init_encap() helper by calling mlx5e_get_next_matching_encap() with callback that tests encap completion result to be non-error and use it in mlx5e_rep_neigh_update() to safely iterate over nhe->encap_list. Remove encap completion logic from mlx5e_rep_update_flows() since the encap entries passed to this function are already guaranteed to be properly initialized by similar code in mlx5e_get_next_init_encap(). Fixes: 2a1f1768fa17 ("net/mlx5e: Refactor neigh update for concurrent execution") Signed-off-by: Vlad Buslov <vladbu(a)nvidia.com> Reviewed-by: Roi Dayan <roid(a)nvidia.com> Signed-off-by: Saeed Mahameed <saeedm(a)nvidia.com> Conflicts: drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c drivers/net/ethernet/mellanox/mlx5/core/en_tc.c drivers/net/ethernet/mellanox/mlx5/core/en_tc.h [Adjust context because patchset 08cbabb77e90 ("Merge tag 'mlx5-updates-2021-02-04' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux") not merged] Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- .../net/ethernet/mellanox/mlx5/core/en/rep/neigh.c | 15 ++++------ .../net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 6 +--- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 33 ++++++++++++++++++++-- drivers/net/ethernet/mellanox/mlx5/core/en_tc.h | 3 ++ 4 files changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c index 58e2703..bbc182e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c @@ -129,9 +129,8 @@ static void mlx5e_rep_neigh_update(struct work_struct *work) work); struct mlx5e_neigh_hash_entry *nhe = update_work->nhe; struct neighbour *n = update_work->n; - struct mlx5e_encap_entry *e; + struct mlx5e_encap_entry *e = NULL; unsigned char ha[ETH_ALEN]; - struct mlx5e_priv *priv; bool neigh_connected; u8 nud_state, dead; @@ -152,14 +151,12 @@ static void mlx5e_rep_neigh_update(struct work_struct *work) trace_mlx5e_rep_neigh_update(nhe, ha, neigh_connected); - list_for_each_entry(e, &nhe->encap_list, encap_list) { - if (!mlx5e_encap_take(e)) - continue; + /* mlx5e_get_next_init_encap() releases previous encap before returning + * the next one. + */ + while ((e = mlx5e_get_next_init_encap(nhe, e)) != NULL) + mlx5e_rep_update_flows(netdev_priv(e->out_dev), e, neigh_connected, ha); - priv = netdev_priv(e->out_dev); - mlx5e_rep_update_flows(priv, e, neigh_connected, ha); - mlx5e_encap_put(priv, e); - } rtnl_unlock(); mlx5e_release_neigh_update_work(update_work); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index 2fdea05..552c07e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -91,13 +91,9 @@ void mlx5e_rep_update_flows(struct mlx5e_priv *priv, ASSERT_RTNL(); - /* wait for encap to be fully initialized */ - wait_for_completion(&e->res_ready); - mutex_lock(&esw->offloads.encap_tbl_lock); encap_connected = !!(e->flags & MLX5_ENCAP_ENTRY_VALID); - if (e->compl_result < 0 || (encap_connected == neigh_connected && - ether_addr_equal(e->h_dest, ha))) + if (encap_connected == neigh_connected && ether_addr_equal(e->h_dest, ha)) goto unlock; mlx5e_take_all_encap_flows(e, &flow_list); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 1ad1692..f5a3078 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1647,9 +1647,12 @@ void mlx5e_put_encap_flow_list(struct mlx5e_priv *priv, struct list_head *flow_l mlx5e_flow_put(priv, flow); } +typedef bool (match_cb)(struct mlx5e_encap_entry *); + static struct mlx5e_encap_entry * -mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, - struct mlx5e_encap_entry *e) +mlx5e_get_next_matching_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e, + match_cb match) { struct mlx5e_encap_entry *next = NULL; @@ -1684,7 +1687,7 @@ mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, /* wait for encap to be fully initialized */ wait_for_completion(&next->res_ready); /* continue searching if encap entry is not in valid state after completion */ - if (!(next->flags & MLX5_ENCAP_ENTRY_VALID)) { + if (!match(next)) { e = next; goto retry; } @@ -1692,6 +1695,30 @@ mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, return next; } +static bool mlx5e_encap_valid(struct mlx5e_encap_entry *e) +{ + return e->flags & MLX5_ENCAP_ENTRY_VALID; +} + +static struct mlx5e_encap_entry * +mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e) +{ + return mlx5e_get_next_matching_encap(nhe, e, mlx5e_encap_valid); +} + +static bool mlx5e_encap_initialized(struct mlx5e_encap_entry *e) +{ + return e->compl_result >= 0; +} + +struct mlx5e_encap_entry * +mlx5e_get_next_init_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e) +{ + return mlx5e_get_next_matching_encap(nhe, e, mlx5e_encap_initialized); +} + void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) { struct mlx5e_neigh *m_neigh = &nhe->m_neigh; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h index 4a2ce24..e7e5f0c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h @@ -161,6 +161,9 @@ void mlx5e_take_all_encap_flows(struct mlx5e_encap_entry *e, struct list_head *f void mlx5e_put_encap_flow_list(struct mlx5e_priv *priv, struct list_head *flow_list); struct mlx5e_neigh_hash_entry; +struct mlx5e_encap_entry * +mlx5e_get_next_init_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e); void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe); void mlx5e_tc_reoffload_flows_work(struct work_struct *work); -- 2.9.5

2 1

[PATCH OLK-5.10] gpiolib: cdev: Fix use after free in lineinfo_changed_notify
by Wupeng Ma 11 Jun '24

11 Jun '24

From: Zhongqiu Han <quic_zhonhan(a)quicinc.com> stable inclusion from stable-v6.6.31 commit 95ca7c90eaf5ea8a8460536535101e3e81160e2a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UG5Z CVE: CVE-2024-36899 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 02f6b0e1ec7e0e7d059dddc893645816552039da ] The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines. Here is the typical stack when issue happened: [free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule() [use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway. To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain. Fixes: 51c1064e82e7 ("gpiolib: add new ioctl() for monitoring changes in line info") Signed-off-by: Zhongqiu Han <quic_zhonhan(a)quicinc.com> Link: https://lore.kernel.org/r/20240505141156.2944912-1-quic_zhonhan@quicinc.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/gpio/gpiolib-cdev.c [Ma Wupeng: context conflicts] Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/gpio/gpiolib-cdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 40d0196d8bdc..b273cb988aec 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -2345,9 +2345,9 @@ static int gpio_chrdev_release(struct inode *inode, struct file *file) struct gpio_chardev_data *cdev = file->private_data; struct gpio_device *gdev = cdev->gdev; - bitmap_free(cdev->watched_lines); blocking_notifier_chain_unregister(&gdev->notifier, &cdev->lineinfo_changed_nb); + bitmap_free(cdev->watched_lines); put_device(&gdev->dev); kfree(cdev); -- 2.25.1

2 1

[PATCH OLK-5.10] nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
by Zheng Zucheng 11 Jun '24

11 Jun '24

From: Ryosuke Yasuoka <ryasuoka(a)redhat.com> stable inclusion from stable-v6.6.26 commit a946ebee45b09294c8b0b0e77410b763c4d2817a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG8F CVE: CVE-2024-35915 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d24b03535e5eb82e025219c2f632b485409c898f ] syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes. Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation") Reported-and-tested-by: syzbot+7ea9413ea6749baf5574(a)syzkaller.appspotmail.com Reported-and-tested-by: syzbot+29b5ca705d2e0f4a44d2(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=7ea9413ea6749baf5574 [1] Closes: https://syzkaller.appspot.com/bug?extid=29b5ca705d2e0f4a44d2 [2] Signed-off-by: Ryosuke Yasuoka <ryasuoka(a)redhat.com> Reviewed-by: Jeremy Cline <jeremy(a)jcline.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- net/nfc/nci/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 9e524884d4ac..8bfc87a6a4f6 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -1498,6 +1498,11 @@ static void nci_rx_work(struct work_struct *work) nfc_send_to_raw_sock(ndev->nfc_dev, skb, RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); + if (!nci_plen(skb->data)) { + kfree_skb(skb); + break; + } + /* Process frame */ switch (nci_mt(skb->data)) { case NCI_MT_RSP_PKT: -- 2.34.1

2 1

[PATCH OLK-5.10 0/3] Refactor hbmdev a bit
by Zhang Zekun 11 Jun '24

11 Jun '24

Refactoring some mechanism in hbmdev: 1. Memory node on the hbmdev need to be offlined before poweroff the device. 2. Use AML code to trigger the hbmdev poweroff process Zhang Zekun (3): soc: hisilicon: hisi_hbmdev: Notify the device in the ACPI soc: hisilicon: Don't poweroff if memblocks don't offlined arm64: config: Open the hbmdev related config arch/arm64/configs/openeuler_defconfig | 5 ++-- drivers/acpi/osl.c | 1 - drivers/soc/hisilicon/hisi_hbmdev.c | 34 +++++++++----------------- 3 files changed, 14 insertions(+), 26 deletions(-) -- 2.17.1

2 4

[PATCH openEuler-22.03-LTS-SP1] nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
by Zheng Zucheng 11 Jun '24

11 Jun '24

From: Ryosuke Yasuoka <ryasuoka(a)redhat.com> stable inclusion from stable-v6.6.26 commit a946ebee45b09294c8b0b0e77410b763c4d2817a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG8F CVE: CVE-2024-35915 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d24b03535e5eb82e025219c2f632b485409c898f ] syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes. Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation") Reported-and-tested-by: syzbot+7ea9413ea6749baf5574(a)syzkaller.appspotmail.com Reported-and-tested-by: syzbot+29b5ca705d2e0f4a44d2(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=7ea9413ea6749baf5574 [1] Closes: https://syzkaller.appspot.com/bug?extid=29b5ca705d2e0f4a44d2 [2] Signed-off-by: Ryosuke Yasuoka <ryasuoka(a)redhat.com> Reviewed-by: Jeremy Cline <jeremy(a)jcline.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- net/nfc/nci/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 9e524884d4ac..8bfc87a6a4f6 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -1498,6 +1498,11 @@ static void nci_rx_work(struct work_struct *work) nfc_send_to_raw_sock(ndev->nfc_dev, skb, RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); + if (!nci_plen(skb->data)) { + kfree_skb(skb); + break; + } + /* Process frame */ switch (nci_mt(skb->data)) { case NCI_MT_RSP_PKT: -- 2.34.1

2 1

[PATCH OLK-5.10] net/mlx5e: Fix use-after-free of encap entry in neigh update handler
by Zhang Changzhong 11 Jun '24

11 Jun '24

From: Vlad Buslov <vladbu(a)nvidia.com> mainline inclusion from mainline-v5.13-rc7 commit fb1a3132ee1ac968316e45d21a48703a6db0b6c3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4FV CVE: CVE-2021-47247 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent encap entry insertion/deletion which can lead to following use-after-free: [23827.464923] ================================================================== [23827.469446] BUG: KASAN: use-after-free in mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.470971] Read of size 4 at addr ffff8881d132228c by task kworker/u20:6/21635 [23827.472251] [23827.472615] CPU: 9 PID: 21635 Comm: kworker/u20:6 Not tainted 5.13.0-rc3+ #5 [23827.473788] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [23827.475639] Workqueue: mlx5e mlx5e_rep_neigh_update [mlx5_core] [23827.476731] Call Trace: [23827.477260] dump_stack+0xbb/0x107 [23827.477906] print_address_description.constprop.0+0x18/0x140 [23827.478896] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.479879] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.480905] kasan_report.cold+0x7c/0xd8 [23827.481701] ? mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.482744] kasan_check_range+0x145/0x1a0 [23827.493112] mlx5e_encap_take+0x72/0x140 [mlx5_core] [23827.494054] ? mlx5e_tc_tun_encap_info_equal_generic+0x140/0x140 [mlx5_core] [23827.495296] mlx5e_rep_neigh_update+0x41e/0x5e0 [mlx5_core] [23827.496338] ? mlx5e_rep_neigh_entry_release+0xb80/0xb80 [mlx5_core] [23827.497486] ? read_word_at_a_time+0xe/0x20 [23827.498250] ? strscpy+0xa0/0x2a0 [23827.498889] process_one_work+0x8ac/0x14e0 [23827.499638] ? lockdep_hardirqs_on_prepare+0x400/0x400 [23827.500537] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [23827.501359] ? rwlock_bug.part.0+0x90/0x90 [23827.502116] worker_thread+0x53b/0x1220 [23827.502831] ? process_one_work+0x14e0/0x14e0 [23827.503627] kthread+0x328/0x3f0 [23827.504254] ? _raw_spin_unlock_irq+0x24/0x40 [23827.505065] ? __kthread_bind_mask+0x90/0x90 [23827.505912] ret_from_fork+0x1f/0x30 [23827.506621] [23827.506987] Allocated by task 28248: [23827.507694] kasan_save_stack+0x1b/0x40 [23827.508476] __kasan_kmalloc+0x7c/0x90 [23827.509197] mlx5e_attach_encap+0xde1/0x1d40 [mlx5_core] [23827.510194] mlx5e_tc_add_fdb_flow+0x397/0xc40 [mlx5_core] [23827.511218] __mlx5e_add_fdb_flow+0x519/0xb30 [mlx5_core] [23827.512234] mlx5e_configure_flower+0x191c/0x4870 [mlx5_core] [23827.513298] tc_setup_cb_add+0x1d5/0x420 [23827.514023] fl_hw_replace_filter+0x382/0x6a0 [cls_flower] [23827.514975] fl_change+0x2ceb/0x4a51 [cls_flower] [23827.515821] tc_new_tfilter+0x89a/0x2070 [23827.516548] rtnetlink_rcv_msg+0x644/0x8c0 [23827.517300] netlink_rcv_skb+0x11d/0x340 [23827.518021] netlink_unicast+0x42b/0x700 [23827.518742] netlink_sendmsg+0x743/0xc20 [23827.519467] sock_sendmsg+0xb2/0xe0 [23827.520131] ____sys_sendmsg+0x590/0x770 [23827.520851] ___sys_sendmsg+0xd8/0x160 [23827.521552] __sys_sendmsg+0xb7/0x140 [23827.522238] do_syscall_64+0x3a/0x70 [23827.522907] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.523797] [23827.524163] Freed by task 25948: [23827.524780] kasan_save_stack+0x1b/0x40 [23827.525488] kasan_set_track+0x1c/0x30 [23827.526187] kasan_set_free_info+0x20/0x30 [23827.526968] __kasan_slab_free+0xed/0x130 [23827.527709] slab_free_freelist_hook+0xcf/0x1d0 [23827.528528] kmem_cache_free_bulk+0x33a/0x6e0 [23827.529317] kfree_rcu_work+0x55f/0xb70 [23827.530024] process_one_work+0x8ac/0x14e0 [23827.530770] worker_thread+0x53b/0x1220 [23827.531480] kthread+0x328/0x3f0 [23827.532114] ret_from_fork+0x1f/0x30 [23827.532785] [23827.533147] Last potentially related work creation: [23827.534007] kasan_save_stack+0x1b/0x40 [23827.534710] kasan_record_aux_stack+0xab/0xc0 [23827.535492] kvfree_call_rcu+0x31/0x7b0 [23827.536206] mlx5e_tc_del_fdb_flow+0x577/0xef0 [mlx5_core] [23827.537305] mlx5e_flow_put+0x49/0x80 [mlx5_core] [23827.538290] mlx5e_delete_flower+0x6d1/0xe60 [mlx5_core] [23827.539300] tc_setup_cb_destroy+0x18e/0x2f0 [23827.540144] fl_hw_destroy_filter+0x1d2/0x310 [cls_flower] [23827.541148] __fl_delete+0x4dc/0x660 [cls_flower] [23827.541985] fl_delete+0x97/0x160 [cls_flower] [23827.542782] tc_del_tfilter+0x7ab/0x13d0 [23827.543503] rtnetlink_rcv_msg+0x644/0x8c0 [23827.544257] netlink_rcv_skb+0x11d/0x340 [23827.544981] netlink_unicast+0x42b/0x700 [23827.545700] netlink_sendmsg+0x743/0xc20 [23827.546424] sock_sendmsg+0xb2/0xe0 [23827.547084] ____sys_sendmsg+0x590/0x770 [23827.547850] ___sys_sendmsg+0xd8/0x160 [23827.548606] __sys_sendmsg+0xb7/0x140 [23827.549303] do_syscall_64+0x3a/0x70 [23827.549969] entry_SYSCALL_64_after_hwframe+0x44/0xae [23827.550853] [23827.551217] The buggy address belongs to the object at ffff8881d1322200 [23827.551217] which belongs to the cache kmalloc-256 of size 256 [23827.553341] The buggy address is located 140 bytes inside of [23827.553341] 256-byte region [ffff8881d1322200, ffff8881d1322300) [23827.555747] The buggy address belongs to the page: [23827.556847] page:00000000898762aa refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d1320 [23827.558651] head:00000000898762aa order:2 compound_mapcount:0 compound_pincount:0 [23827.559961] flags: 0x2ffff800010200(slab|head|node=0|zone=2|lastcpupid=0x1ffff) [23827.561243] raw: 002ffff800010200 dead000000000100 dead000000000122 ffff888100042b40 [23827.562653] raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 [23827.564112] page dumped because: kasan: bad access detected [23827.565439] [23827.565932] Memory state around the buggy address: [23827.566917] ffff8881d1322180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.568485] ffff8881d1322200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [23827.569818] >ffff8881d1322280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [23827.571143] ^ [23827.571879] ffff8881d1322300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.573283] ffff8881d1322380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [23827.574654] ================================================================== Most of the necessary logic is already correctly implemented by mlx5e_get_next_valid_encap() helper that is used in neigh stats update handler. Make the handler generic by renaming it to mlx5e_get_next_matching_encap() and use callback to test whether flow is matching instead of hardcoded check for 'valid' flag value. Implement mlx5e_get_next_valid_encap() by calling mlx5e_get_next_matching_encap() with callback that tests encap MLX5_ENCAP_ENTRY_VALID flag. Implement new mlx5e_get_next_init_encap() helper by calling mlx5e_get_next_matching_encap() with callback that tests encap completion result to be non-error and use it in mlx5e_rep_neigh_update() to safely iterate over nhe->encap_list. Remove encap completion logic from mlx5e_rep_update_flows() since the encap entries passed to this function are already guaranteed to be properly initialized by similar code in mlx5e_get_next_init_encap(). Fixes: 2a1f1768fa17 ("net/mlx5e: Refactor neigh update for concurrent execution") Signed-off-by: Vlad Buslov <vladbu(a)nvidia.com> Reviewed-by: Roi Dayan <roid(a)nvidia.com> Signed-off-by: Saeed Mahameed <saeedm(a)nvidia.com> Conflicts: drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c drivers/net/ethernet/mellanox/mlx5/core/en_tc.c drivers/net/ethernet/mellanox/mlx5/core/en_tc.h [Adjust context because patchset 08cbabb77e90 ("Merge tag 'mlx5-updates-2021-02-04' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux") not merged] Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- .../net/ethernet/mellanox/mlx5/core/en/rep/neigh.c | 15 ++++------ .../net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 6 +--- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 33 ++++++++++++++++++++-- drivers/net/ethernet/mellanox/mlx5/core/en_tc.h | 3 ++ 4 files changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c index 58e2703..bbc182e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/neigh.c @@ -129,9 +129,8 @@ static void mlx5e_rep_neigh_update(struct work_struct *work) work); struct mlx5e_neigh_hash_entry *nhe = update_work->nhe; struct neighbour *n = update_work->n; - struct mlx5e_encap_entry *e; + struct mlx5e_encap_entry *e = NULL; unsigned char ha[ETH_ALEN]; - struct mlx5e_priv *priv; bool neigh_connected; u8 nud_state, dead; @@ -152,14 +151,12 @@ static void mlx5e_rep_neigh_update(struct work_struct *work) trace_mlx5e_rep_neigh_update(nhe, ha, neigh_connected); - list_for_each_entry(e, &nhe->encap_list, encap_list) { - if (!mlx5e_encap_take(e)) - continue; + /* mlx5e_get_next_init_encap() releases previous encap before returning + * the next one. + */ + while ((e = mlx5e_get_next_init_encap(nhe, e)) != NULL) + mlx5e_rep_update_flows(netdev_priv(e->out_dev), e, neigh_connected, ha); - priv = netdev_priv(e->out_dev); - mlx5e_rep_update_flows(priv, e, neigh_connected, ha); - mlx5e_encap_put(priv, e); - } rtnl_unlock(); mlx5e_release_neigh_update_work(update_work); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index 2fdea05..552c07e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -91,13 +91,9 @@ void mlx5e_rep_update_flows(struct mlx5e_priv *priv, ASSERT_RTNL(); - /* wait for encap to be fully initialized */ - wait_for_completion(&e->res_ready); - mutex_lock(&esw->offloads.encap_tbl_lock); encap_connected = !!(e->flags & MLX5_ENCAP_ENTRY_VALID); - if (e->compl_result < 0 || (encap_connected == neigh_connected && - ether_addr_equal(e->h_dest, ha))) + if (encap_connected == neigh_connected && ether_addr_equal(e->h_dest, ha)) goto unlock; mlx5e_take_all_encap_flows(e, &flow_list); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index f7ccca7..5ca5c3d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1653,9 +1653,12 @@ void mlx5e_put_encap_flow_list(struct mlx5e_priv *priv, struct list_head *flow_l mlx5e_flow_put(priv, flow); } +typedef bool (match_cb)(struct mlx5e_encap_entry *); + static struct mlx5e_encap_entry * -mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, - struct mlx5e_encap_entry *e) +mlx5e_get_next_matching_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e, + match_cb match) { struct mlx5e_encap_entry *next = NULL; @@ -1690,7 +1693,7 @@ mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, /* wait for encap to be fully initialized */ wait_for_completion(&next->res_ready); /* continue searching if encap entry is not in valid state after completion */ - if (!(next->flags & MLX5_ENCAP_ENTRY_VALID)) { + if (!match(next)) { e = next; goto retry; } @@ -1698,6 +1701,30 @@ mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, return next; } +static bool mlx5e_encap_valid(struct mlx5e_encap_entry *e) +{ + return e->flags & MLX5_ENCAP_ENTRY_VALID; +} + +static struct mlx5e_encap_entry * +mlx5e_get_next_valid_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e) +{ + return mlx5e_get_next_matching_encap(nhe, e, mlx5e_encap_valid); +} + +static bool mlx5e_encap_initialized(struct mlx5e_encap_entry *e) +{ + return e->compl_result >= 0; +} + +struct mlx5e_encap_entry * +mlx5e_get_next_init_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e) +{ + return mlx5e_get_next_matching_encap(nhe, e, mlx5e_encap_initialized); +} + void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) { struct mlx5e_neigh *m_neigh = &nhe->m_neigh; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h index 4a2ce24..e7e5f0c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h @@ -161,6 +161,9 @@ void mlx5e_take_all_encap_flows(struct mlx5e_encap_entry *e, struct list_head *f void mlx5e_put_encap_flow_list(struct mlx5e_priv *priv, struct list_head *flow_list); struct mlx5e_neigh_hash_entry; +struct mlx5e_encap_entry * +mlx5e_get_next_init_encap(struct mlx5e_neigh_hash_entry *nhe, + struct mlx5e_encap_entry *e); void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe); void mlx5e_tc_reoffload_flows_work(struct work_struct *work); -- 2.9.5

2 1

[PATCH openEuler-22.03-LTS-SP1] ALSA: scarlett2: Add missing error checks to *_ctl_get()
by Yu Liao 11 Jun '24

11 Jun '24

From: "Geoffrey D. Bennett" <g(a)b4.vu> stable inclusion from stable-v5.15.148 commit 3a09488f4f67f7ade59b8ac62a6c7fb29439cf51 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9F0 CVE: CVE-2023-52680 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 50603a67daef161c78c814580d57f7f0be57167e ] The *_ctl_get() functions which call scarlett2_update_*() were not checking the return value. Fix to check the return value and pass to the caller. Signed-off-by: Geoffrey D. Bennett <g(a)b4.vu> Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.17030010… Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: sound/usb/mixer_scarlett_gen2.c [Follow the patch logic and adapt the patch.] Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- sound/usb/mixer_scarlett_gen2.c | 43 +++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 6b7c8b8d7111..d1c0d2bf4b6f 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1032,14 +1032,20 @@ static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->master_vol; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, @@ -1049,14 +1055,19 @@ static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; int index = elem->control; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); - + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->vol[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, @@ -1322,14 +1333,20 @@ static int scarlett2_button_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->buttons[elem->control]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_button_ctl_put(struct snd_kcontrol *kctl, -- 2.33.0

2 1

[PATCH OLK-5.10] ALSA: scarlett2: Add missing error checks to *_ctl_get()
by Yu Liao 11 Jun '24

11 Jun '24

From: "Geoffrey D. Bennett" <g(a)b4.vu> stable inclusion from stable-v5.15.148 commit 3a09488f4f67f7ade59b8ac62a6c7fb29439cf51 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9F0 CVE: CVE-2023-52680 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 50603a67daef161c78c814580d57f7f0be57167e ] The *_ctl_get() functions which call scarlett2_update_*() were not checking the return value. Fix to check the return value and pass to the caller. Signed-off-by: Geoffrey D. Bennett <g(a)b4.vu> Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.17030010… Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: sound/usb/mixer_scarlett_gen2.c [Follow the patch logic and adapt the patch.] Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- sound/usb/mixer_scarlett_gen2.c | 43 +++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 6b7c8b8d7111..d1c0d2bf4b6f 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1032,14 +1032,20 @@ static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->master_vol; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, @@ -1049,14 +1055,19 @@ static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; int index = elem->control; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); - + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->vol[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, @@ -1322,14 +1333,20 @@ static int scarlett2_button_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->buttons[elem->control]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_button_ctl_put(struct snd_kcontrol *kctl, -- 2.33.0

2 1

[OLK-5.10 PATCH] ALSA: scarlett2: Add missing error checks to *_ctl_get()
by Yu Liao 11 Jun '24

11 Jun '24

From: "Geoffrey D. Bennett" <g(a)b4.vu> stable inclusion from stable-v5.15.148 commit 3a09488f4f67f7ade59b8ac62a6c7fb29439cf51 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9F0 CVE: CVE-2023-52680 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 50603a67daef161c78c814580d57f7f0be57167e ] The *_ctl_get() functions which call scarlett2_update_*() were not checking the return value. Fix to check the return value and pass to the caller. Signed-off-by: Geoffrey D. Bennett <g(a)b4.vu> Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.17030010… Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: sound/usb/mixer_scarlett_gen2.c [Follow the patch logic and adapt the patch.] Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- sound/usb/mixer_scarlett_gen2.c | 43 +++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 6b7c8b8d7111..d1c0d2bf4b6f 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1032,14 +1032,20 @@ static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->master_vol; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, @@ -1049,14 +1055,19 @@ static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; int index = elem->control; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); - + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->vol[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, @@ -1322,14 +1333,20 @@ static int scarlett2_button_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->buttons[elem->control]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_button_ctl_put(struct snd_kcontrol *kctl, -- 2.33.0

1 0

[openEuler-22.03-LTS-SP1 PATCH] ALSA: scarlett2: Add missing error checks to *_ctl_get()
by Yu Liao 11 Jun '24

11 Jun '24

From: "Geoffrey D. Bennett" <g(a)b4.vu> stable inclusion from stable-v5.15.148 commit 3a09488f4f67f7ade59b8ac62a6c7fb29439cf51 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9F0 CVE: CVE-2023-52680 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 50603a67daef161c78c814580d57f7f0be57167e ] The *_ctl_get() functions which call scarlett2_update_*() were not checking the return value. Fix to check the return value and pass to the caller. Signed-off-by: Geoffrey D. Bennett <g(a)b4.vu> Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.17030010… Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: sound/usb/mixer_scarlett_gen2.c [Follow the patch logic and adapt the patch.] Signed-off-by: Yu Liao <liaoyu15(a)huawei.com> --- sound/usb/mixer_scarlett_gen2.c | 43 +++++++++++++++++++++++---------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 6b7c8b8d7111..d1c0d2bf4b6f 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1032,14 +1032,20 @@ static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->master_vol; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, @@ -1049,14 +1055,19 @@ static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; int index = elem->control; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); - + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->vol[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, @@ -1322,14 +1333,20 @@ static int scarlett2_button_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_mixer_data *private = mixer->private_data; + int err = 0; mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex); + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->buttons[elem->control]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; } static int scarlett2_button_ctl_put(struct snd_kcontrol *kctl, -- 2.33.0

1 0

[PATCH OLK-5.10] cvm_tsi: Fix security issue for Confidential cVM TSI
by Shengjie Li 11 Jun '24

11 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA45I1 -------------------------------- Fix security issue for Confidential cVM TSI: 1. Init TSI driver when config cvm_guest. 2. Modify the token structure to reduce the variables that are exposed to the user state. 3. Add a lock for obtaining the remote attestation report. Fixes: 31071f4b2a0b ("cvm_tsi: add cvm tsi interface") Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/asm/cvm_smc.h | 22 +++---- arch/arm64/include/uapi/asm/cvm_tsi.h | 11 ++-- arch/arm64/kernel/cvm_tsi.c | 89 ++++++++++++++------------- 3 files changed, 64 insertions(+), 58 deletions(-) diff --git a/arch/arm64/include/asm/cvm_smc.h b/arch/arm64/include/asm/cvm_smc.h index c4d56333e3..91688bc169 100644 --- a/arch/arm64/include/asm/cvm_smc.h +++ b/arch/arm64/include/asm/cvm_smc.h @@ -124,30 +124,30 @@ static inline unsigned long tsi_measurement_read(struct cvm_measurement *cvm_mea return res.a0; } -static inline unsigned long tsi_attestation_token_init(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_init(unsigned char *challenge) { struct arm_smccc_res res; - unsigned char *challenge; + unsigned char *buf; - challenge = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); - if (!challenge) + buf = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); + if (!buf) return -ENOMEM; - memcpy(challenge, attest_cmd->challenge, CHALLENGE_SIZE); + memcpy(buf, challenge, CHALLENGE_SIZE); - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(challenge), &res); - kfree(challenge); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(buf), &res); + kfree(buf); return res.a0; } -static inline unsigned long tsi_attestation_token_continue(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_continue(struct cvm_token_granule *token_granule) { struct arm_smccc_res res; - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(attest_cmd->granule_ipa), - attest_cmd->offset, attest_cmd->size, &res); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(token_granule->ipa), + token_granule->offset, token_granule->size, &res); - attest_cmd->num_wr_bytes = res.a1; + token_granule->num_wr_bytes = res.a1; return res.a0; } diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 43e17a0da0..1ed4386db2 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -55,10 +55,13 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ - unsigned long token_size; /* return: challenge value */ - void *granule_head; - void *granule_ipa; /* IPA of the Granule to which the token will be written */ - unsigned long granule_count; + unsigned long token_size; /* return: token size */ +}; + +struct cvm_token_granule { + void *head; + void *ipa; /* IPA of the Granule to which the token will be written */ + unsigned long count; unsigned long offset; /* Offset within Granule to start of buffer in bytes */ unsigned long size; /* Size of buffer in bytes */ unsigned long num_wr_bytes; /* Number of bytes written to buffer */ diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index b48e5b17f4..252fe5352a 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -4,6 +4,7 @@ #include <linux/slab.h> #include <linux/miscdevice.h> #include <linux/preempt.h> +#include <asm/cvm_guest.h> #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> @@ -16,20 +17,19 @@ struct attestation_token { static struct attestation_token token; +static DEFINE_SPINLOCK(lock); + static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -static int tmm_tsi_release(struct inode *inode, struct file *file); static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, size_t size, loff_t *offset); static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg); -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token); +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg); static int tmm_get_device_cert(struct cca_device_cert __user *arg); static const struct file_operations tmm_tsi_fops = { .owner = THIS_MODULE, .read = tmm_token_read, - .release = tmm_tsi_release, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -44,6 +44,9 @@ static int __init tmm_tsi_init(void) unsigned long ver; int ret; + if (!is_cvm_world()) + return -EIO; + ver = tsi_get_version(); if (ver == SMCCC_RET_NOT_SUPPORTED) { pr_err("tmm_tsi: SMC return not supported!\n"); @@ -56,6 +59,11 @@ static int __init tmm_tsi_init(void) return ret; } + /* Allocate a large memory */ + token.buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); + if (!token.buf) + return -ENOMEM; + pr_warn("tmm_tsi: module loaded (version %lu.%lu).\n", TSI_ABI_VERSION_GET_MAJOR(ver), TSI_ABI_VERSION_GET_MINOR(ver)); @@ -65,8 +73,10 @@ static int __init tmm_tsi_init(void) static void __exit tmm_tsi_exit(void) { - if (token.buf != NULL) + if (token.buf != NULL) { + memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); kfree(token.buf); + } misc_deregister(&ioctl_dev); pr_warn("tmm_tsi: module unloaded.\n"); } @@ -80,7 +90,7 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg ret = tmm_get_tsi_version((struct cvm_tsi_version *)arg); break; case TMM_GET_ATTESTATION_TOKEN: - ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg, &token); + ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg); break; case TMM_GET_DEVICE_CERT: ret = tmm_get_device_cert((struct cca_device_cert *)arg); @@ -99,28 +109,25 @@ static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, int ret; int to_copy; - if (*offset >= token.size) + spin_lock(&lock); + if (*offset >= token.size) { + spin_unlock(&lock); return 0; + } to_copy = min((int)size, (int)(token.size - *offset)); ret = copy_to_user(user_buffer, token.buf + *offset, to_copy); if (ret) { pr_err("tmm_tsi: copy token to user failed (%d)!\n", ret); + spin_unlock(&lock); return -1; } *offset += to_copy; + spin_unlock(&lock); return to_copy; } -static int tmm_tsi_release(struct inode *inode, struct file *file) -{ - if (token.buf != NULL) { - memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); - kfree(token.buf); - } - return 0; -} static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { @@ -141,65 +148,61 @@ static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) return 0; } -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token) +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) { unsigned long ret; - struct cvm_attestation_cmd cmd = {0}; + struct cvm_token_granule token_granule = {0}; + unsigned char challenge[CHALLENGE_SIZE]; - ret = copy_from_user(&(cmd.challenge), &(arg->challenge), sizeof(cmd.challenge)); + ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); return -EFAULT; } - /* Allocate a large memory */ - attest_token->buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); - if (!attest_token->buf) - return -ENOMEM; - cmd.granule_head = attest_token->buf; - cmd.granule_ipa = cmd.granule_head; + spin_lock(&lock); + token_granule.head = token.buf; + token_granule.ipa = token_granule.head; - /* preempt_disable(); */ - - ret = tsi_attestation_token_init(&cmd); + ret = tsi_attestation_token_init(challenge); if (ret) { pr_err("tmm_tsi: tsi call tsi_attestation_token_init failed (%lu)!\n", ret); + spin_unlock(&lock); return -EIO; } do { /* Retrieve one Granule of data per loop iteration */ - cmd.granule_ipa = cmd.granule_head + - (unsigned long)(cmd.granule_count * GRANULE_SIZE); - cmd.offset = 0; + token_granule.ipa = token_granule.head + + (unsigned long)(token_granule.count * GRANULE_SIZE); + token_granule.offset = 0; do { /* Retrieve sub-Granule chunk of data per loop iteration */ - cmd.size = GRANULE_SIZE - cmd.offset; - ret = tsi_attestation_token_continue(&cmd); - cmd.offset += cmd.num_wr_bytes; - } while (ret == TSI_INCOMPLETE && cmd.offset < GRANULE_SIZE); + token_granule.size = GRANULE_SIZE - token_granule.offset; + ret = tsi_attestation_token_continue(&token_granule); + token_granule.offset += token_granule.num_wr_bytes; + } while (ret == TSI_INCOMPLETE && token_granule.offset < GRANULE_SIZE); - cmd.granule_count += 1; - if (cmd.granule_count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { + token_granule.count += 1; + if (token_granule.count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { pr_err("tmm_tsi: macro MAX_TOKEN_GRANULE_PAGE (%d) is too small!\n", MAX_TOKEN_GRANULE_PAGE); + spin_unlock(&lock); return -ENOMEM; } } while (ret == TSI_INCOMPLETE); - /* preempt_enable(); */ - /* Send to user space the total size of the token */ - cmd.granule_count = cmd.granule_count - 1; - cmd.token_size = (unsigned long)(GRANULE_SIZE * cmd.granule_count) + cmd.offset; - attest_token->size = cmd.token_size; + token_granule.count = token_granule.count - 1; + token.size = (unsigned long)(GRANULE_SIZE * token_granule.count) + token_granule.offset; - ret = copy_to_user(&(arg->token_size), &(cmd.token_size), sizeof(cmd.token_size)); + ret = copy_to_user(&(arg->token_size), &(token.size), sizeof(token.size)); if (ret) { pr_err("tmm_tsi: copy data to user failed (%lu)!\n", ret); + spin_unlock(&lock); return -EFAULT; } + spin_unlock(&lock); return 0; } -- 2.37.2.windows.2

2 1

[PATCH OLK-6.6] block: fix module reference leakage from bdev_open_by_dev error path
by Li Lingfeng 11 Jun '24

11 Jun '24

From: Yu Kuai <yukuai3(a)huawei.com> mainline inclusion from mainline-v6.9-rc6 commit 9617cd6f24b294552a817f80f5225431ef67b540 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9I0 CVE: CVE-2024-35859 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- At the time bdev_may_open() is called, module reference is grabbed already, hence module reference should be released if bdev_may_open() failed. This problem is found by code review. Fixes: ed5cc702d311 ("block: Add config option to not allow writing to mounted devices") Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> Link: https://lore.kernel.org/r/20240406090930.2252838-22-yukuai1@huaweicloud.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- block/bdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/bdev.c b/block/bdev.c index b555deef0d76..07e8e3686aea 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -946,7 +946,7 @@ struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder, goto abort_claiming; ret = -EBUSY; if (!bdev_may_open(bdev, mode)) - goto abort_claiming; + goto put_module; if (bdev_is_partition(bdev)) ret = blkdev_get_part(bdev, mode); else -- 2.31.1

2 1

[PATCH OLK-6.6] tipc: fix a possible memleak in tipc_buf_append
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Xin Long <lucien.xin(a)gmail.com> stable inclusion from stable-v6.6.31 commit 614c5a5ae45a921595952117b2e2bd4d4bf9b574 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9US4T CVE: CVE-2024-36954 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 97bf6f81b29a8efaf5d0983251a7450e5794370d ] __skb_linearize() doesn't free the skb when it fails, so move '*buf = NULL' after __skb_linearize(), so that the skb can be freed on the err path. Fixes: b7df21cf1b79 ("tipc: skb_linearize the head skb when reassembling msgs") Reported-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Xin Long <lucien.xin(a)gmail.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: Tung Nguyen <tung.q.nguyen(a)dektech.com.au> Link: https://lore.kernel.org/r/90710748c29a1521efac4f75ea01b3b7e61414cf.17144858… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/tipc/msg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 5c9fd4791c4b..c52ab423082c 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -142,9 +142,9 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (fragid == FIRST_FRAGMENT) { if (unlikely(head)) goto err; - *buf = NULL; if (skb_has_frag_list(frag) && __skb_linearize(frag)) goto err; + *buf = NULL; frag = skb_unshare(frag, GFP_ATOMIC); if (unlikely(!frag)) goto err; -- 2.34.1

2 1

[PATCH] tipc: fix a possible memleak in tipc_buf_append
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Xin Long <lucien.xin(a)gmail.com> [ Upstream commit 97bf6f81b29a8efaf5d0983251a7450e5794370d ] __skb_linearize() doesn't free the skb when it fails, so move '*buf = NULL' after __skb_linearize(), so that the skb can be freed on the err path. Fixes: b7df21cf1b79 ("tipc: skb_linearize the head skb when reassembling msgs") Reported-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Xin Long <lucien.xin(a)gmail.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: Tung Nguyen <tung.q.nguyen(a)dektech.com.au> Link: https://lore.kernel.org/r/90710748c29a1521efac4f75ea01b3b7e61414cf.17144858… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- net/tipc/msg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 5c9fd4791c4b..c52ab423082c 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -142,9 +142,9 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (fragid == FIRST_FRAGMENT) { if (unlikely(head)) goto err; - *buf = NULL; if (skb_has_frag_list(frag) && __skb_linearize(frag)) goto err; + *buf = NULL; frag = skb_unshare(frag, GFP_ATOMIC); if (unlikely(!frag)) goto err; -- 2.34.1

1 0

[PATCH OLK-6.6] gpiolib: cdev: Fix use after free in lineinfo_changed_notify
by Wupeng Ma 11 Jun '24

11 Jun '24

From: Zhongqiu Han <quic_zhonhan(a)quicinc.com> stable inclusion from stable-v6.6.31 commit 95ca7c90eaf5ea8a8460536535101e3e81160e2a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UG5Z CVE: CVE-2024-36899 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 02f6b0e1ec7e0e7d059dddc893645816552039da ] The use-after-free issue occurs as follows: when the GPIO chip device file is being closed by invoking gpio_chrdev_release(), watched_lines is freed by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier chain failed due to waiting write rwsem. Additionally, one of the GPIO chip's lines is also in the release process and holds the notifier chain's read rwsem. Consequently, a race condition leads to the use-after-free of watched_lines. Here is the typical stack when issue happened: [free] gpio_chrdev_release() --> bitmap_free(cdev->watched_lines) <-- freed --> blocking_notifier_chain_unregister() --> down_write(&nh->rwsem) <-- waiting rwsem --> __down_write_common() --> rwsem_down_write_slowpath() --> schedule_preempt_disabled() --> schedule() [use] st54spi_gpio_dev_release() --> gpio_free() --> gpiod_free() --> gpiod_free_commit() --> gpiod_line_state_notify() --> blocking_notifier_call_chain() --> down_read(&nh->rwsem); <-- held rwsem --> notifier_call_chain() --> lineinfo_changed_notify() --> test_bit(xxxx, cdev->watched_lines) <-- use after free The side effect of the use-after-free issue is that a GPIO line event is being generated for userspace where it shouldn't. However, since the chrdev is being closed, userspace won't have the chance to read that event anyway. To fix the issue, call the bitmap_free() function after the unregistration of lineinfo_changed_nb notifier chain. Fixes: 51c1064e82e7 ("gpiolib: add new ioctl() for monitoring changes in line info") Signed-off-by: Zhongqiu Han <quic_zhonhan(a)quicinc.com> Link: https://lore.kernel.org/r/20240505141156.2944912-1-quic_zhonhan@quicinc.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/gpio/gpiolib-cdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 84125e55de10..ebf5b8ef3b5d 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -2816,11 +2816,11 @@ static int gpio_chrdev_release(struct inode *inode, struct file *file) struct gpio_chardev_data *cdev = file->private_data; struct gpio_device *gdev = cdev->gdev; - bitmap_free(cdev->watched_lines); blocking_notifier_chain_unregister(&gdev->device_notifier, &cdev->device_unregistered_nb); blocking_notifier_chain_unregister(&gdev->line_state_notifier, &cdev->lineinfo_changed_nb); + bitmap_free(cdev->watched_lines); gpio_device_put(gdev); kfree(cdev); -- 2.25.1

2 1

[PATCH OLK-6.6 v2] bpf, skmsg: Fix NULL pointer dereference in sk_psock_skb_ingress_enqueue
by Liu Jian 11 Jun '24

11 Jun '24

From: Jason Xing <kernelxing(a)tencent.com> stable inclusion from stable-v6.6.31 commit b397a0ab8582c533ec0c6b732392f141fc364f87 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U1UZ CVE: CVE-2024-36938 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 6648e613226e18897231ab5e42ffc29e63fa3365 ] Fix NULL pointer data-races in sk_psock_skb_ingress_enqueue() which syzbot reported [1]. [1] BUG: KCSAN: data-race in sk_psock_drop / sk_psock_skb_ingress_enqueue write to 0xffff88814b3278b8 of 8 bytes by task 10724 on cpu 1: sk_psock_stop_verdict net/core/skmsg.c:1257 [inline] sk_psock_drop+0x13e/0x1f0 net/core/skmsg.c:843 sk_psock_put include/linux/skmsg.h:459 [inline] sock_map_close+0x1a7/0x260 net/core/sock_map.c:1648 unix_release+0x4b/0x80 net/unix/af_unix.c:1048 __sock_release net/socket.c:659 [inline] sock_close+0x68/0x150 net/socket.c:1421 __fput+0x2c1/0x660 fs/file_table.c:422 __fput_sync+0x44/0x60 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close+0x101/0x1b0 fs/open.c:1541 __x64_sys_close+0x1f/0x30 fs/open.c:1541 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 read to 0xffff88814b3278b8 of 8 bytes by task 10713 on cpu 0: sk_psock_data_ready include/linux/skmsg.h:464 [inline] sk_psock_skb_ingress_enqueue+0x32d/0x390 net/core/skmsg.c:555 sk_psock_skb_ingress_self+0x185/0x1e0 net/core/skmsg.c:606 sk_psock_verdict_apply net/core/skmsg.c:1008 [inline] sk_psock_verdict_recv+0x3e4/0x4a0 net/core/skmsg.c:1202 unix_read_skb net/unix/af_unix.c:2546 [inline] unix_stream_read_skb+0x9e/0xf0 net/unix/af_unix.c:2682 sk_psock_verdict_data_ready+0x77/0x220 net/core/skmsg.c:1223 unix_stream_sendmsg+0x527/0x860 net/unix/af_unix.c:2339 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:745 ____sys_sendmsg+0x312/0x410 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x1e9/0x280 net/socket.c:2667 __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2674 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 value changed: 0xffffffff83d7feb0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10713 Comm: syz-executor.4 Tainted: G W 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Prior to this, commit 4cd12c6065df ("bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()") fixed one NULL pointer similarly due to no protection of saved_data_ready. Here is another different caller causing the same issue because of the same reason. So we should protect it with sk_callback_lock read lock because the writer side in the sk_psock_drop() uses "write_lock_bh(&sk->sk_callback_lock);". To avoid errors that could happen in future, I move those two pairs of lock into the sk_psock_data_ready(), which is suggested by John Fastabend. Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface") Reported-by: syzbot+aa8c8ec2538929f18f2d(a)syzkaller.appspotmail.com Signed-off-by: Jason Xing <kernelxing(a)tencent.com> Signed-off-by: Daniel Borkmann <daniel(a)iogearbox.net> Reviewed-by: John Fastabend <john.fastabend(a)gmail.com> Closes: https://syzkaller.appspot.com/bug?extid=aa8c8ec2538929f18f2d Link: https://lore.kernel.org/all/20240329134037.92124-1-kerneljasonxing@gmail.com Link: https://lore.kernel.org/bpf/20240404021001.94815-1-kerneljasonxing@gmail.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- v2: update cve id. include/linux/skmsg.h | 2 ++ net/core/skmsg.c | 5 +---- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index f69af3de0da0..fdedb7a29c0e 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -467,10 +467,12 @@ static inline void sk_psock_put(struct sock *sk, struct sk_psock *psock) static inline void sk_psock_data_ready(struct sock *sk, struct sk_psock *psock) { + read_lock_bh(&sk->sk_callback_lock); if (psock->saved_data_ready) psock->saved_data_ready(sk); else sk->sk_data_ready(sk); + read_unlock_bh(&sk->sk_callback_lock); } static inline void psock_set_prog(struct bpf_prog **pprog, diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 6f774de8f6b2..f2e7ce81fef0 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -1234,11 +1234,8 @@ static void sk_psock_verdict_data_ready(struct sock *sk) rcu_read_lock(); psock = sk_psock(sk); - if (psock) { - read_lock_bh(&sk->sk_callback_lock); + if (psock) sk_psock_data_ready(sk, psock); - read_unlock_bh(&sk->sk_callback_lock); - } rcu_read_unlock(); } } -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] net: fix out-of-bounds access in ops_init
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> stable inclusion from stable-v4.19.314 commit 3cdc34d76c4f777579e28ad373979d36c030cfd3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TMCC CVE: CVE-2024-36883 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a26ff37e624d12e28077e5b24d2b264f62764ad6 upstream. net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Fixes: 073862ba5d24 ("netns: fix net_alloc_generic()") Reviewed-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20240502132006.3430840-1-cascardo@igalia.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/core/net_namespace.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 975cf8cebc34..94dc7e99e200 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -63,12 +63,15 @@ static unsigned int max_gen_ptrs = INITIAL_NET_GEN_PTRS; static struct net_generic *net_alloc_generic(void) { + unsigned int gen_ptrs = READ_ONCE(max_gen_ptrs); + unsigned int generic_size; struct net_generic *ng; - unsigned int generic_size = offsetof(struct net_generic, ptr[max_gen_ptrs]); + + generic_size = offsetof(struct net_generic, ptr[gen_ptrs]); ng = kzalloc(generic_size, GFP_KERNEL); if (ng) - ng->s.len = max_gen_ptrs; + ng->s.len = gen_ptrs; return ng; } @@ -1018,7 +1021,11 @@ static int register_pernet_operations(struct list_head *list, if (error < 0) return error; *ops->id = error; - max_gen_ptrs = max(max_gen_ptrs, *ops->id + 1); + /* This does not require READ_ONCE as writers already hold + * pernet_ops_rwsem. But WRITE_ONCE is needed to protect + * net_alloc_generic. + */ + WRITE_ONCE(max_gen_ptrs, max(max_gen_ptrs, *ops->id + 1)); } error = __register_pernet_operations(list, ops); if (error) { -- 2.34.1

2 1

[PATCH OLK-5.10] cvm: enhance security for cvm host feature
by Ju Fu 11 Jun '24

11 Jun '24

virtcca inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9TM0T -------------------------------- enhance security for cvm host feature Signed-off-by: Ju Fu <fuju1(a)huawei.com> --- arch/arm64/include/asm/kvm_emulate.h | 4 ++- arch/arm64/include/asm/kvm_tmi.h | 34 ++------------------ arch/arm64/include/asm/kvm_tmm.h | 2 +- arch/arm64/kvm/cvm.c | 48 ++++++++++++++++++++++++---- drivers/irqchip/irq-gic-v3-its.c | 2 +- 5 files changed, 49 insertions(+), 41 deletions(-) diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 540563623..1271df56c 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -571,7 +571,9 @@ static inline enum cvm_state kvm_cvm_state(struct kvm *kvm) { struct cvm *cvm = kvm->arch.cvm; - return cvm && READ_ONCE(cvm->state); + if (!cvm) + return 0; + return READ_ONCE(cvm->state); } #endif #endif /* __ARM64_KVM_EMULATE_H__ */ diff --git a/arch/arm64/include/asm/kvm_tmi.h b/arch/arm64/include/asm/kvm_tmi.h index 536594017..b89680f31 100644 --- a/arch/arm64/include/asm/kvm_tmi.h +++ b/arch/arm64/include/asm/kvm_tmi.h @@ -18,22 +18,6 @@ #define TMM_TTT_LEVEL_2 2 #define TMM_TTT_LEVEL_3 3 -#ifdef CONFIG_CVM_HOST_FVP_PLAT -#define CVM_MEM_BASE ULL(0x8800000000) /* choose FVP platform to run cVM */ -#define VQ_NUM 3 -#else -#define CVM_MEM_BASE ULL(0x800000000) /* choose qemu platform to run cVM */ -#define VQ_NUM 3 -#endif - -#define MEM_SEG_NUMS 2 - -/* define in QEMU hw/arm/virt.c */ -#define VIRT_PCIE_MMIO 0x10000000 /* 256MB */ -#define VIRT_PCIE_MMIO_SIZE 0x1000000 /* 16MB */ -#define VIRT_HIGH_PCIE_ECAM 0x8000000000 /* 512GB */ -#define VIRT_HIGH_PCIE_ECAM_SIZE 0x12000000 /* 288MB */ - /* TMI error codes. */ #define TMI_SUCCESS 0 #define TMI_ERROR_INPUT 1 @@ -214,6 +198,8 @@ struct tmi_tec_run { #define TMI_NO_MEASURE_CONTENT U(0) #define TMI_MEASURE_CONTENT U(1) +#define CVM_IPA_MAX_VAL (1UL << 48) + /* * SMC_TMM_INIT_COMPLETE is the only function in the TMI that originates from * the CVM world and is handled by the SPMD. The remaining functions are @@ -264,7 +250,7 @@ struct tmi_tec_run { #define TMI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) #define TMI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF) -#define TMI_ABI_VERSION_MAJOR U(0x0) +#define TMI_ABI_VERSION_MAJOR U(0x1) /* KVM_CAP_ARM_TMM on VM fd */ #define KVM_CAP_ARM_TMM_CONFIG_CVM_HOST 0 @@ -330,20 +316,6 @@ struct kvm_cap_arm_tmm_populate_region_args { __u32 reserved[3]; }; -enum tmi_tmm_mem_type { - TMM_MEM_TYPE_RD, - TMM_MEM_TYPE_TEC, - TMM_MEM_TYPE_TTT, - TMM_MEM_TYPE_CVM_PA, -}; - -enum tmi_tmm_map_size { - TMM_MEM_MAP_SIZE_4K, - TMM_MEM_MAP_SIZE_2M, - TMM_MEM_MAP_SIZE_1G, - TMM_MEM_MAP_SIZE_MAX, -}; - static inline bool tmm_is_addr_ttt_level_aligned(uint64_t addr, int level) { uint64_t mask = (1 << (12 + 9 * (3 - level))) - 1; diff --git a/arch/arm64/include/asm/kvm_tmm.h b/arch/arm64/include/asm/kvm_tmm.h index 88fa0873c..8cc7a35c9 100644 --- a/arch/arm64/include/asm/kvm_tmm.h +++ b/arch/arm64/include/asm/kvm_tmm.h @@ -8,7 +8,7 @@ #include <uapi/linux/kvm.h> enum cvm_state { - CVM_STATE_NONE, + CVM_STATE_NONE = 1, CVM_STATE_NEW, CVM_STATE_ACTIVE, CVM_STATE_DYING diff --git a/arch/arm64/kvm/cvm.c b/arch/arm64/kvm/cvm.c index 70521fec8..e91178945 100644 --- a/arch/arm64/kvm/cvm.c +++ b/arch/arm64/kvm/cvm.c @@ -181,8 +181,9 @@ int kvm_arm_create_cvm(struct kvm *kvm) memcpy(cvm->params->rpv, &cvm->cvm_vmid, sizeof(cvm->cvm_vmid)); cvm->rd = tmi_cvm_create(__pa(cvm->params), numa_set); if (!cvm->rd) { - kvm_err("KVM creates cVM: %d\n", cvm->cvm_vmid); + kvm_err("KVM creates cVM failed: %d\n", cvm->cvm_vmid); ret = -ENOMEM; + goto out; } WRITE_ONCE(cvm->state, CVM_STATE_NEW); @@ -341,7 +342,7 @@ int kvm_cvm_populate_par_region(struct kvm *kvm, u64 numa_set, */ ipa = ALIGN_DOWN(ipa, map_size); - if (is_data_create_region(ipa_base, args)) { + if (is_data_create_region(ipa, args)) { pfn = gfn_to_pfn_memslot(memslot, gpa_to_gfn(ipa)); if (is_error_pfn(pfn)) { ret = -EFAULT; @@ -602,6 +603,7 @@ static int kvm_populate_ram_region(struct kvm *kvm, u64 map_size, static int kvm_populate_ipa_cvm_range(struct kvm *kvm, struct kvm_cap_arm_tmm_populate_region_args *args) { + struct cvm *cvm = (struct cvm *)kvm->arch.cvm; u64 l2_granule = cvm_granule_size(TMM_TTT_LEVEL_2); phys_addr_t ipa_base1, ipa_end2; @@ -612,7 +614,10 @@ static int kvm_populate_ipa_cvm_range(struct kvm *kvm, !IS_ALIGNED(args->populate_ipa_base2, PAGE_SIZE) || !IS_ALIGNED(args->populate_ipa_size2, PAGE_SIZE)) return -EINVAL; - if (args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1) + + if (args->populate_ipa_base1 < cvm->loader_start || + args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1 || + cvm->dtb_end < args->populate_ipa_base2 + args->populate_ipa_size2) return -EINVAL; if (args->flags & ~TMI_MEASURE_CONTENT) @@ -755,6 +760,26 @@ int kvm_init_tmm(void) return 0; } +bool is_numa_ipa_range_valid(struct kvm_numa_info *numa_info) +{ + unsigned long i; + struct kvm_numa_node *numa_node, *prev_numa_node; + + prev_numa_node = NULL; + for (i = 0; i < numa_info->numa_cnt; i++) { + numa_node = &numa_info->numa_nodes[i]; + if (numa_node->ipa_start + numa_node->ipa_size < numa_node->ipa_start) + return false; + if (prev_numa_node && + numa_node->ipa_start < prev_numa_node->ipa_start + prev_numa_node->ipa_size) + return false; + prev_numa_node = numa_node; + } + if (numa_node->ipa_start + numa_node->ipa_size > CVM_IPA_MAX_VAL) + return false; + return true; +} + int kvm_load_user_data(struct kvm *kvm, unsigned long arg) { struct kvm_user_data user_data; @@ -766,26 +791,34 @@ int kvm_load_user_data(struct kvm *kvm, unsigned long arg) return -EFAULT; if (copy_from_user(&user_data, argp, sizeof(user_data))) - return -EFAULT; + return -EINVAL; numa_info = &user_data.numa_info; if (numa_info->numa_cnt > MAX_NUMA_NODE) - return -EFAULT; + return -EINVAL; if (numa_info->numa_cnt > 0) { unsigned long i, total_size = 0; struct kvm_numa_node *numa_node = &numa_info->numa_nodes[0]; unsigned long ipa_end = numa_node->ipa_start + numa_node->ipa_size; + if (!is_numa_ipa_range_valid(numa_info)) + return -EINVAL; if (user_data.loader_start < numa_node->ipa_start || user_data.dtb_end > ipa_end) - return -EFAULT; + return -EINVAL; for (i = 0; i < numa_info->numa_cnt; i++) total_size += numa_info->numa_nodes[i].ipa_size; if (total_size != user_data.ram_size) - return -EFAULT; + return -EINVAL; } + if (user_data.image_end <= user_data.loader_start || + user_data.initrd_start < user_data.image_end || + user_data.dtb_end < user_data.initrd_start || + user_data.ram_size < user_data.dtb_end - user_data.loader_start) + return -EINVAL; + cvm->loader_start = user_data.loader_start; cvm->image_end = user_data.image_end; cvm->initrd_start = user_data.initrd_start; @@ -871,6 +904,7 @@ int kvm_init_cvm_vm(struct kvm *kvm) return -ENOMEM; cvm->params = params; + WRITE_ONCE(cvm->state, CVM_STATE_NONE); return 0; } diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 2c2f23f35..153930d01 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2905,7 +2905,7 @@ static void its_free_tables(struct its_node *its) for (i = 0; i < GITS_BASER_NR_REGS; i++) { if (its->tables[i].base) { #ifdef CONFIG_CVM_GUEST - if (!is_cvm_world()) + if (is_cvm_world()) its_free_shared_pages(its->tables[i].base, its->tables[i].order); else -- 2.25.1.windows.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: fix out-of-bounds access in ops_init
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> stable inclusion from stable-v5.10.217 commit 0c3248bc708a7797be573214065cf908ff1f54c7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TMCC CVE: CVE-2024-36883 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a26ff37e624d12e28077e5b24d2b264f62764ad6 upstream. net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Fixes: 073862ba5d24 ("netns: fix net_alloc_generic()") Reviewed-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20240502132006.3430840-1-cascardo@igalia.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/core/net_namespace.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index cbff7d94b993..15995cbe6b74 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -86,12 +86,15 @@ u64 __net_gen_cookie(struct net *net) static struct net_generic *net_alloc_generic(void) { + unsigned int gen_ptrs = READ_ONCE(max_gen_ptrs); + unsigned int generic_size; struct net_generic *ng; - unsigned int generic_size = offsetof(struct net_generic, ptr[max_gen_ptrs]); + + generic_size = offsetof(struct net_generic, ptr[gen_ptrs]); ng = kzalloc(generic_size, GFP_KERNEL); if (ng) - ng->s.len = max_gen_ptrs; + ng->s.len = gen_ptrs; return ng; } @@ -1234,7 +1237,11 @@ static int register_pernet_operations(struct list_head *list, if (error < 0) return error; *ops->id = error; - max_gen_ptrs = max(max_gen_ptrs, *ops->id + 1); + /* This does not require READ_ONCE as writers already hold + * pernet_ops_rwsem. But WRITE_ONCE is needed to protect + * net_alloc_generic. + */ + WRITE_ONCE(max_gen_ptrs, max(max_gen_ptrs, *ops->id + 1)); } error = __register_pernet_operations(list, ops); if (error) { -- 2.34.1

2 1

[PATCH OLK-5.10] net: fix out-of-bounds access in ops_init
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> stable inclusion from stable-v5.10.217 commit 0c3248bc708a7797be573214065cf908ff1f54c7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TMCC CVE: CVE-2024-36883 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a26ff37e624d12e28077e5b24d2b264f62764ad6 upstream. net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Fixes: 073862ba5d24 ("netns: fix net_alloc_generic()") Reviewed-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20240502132006.3430840-1-cascardo@igalia.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/core/net_namespace.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 20a0fc4d059b..cd867cb408c9 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -74,12 +74,15 @@ DEFINE_COOKIE(net_cookie); static struct net_generic *net_alloc_generic(void) { + unsigned int gen_ptrs = READ_ONCE(max_gen_ptrs); + unsigned int generic_size; struct net_generic *ng; - unsigned int generic_size = offsetof(struct net_generic, ptr[max_gen_ptrs]); + + generic_size = offsetof(struct net_generic, ptr[gen_ptrs]); ng = kzalloc(generic_size, GFP_KERNEL); if (ng) - ng->s.len = max_gen_ptrs; + ng->s.len = gen_ptrs; return ng; } @@ -1228,7 +1231,11 @@ static int register_pernet_operations(struct list_head *list, if (error < 0) return error; *ops->id = error; - max_gen_ptrs = max(max_gen_ptrs, *ops->id + 1); + /* This does not require READ_ONCE as writers already hold + * pernet_ops_rwsem. But WRITE_ONCE is needed to protect + * net_alloc_generic. + */ + WRITE_ONCE(max_gen_ptrs, max(max_gen_ptrs, *ops->id + 1)); } error = __register_pernet_operations(list, ops); if (error) { -- 2.34.1

2 1

[PATCH OLK-6.6] net: fix out-of-bounds access in ops_init
by Zhengchao Shao 11 Jun '24

11 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> stable inclusion from stable-v6.6.31 commit b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TMCC CVE: CVE-2024-36883 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a26ff37e624d12e28077e5b24d2b264f62764ad6 upstream. net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Fixes: 073862ba5d24 ("netns: fix net_alloc_generic()") Reviewed-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20240502132006.3430840-1-cascardo@igalia.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/core/net_namespace.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index f4183c4c1ec8..ebea4fa69976 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -69,12 +69,15 @@ DEFINE_COOKIE(net_cookie); static struct net_generic *net_alloc_generic(void) { + unsigned int gen_ptrs = READ_ONCE(max_gen_ptrs); + unsigned int generic_size; struct net_generic *ng; - unsigned int generic_size = offsetof(struct net_generic, ptr[max_gen_ptrs]); + + generic_size = offsetof(struct net_generic, ptr[gen_ptrs]); ng = kzalloc(generic_size, GFP_KERNEL); if (ng) - ng->s.len = max_gen_ptrs; + ng->s.len = gen_ptrs; return ng; } @@ -1229,7 +1232,11 @@ static int register_pernet_operations(struct list_head *list, if (error < 0) return error; *ops->id = error; - max_gen_ptrs = max(max_gen_ptrs, *ops->id + 1); + /* This does not require READ_ONCE as writers already hold + * pernet_ops_rwsem. But WRITE_ONCE is needed to protect + * net_alloc_generic. + */ + WRITE_ONCE(max_gen_ptrs, max(max_gen_ptrs, *ops->id + 1)); } error = __register_pernet_operations(list, ops); if (error) { -- 2.34.1

2 1

[openeuler:openEuler-1.0-LTS 18534/22827] drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed.
by kernel test robot 10 Jun '24

10 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 6a98543755cf2f636ae3169f3774d226d328d2cf commit: b8815fbbe89b0d15fa3296c3e57d2197a92f5bc0 [18534/22827] ACPI: CPPC: Fix cppc_cpufreq_init failed in CPU Hotplug situation config: x86_64-randconfig-103-20240609 (https://download.01.org/0day-ci/archive/20240610/202406100658.RXAKSKac-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406100658.RXAKSKac-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed. vim +614 drivers/acpi/cppc_acpi.c 576 577 int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data) 578 { 579 struct cpc_desc **cpc_pptr, *cpc_ptr; 580 int parsed_core_num = 0; 581 int i, ret; 582 583 cpc_pptr = kcalloc(num_possible_cpus(), sizeof(void *), GFP_KERNEL); 584 if (!cpc_pptr) 585 return -ENOMEM; 586 for_each_possible_cpu(i) { 587 cpc_pptr[i] = kzalloc(sizeof(struct cpc_desc), GFP_KERNEL); 588 if (!cpc_pptr[i]) { 589 ret = -ENOMEM; 590 goto out; 591 } 592 } 593 594 /* 595 * We can not use acpi_get_devices() to walk the processor devices 596 * because some processor device is not present. 597 */ 598 ret = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 599 ACPI_UINT32_MAX, acpi_parse_cpc, NULL, 600 cpc_pptr, (void **)&parsed_core_num); 601 if (ret) 602 goto out; 603 if (parsed_core_num != num_possible_cpus()) { 604 ret = -EINVAL; 605 goto out; 606 } 607 608 ret = __acpi_get_psd_map(all_cpu_data, cpc_pptr); 609 610 out: 611 for_each_possible_cpu(i) { 612 cpc_ptr = cpc_pptr[i]; 613 if (cpc_ptr) > 614 kfree(cpc_ptr); 615 } 616 kfree(cpc_pptr); 617 618 return ret; 619 } 620 EXPORT_SYMBOL_GPL(acpi_get_psd_map); 621 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v6.6.31 commit 696d18bb59727a2e0526c0802a812620be1c9340 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U8MH CVE: CVE-2024-36933 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4b911a9690d72641879ea6d13cce1de31d346d79 ] syzbot triggered various splats (see [0] and links) by a crafted GSO packet of VIRTIO_NET_HDR_GSO_UDP layering the following protocols: ETH_P_8021AD + ETH_P_NSH + ETH_P_IPV6 + IPPROTO_UDP NSH can encapsulate IPv4, IPv6, Ethernet, NSH, and MPLS. As the inner protocol can be Ethernet, NSH GSO handler, nsh_gso_segment(), calls skb_mac_gso_segment() to invoke inner protocol GSO handlers. nsh_gso_segment() does the following for the original skb before calling skb_mac_gso_segment() 1. reset skb->network_header 2. save the original skb->{mac_heaeder,mac_len} in a local variable 3. pull the NSH header 4. resets skb->mac_header 5. set up skb->mac_len and skb->protocol for the inner protocol. and does the following for the segmented skb 6. set ntohs(ETH_P_NSH) to skb->protocol 7. push the NSH header 8. restore skb->mac_header 9. set skb->mac_header + mac_len to skb->network_header 10. restore skb->mac_len There are two problems in 6-7 and 8-9. (a) After 6 & 7, skb->data points to the NSH header, so the outer header (ETH_P_8021AD in this case) is stripped when skb is sent out of netdev. Also, if NSH is encapsulated by NSH + Ethernet (so NSH-Ethernet-NSH), skb_pull() in the first nsh_gso_segment() will make skb->data point to the middle of the outer NSH or Ethernet header because the Ethernet header is not pulled by the second nsh_gso_segment(). (b) While restoring skb->{mac_header,network_header} in 8 & 9, nsh_gso_segment() does not assume that the data in the linear buffer is shifted. However, udp6_ufo_fragment() could shift the data and change skb->mac_header accordingly as demonstrated by syzbot. If this happens, even the restored skb->mac_header points to the middle of the outer header. It seems nsh_gso_segment() has never worked with outer headers so far. At the end of nsh_gso_segment(), the outer header must be restored for the segmented skb, instead of the NSH header. To do that, let's calculate the outer header position relatively from the inner header and set skb->{data,mac_header,protocol} properly. [0]: BUG: KMSAN: uninit-value in ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] BUG: KMSAN: uninit-value in ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] BUG: KMSAN: uninit-value in ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_start_xmit+0x5c/0x1a0 drivers/net/ipvlan/ipvlan_main.c:222 __netdev_start_xmit include/linux/netdevice.h:4989 [inline] netdev_start_xmit include/linux/netdevice.h:5003 [inline] xmit_one net/core/dev.c:3547 [inline] dev_hard_start_xmit+0x244/0xa10 net/core/dev.c:3563 __dev_queue_xmit+0x33ed/0x51c0 net/core/dev.c:4351 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook mm/slub.c:3819 [inline] slab_alloc_node mm/slub.c:3860 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc_node_track_caller+0x705/0x1000 mm/slub.c:4001 kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582 __alloc_skb+0x352/0x790 net/core/skbuff.c:651 skb_segment+0x20aa/0x7080 net/core/skbuff.c:4647 udp6_ufo_fragment+0xcab/0x1150 net/ipv6/udp_offload.c:109 ipv6_gso_segment+0x14be/0x2ca0 net/ipv6/ip6_offload.c:152 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 nsh_gso_segment+0x6f4/0xf70 net/nsh/nsh.c:108 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 __skb_gso_segment+0x4b0/0x730 net/core/gso.c:124 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x107f/0x1930 net/core/dev.c:3628 __dev_queue_xmit+0x1f28/0x51c0 net/core/dev.c:4343 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5101 Comm: syz-executor421 Not tainted 6.8.0-rc5-syzkaller-00297-gf2e367d6ad3b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Fixes: c411ed854584 ("nsh: add GSO support") Reported-and-tested-by: syzbot+42a0dc856239de4de60e(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=42a0dc856239de4de60e Reported-and-tested-by: syzbot+c298c9f0e46a3c86332b(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c298c9f0e46a3c86332b Link: https://lore.kernel.org/netdev/20240415222041.18537-1-kuniyu@amazon.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240424023549.21862-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/nsh/nsh.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/nsh/nsh.c b/net/nsh/nsh.c index f4a38bd6a7e04..bfb7758063f31 100644 --- a/net/nsh/nsh.c +++ b/net/nsh/nsh.c @@ -77,13 +77,15 @@ EXPORT_SYMBOL_GPL(nsh_pop); static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, netdev_features_t features) { + unsigned int outer_hlen, mac_len, nsh_len; struct sk_buff *segs = ERR_PTR(-EINVAL); u16 mac_offset = skb->mac_header; - unsigned int nsh_len, mac_len; - __be16 proto; + __be16 outer_proto, proto; skb_reset_network_header(skb); + outer_proto = skb->protocol; + outer_hlen = skb_mac_header_len(skb); mac_len = skb->mac_len; if (unlikely(!pskb_may_pull(skb, NSH_BASE_HDR_LEN))) @@ -113,10 +115,10 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, } for (skb = segs; skb; skb = skb->next) { - skb->protocol = htons(ETH_P_NSH); - __skb_push(skb, nsh_len); - skb->mac_header = mac_offset; - skb->network_header = skb->mac_header + mac_len; + skb->protocol = outer_proto; + __skb_push(skb, nsh_len + outer_hlen); + skb_reset_mac_header(skb); + skb_set_network_header(skb, outer_hlen); skb->mac_len = mac_len; } -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v4.19.314 commit a7c2c3c1caabcb4a3d6c47284c397507aaf54fe9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U8MH CVE: CVE-2024-36933 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4b911a9690d72641879ea6d13cce1de31d346d79 ] syzbot triggered various splats (see [0] and links) by a crafted GSO packet of VIRTIO_NET_HDR_GSO_UDP layering the following protocols: ETH_P_8021AD + ETH_P_NSH + ETH_P_IPV6 + IPPROTO_UDP NSH can encapsulate IPv4, IPv6, Ethernet, NSH, and MPLS. As the inner protocol can be Ethernet, NSH GSO handler, nsh_gso_segment(), calls skb_mac_gso_segment() to invoke inner protocol GSO handlers. nsh_gso_segment() does the following for the original skb before calling skb_mac_gso_segment() 1. reset skb->network_header 2. save the original skb->{mac_heaeder,mac_len} in a local variable 3. pull the NSH header 4. resets skb->mac_header 5. set up skb->mac_len and skb->protocol for the inner protocol. and does the following for the segmented skb 6. set ntohs(ETH_P_NSH) to skb->protocol 7. push the NSH header 8. restore skb->mac_header 9. set skb->mac_header + mac_len to skb->network_header 10. restore skb->mac_len There are two problems in 6-7 and 8-9. (a) After 6 & 7, skb->data points to the NSH header, so the outer header (ETH_P_8021AD in this case) is stripped when skb is sent out of netdev. Also, if NSH is encapsulated by NSH + Ethernet (so NSH-Ethernet-NSH), skb_pull() in the first nsh_gso_segment() will make skb->data point to the middle of the outer NSH or Ethernet header because the Ethernet header is not pulled by the second nsh_gso_segment(). (b) While restoring skb->{mac_header,network_header} in 8 & 9, nsh_gso_segment() does not assume that the data in the linear buffer is shifted. However, udp6_ufo_fragment() could shift the data and change skb->mac_header accordingly as demonstrated by syzbot. If this happens, even the restored skb->mac_header points to the middle of the outer header. It seems nsh_gso_segment() has never worked with outer headers so far. At the end of nsh_gso_segment(), the outer header must be restored for the segmented skb, instead of the NSH header. To do that, let's calculate the outer header position relatively from the inner header and set skb->{data,mac_header,protocol} properly. [0]: BUG: KMSAN: uninit-value in ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] BUG: KMSAN: uninit-value in ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] BUG: KMSAN: uninit-value in ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_start_xmit+0x5c/0x1a0 drivers/net/ipvlan/ipvlan_main.c:222 __netdev_start_xmit include/linux/netdevice.h:4989 [inline] netdev_start_xmit include/linux/netdevice.h:5003 [inline] xmit_one net/core/dev.c:3547 [inline] dev_hard_start_xmit+0x244/0xa10 net/core/dev.c:3563 __dev_queue_xmit+0x33ed/0x51c0 net/core/dev.c:4351 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook mm/slub.c:3819 [inline] slab_alloc_node mm/slub.c:3860 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc_node_track_caller+0x705/0x1000 mm/slub.c:4001 kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582 __alloc_skb+0x352/0x790 net/core/skbuff.c:651 skb_segment+0x20aa/0x7080 net/core/skbuff.c:4647 udp6_ufo_fragment+0xcab/0x1150 net/ipv6/udp_offload.c:109 ipv6_gso_segment+0x14be/0x2ca0 net/ipv6/ip6_offload.c:152 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 nsh_gso_segment+0x6f4/0xf70 net/nsh/nsh.c:108 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 __skb_gso_segment+0x4b0/0x730 net/core/gso.c:124 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x107f/0x1930 net/core/dev.c:3628 __dev_queue_xmit+0x1f28/0x51c0 net/core/dev.c:4343 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5101 Comm: syz-executor421 Not tainted 6.8.0-rc5-syzkaller-00297-gf2e367d6ad3b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Fixes: c411ed854584 ("nsh: add GSO support") Reported-and-tested-by: syzbot+42a0dc856239de4de60e(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=42a0dc856239de4de60e Reported-and-tested-by: syzbot+c298c9f0e46a3c86332b(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c298c9f0e46a3c86332b Link: https://lore.kernel.org/netdev/20240415222041.18537-1-kuniyu@amazon.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240424023549.21862-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/nsh/nsh.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/nsh/nsh.c b/net/nsh/nsh.c index a5fa25555d7eb..a2285b050f6aa 100644 --- a/net/nsh/nsh.c +++ b/net/nsh/nsh.c @@ -79,13 +79,15 @@ EXPORT_SYMBOL_GPL(nsh_pop); static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, netdev_features_t features) { + unsigned int outer_hlen, mac_len, nsh_len; struct sk_buff *segs = ERR_PTR(-EINVAL); u16 mac_offset = skb->mac_header; - unsigned int nsh_len, mac_len; - __be16 proto; + __be16 outer_proto, proto; skb_reset_network_header(skb); + outer_proto = skb->protocol; + outer_hlen = skb_mac_header_len(skb); mac_len = skb->mac_len; if (unlikely(!pskb_may_pull(skb, NSH_BASE_HDR_LEN))) @@ -115,10 +117,10 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, } for (skb = segs; skb; skb = skb->next) { - skb->protocol = htons(ETH_P_NSH); - __skb_push(skb, nsh_len); - skb->mac_header = mac_offset; - skb->network_header = skb->mac_header + mac_len; + skb->protocol = outer_proto; + __skb_push(skb, nsh_len + outer_hlen); + skb_reset_mac_header(skb); + skb_set_network_header(skb, outer_hlen); skb->mac_len = mac_len; } -- 2.25.1

2 1

[PATCH OLK-5.10] nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v5.10.217 commit bbccf0caef2fa917d6d0692385a06ce3c262a216 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U8MH CVE: CVE-2024-36933 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4b911a9690d72641879ea6d13cce1de31d346d79 ] syzbot triggered various splats (see [0] and links) by a crafted GSO packet of VIRTIO_NET_HDR_GSO_UDP layering the following protocols: ETH_P_8021AD + ETH_P_NSH + ETH_P_IPV6 + IPPROTO_UDP NSH can encapsulate IPv4, IPv6, Ethernet, NSH, and MPLS. As the inner protocol can be Ethernet, NSH GSO handler, nsh_gso_segment(), calls skb_mac_gso_segment() to invoke inner protocol GSO handlers. nsh_gso_segment() does the following for the original skb before calling skb_mac_gso_segment() 1. reset skb->network_header 2. save the original skb->{mac_heaeder,mac_len} in a local variable 3. pull the NSH header 4. resets skb->mac_header 5. set up skb->mac_len and skb->protocol for the inner protocol. and does the following for the segmented skb 6. set ntohs(ETH_P_NSH) to skb->protocol 7. push the NSH header 8. restore skb->mac_header 9. set skb->mac_header + mac_len to skb->network_header 10. restore skb->mac_len There are two problems in 6-7 and 8-9. (a) After 6 & 7, skb->data points to the NSH header, so the outer header (ETH_P_8021AD in this case) is stripped when skb is sent out of netdev. Also, if NSH is encapsulated by NSH + Ethernet (so NSH-Ethernet-NSH), skb_pull() in the first nsh_gso_segment() will make skb->data point to the middle of the outer NSH or Ethernet header because the Ethernet header is not pulled by the second nsh_gso_segment(). (b) While restoring skb->{mac_header,network_header} in 8 & 9, nsh_gso_segment() does not assume that the data in the linear buffer is shifted. However, udp6_ufo_fragment() could shift the data and change skb->mac_header accordingly as demonstrated by syzbot. If this happens, even the restored skb->mac_header points to the middle of the outer header. It seems nsh_gso_segment() has never worked with outer headers so far. At the end of nsh_gso_segment(), the outer header must be restored for the segmented skb, instead of the NSH header. To do that, let's calculate the outer header position relatively from the inner header and set skb->{data,mac_header,protocol} properly. [0]: BUG: KMSAN: uninit-value in ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] BUG: KMSAN: uninit-value in ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] BUG: KMSAN: uninit-value in ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:524 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] ipvlan_queue_xmit+0xf44/0x16b0 drivers/net/ipvlan/ipvlan_core.c:668 ipvlan_start_xmit+0x5c/0x1a0 drivers/net/ipvlan/ipvlan_main.c:222 __netdev_start_xmit include/linux/netdevice.h:4989 [inline] netdev_start_xmit include/linux/netdevice.h:5003 [inline] xmit_one net/core/dev.c:3547 [inline] dev_hard_start_xmit+0x244/0xa10 net/core/dev.c:3563 __dev_queue_xmit+0x33ed/0x51c0 net/core/dev.c:4351 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook mm/slub.c:3819 [inline] slab_alloc_node mm/slub.c:3860 [inline] __do_kmalloc_node mm/slub.c:3980 [inline] __kmalloc_node_track_caller+0x705/0x1000 mm/slub.c:4001 kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582 __alloc_skb+0x352/0x790 net/core/skbuff.c:651 skb_segment+0x20aa/0x7080 net/core/skbuff.c:4647 udp6_ufo_fragment+0xcab/0x1150 net/ipv6/udp_offload.c:109 ipv6_gso_segment+0x14be/0x2ca0 net/ipv6/ip6_offload.c:152 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 nsh_gso_segment+0x6f4/0xf70 net/nsh/nsh.c:108 skb_mac_gso_segment+0x3e8/0x760 net/core/gso.c:53 __skb_gso_segment+0x4b0/0x730 net/core/gso.c:124 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x107f/0x1930 net/core/dev.c:3628 __dev_queue_xmit+0x1f28/0x51c0 net/core/dev.c:4343 dev_queue_xmit include/linux/netdevice.h:3171 [inline] packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3081 [inline] packet_sendmsg+0x8aef/0x9f10 net/packet/af_packet.c:3113 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 5101 Comm: syz-executor421 Not tainted 6.8.0-rc5-syzkaller-00297-gf2e367d6ad3b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Fixes: c411ed854584 ("nsh: add GSO support") Reported-and-tested-by: syzbot+42a0dc856239de4de60e(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=42a0dc856239de4de60e Reported-and-tested-by: syzbot+c298c9f0e46a3c86332b(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c298c9f0e46a3c86332b Link: https://lore.kernel.org/netdev/20240415222041.18537-1-kuniyu@amazon.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240424023549.21862-1-kuniyu@amazon.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/nsh/nsh.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/nsh/nsh.c b/net/nsh/nsh.c index 0f23e5e8e03eb..3e0fc71d95a14 100644 --- a/net/nsh/nsh.c +++ b/net/nsh/nsh.c @@ -76,13 +76,15 @@ EXPORT_SYMBOL_GPL(nsh_pop); static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, netdev_features_t features) { + unsigned int outer_hlen, mac_len, nsh_len; struct sk_buff *segs = ERR_PTR(-EINVAL); u16 mac_offset = skb->mac_header; - unsigned int nsh_len, mac_len; - __be16 proto; + __be16 outer_proto, proto; skb_reset_network_header(skb); + outer_proto = skb->protocol; + outer_hlen = skb_mac_header_len(skb); mac_len = skb->mac_len; if (unlikely(!pskb_may_pull(skb, NSH_BASE_HDR_LEN))) @@ -112,10 +114,10 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb, } for (skb = segs; skb; skb = skb->next) { - skb->protocol = htons(ETH_P_NSH); - __skb_push(skb, nsh_len); - skb->mac_header = mac_offset; - skb->network_header = skb->mac_header + mac_len; + skb->protocol = outer_proto; + __skb_push(skb, nsh_len + outer_hlen); + skb_reset_mac_header(skb); + skb_set_network_header(skb, outer_hlen); skb->mac_len = mac_len; } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/2] CVE-2024-36933
by Ziyang Xuan 09 Jun '24

09 Jun '24

Patchset of CVE-2024-36933. Dong Chenchen (1): net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() Kuniyuki Iwashima (1): nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). net/nsh/nsh.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) -- 2.25.1

2 3

[PATCH OLK-6.6 V1] scsi: lpfc: Move NPIV's transport unregistration to after resource clean up
by Cheng Yu 09 Jun '24

09 Jun '24

From: Justin Tee <justin.tee(a)broadcom.com> mainline inclusion from mainline-v6.9-rc2 commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UMD0 CVE: CVE-2024-36952 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- There are cases after NPIV deletion where the fabric switch still believes the NPIV is logged into the fabric. This occurs when a vport is unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the fabric. Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including the fabric D_ID, removes the last ndlp reference and frees the ndlp rport object. This sometimes causes the race condition where the final DA_ID and LOGO are skipped from being sent to the fabric switch. Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID and LOGO are sent. Signed-off-by: Justin Tee <justin.tee(a)broadcom.com> Link: https://lore.kernel.org/r/20240305200503.57317-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/scsi/lpfc/lpfc_vport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index 6c7559cf1a4b..9e0e9e02d2c4 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -683,10 +683,6 @@ lpfc_vport_delete(struct fc_vport *fc_vport) lpfc_free_sysfs_attr(vport); lpfc_debugfs_terminate(vport); - /* Remove FC host to break driver binding. */ - fc_remove_host(shost); - scsi_remove_host(shost); - /* Send the DA_ID and Fabric LOGO to cleanup Nameserver entries. */ ndlp = lpfc_findnode_did(vport, Fabric_DID); if (!ndlp) @@ -730,6 +726,10 @@ lpfc_vport_delete(struct fc_vport *fc_vport) skip_logo: + /* Remove FC host to break driver binding. */ + fc_remove_host(shost); + scsi_remove_host(shost); + lpfc_cleanup(vport); /* Remove scsi host now. The nodes are cleaned up. */ -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 V1] scsi: lpfc: Move NPIV's transport unregistration to after resource clean up
by Cheng Yu 09 Jun '24

09 Jun '24

From: Justin Tee <justin.tee(a)broadcom.com> mainline inclusion from mainline-v6.9-rc2 commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UMD0 CVE: CVE-2024-36952 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- There are cases after NPIV deletion where the fabric switch still believes the NPIV is logged into the fabric. This occurs when a vport is unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the fabric. Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including the fabric D_ID, removes the last ndlp reference and frees the ndlp rport object. This sometimes causes the race condition where the final DA_ID and LOGO are skipped from being sent to the fabric switch. Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID and LOGO are sent. Signed-off-by: Justin Tee <justin.tee(a)broadcom.com> Link: https://lore.kernel.org/r/20240305200503.57317-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Conflicts: drivers/scsi/lpfc/lpfc_vport.c [There are only context conficts, no code logic conflicts.] Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/scsi/lpfc/lpfc_vport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index aa4e451d5dc1..02871d73a502 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -668,10 +668,6 @@ lpfc_vport_delete(struct fc_vport *fc_vport) ns_ndlp_referenced = true; } - /* Remove FC host and then SCSI host with the vport */ - fc_remove_host(shost); - scsi_remove_host(shost); - ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); /* In case of driver unload, we shall not perform fabric logo as the @@ -774,6 +770,10 @@ lpfc_vport_delete(struct fc_vport *fc_vport) skip_logo: + /* Remove FC host and then SCSI host with the vport */ + fc_remove_host(shost); + scsi_remove_host(shost); + /* * If the NameServer ndlp has been incremented to allow the DA_ID CT * command to be sent, decrement the ndlp now. -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS V1] scsi: lpfc: Move NPIV's transport unregistration to after resource clean up
by Cheng Yu 09 Jun '24

09 Jun '24

From: Justin Tee <justin.tee(a)broadcom.com> mainline inclusion from mainline-v6.9-rc2 commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UMD0 CVE: CVE-2024-36952 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- There are cases after NPIV deletion where the fabric switch still believes the NPIV is logged into the fabric. This occurs when a vport is unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the fabric. Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including the fabric D_ID, removes the last ndlp reference and frees the ndlp rport object. This sometimes causes the race condition where the final DA_ID and LOGO are skipped from being sent to the fabric switch. Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID and LOGO are sent. Signed-off-by: Justin Tee <justin.tee(a)broadcom.com> Link: https://lore.kernel.org/r/20240305200503.57317-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Conflicts: drivers/scsi/lpfc/lpfc_vport.c [There are only context conficts, no code logic conflicts.] Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/scsi/lpfc/lpfc_vport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index 1ff0f7de9105..0b60ae657030 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -690,10 +690,6 @@ lpfc_vport_delete(struct fc_vport *fc_vport) ns_ndlp_referenced = true; } - /* Remove FC host and then SCSI host with the vport */ - fc_remove_host(shost); - scsi_remove_host(shost); - ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); /* In case of driver unload, we shall not perform fabric logo as the @@ -796,6 +792,10 @@ lpfc_vport_delete(struct fc_vport *fc_vport) skip_logo: + /* Remove FC host and then SCSI host with the vport */ + fc_remove_host(shost); + scsi_remove_host(shost); + /* * If the NameServer ndlp has been incremented to allow the DA_ID CT * command to be sent, decrement the ndlp now. -- 2.25.1

2 1

[PATCH OLK-5.10 V1] scsi: lpfc: Move NPIV's transport unregistration to after resource clean up
by Cheng Yu 09 Jun '24

09 Jun '24

From: Justin Tee <justin.tee(a)broadcom.com> mainline inclusion from mainline-v6.9-rc2 commit 4ddf01f2f1504fa08b766e8cfeec558e9f8eef6c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UMD0 CVE: CVE-2024-36952 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- There are cases after NPIV deletion where the fabric switch still believes the NPIV is logged into the fabric. This occurs when a vport is unregistered before the Remove All DA_ID CT and LOGO ELS are sent to the fabric. Currently fc_remove_host(), which calls dev_loss_tmo for all D_IDs including the fabric D_ID, removes the last ndlp reference and frees the ndlp rport object. This sometimes causes the race condition where the final DA_ID and LOGO are skipped from being sent to the fabric switch. Fix by moving the fc_remove_host() and scsi_remove_host() calls after DA_ID and LOGO are sent. Signed-off-by: Justin Tee <justin.tee(a)broadcom.com> Link: https://lore.kernel.org/r/20240305200503.57317-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Conflicts: drivers/scsi/lpfc/lpfc_vport.c [There are only context conficts, no code logic conflicts.] Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/scsi/lpfc/lpfc_vport.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index aa4e451d5dc1..02871d73a502 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -668,10 +668,6 @@ lpfc_vport_delete(struct fc_vport *fc_vport) ns_ndlp_referenced = true; } - /* Remove FC host and then SCSI host with the vport */ - fc_remove_host(shost); - scsi_remove_host(shost); - ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); /* In case of driver unload, we shall not perform fabric logo as the @@ -774,6 +770,10 @@ lpfc_vport_delete(struct fc_vport *fc_vport) skip_logo: + /* Remove FC host and then SCSI host with the vport */ + fc_remove_host(shost); + scsi_remove_host(shost); + /* * If the NameServer ndlp has been incremented to allow the DA_ID CT * command to be sent, decrement the ndlp now. -- 2.25.1

2 1

[PATCH OLK-5.10] cvm_tsi: enhance security for cvm tsi
by Shengjie Li 09 Jun '24

09 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9Q85J -------------------------------- enhance security for Confidential cVM tsi: Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/asm/cvm_smc.h | 22 +++---- arch/arm64/include/uapi/asm/cvm_tsi.h | 11 ++-- arch/arm64/kernel/cvm_tsi.c | 89 ++++++++++++++------------- 3 files changed, 64 insertions(+), 58 deletions(-) diff --git a/arch/arm64/include/asm/cvm_smc.h b/arch/arm64/include/asm/cvm_smc.h index c4d56333e3..91688bc169 100644 --- a/arch/arm64/include/asm/cvm_smc.h +++ b/arch/arm64/include/asm/cvm_smc.h @@ -124,30 +124,30 @@ static inline unsigned long tsi_measurement_read(struct cvm_measurement *cvm_mea return res.a0; } -static inline unsigned long tsi_attestation_token_init(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_init(unsigned char *challenge) { struct arm_smccc_res res; - unsigned char *challenge; + unsigned char *buf; - challenge = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); - if (!challenge) + buf = kmalloc(CHALLENGE_SIZE, GFP_KERNEL); + if (!buf) return -ENOMEM; - memcpy(challenge, attest_cmd->challenge, CHALLENGE_SIZE); + memcpy(buf, challenge, CHALLENGE_SIZE); - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(challenge), &res); - kfree(challenge); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_INIT, virt_to_phys(buf), &res); + kfree(buf); return res.a0; } -static inline unsigned long tsi_attestation_token_continue(struct cvm_attestation_cmd *attest_cmd) +static inline unsigned long tsi_attestation_token_continue(struct cvm_token_granule *token_granule) { struct arm_smccc_res res; - arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(attest_cmd->granule_ipa), - attest_cmd->offset, attest_cmd->size, &res); + arm_smccc_1_1_smc(SMC_TSI_ATTESTATION_TOKEN_CONTINUE, virt_to_phys(token_granule->ipa), + token_granule->offset, token_granule->size, &res); - attest_cmd->num_wr_bytes = res.a1; + token_granule->num_wr_bytes = res.a1; return res.a0; } diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 43e17a0da0..1ed4386db2 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -55,10 +55,13 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ - unsigned long token_size; /* return: challenge value */ - void *granule_head; - void *granule_ipa; /* IPA of the Granule to which the token will be written */ - unsigned long granule_count; + unsigned long token_size; /* return: token size */ +}; + +struct cvm_token_granule { + void *head; + void *ipa; /* IPA of the Granule to which the token will be written */ + unsigned long count; unsigned long offset; /* Offset within Granule to start of buffer in bytes */ unsigned long size; /* Size of buffer in bytes */ unsigned long num_wr_bytes; /* Number of bytes written to buffer */ diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index b48e5b17f4..252fe5352a 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -4,6 +4,7 @@ #include <linux/slab.h> #include <linux/miscdevice.h> #include <linux/preempt.h> +#include <asm/cvm_guest.h> #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> @@ -16,20 +17,19 @@ struct attestation_token { static struct attestation_token token; +static DEFINE_SPINLOCK(lock); + static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -static int tmm_tsi_release(struct inode *inode, struct file *file); static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, size_t size, loff_t *offset); static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg); -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token); +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg); static int tmm_get_device_cert(struct cca_device_cert __user *arg); static const struct file_operations tmm_tsi_fops = { .owner = THIS_MODULE, .read = tmm_token_read, - .release = tmm_tsi_release, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -44,6 +44,9 @@ static int __init tmm_tsi_init(void) unsigned long ver; int ret; + if (!is_cvm_world()) + return -EIO; + ver = tsi_get_version(); if (ver == SMCCC_RET_NOT_SUPPORTED) { pr_err("tmm_tsi: SMC return not supported!\n"); @@ -56,6 +59,11 @@ static int __init tmm_tsi_init(void) return ret; } + /* Allocate a large memory */ + token.buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); + if (!token.buf) + return -ENOMEM; + pr_warn("tmm_tsi: module loaded (version %lu.%lu).\n", TSI_ABI_VERSION_GET_MAJOR(ver), TSI_ABI_VERSION_GET_MINOR(ver)); @@ -65,8 +73,10 @@ static int __init tmm_tsi_init(void) static void __exit tmm_tsi_exit(void) { - if (token.buf != NULL) + if (token.buf != NULL) { + memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); kfree(token.buf); + } misc_deregister(&ioctl_dev); pr_warn("tmm_tsi: module unloaded.\n"); } @@ -80,7 +90,7 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg ret = tmm_get_tsi_version((struct cvm_tsi_version *)arg); break; case TMM_GET_ATTESTATION_TOKEN: - ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg, &token); + ret = tmm_get_attestation_token((struct cvm_attestation_cmd *)arg); break; case TMM_GET_DEVICE_CERT: ret = tmm_get_device_cert((struct cca_device_cert *)arg); @@ -99,28 +109,25 @@ static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, int ret; int to_copy; - if (*offset >= token.size) + spin_lock(&lock); + if (*offset >= token.size) { + spin_unlock(&lock); return 0; + } to_copy = min((int)size, (int)(token.size - *offset)); ret = copy_to_user(user_buffer, token.buf + *offset, to_copy); if (ret) { pr_err("tmm_tsi: copy token to user failed (%d)!\n", ret); + spin_unlock(&lock); return -1; } *offset += to_copy; + spin_unlock(&lock); return to_copy; } -static int tmm_tsi_release(struct inode *inode, struct file *file) -{ - if (token.buf != NULL) { - memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); - kfree(token.buf); - } - return 0; -} static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { @@ -141,65 +148,61 @@ static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) return 0; } -static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg, - struct attestation_token *attest_token) +static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) { unsigned long ret; - struct cvm_attestation_cmd cmd = {0}; + struct cvm_token_granule token_granule = {0}; + unsigned char challenge[CHALLENGE_SIZE]; - ret = copy_from_user(&(cmd.challenge), &(arg->challenge), sizeof(cmd.challenge)); + ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); return -EFAULT; } - /* Allocate a large memory */ - attest_token->buf = kmalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); - if (!attest_token->buf) - return -ENOMEM; - cmd.granule_head = attest_token->buf; - cmd.granule_ipa = cmd.granule_head; + spin_lock(&lock); + token_granule.head = token.buf; + token_granule.ipa = token_granule.head; - /* preempt_disable(); */ - - ret = tsi_attestation_token_init(&cmd); + ret = tsi_attestation_token_init(challenge); if (ret) { pr_err("tmm_tsi: tsi call tsi_attestation_token_init failed (%lu)!\n", ret); + spin_unlock(&lock); return -EIO; } do { /* Retrieve one Granule of data per loop iteration */ - cmd.granule_ipa = cmd.granule_head + - (unsigned long)(cmd.granule_count * GRANULE_SIZE); - cmd.offset = 0; + token_granule.ipa = token_granule.head + + (unsigned long)(token_granule.count * GRANULE_SIZE); + token_granule.offset = 0; do { /* Retrieve sub-Granule chunk of data per loop iteration */ - cmd.size = GRANULE_SIZE - cmd.offset; - ret = tsi_attestation_token_continue(&cmd); - cmd.offset += cmd.num_wr_bytes; - } while (ret == TSI_INCOMPLETE && cmd.offset < GRANULE_SIZE); + token_granule.size = GRANULE_SIZE - token_granule.offset; + ret = tsi_attestation_token_continue(&token_granule); + token_granule.offset += token_granule.num_wr_bytes; + } while (ret == TSI_INCOMPLETE && token_granule.offset < GRANULE_SIZE); - cmd.granule_count += 1; - if (cmd.granule_count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { + token_granule.count += 1; + if (token_granule.count >= MAX_TOKEN_GRANULE_PAGE && ret == TSI_INCOMPLETE) { pr_err("tmm_tsi: macro MAX_TOKEN_GRANULE_PAGE (%d) is too small!\n", MAX_TOKEN_GRANULE_PAGE); + spin_unlock(&lock); return -ENOMEM; } } while (ret == TSI_INCOMPLETE); - /* preempt_enable(); */ - /* Send to user space the total size of the token */ - cmd.granule_count = cmd.granule_count - 1; - cmd.token_size = (unsigned long)(GRANULE_SIZE * cmd.granule_count) + cmd.offset; - attest_token->size = cmd.token_size; + token_granule.count = token_granule.count - 1; + token.size = (unsigned long)(GRANULE_SIZE * token_granule.count) + token_granule.offset; - ret = copy_to_user(&(arg->token_size), &(cmd.token_size), sizeof(cmd.token_size)); + ret = copy_to_user(&(arg->token_size), &(token.size), sizeof(token.size)); if (ret) { pr_err("tmm_tsi: copy data to user failed (%lu)!\n", ret); + spin_unlock(&lock); return -EFAULT; } + spin_unlock(&lock); return 0; } -- 2.37.2.windows.2

2 1

[PATCH openEuler-22.03-LTS-SP1] net: core: reject skb_copy(_expand) for fraglist GSO skbs
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Felix Fietkau <nbd(a)nbd.name> stable inclusion from stable-v5.10.217 commit faa83a7797f06cefed86731ba4baa3b4dfdc06c1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U9P7 CVE: CVE-2024-36929 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d091e579b864fa790dd6a0cd537a22c383126681 ] SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment. Fixes: 3a1296a38d0c ("net: Support GRO/GSO fraglist chaining.") Signed-off-by: Felix Fietkau <nbd(a)nbd.name> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/core/skbuff.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 5197b286ef18d..120290a9d2078 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1534,11 +1534,17 @@ static inline int skb_alloc_rx_flag(const struct sk_buff *skb) struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask) { - int headerlen = skb_headroom(skb); - unsigned int size = skb_end_offset(skb) + skb->data_len; - struct sk_buff *n = __alloc_skb(size, gfp_mask, - skb_alloc_rx_flag(skb), NUMA_NO_NODE); + struct sk_buff *n; + unsigned int size; + int headerlen; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + headerlen = skb_headroom(skb); + size = skb_end_offset(skb) + skb->data_len; + n = __alloc_skb(size, gfp_mask, + skb_alloc_rx_flag(skb), NUMA_NO_NODE); if (!n) return NULL; @@ -1799,12 +1805,17 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb, /* * Allocate the copy buffer */ - struct sk_buff *n = __alloc_skb(newheadroom + skb->len + newtailroom, - gfp_mask, skb_alloc_rx_flag(skb), - NUMA_NO_NODE); - int oldheadroom = skb_headroom(skb); int head_copy_len, head_copy_off; + struct sk_buff *n; + int oldheadroom; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + oldheadroom = skb_headroom(skb); + n = __alloc_skb(newheadroom + skb->len + newtailroom, + gfp_mask, skb_alloc_rx_flag(skb), + NUMA_NO_NODE); if (!n) return NULL; -- 2.25.1

2 1

[PATCH OLK-5.10] net: core: reject skb_copy(_expand) for fraglist GSO skbs
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Felix Fietkau <nbd(a)nbd.name> stable inclusion from stable-v5.10.217 commit faa83a7797f06cefed86731ba4baa3b4dfdc06c1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U9P7 CVE: CVE-2024-36929 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d091e579b864fa790dd6a0cd537a22c383126681 ] SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment. Fixes: 3a1296a38d0c ("net: Support GRO/GSO fraglist chaining.") Signed-off-by: Felix Fietkau <nbd(a)nbd.name> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/core/skbuff.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 779a860e00731..de0229b8a920c 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1540,11 +1540,17 @@ static inline int skb_alloc_rx_flag(const struct sk_buff *skb) struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask) { - int headerlen = skb_headroom(skb); - unsigned int size = skb_end_offset(skb) + skb->data_len; - struct sk_buff *n = __alloc_skb(size, gfp_mask, - skb_alloc_rx_flag(skb), NUMA_NO_NODE); + struct sk_buff *n; + unsigned int size; + int headerlen; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + headerlen = skb_headroom(skb); + size = skb_end_offset(skb) + skb->data_len; + n = __alloc_skb(size, gfp_mask, + skb_alloc_rx_flag(skb), NUMA_NO_NODE); if (!n) return NULL; @@ -1856,12 +1862,17 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb, /* * Allocate the copy buffer */ - struct sk_buff *n = __alloc_skb(newheadroom + skb->len + newtailroom, - gfp_mask, skb_alloc_rx_flag(skb), - NUMA_NO_NODE); - int oldheadroom = skb_headroom(skb); int head_copy_len, head_copy_off; + struct sk_buff *n; + int oldheadroom; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + oldheadroom = skb_headroom(skb); + n = __alloc_skb(newheadroom + skb->len + newtailroom, + gfp_mask, skb_alloc_rx_flag(skb), + NUMA_NO_NODE); if (!n) return NULL; -- 2.25.1

2 1

[PATCH OLK-6.6] net: core: reject skb_copy(_expand) for fraglist GSO skbs
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Felix Fietkau <nbd(a)nbd.name> stable inclusion from stable-v6.6.31 commit cfe34d86ef9765c388f145039006bb79b6c81ac6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U9P7 CVE: CVE-2024-36929 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d091e579b864fa790dd6a0cd537a22c383126681 ] SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment. Fixes: 3a1296a38d0c ("net: Support GRO/GSO fraglist chaining.") Signed-off-by: Felix Fietkau <nbd(a)nbd.name> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/core/skbuff.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 60876262b3fb3..f0a9ef1aeaa29 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1971,11 +1971,17 @@ static inline int skb_alloc_rx_flag(const struct sk_buff *skb) struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask) { - int headerlen = skb_headroom(skb); - unsigned int size = skb_end_offset(skb) + skb->data_len; - struct sk_buff *n = __alloc_skb(size, gfp_mask, - skb_alloc_rx_flag(skb), NUMA_NO_NODE); + struct sk_buff *n; + unsigned int size; + int headerlen; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + headerlen = skb_headroom(skb); + size = skb_end_offset(skb) + skb->data_len; + n = __alloc_skb(size, gfp_mask, + skb_alloc_rx_flag(skb), NUMA_NO_NODE); if (!n) return NULL; @@ -2303,12 +2309,17 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb, /* * Allocate the copy buffer */ - struct sk_buff *n = __alloc_skb(newheadroom + skb->len + newtailroom, - gfp_mask, skb_alloc_rx_flag(skb), - NUMA_NO_NODE); - int oldheadroom = skb_headroom(skb); int head_copy_len, head_copy_off; + struct sk_buff *n; + int oldheadroom; + + if (WARN_ON_ONCE(skb_shinfo(skb)->gso_type & SKB_GSO_FRAGLIST)) + return NULL; + oldheadroom = skb_headroom(skb); + n = __alloc_skb(newheadroom + skb->len + newtailroom, + gfp_mask, skb_alloc_rx_flag(skb), + NUMA_NO_NODE); if (!n) return NULL; -- 2.25.1

2 1

[openeuler:OLK-5.10] BUILD SUCCESS 9e1339f3705f9326a4594db2783ca5d7522d1a9c
by kernel test robot 09 Jun '24

09 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 9e1339f3705f9326a4594db2783ca5d7522d1a9c !8684 tcp: properly terminate timers for kernel sockets Warning ids grouped by kconfigs: clang_recent_errors `-- x86_64-allnoconfig |-- drivers-arm-spe-spe.c:linux-perf-arm_pmu.h-is-included-more-than-once. |-- drivers-net-ethernet-yunsilicon-xsc-net-main.c:common-qp.h-is-included-more-than-once. |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_device.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl_admin.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_uvs_cmd.c:ubcore_device.h-is-included-more-than-once. `-- drivers-ub-urma-uburma-uburma_mmap.c:linux-version.h-not-needed. elapsed time: 1237m configs tested: 35 configs skipped: 131 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240609 gcc arm64 randconfig-002-20240609 clang arm64 randconfig-003-20240609 gcc arm64 randconfig-004-20240609 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240609 clang x86_64 buildonly-randconfig-002-20240609 clang x86_64 buildonly-randconfig-003-20240609 clang x86_64 buildonly-randconfig-004-20240609 gcc x86_64 buildonly-randconfig-005-20240609 clang x86_64 buildonly-randconfig-006-20240609 gcc x86_64 defconfig gcc x86_64 randconfig-001-20240609 gcc x86_64 randconfig-002-20240609 clang x86_64 randconfig-003-20240609 gcc x86_64 randconfig-004-20240609 gcc x86_64 randconfig-005-20240609 clang x86_64 randconfig-006-20240609 clang x86_64 randconfig-011-20240609 gcc x86_64 randconfig-012-20240609 gcc x86_64 randconfig-013-20240609 clang x86_64 randconfig-014-20240609 gcc x86_64 randconfig-015-20240609 clang x86_64 randconfig-016-20240609 gcc x86_64 randconfig-071-20240609 clang x86_64 randconfig-072-20240609 clang x86_64 randconfig-073-20240609 gcc x86_64 randconfig-074-20240609 clang x86_64 randconfig-075-20240609 gcc x86_64 randconfig-076-20240609 gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 V1] drm/vmwgfx: Fix invalid reads in fence signaled events
by Cheng Yu 09 Jun '24

09 Jun '24

From: Zack Rusin <zack.rusin(a)broadcom.com> mainline inclusion from mainline-v6.9-rc7 commit a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UNUO CVE: CVE-2024-36960 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Correctly set the length of the drm_event to the size of the structure that's actually used. The length of the drm_event was set to the parent structure instead of to the drm_vmw_event_fence which is supposed to be read. drm_read uses the length parameter to copy the event to the user space thus resuling in oob reads. Signed-off-by: Zack Rusin <zack.rusin(a)broadcom.com> Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action") Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23566 Cc: David Airlie <airlied(a)gmail.com> CC: Daniel Vetter <daniel(a)ffwll.ch> Cc: Zack Rusin <zack.rusin(a)broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list(a)broadcom.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-kernel(a)vger.kernel.org Cc: <stable(a)vger.kernel.org> # v3.4+ Reviewed-by: Maaz Mombasawala <maaz.mombasawala(a)broadcom.com> Reviewed-by: Martin Krastev <martin.krastev(a)broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240425192748.1761522-1-zack… Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 2a0cda324703..5efc6a766f64 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -991,7 +991,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; - event->event.base.length = sizeof(*event); + event->event.base.length = sizeof(event->event); event->event.user_data = user_data; ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 V1] drm/vmwgfx: Fix invalid reads in fence signaled events
by Cheng Yu 09 Jun '24

09 Jun '24

From: Zack Rusin <zack.rusin(a)broadcom.com> mainline inclusion from mainline-v6.9-rc7 commit a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UNUO CVE: CVE-2024-36960 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Correctly set the length of the drm_event to the size of the structure that's actually used. The length of the drm_event was set to the parent structure instead of to the drm_vmw_event_fence which is supposed to be read. drm_read uses the length parameter to copy the event to the user space thus resuling in oob reads. Signed-off-by: Zack Rusin <zack.rusin(a)broadcom.com> Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action") Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23566 Cc: David Airlie <airlied(a)gmail.com> CC: Daniel Vetter <daniel(a)ffwll.ch> Cc: Zack Rusin <zack.rusin(a)broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list(a)broadcom.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-kernel(a)vger.kernel.org Cc: <stable(a)vger.kernel.org> # v3.4+ Reviewed-by: Maaz Mombasawala <maaz.mombasawala(a)broadcom.com> Reviewed-by: Martin Krastev <martin.krastev(a)broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240425192748.1761522-1-zack… Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 8bc41ec97d71..6bacdb7583df 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -1066,7 +1066,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; - event->event.base.length = sizeof(*event); + event->event.base.length = sizeof(event->event); event->event.user_data = user_data; ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS V1] drm/vmwgfx: Fix invalid reads in fence signaled events
by Cheng Yu 09 Jun '24

09 Jun '24

From: Zack Rusin <zack.rusin(a)broadcom.com> mainline inclusion from mainline-v6.9-rc7 commit a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UNUO CVE: CVE-2024-36960 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Correctly set the length of the drm_event to the size of the structure that's actually used. The length of the drm_event was set to the parent structure instead of to the drm_vmw_event_fence which is supposed to be read. drm_read uses the length parameter to copy the event to the user space thus resuling in oob reads. Signed-off-by: Zack Rusin <zack.rusin(a)broadcom.com> Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action") Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23566 Cc: David Airlie <airlied(a)gmail.com> CC: Daniel Vetter <daniel(a)ffwll.ch> Cc: Zack Rusin <zack.rusin(a)broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list(a)broadcom.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-kernel(a)vger.kernel.org Cc: <stable(a)vger.kernel.org> # v3.4+ Reviewed-by: Maaz Mombasawala <maaz.mombasawala(a)broadcom.com> Reviewed-by: Martin Krastev <martin.krastev(a)broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240425192748.1761522-1-zack… Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 72a75316d472..e1b4f9612f5a 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -1064,7 +1064,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; - event->event.base.length = sizeof(*event); + event->event.base.length = sizeof(event->event); event->event.user_data = user_data; ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS V1] drm/vmwgfx: Fix invalid reads in fence signaled events
by Cheng Yu 09 Jun '24

09 Jun '24

From: Zack Rusin <zack.rusin(a)broadcom.com> mainline inclusion from mainline-v6.9-rc7 commit a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UNUO CVE: CVE-2024-36960 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Correctly set the length of the drm_event to the size of the structure that's actually used. The length of the drm_event was set to the parent structure instead of to the drm_vmw_event_fence which is supposed to be read. drm_read uses the length parameter to copy the event to the user space thus resuling in oob reads. Signed-off-by: Zack Rusin <zack.rusin(a)broadcom.com> Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action") Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23566 Cc: David Airlie <airlied(a)gmail.com> CC: Daniel Vetter <daniel(a)ffwll.ch> Cc: Zack Rusin <zack.rusin(a)broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list(a)broadcom.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-kernel(a)vger.kernel.org Cc: <stable(a)vger.kernel.org> # v3.4+ Reviewed-by: Maaz Mombasawala <maaz.mombasawala(a)broadcom.com> Reviewed-by: Martin Krastev <martin.krastev(a)broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240425192748.1761522-1-zack… Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 72a75316d472..e1b4f9612f5a 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -1064,7 +1064,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; - event->event.base.length = sizeof(*event); + event->event.base.length = sizeof(event->event); event->event.user_data = user_data; ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); -- 2.25.1

2 1

[PATCH OLK-6.6] xdp: use flags field to disambiguate broadcast redirect
by Ziyang Xuan 09 Jun '24

09 Jun '24

From: Toke Høiland-Jørgensen <toke(a)redhat.com> stable inclusion from stable-v6.6.31 commit e22e25820fa04ea5eaac4ef7ee200e9923f466a4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UM46 CVE: CVE-2024-36937 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 5bcf0dcbf9066348058b88a510c57f70f384c92c ] When redirecting a packet using XDP, the bpf_redirect_map() helper will set up the redirect destination information in struct bpf_redirect_info (using the __bpf_xdp_redirect_map() helper function), and the xdp_do_redirect() function will read this information after the XDP program returns and pass the frame on to the right redirect destination. When using the BPF_F_BROADCAST flag to do multicast redirect to a whole map, __bpf_xdp_redirect_map() sets the 'map' pointer in struct bpf_redirect_info to point to the destination map to be broadcast. And xdp_do_redirect() reacts to the value of this map pointer to decide whether it's dealing with a broadcast or a single-value redirect. However, if the destination map is being destroyed before xdp_do_redirect() is called, the map pointer will be cleared out (by bpf_clear_redirect_map()) without waiting for any XDP programs to stop running. This causes xdp_do_redirect() to think that the redirect was to a single target, but the target pointer is also NULL (since broadcast redirects don't have a single target), so this causes a crash when a NULL pointer is passed to dev_map_enqueue(). To fix this, change xdp_do_redirect() to react directly to the presence of the BPF_F_BROADCAST flag in the 'flags' value in struct bpf_redirect_info to disambiguate between a single-target and a broadcast redirect. And only read the 'map' pointer if the broadcast flag is set, aborting if that has been cleared out in the meantime. This prevents the crash, while keeping the atomic (cmpxchg-based) clearing of the map pointer itself, and without adding any more checks in the non-broadcast fast path. Fixes: e624d4ed4aa8 ("xdp: Extend xdp_redirect_map with broadcast support") Reported-and-tested-by: syzbot+af9492708df9797198d6(a)syzkaller.appspotmail.com Signed-off-by: Toke Høiland-Jørgensen <toke(a)redhat.com> Acked-by: Stanislav Fomichev <sdf(a)google.com> Reviewed-by: Hangbin Liu <liuhangbin(a)gmail.com> Acked-by: Jesper Dangaard Brouer <hawk(a)kernel.org> Link: https://lore.kernel.org/r/20240418071840.156411-1-toke@redhat.com Signed-off-by: Martin KaFai Lau <martin.lau(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/core/filter.c | 42 ++++++++++++++++++++++++++++++++---------- 1 file changed, 32 insertions(+), 10 deletions(-) diff --git a/net/core/filter.c b/net/core/filter.c index 81cd6493c7d10..6ec353bf36f38 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -4334,10 +4334,12 @@ static __always_inline int __xdp_do_redirect_frame(struct bpf_redirect_info *ri, enum bpf_map_type map_type = ri->map_type; void *fwd = ri->tgt_value; u32 map_id = ri->map_id; + u32 flags = ri->flags; struct bpf_map *map; int err; ri->map_id = 0; /* Valid map id idr range: [1,INT_MAX[ */ + ri->flags = 0; ri->map_type = BPF_MAP_TYPE_UNSPEC; if (unlikely(!xdpf)) { @@ -4349,11 +4351,20 @@ static __always_inline int __xdp_do_redirect_frame(struct bpf_redirect_info *ri, case BPF_MAP_TYPE_DEVMAP: fallthrough; case BPF_MAP_TYPE_DEVMAP_HASH: - map = READ_ONCE(ri->map); - if (unlikely(map)) { + if (unlikely(flags & BPF_F_BROADCAST)) { + map = READ_ONCE(ri->map); + + /* The map pointer is cleared when the map is being torn + * down by bpf_clear_redirect_map() + */ + if (unlikely(!map)) { + err = -ENOENT; + break; + } + WRITE_ONCE(ri->map, NULL); err = dev_map_enqueue_multi(xdpf, dev, map, - ri->flags & BPF_F_EXCLUDE_INGRESS); + flags & BPF_F_EXCLUDE_INGRESS); } else { err = dev_map_enqueue(fwd, xdpf, dev); } @@ -4416,9 +4427,9 @@ EXPORT_SYMBOL_GPL(xdp_do_redirect_frame); static int xdp_do_generic_redirect_map(struct net_device *dev, struct sk_buff *skb, struct xdp_buff *xdp, - struct bpf_prog *xdp_prog, - void *fwd, - enum bpf_map_type map_type, u32 map_id) + struct bpf_prog *xdp_prog, void *fwd, + enum bpf_map_type map_type, u32 map_id, + u32 flags) { struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info); struct bpf_map *map; @@ -4428,11 +4439,20 @@ static int xdp_do_generic_redirect_map(struct net_device *dev, case BPF_MAP_TYPE_DEVMAP: fallthrough; case BPF_MAP_TYPE_DEVMAP_HASH: - map = READ_ONCE(ri->map); - if (unlikely(map)) { + if (unlikely(flags & BPF_F_BROADCAST)) { + map = READ_ONCE(ri->map); + + /* The map pointer is cleared when the map is being torn + * down by bpf_clear_redirect_map() + */ + if (unlikely(!map)) { + err = -ENOENT; + break; + } + WRITE_ONCE(ri->map, NULL); err = dev_map_redirect_multi(dev, skb, xdp_prog, map, - ri->flags & BPF_F_EXCLUDE_INGRESS); + flags & BPF_F_EXCLUDE_INGRESS); } else { err = dev_map_generic_redirect(fwd, skb, xdp_prog); } @@ -4469,9 +4489,11 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb, enum bpf_map_type map_type = ri->map_type; void *fwd = ri->tgt_value; u32 map_id = ri->map_id; + u32 flags = ri->flags; int err; ri->map_id = 0; /* Valid map id idr range: [1,INT_MAX[ */ + ri->flags = 0; ri->map_type = BPF_MAP_TYPE_UNSPEC; if (map_type == BPF_MAP_TYPE_UNSPEC && map_id == INT_MAX) { @@ -4491,7 +4513,7 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb, return 0; } - return xdp_do_generic_redirect_map(dev, skb, xdp, xdp_prog, fwd, map_type, map_id); + return xdp_do_generic_redirect_map(dev, skb, xdp, xdp_prog, fwd, map_type, map_id, flags); err: _trace_xdp_redirect_err(dev, xdp_prog, ri->tgt_index, err); return err; -- 2.25.1

2 1

[PATCH OLK-5.10 V1] drm/vmwgfx: Fix invalid reads in fence signaled events
by Cheng Yu 09 Jun '24

09 Jun '24

From: Zack Rusin <zack.rusin(a)broadcom.com> mainline inclusion from mainline-v6.9-rc7 commit a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UNUO CVE: CVE-2024-36960 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Correctly set the length of the drm_event to the size of the structure that's actually used. The length of the drm_event was set to the parent structure instead of to the drm_vmw_event_fence which is supposed to be read. drm_read uses the length parameter to copy the event to the user space thus resuling in oob reads. Signed-off-by: Zack Rusin <zack.rusin(a)broadcom.com> Fixes: 8b7de6aa8468 ("vmwgfx: Rework fence event action") Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23566 Cc: David Airlie <airlied(a)gmail.com> CC: Daniel Vetter <daniel(a)ffwll.ch> Cc: Zack Rusin <zack.rusin(a)broadcom.com> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list(a)broadcom.com> Cc: dri-devel(a)lists.freedesktop.org Cc: linux-kernel(a)vger.kernel.org Cc: <stable(a)vger.kernel.org> # v3.4+ Reviewed-by: Maaz Mombasawala <maaz.mombasawala(a)broadcom.com> Reviewed-by: Martin Krastev <martin.krastev(a)broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240425192748.1761522-1-zack… Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 8bc41ec97d71..6bacdb7583df 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -1066,7 +1066,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; - event->event.base.length = sizeof(*event); + event->event.base.length = sizeof(event->event); event->event.user_data = user_data; ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); -- 2.25.1

2 1

[openeuler:openEuler-1.0-LTS 18952/22827] mm/shmem.c:1601:19: sparse: sparse: invalid assignment: |=
by kernel test robot 09 Jun '24

09 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 6a98543755cf2f636ae3169f3774d226d328d2cf commit: 3a3a1f75d885bc1d1a25bb753dd2cf9111c457f7 [18952/22827] shmem: Introduce shmem reliable config: arm64-randconfig-r123-20240607 (https://download.01.org/0day-ci/archive/20240609/202406090739.J3hAY6q8-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240609/202406090739.J3hAY6q8-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406090739.J3hAY6q8-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/shmem.c:1601:19: sparse: sparse: invalid assignment: |= mm/shmem.c:1601:19: sparse: left side has type restricted gfp_t mm/shmem.c:1601:19: sparse: right side has type unsigned int mm/shmem.c: note: in included file (through include/linux/percpu_counter.h, include/linux/quota.h, include/linux/fs.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/shmem.c: In function 'shmem_fh_to_dentry': mm/shmem.c:3403:24: warning: array subscript 2 is outside array bounds of '__u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=] 3403 | inum = fid->raw[2]; | ~~~~~~~~^~~ In file included from mm/shmem.c:53: include/linux/exportfs.h:129:23: note: while referencing 'raw' 129 | __u32 raw[0]; | ^~~ mm/shmem.c:3404:39: warning: array subscript 1 is outside array bounds of '__u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=] 3404 | inum = (inum << 32) | fid->raw[1]; | ~~~~~~~~^~~ include/linux/exportfs.h:129:23: note: while referencing 'raw' 129 | __u32 raw[0]; | ^~~ mm/shmem.c:3406:61: warning: array subscript 0 is outside array bounds of '__u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=] 3406 | inode = ilookup5(sb, (unsigned long)(inum + fid->raw[0]), | ~~~~~~~~^~~ include/linux/exportfs.h:129:23: note: while referencing 'raw' 129 | __u32 raw[0]; | ^~~ vim +1601 mm/shmem.c 1595 1596 static inline void shmem_prepare_alloc(gfp_t *gfp_mask) 1597 { 1598 if (!shmem_reliable_is_enabled()) 1599 return; 1600 > 1601 *gfp_mask |= ___GFP_RELIABILITY; 1602 } 1603 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS] BUILD REGRESSION 6a98543755cf2f636ae3169f3774d226d328d2cf
by kernel test robot 09 Jun '24

09 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 6a98543755cf2f636ae3169f3774d226d328d2cf !8628 erspan: make sure erspan_base_hdr is present in skb->head Error/Warning reports: https://lore.kernel.org/oe-kbuild-all/202406081538.GZO9E4bP-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202406090015.Dx2VIQ1d-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202406090419.Or3DQ4pF-lkp@intel.com Error/Warning: (recently discovered and may have been fixed) mm/khugepaged.c:974:21: sparse: sparse: invalid assignment: |= Unverified Error/Warning (likely false positive, please contact us if interested): drivers/scsi/ufs/ufs-qcom.c:1665: error: Cannot parse struct or union! super.c:(.exit.text+0x7c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `netlink_kernel_release' super.c:(.init.text+0x6b38): relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21 against undefined symbol `init_net' super.c:(.init.text+0x6b48): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__netlink_kernel_create' super.c:(.text+0x130dc): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__alloc_skb' super.c:(.text+0x13144): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__nlmsg_put' super.c:(.text+0x131b4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `netlink_broadcast' super.c:(.text+0x131d8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `kfree_skb' Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-allmodconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- arm64-defconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- arm64-randconfig-004-20240608 | |-- drivers-scsi-ufs-ufs-qcom.c:error:Cannot-parse-struct-or-union | |-- super.c:(.exit.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-netlink_kernel_release | |-- super.c:(.init.text):relocation-truncated-to-fit:R_AARCH64_ADR_PREL_PG_HI21-against-undefined-symbol-init_net | |-- super.c:(.init.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-__netlink_kernel_create | |-- super.c:(.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-__alloc_skb | |-- super.c:(.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-__nlmsg_put | |-- super.c:(.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-kfree_skb | `-- super.c:(.text):relocation-truncated-to-fit:R_AARCH64_CALL26-against-undefined-symbol-netlink_broadcast |-- arm64-randconfig-r123-20240607 | |-- drivers-remoteproc-qcom_adsp_pil.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-void-mem_region-got-void-noderef-asn | |-- drivers-remoteproc-qcom_q6v5_pil.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-void-mba_region-got-void-noderef-asn | |-- drivers-remoteproc-qcom_q6v5_pil.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-void-mpss_region-got-void-noderef-asn | |-- drivers-remoteproc-qcom_wcnss.c:sparse:sparse:incorrect-type-in-assignment-(different-address-spaces)-expected-void-mem_region-got-void-noderef-asn | |-- mm-khugepaged.c:sparse:sparse:invalid-assignment: | `-- net-netfilter-nft_counter.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-struct-nft_counter_percpu_priv-noderef-asn-priv-got-struct-nft_counter_percpu_priv-priv |-- x86_64-buildonly-randconfig-004-20240609 | `-- fs-f2fs-.tmp_recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-buildonly-randconfig-006-20240609 | |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code | `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text `-- x86_64-randconfig-001-20240609 `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code clang_recent_errors |-- x86_64-allyesconfig | |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension | `-- fs-f2fs-.tmp_recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-buildonly-randconfig-002-20240609 | `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text `-- x86_64-buildonly-randconfig-005-20240609 |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text elapsed time: 1126m configs tested: 16 configs skipped: 131 tested configs: arm64 allmodconfig gcc arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-003-20240609 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240609 clang x86_64 buildonly-randconfig-002-20240609 clang x86_64 buildonly-randconfig-003-20240609 clang x86_64 buildonly-randconfig-004-20240609 gcc x86_64 buildonly-randconfig-005-20240609 clang x86_64 buildonly-randconfig-006-20240609 gcc x86_64 defconfig gcc x86_64 randconfig-001-20240609 gcc x86_64 randconfig-002-20240609 clang x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 18949/22827] mm/khugepaged.c:974:21: sparse: sparse: invalid assignment: |=
by kernel test robot 09 Jun '24

09 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 6a98543755cf2f636ae3169f3774d226d328d2cf commit: ff0fb9e816fac221fa24a1810dd895745406070b [18949/22827] mm: thp: Add memory reliable support for hugepaged collapse config: arm64-randconfig-r123-20240607 (https://download.01.org/0day-ci/archive/20240609/202406090419.Or3DQ4pF-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240609/202406090419.Or3DQ4pF-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406090419.Or3DQ4pF-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/khugepaged.c:974:21: sparse: sparse: invalid assignment: |= mm/khugepaged.c:974:21: sparse: left side has type restricted gfp_t mm/khugepaged.c:974:21: sparse: right side has type unsigned int mm/khugepaged.c:1352:21: sparse: sparse: invalid assignment: |= mm/khugepaged.c:1352:21: sparse: left side has type restricted gfp_t mm/khugepaged.c:1352:21: sparse: right side has type unsigned int mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1409:56: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1409:56: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1409:56: sparse: got void **slot mm/khugepaged.c:1458:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1458:22: sparse: expected void **slot mm/khugepaged.c:1458:22: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1459:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1459:17: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1459:17: sparse: got void **slot mm/khugepaged.c:1483:60: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1483:60: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1483:60: sparse: got void **slot mm/khugepaged.c:1486:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1486:47: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1486:47: sparse: got void **slot mm/khugepaged.c:1486:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1486:22: sparse: expected void **slot mm/khugepaged.c:1486:22: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1378:9: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1378:9: sparse: got void **slot mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1597:68: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1597:68: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1597:68: sparse: got void **slot mm/khugepaged.c:1598:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1598:55: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1598:55: sparse: got void **slot mm/khugepaged.c:1598:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1598:30: sparse: expected void **slot mm/khugepaged.c:1598:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1578:17: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1578:17: sparse: got void **slot mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1637:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1637:46: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1637:46: sparse: got void **slot mm/khugepaged.c:1639:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1639:30: sparse: expected void **slot mm/khugepaged.c:1639:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1682:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1682:55: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1682:55: sparse: got void **slot mm/khugepaged.c:1682:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1682:30: sparse: expected void **slot mm/khugepaged.c:1682:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1633:9: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1633:9: sparse: got void **slot mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c: note: in included file (through include/linux/mm.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/khugepaged.c:1336: warning: Function parameter or member 'mm' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'mapping' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'start' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'hpage' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'node' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'reliable' not described in 'collapse_shmem' vim +974 mm/khugepaged.c 949 950 static void collapse_huge_page(struct mm_struct *mm, 951 unsigned long address, 952 struct page **hpage, 953 int node, int referenced, int unmapped, 954 bool reliable) 955 { 956 pmd_t *pmd, _pmd; 957 pte_t *pte; 958 pgtable_t pgtable; 959 struct page *new_page; 960 spinlock_t *pmd_ptl, *pte_ptl; 961 int isolated = 0, result = 0; 962 struct mem_cgroup *memcg; 963 struct vm_area_struct *vma; 964 unsigned long mmun_start; /* For mmu_notifiers */ 965 unsigned long mmun_end; /* For mmu_notifiers */ 966 gfp_t gfp; 967 968 VM_BUG_ON(address & ~HPAGE_PMD_MASK); 969 970 /* Only allocate from the target node */ 971 gfp = alloc_hugepage_khugepaged_gfpmask() | __GFP_THISNODE; 972 973 if (reliable) > 974 gfp |= ___GFP_RELIABILITY; 975 976 /* 977 * Before allocating the hugepage, release the mmap_sem read lock. 978 * The allocation can take potentially a long time if it involves 979 * sync compaction, and we do not need to hold the mmap_sem during 980 * that. We will recheck the vma after taking it again in write mode. 981 */ 982 up_read(&mm->mmap_sem); 983 new_page = khugepaged_alloc_page(hpage, gfp, node); 984 if (!new_page) { 985 result = SCAN_ALLOC_HUGE_PAGE_FAIL; 986 goto out_nolock; 987 } 988 989 if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) { 990 result = SCAN_CGROUP_CHARGE_FAIL; 991 goto out_nolock; 992 } 993 994 down_read(&mm->mmap_sem); 995 result = hugepage_vma_revalidate(mm, address, &vma); 996 if (result) { 997 mem_cgroup_cancel_charge(new_page, memcg, true); 998 up_read(&mm->mmap_sem); 999 goto out_nolock; 1000 } 1001 1002 pmd = mm_find_pmd(mm, address); 1003 if (!pmd) { 1004 result = SCAN_PMD_NULL; 1005 mem_cgroup_cancel_charge(new_page, memcg, true); 1006 up_read(&mm->mmap_sem); 1007 goto out_nolock; 1008 } 1009 1010 /* 1011 * __collapse_huge_page_swapin always returns with mmap_sem locked. 1012 * If it fails, we release mmap_sem and jump out_nolock. 1013 * Continuing to collapse causes inconsistency. 1014 */ 1015 if (unmapped && !__collapse_huge_page_swapin(mm, vma, address, 1016 pmd, referenced)) { 1017 mem_cgroup_cancel_charge(new_page, memcg, true); 1018 up_read(&mm->mmap_sem); 1019 goto out_nolock; 1020 } 1021 1022 up_read(&mm->mmap_sem); 1023 /* 1024 * Prevent all access to pagetables with the exception of 1025 * gup_fast later handled by the ptep_clear_flush and the VM 1026 * handled by the anon_vma lock + PG_lock. 1027 */ 1028 down_write(&mm->mmap_sem); 1029 result = hugepage_vma_revalidate(mm, address, &vma); 1030 if (result) 1031 goto out; 1032 /* check if the pmd is still valid */ 1033 if (mm_find_pmd(mm, address) != pmd) 1034 goto out; 1035 1036 anon_vma_lock_write(vma->anon_vma); 1037 1038 pte = pte_offset_map(pmd, address); 1039 pte_ptl = pte_lockptr(mm, pmd); 1040 1041 mmun_start = address; 1042 mmun_end = address + HPAGE_PMD_SIZE; 1043 mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); 1044 pmd_ptl = pmd_lock(mm, pmd); /* probably unnecessary */ 1045 /* 1046 * After this gup_fast can't run anymore. This also removes 1047 * any huge TLB entry from the CPU so we won't allow 1048 * huge and small TLB entries for the same virtual address 1049 * to avoid the risk of CPU bugs in that area. 1050 */ 1051 _pmd = pmdp_collapse_flush(vma, address, pmd); 1052 spin_unlock(pmd_ptl); 1053 mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); 1054 1055 spin_lock(pte_ptl); 1056 isolated = __collapse_huge_page_isolate(vma, address, pte); 1057 spin_unlock(pte_ptl); 1058 1059 if (unlikely(!isolated)) { 1060 pte_unmap(pte); 1061 spin_lock(pmd_ptl); 1062 BUG_ON(!pmd_none(*pmd)); 1063 /* 1064 * We can only use set_pmd_at when establishing 1065 * hugepmds and never for establishing regular pmds that 1066 * points to regular pagetables. Use pmd_populate for that 1067 */ 1068 pmd_populate(mm, pmd, pmd_pgtable(_pmd)); 1069 spin_unlock(pmd_ptl); 1070 anon_vma_unlock_write(vma->anon_vma); 1071 result = SCAN_FAIL; 1072 goto out; 1073 } 1074 1075 /* 1076 * All pages are isolated and locked so anon_vma rmap 1077 * can't run anymore. 1078 */ 1079 anon_vma_unlock_write(vma->anon_vma); 1080 1081 __collapse_huge_page_copy(pte, new_page, vma, address, pte_ptl); 1082 pte_unmap(pte); 1083 __SetPageUptodate(new_page); 1084 pgtable = pmd_pgtable(_pmd); 1085 1086 _pmd = mk_huge_pmd(new_page, vma->vm_page_prot); 1087 _pmd = maybe_pmd_mkwrite(pmd_mkdirty(_pmd), vma); 1088 1089 /* 1090 * spin_lock() below is not the equivalent of smp_wmb(), so 1091 * this is needed to avoid the copy_huge_page writes to become 1092 * visible after the set_pmd_at() write. 1093 */ 1094 smp_wmb(); 1095 1096 spin_lock(pmd_ptl); 1097 BUG_ON(!pmd_none(*pmd)); 1098 page_add_new_anon_rmap(new_page, vma, address, true); 1099 mem_cgroup_commit_charge(new_page, memcg, false, true); 1100 count_memcg_events(memcg, THP_COLLAPSE_ALLOC, 1); 1101 lru_cache_add_active_or_unevictable(new_page, vma); 1102 pgtable_trans_huge_deposit(mm, pmd, pgtable); 1103 set_pmd_at(mm, address, pmd, _pmd); 1104 update_mmu_cache_pmd(vma, address, pmd); 1105 spin_unlock(pmd_ptl); 1106 1107 *hpage = NULL; 1108 1109 khugepaged_pages_collapsed++; 1110 result = SCAN_SUCCEED; 1111 out_up_write: 1112 up_write(&mm->mmap_sem); 1113 out_nolock: 1114 trace_mm_collapse_huge_page(mm, isolated, result); 1115 return; 1116 out: 1117 mem_cgroup_cancel_charge(new_page, memcg, true); 1118 goto out_up_write; 1119 } 1120 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 5421/22827] drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: sparse: incorrect type in assignment (different address spaces)
by kernel test robot 09 Jun '24

09 Jun '24

Hi Paulo, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 6a98543755cf2f636ae3169f3774d226d328d2cf commit: 71e217e85c3dff8a9151707ed3afc7b4b054a2d4 [5421/22827] selinux: use kernel linux/socket.h for genheaders and mdp config: arm64-randconfig-r123-20240607 (https://download.01.org/0day-ci/archive/20240609/202406090015.Dx2VIQ1d-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240609/202406090015.Dx2VIQ1d-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406090015.Dx2VIQ1d-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mem_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: expected void *mem_region drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: got void [noderef] <asn:2> * -- >> drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mba_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: expected void *mba_region drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: got void [noderef] <asn:2> * >> drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mpss_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: expected void *mpss_region drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: got void [noderef] <asn:2> * drivers/remoteproc/qcom_q6v5_pil.c: In function 'q6v5_mpss_load': drivers/remoteproc/qcom_q6v5_pil.c:741:70: warning: '%02d' directive output may be truncated writing between 2 and 11 bytes into a region of size 3 [-Wformat-truncation=] 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~ drivers/remoteproc/qcom_q6v5_pil.c:741:62: note: directive argument in the range [-2147483641, 65534] 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~~~~~~~~~~ drivers/remoteproc/qcom_q6v5_pil.c:741:25: note: 'snprintf' output between 10 and 19 bytes into a destination of size 10 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- >> drivers/remoteproc/qcom_wcnss.c:456:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mem_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_wcnss.c:456:27: sparse: expected void *mem_region drivers/remoteproc/qcom_wcnss.c:456:27: sparse: got void [noderef] <asn:2> * -- >> net/netfilter/nft_counter.c:158:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct nft_counter_percpu_priv [noderef] <asn:3> *priv @@ got struct nft_counter_percpu_priv *priv @@ net/netfilter/nft_counter.c:158:35: sparse: expected struct nft_counter_percpu_priv [noderef] <asn:3> *priv net/netfilter/nft_counter.c:158:35: sparse: got struct nft_counter_percpu_priv *priv net/netfilter/nft_counter.c:113:20: sparse: sparse: dereference of noderef expression vim +246 drivers/remoteproc/qcom_adsp_pil.c b9e718e950c3df Bjorn Andersson 2016-08-22 227 b9e718e950c3df Bjorn Andersson 2016-08-22 228 static int adsp_alloc_memory_region(struct qcom_adsp *adsp) b9e718e950c3df Bjorn Andersson 2016-08-22 229 { b9e718e950c3df Bjorn Andersson 2016-08-22 230 struct device_node *node; b9e718e950c3df Bjorn Andersson 2016-08-22 231 struct resource r; b9e718e950c3df Bjorn Andersson 2016-08-22 232 int ret; b9e718e950c3df Bjorn Andersson 2016-08-22 233 b9e718e950c3df Bjorn Andersson 2016-08-22 234 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0); b9e718e950c3df Bjorn Andersson 2016-08-22 235 if (!node) { b9e718e950c3df Bjorn Andersson 2016-08-22 236 dev_err(adsp->dev, "no memory-region specified\n"); b9e718e950c3df Bjorn Andersson 2016-08-22 237 return -EINVAL; b9e718e950c3df Bjorn Andersson 2016-08-22 238 } b9e718e950c3df Bjorn Andersson 2016-08-22 239 b9e718e950c3df Bjorn Andersson 2016-08-22 240 ret = of_address_to_resource(node, 0, &r); b9e718e950c3df Bjorn Andersson 2016-08-22 241 if (ret) b9e718e950c3df Bjorn Andersson 2016-08-22 242 return ret; b9e718e950c3df Bjorn Andersson 2016-08-22 243 b9e718e950c3df Bjorn Andersson 2016-08-22 244 adsp->mem_phys = adsp->mem_reloc = r.start; b9e718e950c3df Bjorn Andersson 2016-08-22 245 adsp->mem_size = resource_size(&r); b9e718e950c3df Bjorn Andersson 2016-08-22 @246 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size); b9e718e950c3df Bjorn Andersson 2016-08-22 247 if (!adsp->mem_region) { b9e718e950c3df Bjorn Andersson 2016-08-22 248 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n", b9e718e950c3df Bjorn Andersson 2016-08-22 249 &r.start, adsp->mem_size); b9e718e950c3df Bjorn Andersson 2016-08-22 250 return -EBUSY; b9e718e950c3df Bjorn Andersson 2016-08-22 251 } b9e718e950c3df Bjorn Andersson 2016-08-22 252 b9e718e950c3df Bjorn Andersson 2016-08-22 253 return 0; b9e718e950c3df Bjorn Andersson 2016-08-22 254 } b9e718e950c3df Bjorn Andersson 2016-08-22 255 :::::: The code at line 246 was first introduced by commit :::::: b9e718e950c3dfa458bbf9180a8d8691e55413ae remoteproc: Introduce Qualcomm ADSP PIL :::::: TO: Bjorn Andersson <bjorn.andersson(a)sonymobile.com> :::::: CC: Bjorn Andersson <bjorn.andersson(a)linaro.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] bpf, skmsg: Fix NULL pointer dereference in sk_psock_skb_ingress_enqueue
by Liu Jian 08 Jun '24

08 Jun '24

From: Jason Xing <kernelxing(a)tencent.com> stable inclusion from stable-v6.6.31 commit b397a0ab8582c533ec0c6b732392f141fc364f87 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U1UZ CVE: CVE-2024-3693 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 6648e613226e18897231ab5e42ffc29e63fa3365 ] Fix NULL pointer data-races in sk_psock_skb_ingress_enqueue() which syzbot reported [1]. [1] BUG: KCSAN: data-race in sk_psock_drop / sk_psock_skb_ingress_enqueue write to 0xffff88814b3278b8 of 8 bytes by task 10724 on cpu 1: sk_psock_stop_verdict net/core/skmsg.c:1257 [inline] sk_psock_drop+0x13e/0x1f0 net/core/skmsg.c:843 sk_psock_put include/linux/skmsg.h:459 [inline] sock_map_close+0x1a7/0x260 net/core/sock_map.c:1648 unix_release+0x4b/0x80 net/unix/af_unix.c:1048 __sock_release net/socket.c:659 [inline] sock_close+0x68/0x150 net/socket.c:1421 __fput+0x2c1/0x660 fs/file_table.c:422 __fput_sync+0x44/0x60 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close+0x101/0x1b0 fs/open.c:1541 __x64_sys_close+0x1f/0x30 fs/open.c:1541 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 read to 0xffff88814b3278b8 of 8 bytes by task 10713 on cpu 0: sk_psock_data_ready include/linux/skmsg.h:464 [inline] sk_psock_skb_ingress_enqueue+0x32d/0x390 net/core/skmsg.c:555 sk_psock_skb_ingress_self+0x185/0x1e0 net/core/skmsg.c:606 sk_psock_verdict_apply net/core/skmsg.c:1008 [inline] sk_psock_verdict_recv+0x3e4/0x4a0 net/core/skmsg.c:1202 unix_read_skb net/unix/af_unix.c:2546 [inline] unix_stream_read_skb+0x9e/0xf0 net/unix/af_unix.c:2682 sk_psock_verdict_data_ready+0x77/0x220 net/core/skmsg.c:1223 unix_stream_sendmsg+0x527/0x860 net/unix/af_unix.c:2339 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:745 ____sys_sendmsg+0x312/0x410 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x1e9/0x280 net/socket.c:2667 __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2674 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 value changed: 0xffffffff83d7feb0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10713 Comm: syz-executor.4 Tainted: G W 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Prior to this, commit 4cd12c6065df ("bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()") fixed one NULL pointer similarly due to no protection of saved_data_ready. Here is another different caller causing the same issue because of the same reason. So we should protect it with sk_callback_lock read lock because the writer side in the sk_psock_drop() uses "write_lock_bh(&sk->sk_callback_lock);". To avoid errors that could happen in future, I move those two pairs of lock into the sk_psock_data_ready(), which is suggested by John Fastabend. Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface") Reported-by: syzbot+aa8c8ec2538929f18f2d(a)syzkaller.appspotmail.com Signed-off-by: Jason Xing <kernelxing(a)tencent.com> Signed-off-by: Daniel Borkmann <daniel(a)iogearbox.net> Reviewed-by: John Fastabend <john.fastabend(a)gmail.com> Closes: https://syzkaller.appspot.com/bug?extid=aa8c8ec2538929f18f2d Link: https://lore.kernel.org/all/20240329134037.92124-1-kerneljasonxing@gmail.com Link: https://lore.kernel.org/bpf/20240404021001.94815-1-kerneljasonxing@gmail.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- include/linux/skmsg.h | 2 ++ net/core/skmsg.c | 5 +---- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h index f69af3de0da0..fdedb7a29c0e 100644 --- a/include/linux/skmsg.h +++ b/include/linux/skmsg.h @@ -467,10 +467,12 @@ static inline void sk_psock_put(struct sock *sk, struct sk_psock *psock) static inline void sk_psock_data_ready(struct sock *sk, struct sk_psock *psock) { + read_lock_bh(&sk->sk_callback_lock); if (psock->saved_data_ready) psock->saved_data_ready(sk); else sk->sk_data_ready(sk); + read_unlock_bh(&sk->sk_callback_lock); } static inline void psock_set_prog(struct bpf_prog **pprog, diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 6f774de8f6b2..f2e7ce81fef0 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -1234,11 +1234,8 @@ static void sk_psock_verdict_data_ready(struct sock *sk) rcu_read_lock(); psock = sk_psock(sk); - if (psock) { - read_lock_bh(&sk->sk_callback_lock); + if (psock) sk_psock_data_ready(sk, psock); - read_unlock_bh(&sk->sk_callback_lock); - } rcu_read_unlock(); } } -- 2.34.1

2 1

[PATCH OLK-6.6] ipv6: prevent NULL dereference in ip6_output()
by Liu Jian 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.9 commit 4db783d68b9b39a411a96096c10828ff5dfada7a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UO9S CVE: CVE-2024-36901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 778d80be5269 ("ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Larysa Zaremba <larysa.zaremba(a)intel.com> Link: https://lore.kernel.org/r/20240507161842.773961-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/ipv6/ip6_output.c [Did not backport d289ab65b89c.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 53fe1375b147..412a16932341 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -227,7 +227,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) skb->protocol = htons(ETH_P_IPV6); skb->dev = dev; - if (unlikely(idev->cnf.disable_ipv6)) { + if (unlikely(!idev || idev->cnf.disable_ipv6)) { IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb_reason(skb, SKB_DROP_REASON_IPV6DISABLED); return 0; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] ipv6: prevent NULL dereference in ip6_output()
by Liu Jian 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.9 commit 4db783d68b9b39a411a96096c10828ff5dfada7a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UO9S CVE: CVE-2024-36901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 778d80be5269 ("ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Larysa Zaremba <larysa.zaremba(a)intel.com> Link: https://lore.kernel.org/r/20240507161842.773961-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/ipv6/ip6_output.c [Did not backport d289ab65b89c.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 968b2602c400..179fe599efba 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -206,7 +206,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) skb->protocol = htons(ETH_P_IPV6); skb->dev = dev; - if (unlikely(idev->cnf.disable_ipv6)) { + if (unlikely(!idev || idev->cnf.disable_ipv6)) { IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb(skb); return 0; -- 2.34.1

2 1

[PATCH OLK-5.10] ipv6: prevent NULL dereference in ip6_output()
by Liu Jian 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.9 commit 4db783d68b9b39a411a96096c10828ff5dfada7a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UO9S CVE: CVE-2024-36901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 778d80be5269 ("ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Larysa Zaremba <larysa.zaremba(a)intel.com> Link: https://lore.kernel.org/r/20240507161842.773961-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/ipv6/ip6_output.c [Did not backport d289ab65b89c.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 6adf0b536473..6d9571cb317d 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -240,7 +240,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) skb->protocol = htons(ETH_P_IPV6); skb->dev = dev; - if (unlikely(idev->cnf.disable_ipv6)) { + if (unlikely(!idev || idev->cnf.disable_ipv6)) { IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb(skb); return 0; -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] ipv6: prevent NULL dereference in ip6_output()
by Liu Jian 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.9 commit 4db783d68b9b39a411a96096c10828ff5dfada7a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UO9S CVE: CVE-2024-36901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237 Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 4c 8b 74 24 28 0f 85 61 01 00 00 8b 1b 31 ff RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202 RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000 RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48 RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0 R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000 FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358 sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 778d80be5269 ("ipv6: Add disable_ipv6 sysctl to disable IPv6 operaion on specific interface.") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Larysa Zaremba <larysa.zaremba(a)intel.com> Link: https://lore.kernel.org/r/20240507161842.773961-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/ipv6/ip6_output.c [Did not backport d289ab65b89c.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index f30cc72887a3..f0c94aaa039f 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -234,7 +234,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) skb->protocol = htons(ETH_P_IPV6); skb->dev = dev; - if (unlikely(idev->cnf.disable_ipv6)) { + if (unlikely(!idev || idev->cnf.disable_ipv6)) { IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS); kfree_skb(skb); return 0; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] staging: rtl8712: fix use-after-free in rtl8712_dl_fw
by Jialin Zhang 08 Jun '24

08 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> mainline inclusion from mainline-v5.16-rc1 commit c052cc1a069c3e575619cf64ec427eb41176ca70 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RCV5 CVE: CVE-2021-47479 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Syzbot reported use-after-free in rtl8712_dl_fw(). The problem was in race condition between r871xu_dev_remove() ->ndo_open() callback. It's easy to see from crash log, that driver accesses released firmware in ->ndo_open() callback. It may happen, since driver was releasing firmware _before_ unregistering netdev. Fix it by moving unregister_netdev() before cleaning up resources. Call Trace: ... rtl871x_open_fw drivers/staging/rtl8712/hal_init.c:83 [inline] rtl8712_dl_fw+0xd95/0xe10 drivers/staging/rtl8712/hal_init.c:170 rtl8712_hal_init drivers/staging/rtl8712/hal_init.c:330 [inline] rtl871x_hal_init+0xae/0x180 drivers/staging/rtl8712/hal_init.c:394 netdev_open+0xe6/0x6c0 drivers/staging/rtl8712/os_intfs.c:380 __dev_open+0x2bc/0x4d0 net/core/dev.c:1484 Freed by task 1306: ... release_firmware+0x1b/0x30 drivers/base/firmware_loader/main.c:1053 r871xu_dev_remove+0xcc/0x2c0 drivers/staging/rtl8712/usb_intf.c:599 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 Fixes: 8c213fa59199 ("staging: r8712u: Use asynchronous firmware loading") Cc: stable <stable(a)vger.kernel.org> Reported-and-tested-by: syzbot+c55162be492189fb4f51(a)syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin(a)gmail.com> Link: https://lore.kernel.org/r/20211019211718.26354-1-paskripkin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/staging/rtl8712/usb_intf.c [The conflict occurs because commit b4383c971bc5("staging: rtl8712: handle firmware load failure") is not merged] Signed-off-by: Jialin Zhang <zhangjialin11(a)huawei.com> --- drivers/staging/rtl8712/usb_intf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c index 5e2cdc25401b..709d687180bf 100644 --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -623,13 +623,13 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf) if (pnetdev) { struct _adapter *padapter = netdev_priv(pnetdev); + unregister_netdev(pnetdev); /* will call netdev_close() */ usb_set_intfdata(pusb_intf, NULL); release_firmware(padapter->fw); /* never exit with a firmware callback pending */ wait_for_completion(&padapter->rtl8712_fw_ready); if (drvpriv.drv_registered) padapter->bSurpriseRemoved = true; - unregister_netdev(pnetdev); /* will call netdev_close() */ flush_scheduled_work(); udelay(1); /* Stop driver mlme relation timer */ -- 2.25.1

2 1

[PATCH OLK-6.6] tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
by Zhengchao Shao 08 Jun '24

08 Jun '24

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v6.6.31 commit 6e48faad92be13166184d21506e4e54c79c13adc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LA CVE: CVE-2024-36904 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f2db7230f73a80dbb179deab78f88a7947f0ab7e ] Anderson Nascimento reported a use-after-free splat in tcp_twsk_unique() with nice analysis. Since commit ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance"), inet_twsk_hashdance() sets TIME-WAIT socket's sk_refcnt after putting it into ehash and releasing the bucket lock. Thus, there is a small race window where other threads could try to reuse the port during connect() and call sock_hold() in tcp_twsk_unique() for the TIME-WAIT socket with zero refcnt. If that happens, the refcnt taken by tcp_twsk_unique() is overwritten and sock_put() will cause underflow, triggering a real use-after-free somewhere else. To avoid the use-after-free, we need to use refcount_inc_not_zero() in tcp_twsk_unique() and give up on reusing the port if it returns false. [0]: refcount_t: addition on 0; use-after-free. WARNING: CPU: 0 PID: 1039313 at lib/refcount.c:25 refcount_warn_saturate+0xe5/0x110 CPU: 0 PID: 1039313 Comm: trigger Not tainted 6.8.6-200.fc39.x86_64 #1 Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023 RIP: 0010:refcount_warn_saturate+0xe5/0x110 Code: 42 8e ff 0f 0b c3 cc cc cc cc 80 3d aa 13 ea 01 00 0f 85 5e ff ff ff 48 c7 c7 f8 8e b7 82 c6 05 96 13 ea 01 01 e8 7b 42 8e ff <0f> 0b c3 cc cc cc cc 48 c7 c7 50 8f b7 82 c6 05 7a 13 ea 01 01 e8 RSP: 0018:ffffc90006b43b60 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888009bb3ef0 RCX: 0000000000000027 RDX: ffff88807be218c8 RSI: 0000000000000001 RDI: ffff88807be218c0 RBP: 0000000000069d70 R08: 0000000000000000 R09: ffffc90006b439f0 R10: ffffc90006b439e8 R11: 0000000000000003 R12: ffff8880029ede84 R13: 0000000000004e20 R14: ffffffff84356dc0 R15: ffff888009bb3ef0 FS: 00007f62c10926c0(0000) GS:ffff88807be00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020ccb000 CR3: 000000004628c005 CR4: 0000000000f70ef0 PKRU: 55555554 Call Trace: <TASK> ? refcount_warn_saturate+0xe5/0x110 ? __warn+0x81/0x130 ? refcount_warn_saturate+0xe5/0x110 ? report_bug+0x171/0x1a0 ? refcount_warn_saturate+0xe5/0x110 ? handle_bug+0x3c/0x80 ? exc_invalid_op+0x17/0x70 ? asm_exc_invalid_op+0x1a/0x20 ? refcount_warn_saturate+0xe5/0x110 tcp_twsk_unique+0x186/0x190 __inet_check_established+0x176/0x2d0 __inet_hash_connect+0x74/0x7d0 ? __pfx___inet_check_established+0x10/0x10 tcp_v4_connect+0x278/0x530 __inet_stream_connect+0x10f/0x3d0 inet_stream_connect+0x3a/0x60 __sys_connect+0xa8/0xd0 __x64_sys_connect+0x18/0x20 do_syscall_64+0x83/0x170 entry_SYSCALL_64_after_hwframe+0x78/0x80 RIP: 0033:0x7f62c11a885d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a3 45 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007f62c1091e58 EFLAGS: 00000296 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000020ccb004 RCX: 00007f62c11a885d RDX: 0000000000000010 RSI: 0000000020ccb000 RDI: 0000000000000003 RBP: 00007f62c1091e90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 00007f62c10926c0 R13: ffffffffffffff88 R14: 0000000000000000 R15: 00007ffe237885b0 </TASK> Fixes: ec94c2696f0b ("tcp/dccp: avoid one atomic operation for timewait hashdance") Reported-by: Anderson Nascimento <anderson(a)allelesecurity.com> Closes: https://lore.kernel.org/netdev/37a477a6-d39e-486b-9577-3463f655a6b7@alleles… Suggested-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/20240501213145.62261-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/tcp_ipv4.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 39f324bdd576..fce757159ad5 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -154,6 +154,12 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) if (tcptw->tw_ts_recent_stamp && (!twp || (reuse && time_after32(ktime_get_seconds(), tcptw->tw_ts_recent_stamp)))) { + /* inet_twsk_hashdance() sets sk_refcnt after putting twsk + * and releasing the bucket lock. + */ + if (unlikely(!refcount_inc_not_zero(&sktw->sk_refcnt))) + return 0; + /* In case of repair and re-using TIME-WAIT sockets we still * want to be sure that it is safe as above but honor the * sequence numbers and time stamps set as part of the repair @@ -174,7 +180,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp) tp->rx_opt.ts_recent = tcptw->tw_ts_recent; tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp; } - sock_hold(sktw); + return 1; } -- 2.34.1

2 1

[PATCH OLK-6.6 v2] blk-iocost: do not WARN if iocg was already offlined
by Li Nan 08 Jun '24

08 Jun '24

mainline inclusion from mainline-v6.9-rc5 commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UABH CVE: CVE-2024-36908 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk. Signed-off-by: Li Nan <linan122(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflict: block/blk-iocost.c Mainline checks 'pd.online', but there is no member online of pd in 5.10. Check 'iocg->online' instead. Signed-off-by: Li Nan <linan122(a)huawei.com> --- v2: fix bugzilla block/blk-iocost.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 6a3e8a21c0fc..3b9710ce77e5 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1439,8 +1439,11 @@ static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay, lockdep_assert_held(&iocg->ioc->lock); lockdep_assert_held(&iocg->waitq.lock); - /* make sure that nobody messed with @iocg */ - WARN_ON_ONCE(list_empty(&iocg->active_list)); + /* + * make sure that nobody messed with @iocg. Check iocg->online + * to avoid warn when removing blkcg or disk. + */ + WARN_ON_ONCE(list_empty(&iocg->active_list) && iocg->online); WARN_ON_ONCE(iocg->inuse > 1); iocg->abs_vdebt -= min(abs_vpay, iocg->abs_vdebt); -- 2.39.2

2 1

[PATCH OLK-6.6] blk-iocost: do not WARN if iocg was already offlined
by Li Nan 08 Jun '24

08 Jun '24

mainline inclusion from mainline-v6.9-rc5 commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 category: bugfix bugzilla: 189809 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk. Signed-off-by: Li Nan <linan122(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflict: block/blk-iocost.c Mainline checks 'pd.online', but there is no member online of pd in 5.10. Check 'iocg->online' instead. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 6a3e8a21c0fc..3b9710ce77e5 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1439,8 +1439,11 @@ static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay, lockdep_assert_held(&iocg->ioc->lock); lockdep_assert_held(&iocg->waitq.lock); - /* make sure that nobody messed with @iocg */ - WARN_ON_ONCE(list_empty(&iocg->active_list)); + /* + * make sure that nobody messed with @iocg. Check iocg->online + * to avoid warn when removing blkcg or disk. + */ + WARN_ON_ONCE(list_empty(&iocg->active_list) && iocg->online); WARN_ON_ONCE(iocg->inuse > 1); iocg->abs_vdebt -= min(abs_vpay, iocg->abs_vdebt); -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] blk-iocost: do not WARN if iocg was already offlined
by Li Nan 08 Jun '24

08 Jun '24

mainline inclusion from mainline-v6.9-rc5 commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UABH CVE: CVE-2024-36908 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk. Signed-off-by: Li Nan <linan122(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflict: block/blk-iocost.c Mainline checks 'pd.online', but there is no member online of pd in 5.10. Check 'iocg->online' instead. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index edab843d547a..2b3bbae302e2 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1401,8 +1401,11 @@ static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay, lockdep_assert_held(&iocg->ioc->lock); lockdep_assert_held(&iocg->waitq.lock); - /* make sure that nobody messed with @iocg */ - WARN_ON_ONCE(list_empty(&iocg->active_list)); + /* + * make sure that nobody messed with @iocg. Check iocg->online + * to avoid warn when removing blkcg or disk. + */ + WARN_ON_ONCE(list_empty(&iocg->active_list) && iocg->online); WARN_ON_ONCE(iocg->inuse > 1); iocg->abs_vdebt -= min(abs_vpay, iocg->abs_vdebt); -- 2.39.2

2 1

[PATCH OLK-5.10] blk-iocost: do not WARN if iocg was already offlined
by Li Nan 08 Jun '24

08 Jun '24

mainline inclusion from mainline-v6.9-rc5 commit 01bc4fda9ea0a6b52f12326486f07a4910666cf6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UABH CVE: CVE-2024-36908 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In iocg_pay_debt(), warn is triggered if 'active_list' is empty, which is intended to confirm iocg is active when it has debt. However, warn can be triggered during a blkcg or disk removal, if iocg_waitq_timer_fn() is run at that time: WARNING: CPU: 0 PID: 2344971 at block/blk-iocost.c:1402 iocg_pay_debt+0x14c/0x190 Call trace: iocg_pay_debt+0x14c/0x190 iocg_kick_waitq+0x438/0x4c0 iocg_waitq_timer_fn+0xd8/0x130 __run_hrtimer+0x144/0x45c __hrtimer_run_queues+0x16c/0x244 hrtimer_interrupt+0x2cc/0x7b0 The warn in this situation is meaningless. Since this iocg is being removed, the state of the 'active_list' is irrelevant, and 'waitq_timer' is canceled after removing 'active_list' in ioc_pd_free(), which ensures iocg is freed after iocg_waitq_timer_fn() returns. Therefore, add the check if iocg was already offlined to avoid warn when removing a blkcg or disk. Signed-off-by: Li Nan <linan122(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240419093257.3004211-1-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflict: block/blk-iocost.c Mainline checks 'pd.online', but there is no member online of pd in 5.10. Check 'iocg->online' instead. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index edab843d547a..2b3bbae302e2 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1401,8 +1401,11 @@ static void iocg_pay_debt(struct ioc_gq *iocg, u64 abs_vpay, lockdep_assert_held(&iocg->ioc->lock); lockdep_assert_held(&iocg->waitq.lock); - /* make sure that nobody messed with @iocg */ - WARN_ON_ONCE(list_empty(&iocg->active_list)); + /* + * make sure that nobody messed with @iocg. Check iocg->online + * to avoid warn when removing blkcg or disk. + */ + WARN_ON_ONCE(list_empty(&iocg->active_list) && iocg->online); WARN_ON_ONCE(iocg->inuse > 1); iocg->abs_vdebt -= min(abs_vpay, iocg->abs_vdebt); -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] net/smc: avoid data corruption caused by decline
by Liu Jian 08 Jun '24

08 Jun '24

From: "D. Wythe" <alibuda(a)linux.alibaba.com> stable inclusion from stable-v5.10.203 commit 5ada292b5c504720a0acef8cae9acc62a694d19c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4L7 CVE: CVE-2023-52775 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit e6d71b437abc2f249e3b6a1ae1a7228e09c6e563 ] We found a data corruption issue during testing of SMC-R on Redis applications. The benchmark has a low probability of reporting a strange error as shown below. "Error: Protocol error, got "\xe2" as reply type byte" Finally, we found that the retrieved error data was as follows: 0xE2 0xD4 0xC3 0xD9 0x04 0x00 0x2C 0x20 0xA6 0x56 0x00 0x16 0x3E 0x0C 0xCB 0x04 0x02 0x01 0x00 0x00 0x20 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xE2 It is quite obvious that this is a SMC DECLINE message, which means that the applications received SMC protocol message. We found that this was caused by the following situations: client server ¦ clc proposal -------------> ¦ clc accept <------------- ¦ clc confirm -------------> wait llc confirm send llc confirm ¦failed llc confirm ¦ x------ (after 2s)timeout wait llc confirm rsp wait decline (after 1s) timeout (after 2s) timeout ¦ decline --------------> ¦ decline <-------------- As a result, a decline message was sent in the implementation, and this message was read from TCP by the already-fallback connection. This patch double the client timeout as 2x of the server value, With this simple change, the Decline messages should never cross or collide (during Confirm link timeout). This issue requires an immediate solution, since the protocol updates involve a more long-term solution. Fixes: 0fb0b02bd6fd ("net/smc: adapt SMC client code to use the LLC flow") Signed-off-by: D. Wythe <alibuda(a)linux.alibaba.com> Reviewed-by: Wen Gu <guwen(a)linux.alibaba.com> Reviewed-by: Wenjia Zhang <wenjia(a)linux.ibm.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: sanglipeng <sanglipeng1(a)jd.com> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/smc/af_smc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 41cbc7c89c9d..f277e5fc8056 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -396,8 +396,12 @@ static int smcr_clnt_conf_first_link(struct smc_sock *smc) struct smc_llc_qentry *qentry; int rc; - /* receive CONFIRM LINK request from server over RoCE fabric */ - qentry = smc_llc_wait(link->lgr, NULL, SMC_LLC_WAIT_TIME, + /* Receive CONFIRM LINK request from server over RoCE fabric. + * Increasing the client's timeout by twice as much as the server's + * timeout by default can temporarily avoid decline messages of + * both sides crossing or colliding + */ + qentry = smc_llc_wait(link->lgr, NULL, 2 * SMC_LLC_WAIT_TIME, SMC_LLC_CONFIRM_LINK); if (!qentry) { struct smc_clc_msg_decline dclc; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] PCI/PM: Drain runtime-idle callbacks before driver removal
by Jialin Zhang 08 Jun '24

08 Jun '24

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> stable inclusion from stable-v4.19.312 commit 9a87375bb586515c0af63d5dcdcd58ec4acf20a6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q91J CVE: CVE-2024-35809 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 9d5286d4e7f68beab450deddbb6a32edd5ecf4bf ] A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1]. The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns. However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited). Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.] One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime PM callbacks from being invoked) to wait for the .runtime_idle() callback to complete should it be running at that point. A suitable place for doing that is in pci_device_remove() which calls pm_runtime_get_sync() before removing the driver, so it may as well call pm_runtime_barrier() subsequently, which will prevent the race in question from occurring, not just in the rtsx_pcr driver, but in any PCI drivers providing .runtime_idle() callbacks. Link: https://lore.kernel.org/lkml/20240229062201.49500-1-kai.heng.feng@canonical… # [1] Link: https://lore.kernel.org/r/5761426.DvuYhMxLoT@kreacher Reported-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Tested-by: Ricky Wu <ricky_wu(a)realtek.com> Acked-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/pci/pci-driver.c [The conflict occurs because commit 064300ccb0e2("PCI: Drop pci_device_remove() test of pci_dev->driver") is not merged] Signed-off-by: Jialin Zhang <zhangjialin11(a)huawei.com> --- drivers/pci/pci-driver.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 9329f4881d42..dc33bad9f106 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -442,6 +442,13 @@ static int pci_device_remove(struct device *dev) if (drv) { if (drv->remove) { pm_runtime_get_sync(dev); + /* + * If the driver provides a .runtime_idle() callback and it has + * started to run already, it may continue to run in parallel + * with the code below, so wait until all of the runtime PM + * activity has completed. + */ + pm_runtime_barrier(dev); drv->remove(pci_dev); pm_runtime_put_noidle(dev); } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] PCI/PM: Drain runtime-idle callbacks before driver removal
by Jialin Zhang 08 Jun '24

08 Jun '24

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> stable inclusion from stable-v5.10.215 commit bbe068b24409ef740657215605284fc7cdddd491 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q91J CVE: CVE-2024-35809 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 9d5286d4e7f68beab450deddbb6a32edd5ecf4bf ] A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1]. The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns. However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited). Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.] One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime PM callbacks from being invoked) to wait for the .runtime_idle() callback to complete should it be running at that point. A suitable place for doing that is in pci_device_remove() which calls pm_runtime_get_sync() before removing the driver, so it may as well call pm_runtime_barrier() subsequently, which will prevent the race in question from occurring, not just in the rtsx_pcr driver, but in any PCI drivers providing .runtime_idle() callbacks. Link: https://lore.kernel.org/lkml/20240229062201.49500-1-kai.heng.feng@canonical… # [1] Link: https://lore.kernel.org/r/5761426.DvuYhMxLoT@kreacher Reported-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Tested-by: Ricky Wu <ricky_wu(a)realtek.com> Acked-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/pci/pci-driver.c [The conflict occurs because commit 39f7310eaa79("PCI: Drop pci_device_remove() test of pci_dev->driver") is not merged] Signed-off-by: Jialin Zhang <zhangjialin11(a)huawei.com> --- drivers/pci/pci-driver.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 79aa5a4b61c5..b740a7dc7fcd 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -447,6 +447,13 @@ static int pci_device_remove(struct device *dev) if (drv) { if (drv->remove) { pm_runtime_get_sync(dev); + /* + * If the driver provides a .runtime_idle() callback and it has + * started to run already, it may continue to run in parallel + * with the code below, so wait until all of the runtime PM + * activity has completed. + */ + pm_runtime_barrier(dev); drv->remove(pci_dev); pm_runtime_put_noidle(dev); } -- 2.25.1

2 1

[PATCH OLK-5.10] PCI/PM: Drain runtime-idle callbacks before driver removal
by Jialin Zhang 08 Jun '24

08 Jun '24

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> stable inclusion from stable-v5.10.215 commit bbe068b24409ef740657215605284fc7cdddd491 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q91J CVE: CVE-2024-35809 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 9d5286d4e7f68beab450deddbb6a32edd5ecf4bf ] A race condition between the .runtime_idle() callback and the .remove() callback in the rtsx_pcr PCI driver leads to a kernel crash due to an unhandled page fault [1]. The problem is that rtsx_pci_runtime_idle() is not expected to be running after pm_runtime_get_sync() has been called, but the latter doesn't really guarantee that. It only guarantees that the suspend and resume callbacks will not be running when it returns. However, if a .runtime_idle() callback is already running when pm_runtime_get_sync() is called, the latter will notice that the runtime PM status of the device is RPM_ACTIVE and it will return right away without waiting for the former to complete. In fact, it cannot wait for .runtime_idle() to complete because it may be called from that callback (it arguably does not make much sense to do that, but it is not strictly prohibited). Thus in general, whoever is providing a .runtime_idle() callback needs to protect it from running in parallel with whatever code runs after pm_runtime_get_sync(). [Note that .runtime_idle() will not start after pm_runtime_get_sync() has returned, but it may continue running then if it has started earlier.] One way to address that race condition is to call pm_runtime_barrier() after pm_runtime_get_sync() (not before it, because a nonzero value of the runtime PM usage counter is necessary to prevent runtime PM callbacks from being invoked) to wait for the .runtime_idle() callback to complete should it be running at that point. A suitable place for doing that is in pci_device_remove() which calls pm_runtime_get_sync() before removing the driver, so it may as well call pm_runtime_barrier() subsequently, which will prevent the race in question from occurring, not just in the rtsx_pcr driver, but in any PCI drivers providing .runtime_idle() callbacks. Link: https://lore.kernel.org/lkml/20240229062201.49500-1-kai.heng.feng@canonical… # [1] Link: https://lore.kernel.org/r/5761426.DvuYhMxLoT@kreacher Reported-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com> Tested-by: Ricky Wu <ricky_wu(a)realtek.com> Acked-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/pci/pci-driver.c [The conflict occurs because commit 39f7310eaa79("PCI: Drop pci_device_remove() test of pci_dev->driver") is not merged] Signed-off-by: Jialin Zhang <zhangjialin11(a)huawei.com> --- drivers/pci/pci-driver.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 6eaaf4231635..606e4a083337 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -447,6 +447,13 @@ static int pci_device_remove(struct device *dev) if (drv) { if (drv->remove) { pm_runtime_get_sync(dev); + /* + * If the driver provides a .runtime_idle() callback and it has + * started to run already, it may continue to run in parallel + * with the code below, so wait until all of the runtime PM + * activity has completed. + */ + pm_runtime_barrier(dev); drv->remove(pci_dev); pm_runtime_put_noidle(dev); } -- 2.25.1

2 1

[PATCH OLK-5.10 0/2] CVE
by liwei 08 Jun '24

08 Jun '24

CVE-2024-35830 CVE-2024-36919 Alexander Stein (1): media: tc358743: register v4l2 async device only after successful setup Saurav Kashyap (1): scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload drivers/media/i2c/tc358743.c | 7 ++++--- drivers/scsi/bnx2fc/bnx2fc_tgt.c | 2 -- 2 files changed, 4 insertions(+), 5 deletions(-) -- 2.25.1

2 3

[PATCH openEuler-22.03-LTS-SP1 0/2] CVE
by liwei 08 Jun '24

08 Jun '24

CVE-2024-35830 CVE-2024-36919 Alexander Stein (1): media: tc358743: register v4l2 async device only after successful setup Saurav Kashyap (1): scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload drivers/media/i2c/tc358743.c | 7 ++++--- drivers/scsi/bnx2fc/bnx2fc_tgt.c | 2 -- 2 files changed, 4 insertions(+), 5 deletions(-) -- 2.25.1

2 3

[PATCH OLK-6.6] scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload
by liwei 08 Jun '24

08 Jun '24

From: Saurav Kashyap <skashyap(a)marvell.com> mainline inclusion from mainline-v6.9-rc2 commit c214ed2a4dda35b308b0b28eed804d7ae66401f9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U91D CVE: CVE-2024-36919 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as these fields won't be used any longer. The offload and upload calls are sequential, hence lock is not required. This will suppress following BUG_ON(): [ 449.843143] ------------[ cut here ]------------ [ 449.848302] kernel BUG at mm/vmalloc.c:2727! [ 449.853072] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 449.858712] CPU: 5 PID: 1996 Comm: kworker/u24:2 Not tainted 5.14.0-118.el9.x86_64 #1 Rebooting. [ 449.867454] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.3.4 11/08/2016 [ 449.876966] Workqueue: fc_rport_eq fc_rport_work [libfc] [ 449.882910] RIP: 0010:vunmap+0x2e/0x30 [ 449.887098] Code: 00 65 8b 05 14 a2 f0 4a a9 00 ff ff 00 75 1b 55 48 89 fd e8 34 36 79 00 48 85 ed 74 0b 48 89 ef 31 f6 5d e9 14 fc ff ff 5d c3 <0f> 0b 0f 1f 44 00 00 41 57 41 56 49 89 ce 41 55 49 89 fd 41 54 41 [ 449.908054] RSP: 0018:ffffb83d878b3d68 EFLAGS: 00010206 [ 449.913887] RAX: 0000000080000201 RBX: ffff8f4355133550 RCX: 000000000d400005 [ 449.921843] RDX: 0000000000000001 RSI: 0000000000001000 RDI: ffffb83da53f5000 [ 449.929808] RBP: ffff8f4ac6675800 R08: ffffb83d878b3d30 R09: 00000000000efbdf [ 449.937774] R10: 0000000000000003 R11: ffff8f434573e000 R12: 0000000000001000 [ 449.945736] R13: 0000000000001000 R14: ffffb83da53f5000 R15: ffff8f43d4ea3ae0 [ 449.953701] FS: 0000000000000000(0000) GS:ffff8f529fc80000(0000) knlGS:0000000000000000 [ 449.962732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 449.969138] CR2: 00007f8cf993e150 CR3: 0000000efbe10003 CR4: 00000000003706e0 [ 449.977102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 449.985065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 449.993028] Call Trace: [ 449.995756] __iommu_dma_free+0x96/0x100 [ 450.000139] bnx2fc_free_session_resc+0x67/0x240 [bnx2fc] [ 450.006171] bnx2fc_upload_session+0xce/0x100 [bnx2fc] [ 450.011910] bnx2fc_rport_event_handler+0x9f/0x240 [bnx2fc] [ 450.018136] fc_rport_work+0x103/0x5b0 [libfc] [ 450.023103] process_one_work+0x1e8/0x3c0 [ 450.027581] worker_thread+0x50/0x3b0 [ 450.031669] ? rescuer_thread+0x370/0x370 [ 450.036143] kthread+0x149/0x170 [ 450.039744] ? set_kthread_struct+0x40/0x40 [ 450.044411] ret_from_fork+0x22/0x30 [ 450.048404] Modules linked in: vfat msdos fat xfs nfs_layout_nfsv41_files rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver dm_service_time qedf qed crc8 bnx2fc libfcoe libfc scsi_transport_fc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp dcdbas rapl intel_cstate intel_uncore mei_me pcspkr mei ipmi_ssif lpc_ich ipmi_si fuse zram ext4 mbcache jbd2 loop nfsv3 nfs_acl nfs lockd grace fscache netfs irdma ice sd_mod t10_pi sg ib_uverbs ib_core 8021q garp mrp stp llc mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt mxm_wmi fb_sys_fops cec crct10dif_pclmul ahci crc32_pclmul bnx2x drm ghash_clmulni_intel libahci rfkill i40e libata megaraid_sas mdio wmi sunrpc lrw dm_crypt dm_round_robin dm_multipath dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_zero dm_mod linear raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid6_pq libcrc32c crc32c_intel raid1 raid0 iscsi_ibft squashfs be2iscsi bnx2i cnic uio cxgb4i cxgb4 tls [ 450.048497] libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi edd ipmi_devintf ipmi_msghandler [ 450.159753] ---[ end trace 712de2c57c64abc8 ]--- Reported-by: Guangwu Zhang <guazhang(a)redhat.com> Signed-off-by: Saurav Kashyap <skashyap(a)marvell.com> Signed-off-by: Nilesh Javali <njavali(a)marvell.com> Link: https://lore.kernel.org/r/20240315071427.31842-1-skashyap@marvell.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: liwei <liwei728(a)huawei.com> --- drivers/scsi/bnx2fc/bnx2fc_tgt.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c index 2c246e80c1c4..d91659811eb3 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c +++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c @@ -833,7 +833,6 @@ static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba, BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n"); - spin_lock_bh(&tgt->cq_lock); ctx_base_ptr = tgt->ctx_base; tgt->ctx_base = NULL; @@ -889,7 +888,6 @@ static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba, tgt->sq, tgt->sq_dma); tgt->sq = NULL; } - spin_unlock_bh(&tgt->cq_lock); if (ctx_base_ptr) iounmap(ctx_base_ptr); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/3] CVE
by liwei 08 Jun '24

08 Jun '24

CVE-2024-35830 CVE-2024-36919 CVE-2021-47288 Alexander Stein (1): media: tc358743: register v4l2 async device only after successful setup Gustavo A. R. Silva (1): media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf() Saurav Kashyap (1): scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload drivers/media/i2c/tc358743.c | 7 ++++--- drivers/media/pci/ngene/ngene-core.c | 2 +- drivers/media/pci/ngene/ngene.h | 14 ++++++++------ drivers/scsi/bnx2fc/bnx2fc_tgt.c | 2 -- 4 files changed, 13 insertions(+), 12 deletions(-) -- 2.25.1

2 4

[PATCH openEuler-1.0-LTS] ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
by Zhengchao Shao 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v4.19.314 commit 4a5a573387da6a6b23a4cc62147453ff1bc32afa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM8A CVE: CVE-2024-36902 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d101291b2681e5ab938554e3e323f7a7ee33e3aa ] syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 5e5f3f0f8013 ("[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: David Ahern <dsahern(a)kernel.org> Link: https://lore.kernel.org/r/20240507163145.835254-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv6/fib6_rules.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index f590446595d8..19ab1a26e3d6 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -232,8 +232,12 @@ static int __fib6_rule_action(struct fib_rule *rule, struct flowi *flp, rt = lookup(net, table, flp6, arg->lookup_data, flags); if (rt != net->ipv6.ip6_null_entry) { + struct inet6_dev *idev = ip6_dst_idev(&rt->dst); + + if (!idev) + goto again; err = fib6_rule_saddr(net, rule, flags, flp6, - ip6_dst_idev(&rt->dst)->dev); + idev->dev); if (err == -EAGAIN) goto again; -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
by Zhengchao Shao 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v5.10.217 commit 674c951ab8a23f7aff9b4c3f2f865901bc76a290 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM8A CVE: CVE-2024-36902 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d101291b2681e5ab938554e3e323f7a7ee33e3aa ] syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 5e5f3f0f8013 ("[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: David Ahern <dsahern(a)kernel.org> Link: https://lore.kernel.org/r/20240507163145.835254-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv6/fib6_rules.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 3e4c87b29b11..a4276e40a429 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -232,8 +232,12 @@ static int __fib6_rule_action(struct fib_rule *rule, struct flowi *flp, rt = pol_lookup_func(lookup, net, table, flp6, arg->lookup_data, flags); if (rt != net->ipv6.ip6_null_entry) { + struct inet6_dev *idev = ip6_dst_idev(&rt->dst); + + if (!idev) + goto again; err = fib6_rule_saddr(net, rule, flags, flp6, - ip6_dst_idev(&rt->dst)->dev); + idev->dev); if (err == -EAGAIN) goto again; -- 2.34.1

2 1

[PATCH OLK-5.10] ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
by Zhengchao Shao 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v5.10.217 commit 674c951ab8a23f7aff9b4c3f2f865901bc76a290 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM8A CVE: CVE-2024-36902 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d101291b2681e5ab938554e3e323f7a7ee33e3aa ] syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 5e5f3f0f8013 ("[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: David Ahern <dsahern(a)kernel.org> Link: https://lore.kernel.org/r/20240507163145.835254-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv6/fib6_rules.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 3e4c87b29b11..a4276e40a429 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -232,8 +232,12 @@ static int __fib6_rule_action(struct fib_rule *rule, struct flowi *flp, rt = pol_lookup_func(lookup, net, table, flp6, arg->lookup_data, flags); if (rt != net->ipv6.ip6_null_entry) { + struct inet6_dev *idev = ip6_dst_idev(&rt->dst); + + if (!idev) + goto again; err = fib6_rule_saddr(net, rule, flags, flp6, - ip6_dst_idev(&rt->dst)->dev); + idev->dev); if (err == -EAGAIN) goto again; -- 2.34.1

2 1

[PATCH OLK-6.6] ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()
by Zhengchao Shao 08 Jun '24

08 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v6.6.31 commit 8745a8d74ba17dafe72b6ab461fa6c007d879747 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM8A CVE: CVE-2024-36902 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d101291b2681e5ab938554e3e323f7a7ee33e3aa ] syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__fib6_rule_action net/ipv6/fib6_rules.c:237 [inline] RIP: 0010:fib6_rule_action+0x241/0x7b0 net/ipv6/fib6_rules.c:267 Code: 02 00 00 49 8d 9f d8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 32 bf f7 48 8b 1b 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 e0 32 bf f7 4c 8b 03 48 89 ef 4c RSP: 0018:ffffc9000fc1f2f0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1a772f98c8186700 RDX: 0000000000000003 RSI: ffffffff8bcac4e0 RDI: ffffffff8c1f9760 RBP: ffff8880673fb980 R08: ffffffff8fac15ef R09: 1ffffffff1f582bd R10: dffffc0000000000 R11: fffffbfff1f582be R12: dffffc0000000000 R13: 0000000000000080 R14: ffff888076509000 R15: ffff88807a029a00 FS: 00007f55e82ca6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d23000 CR3: 0000000022b66000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:317 fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:108 ip6_route_output_flags_noref net/ipv6/route.c:2637 [inline] ip6_route_output_flags+0x38e/0x610 net/ipv6/route.c:2649 ip6_route_output include/net/ip6_route.h:93 [inline] ip6_dst_lookup_tail+0x189/0x11a0 net/ipv6/ip6_output.c:1120 ip6_dst_lookup_flow+0xb9/0x180 net/ipv6/ip6_output.c:1250 sctp_v6_get_dst+0x792/0x1e20 net/sctp/ipv6.c:326 sctp_transport_route+0x12c/0x2e0 net/sctp/transport.c:455 sctp_assoc_add_peer+0x614/0x15c0 net/sctp/associola.c:662 sctp_connect_new_asoc+0x31d/0x6c0 net/sctp/socket.c:1099 __sctp_connect+0x66d/0xe30 net/sctp/socket.c:1197 sctp_connect net/sctp/socket.c:4819 [inline] sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Fixes: 5e5f3f0f8013 ("[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: David Ahern <dsahern(a)kernel.org> Link: https://lore.kernel.org/r/20240507163145.835254-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv6/fib6_rules.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index be52b18e08a6..6eeab21512ba 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -233,8 +233,12 @@ static int __fib6_rule_action(struct fib_rule *rule, struct flowi *flp, rt = pol_lookup_func(lookup, net, table, flp6, arg->lookup_data, flags); if (rt != net->ipv6.ip6_null_entry) { + struct inet6_dev *idev = ip6_dst_idev(&rt->dst); + + if (!idev) + goto again; err = fib6_rule_saddr(net, rule, flags, flp6, - ip6_dst_idev(&rt->dst)->dev); + idev->dev); if (err == -EAGAIN) goto again; -- 2.34.1

2 1

[openeuler:openEuler-1.0-LTS 18949/22827] mm/khugepaged.c:974:21: sparse: sparse: invalid assignment: |=
by kernel test robot 08 Jun '24

08 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 6a98543755cf2f636ae3169f3774d226d328d2cf commit: ff0fb9e816fac221fa24a1810dd895745406070b [18949/22827] mm: thp: Add memory reliable support for hugepaged collapse config: arm64-randconfig-r123-20240607 (https://download.01.org/0day-ci/archive/20240608/202406081538.GZO9E4bP-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240608/202406081538.GZO9E4bP-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406081538.GZO9E4bP-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/khugepaged.c:974:21: sparse: sparse: invalid assignment: |= mm/khugepaged.c:974:21: sparse: left side has type restricted gfp_t mm/khugepaged.c:974:21: sparse: right side has type unsigned int mm/khugepaged.c:1352:21: sparse: sparse: invalid assignment: |= mm/khugepaged.c:1352:21: sparse: left side has type restricted gfp_t mm/khugepaged.c:1352:21: sparse: right side has type unsigned int mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1409:56: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1409:56: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1409:56: sparse: got void **slot mm/khugepaged.c:1458:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1458:22: sparse: expected void **slot mm/khugepaged.c:1458:22: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1459:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1459:17: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1459:17: sparse: got void **slot mm/khugepaged.c:1483:60: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1483:60: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1483:60: sparse: got void **slot mm/khugepaged.c:1486:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1486:47: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1486:47: sparse: got void **slot mm/khugepaged.c:1486:22: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1486:22: sparse: expected void **slot mm/khugepaged.c:1486:22: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1378:9: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1378:9: sparse: got void **slot mm/khugepaged.c:1378:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1378:9: sparse: expected void **slot mm/khugepaged.c:1378:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1597:68: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1597:68: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1597:68: sparse: got void **slot mm/khugepaged.c:1598:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1598:55: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1598:55: sparse: got void **slot mm/khugepaged.c:1598:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1598:30: sparse: expected void **slot mm/khugepaged.c:1598:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1578:17: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1578:17: sparse: got void **slot mm/khugepaged.c:1578:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1578:17: sparse: expected void **slot mm/khugepaged.c:1578:17: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1637:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1637:46: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1637:46: sparse: got void **slot mm/khugepaged.c:1639:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1639:30: sparse: expected void **slot mm/khugepaged.c:1639:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1682:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1682:55: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1682:55: sparse: got void **slot mm/khugepaged.c:1682:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1682:30: sparse: expected void **slot mm/khugepaged.c:1682:30: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] <asn:4> **slot @@ got void **slot @@ mm/khugepaged.c:1633:9: sparse: expected void [noderef] <asn:4> **slot mm/khugepaged.c:1633:9: sparse: got void **slot mm/khugepaged.c:1633:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void **slot @@ got void [noderef] <asn:4> ** @@ mm/khugepaged.c:1633:9: sparse: expected void **slot mm/khugepaged.c:1633:9: sparse: got void [noderef] <asn:4> ** mm/khugepaged.c: note: in included file (through include/linux/mm.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/khugepaged.c:1336: warning: Function parameter or member 'mm' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'mapping' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'start' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'hpage' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'node' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'reliable' not described in 'collapse_shmem' vim +974 mm/khugepaged.c 949 950 static void collapse_huge_page(struct mm_struct *mm, 951 unsigned long address, 952 struct page **hpage, 953 int node, int referenced, int unmapped, 954 bool reliable) 955 { 956 pmd_t *pmd, _pmd; 957 pte_t *pte; 958 pgtable_t pgtable; 959 struct page *new_page; 960 spinlock_t *pmd_ptl, *pte_ptl; 961 int isolated = 0, result = 0; 962 struct mem_cgroup *memcg; 963 struct vm_area_struct *vma; 964 unsigned long mmun_start; /* For mmu_notifiers */ 965 unsigned long mmun_end; /* For mmu_notifiers */ 966 gfp_t gfp; 967 968 VM_BUG_ON(address & ~HPAGE_PMD_MASK); 969 970 /* Only allocate from the target node */ 971 gfp = alloc_hugepage_khugepaged_gfpmask() | __GFP_THISNODE; 972 973 if (reliable) > 974 gfp |= ___GFP_RELIABILITY; 975 976 /* 977 * Before allocating the hugepage, release the mmap_sem read lock. 978 * The allocation can take potentially a long time if it involves 979 * sync compaction, and we do not need to hold the mmap_sem during 980 * that. We will recheck the vma after taking it again in write mode. 981 */ 982 up_read(&mm->mmap_sem); 983 new_page = khugepaged_alloc_page(hpage, gfp, node); 984 if (!new_page) { 985 result = SCAN_ALLOC_HUGE_PAGE_FAIL; 986 goto out_nolock; 987 } 988 989 if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) { 990 result = SCAN_CGROUP_CHARGE_FAIL; 991 goto out_nolock; 992 } 993 994 down_read(&mm->mmap_sem); 995 result = hugepage_vma_revalidate(mm, address, &vma); 996 if (result) { 997 mem_cgroup_cancel_charge(new_page, memcg, true); 998 up_read(&mm->mmap_sem); 999 goto out_nolock; 1000 } 1001 1002 pmd = mm_find_pmd(mm, address); 1003 if (!pmd) { 1004 result = SCAN_PMD_NULL; 1005 mem_cgroup_cancel_charge(new_page, memcg, true); 1006 up_read(&mm->mmap_sem); 1007 goto out_nolock; 1008 } 1009 1010 /* 1011 * __collapse_huge_page_swapin always returns with mmap_sem locked. 1012 * If it fails, we release mmap_sem and jump out_nolock. 1013 * Continuing to collapse causes inconsistency. 1014 */ 1015 if (unmapped && !__collapse_huge_page_swapin(mm, vma, address, 1016 pmd, referenced)) { 1017 mem_cgroup_cancel_charge(new_page, memcg, true); 1018 up_read(&mm->mmap_sem); 1019 goto out_nolock; 1020 } 1021 1022 up_read(&mm->mmap_sem); 1023 /* 1024 * Prevent all access to pagetables with the exception of 1025 * gup_fast later handled by the ptep_clear_flush and the VM 1026 * handled by the anon_vma lock + PG_lock. 1027 */ 1028 down_write(&mm->mmap_sem); 1029 result = hugepage_vma_revalidate(mm, address, &vma); 1030 if (result) 1031 goto out; 1032 /* check if the pmd is still valid */ 1033 if (mm_find_pmd(mm, address) != pmd) 1034 goto out; 1035 1036 anon_vma_lock_write(vma->anon_vma); 1037 1038 pte = pte_offset_map(pmd, address); 1039 pte_ptl = pte_lockptr(mm, pmd); 1040 1041 mmun_start = address; 1042 mmun_end = address + HPAGE_PMD_SIZE; 1043 mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end); 1044 pmd_ptl = pmd_lock(mm, pmd); /* probably unnecessary */ 1045 /* 1046 * After this gup_fast can't run anymore. This also removes 1047 * any huge TLB entry from the CPU so we won't allow 1048 * huge and small TLB entries for the same virtual address 1049 * to avoid the risk of CPU bugs in that area. 1050 */ 1051 _pmd = pmdp_collapse_flush(vma, address, pmd); 1052 spin_unlock(pmd_ptl); 1053 mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end); 1054 1055 spin_lock(pte_ptl); 1056 isolated = __collapse_huge_page_isolate(vma, address, pte); 1057 spin_unlock(pte_ptl); 1058 1059 if (unlikely(!isolated)) { 1060 pte_unmap(pte); 1061 spin_lock(pmd_ptl); 1062 BUG_ON(!pmd_none(*pmd)); 1063 /* 1064 * We can only use set_pmd_at when establishing 1065 * hugepmds and never for establishing regular pmds that 1066 * points to regular pagetables. Use pmd_populate for that 1067 */ 1068 pmd_populate(mm, pmd, pmd_pgtable(_pmd)); 1069 spin_unlock(pmd_ptl); 1070 anon_vma_unlock_write(vma->anon_vma); 1071 result = SCAN_FAIL; 1072 goto out; 1073 } 1074 1075 /* 1076 * All pages are isolated and locked so anon_vma rmap 1077 * can't run anymore. 1078 */ 1079 anon_vma_unlock_write(vma->anon_vma); 1080 1081 __collapse_huge_page_copy(pte, new_page, vma, address, pte_ptl); 1082 pte_unmap(pte); 1083 __SetPageUptodate(new_page); 1084 pgtable = pmd_pgtable(_pmd); 1085 1086 _pmd = mk_huge_pmd(new_page, vma->vm_page_prot); 1087 _pmd = maybe_pmd_mkwrite(pmd_mkdirty(_pmd), vma); 1088 1089 /* 1090 * spin_lock() below is not the equivalent of smp_wmb(), so 1091 * this is needed to avoid the copy_huge_page writes to become 1092 * visible after the set_pmd_at() write. 1093 */ 1094 smp_wmb(); 1095 1096 spin_lock(pmd_ptl); 1097 BUG_ON(!pmd_none(*pmd)); 1098 page_add_new_anon_rmap(new_page, vma, address, true); 1099 mem_cgroup_commit_charge(new_page, memcg, false, true); 1100 count_memcg_events(memcg, THP_COLLAPSE_ALLOC, 1); 1101 lru_cache_add_active_or_unevictable(new_page, vma); 1102 pgtable_trans_huge_deposit(mm, pmd, pgtable); 1103 set_pmd_at(mm, address, pmd, _pmd); 1104 update_mmu_cache_pmd(vma, address, pmd); 1105 spin_unlock(pmd_ptl); 1106 1107 *hpage = NULL; 1108 1109 khugepaged_pages_collapsed++; 1110 result = SCAN_SUCCEED; 1111 out_up_write: 1112 up_write(&mm->mmap_sem); 1113 out_nolock: 1114 trace_mm_collapse_huge_page(mm, isolated, result); 1115 return; 1116 out: 1117 mem_cgroup_cancel_charge(new_page, memcg, true); 1118 goto out_up_write; 1119 } 1120 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] wl1251: Fix possible buffer overflow in wl1251_cmd_scan
by Xia Fukun 08 Jun '24

08 Jun '24

From: Lee Gibson <leegib(a)gmail.com> stable inclusion from stable-v4.19.314 commit 115103f6e3f1c26c473766c16439c7c8b235529a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4BX CVE: CVE-2021-47347 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- [ Upstream commit d10a87a3535cce2b890897914f5d0d83df669c63 ] Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size. Signed-off-by: Lee Gibson <leegib(a)gmail.com> Signed-off-by: Kalle Valo <kvalo(a)codeaurora.org> Link: https://lore.kernel.org/r/20210428115508.25624-1-leegib@gmail.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- drivers/net/wireless/ti/wl1251/cmd.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ti/wl1251/cmd.c b/drivers/net/wireless/ti/wl1251/cmd.c index 9547aea01b0f..ea0215246c5c 100644 --- a/drivers/net/wireless/ti/wl1251/cmd.c +++ b/drivers/net/wireless/ti/wl1251/cmd.c @@ -466,9 +466,12 @@ int wl1251_cmd_scan(struct wl1251 *wl, u8 *ssid, size_t ssid_len, cmd->channels[i].channel = channels[i]->hw_value; } - cmd->params.ssid_len = ssid_len; - if (ssid) - memcpy(cmd->params.ssid, ssid, ssid_len); + if (ssid) { + int len = clamp_val(ssid_len, 0, IEEE80211_MAX_SSID_LEN); + + cmd->params.ssid_len = len; + memcpy(cmd->params.ssid, ssid, len); + } ret = wl1251_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd)); if (ret < 0) { -- 2.34.1

2 1

[PATCH OLK-6.6] ALSA: hda: intel-sdw-acpi: fix usage of device_get_named_child_node()
by Cui GaoSheng 08 Jun '24

08 Jun '24

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> stable inclusion from stable-v6.6.31 commit 7db626d2730d3d80fd31638169054b1e507f07bf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UOP1 CVE: CVE-2024-36955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit c158cf914713efc3bcdc25680c7156c48c12ef6a ] The documentation for device_get_named_child_node() mentions this important point: " The caller is responsible for calling fwnode_handle_put() on the returned fwnode pointer. " Add fwnode_handle_put() to avoid a leaked reference. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Fixes: 08c2a4bc9f2a ("ALSA: hda: move Intel SoundWire ACPI scan to dedicated module") Message-ID: <20240426152731.38420-1-pierre-louis.bossart(a)linux.intel.com> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- sound/hda/intel-sdw-acpi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/hda/intel-sdw-acpi.c b/sound/hda/intel-sdw-acpi.c index b57d72ea4503..4e376994bf78 100644 --- a/sound/hda/intel-sdw-acpi.c +++ b/sound/hda/intel-sdw-acpi.c @@ -41,6 +41,8 @@ static bool is_link_enabled(struct fwnode_handle *fw_node, u8 idx) "intel-quirk-mask", &quirk_mask); + fwnode_handle_put(link); + if (quirk_mask & SDW_INTEL_QUIRK_MASK_BUS_DISABLE) return false; -- 2.34.1

2 1

[PATCH OLK-6.6] tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
by Cui GaoSheng 08 Jun '24

08 Jun '24

From: Daniel Starke <daniel.starke(a)siemens.com> stable inclusion from stable-v6.6.33 commit 2ab96b6e81d2a419d3e0d6bec043ea8f31eab86a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TAHR CVE: CVE-2024-36016 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 47388e807f85948eefc403a8a5fdc5b406a65d5a upstream. Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size. Reported-by: j51569436(a)gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218708 Tested-by: j51569436(a)gmail.com Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Cc: stable(a)vger.kernel.org Signed-off-by: Daniel Starke <daniel.starke(a)siemens.com> Link: https://lore.kernel.org/r/20240424054842.7741-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- drivers/tty/n_gsm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 0ee7531c9201..f8858865c5bb 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2912,7 +2912,10 @@ static void gsm0_receive(struct gsm_mux *gsm, unsigned char c) break; case GSM_DATA: /* Data */ gsm->buf[gsm->count++] = c; - if (gsm->count == gsm->len) { + if (gsm->count >= MAX_MRU) { + gsm->bad_size++; + gsm->state = GSM_SEARCH; + } else if (gsm->count >= gsm->len) { /* Calculate final FCS for UI frames over all data */ if ((gsm->control & ~PF) != UIH) { gsm->fcs = gsm_fcs_add_block(gsm->fcs, gsm->buf, @@ -3025,7 +3028,7 @@ static void gsm1_receive(struct gsm_mux *gsm, unsigned char c) gsm->state = GSM_DATA; break; case GSM_DATA: /* Data */ - if (gsm->count > gsm->mru) { /* Allow one for the FCS */ + if (gsm->count > gsm->mru || gsm->count > MAX_MRU) { /* Allow one for the FCS */ gsm->state = GSM_OVERRUN; gsm->bad_size++; } else -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
by Cui GaoSheng 08 Jun '24

08 Jun '24

From: Daniel Starke <daniel.starke(a)siemens.com> stable inclusion from stable-v5.10.219 commit a200355b429825c9331c1bd70d7bb895c2f06b7d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TAHR CVE: CVE-2024-36016 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 47388e807f85948eefc403a8a5fdc5b406a65d5a upstream. Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size. Reported-by: j51569436(a)gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218708 Tested-by: j51569436(a)gmail.com Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Cc: stable(a)vger.kernel.org Signed-off-by: Daniel Starke <daniel.starke(a)siemens.com> Link: https://lore.kernel.org/r/20240424054842.7741-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- drivers/tty/n_gsm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 6cd87e71fecc..594be57f44ec 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2015,8 +2015,12 @@ static void gsm0_receive(struct gsm_mux *gsm, unsigned char c) break; case GSM_DATA: /* Data */ gsm->buf[gsm->count++] = c; - if (gsm->count == gsm->len) + if (gsm->count >= MAX_MRU) { + gsm->bad_size++; + gsm->state = GSM_SEARCH; + } else if (gsm->count >= gsm->len) { gsm->state = GSM_FCS; + } break; case GSM_FCS: /* FCS follows the packet */ gsm->received_fcs = c; @@ -2109,7 +2113,7 @@ static void gsm1_receive(struct gsm_mux *gsm, unsigned char c) gsm->state = GSM_DATA; break; case GSM_DATA: /* Data */ - if (gsm->count > gsm->mru) { /* Allow one for the FCS */ + if (gsm->count > gsm->mru || gsm->count > MAX_MRU) { /* Allow one for the FCS */ gsm->state = GSM_OVERRUN; gsm->bad_size++; } else -- 2.34.1

2 1

[PATCH OLK-5.10] tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
by Cui GaoSheng 08 Jun '24

08 Jun '24

From: Daniel Starke <daniel.starke(a)siemens.com> stable inclusion from stable-v5.10.219 commit a200355b429825c9331c1bd70d7bb895c2f06b7d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TAHR CVE: CVE-2024-36016 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 47388e807f85948eefc403a8a5fdc5b406a65d5a upstream. Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size. Reported-by: j51569436(a)gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218708 Tested-by: j51569436(a)gmail.com Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Cc: stable(a)vger.kernel.org Signed-off-by: Daniel Starke <daniel.starke(a)siemens.com> Link: https://lore.kernel.org/r/20240424054842.7741-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- drivers/tty/n_gsm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 3693ad9f4521..af2412450b10 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2019,8 +2019,12 @@ static void gsm0_receive(struct gsm_mux *gsm, unsigned char c) break; case GSM_DATA: /* Data */ gsm->buf[gsm->count++] = c; - if (gsm->count == gsm->len) + if (gsm->count >= MAX_MRU) { + gsm->bad_size++; + gsm->state = GSM_SEARCH; + } else if (gsm->count >= gsm->len) { gsm->state = GSM_FCS; + } break; case GSM_FCS: /* FCS follows the packet */ gsm->received_fcs = c; @@ -2113,7 +2117,7 @@ static void gsm1_receive(struct gsm_mux *gsm, unsigned char c) gsm->state = GSM_DATA; break; case GSM_DATA: /* Data */ - if (gsm->count > gsm->mru) { /* Allow one for the FCS */ + if (gsm->count > gsm->mru || gsm->count > MAX_MRU) { /* Allow one for the FCS */ gsm->state = GSM_OVERRUN; gsm->bad_size++; } else -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
by Cui GaoSheng 08 Jun '24

08 Jun '24

From: Daniel Starke <daniel.starke(a)siemens.com> stable inclusion from stable-v5.10.219 commit a200355b429825c9331c1bd70d7bb895c2f06b7d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TAHR CVE: CVE-2024-36016 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 47388e807f85948eefc403a8a5fdc5b406a65d5a upstream. Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size. Reported-by: j51569436(a)gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218708 Tested-by: j51569436(a)gmail.com Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Cc: stable(a)vger.kernel.org Signed-off-by: Daniel Starke <daniel.starke(a)siemens.com> Link: https://lore.kernel.org/r/20240424054842.7741-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- drivers/tty/n_gsm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 05d9064b4ee7..52a2e613b59a 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -1914,8 +1914,12 @@ static void gsm0_receive(struct gsm_mux *gsm, unsigned char c) break; case GSM_DATA: /* Data */ gsm->buf[gsm->count++] = c; - if (gsm->count == gsm->len) + if (gsm->count >= MAX_MRU) { + gsm->bad_size++; + gsm->state = GSM_SEARCH; + } else if (gsm->count >= gsm->len) { gsm->state = GSM_FCS; + } break; case GSM_FCS: /* FCS follows the packet */ gsm->received_fcs = c; @@ -1994,7 +1998,7 @@ static void gsm1_receive(struct gsm_mux *gsm, unsigned char c) gsm->state = GSM_DATA; break; case GSM_DATA: /* Data */ - if (gsm->count > gsm->mru) { /* Allow one for the FCS */ + if (gsm->count > gsm->mru || gsm->count > MAX_MRU) { /* Allow one for the FCS */ gsm->state = GSM_OVERRUN; gsm->bad_size++; } else -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 v2] IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
by Xiongfeng Wang 08 Jun '24

08 Jun '24

From: Dragos Tatulea <dtatulea(a)nvidia.com> stable inclusion from stable-v5.10.168 commit b1afb666c32931667c15ad1b58e7203f0119dcaf category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7URR4 CVE: CVE-2023-52745 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- [ Upstream commit e632291a2dbce45a24cddeb5fe28fe71d724ba43 ] The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues. This patch fixes the number of queues to 1 for legacy IPoIB at the earliest possible point in time. BUG: kernel NULL pointer dereference, address: 000000000000036b PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:kmem_cache_alloc+0xcb/0x450 Code: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b RSP: 0018:ffff88822acbbab8 EFLAGS: 00010202 RAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae RDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00 RBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40 R10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000 R13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000 FS: 00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> skb_clone+0x55/0xd0 ip6_finish_output2+0x3fe/0x690 ip6_finish_output+0xfa/0x310 ip6_send_skb+0x1e/0x60 udp_v6_send_skb+0x1e5/0x420 udpv6_sendmsg+0xb3c/0xe60 ? ip_mc_finish_output+0x180/0x180 ? __switch_to_asm+0x3a/0x60 ? __switch_to_asm+0x34/0x60 sock_sendmsg+0x33/0x40 __sys_sendto+0x103/0x160 ? _copy_to_user+0x21/0x30 ? kvm_clock_get_cycles+0xd/0x10 ? ktime_get_ts64+0x49/0xe0 __x64_sys_sendto+0x25/0x30 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f9374f1ed14 Code: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b RSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14 RDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030 RBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc </TASK> Fixes: dbc94a0fb817 ("IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces") Signed-off-by: Dragos Tatulea <dtatulea(a)nvidia.com> Link: https://lore.kernel.org/r/95eb6b74c7cf49fa46281f9d056d685c9fa11d38.16745845… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: zhaoxiaoqiang11 <zhaoxiaoqiang11(a)jd.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index abfab89423f4..35322d23fc34 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2188,6 +2188,14 @@ int ipoib_intf_init(struct ib_device *hca, u8 port, const char *name, rn->attach_mcast = ipoib_mcast_attach; rn->detach_mcast = ipoib_mcast_detach; rn->hca = hca; + + rc = netif_set_real_num_tx_queues(dev, 1); + if (rc) + goto out; + + rc = netif_set_real_num_rx_queues(dev, 1); + if (rc) + goto out; } priv->rn_ops = dev->netdev_ops; -- 2.20.1

2 1

[PATCH OLK-6.6] blk-iocost: avoid out of bounds shift
by Li Nan 08 Jun '24

08 Jun '24

From: Rik van Riel <riel(a)surriel.com> stable inclusion from stable-v6.6.31 commit ce0e99cae00e3131872936713b7f55eefd53ab86 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LC CVE: CVE-2024-36916 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit beaa51b36012fad5a4d3c18b88a617aea7a9b96d ] UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug. Signed-off-by: Rik van Riel <riel(a)surriel.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: Josef Bacik <josef(a)toxicpanda.com> Cc: Jens Axboe <axboe(a)kernel.dk> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240404123253.0f58010f@imladris.surriel.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 1351db658a78..6a3e8a21c0fc 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1347,7 +1347,7 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) { struct ioc *ioc = iocg->ioc; struct blkcg_gq *blkg = iocg_to_blkg(iocg); - u64 tdelta, delay, new_delay; + u64 tdelta, delay, new_delay, shift; s64 vover, vover_pct; u32 hwa; @@ -1362,8 +1362,9 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) /* calculate the current delay in effect - 1/2 every second */ tdelta = now->now - iocg->delay_at; - if (iocg->delay) - delay = iocg->delay >> div64_u64(tdelta, USEC_PER_SEC); + shift = div64_u64(tdelta, USEC_PER_SEC); + if (iocg->delay && shift < BITS_PER_LONG) + delay = iocg->delay >> shift; else delay = 0; -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] blk-iocost: avoid out of bounds shift
by Li Nan 08 Jun '24

08 Jun '24

From: Rik van Riel <riel(a)surriel.com> stable inclusion from stable-v5.10.217 commit 62accf6c1d7b433752cb3591bba8967b7a801ad5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LC CVE: CVE-2024-36916 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit beaa51b36012fad5a4d3c18b88a617aea7a9b96d ] UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug. Signed-off-by: Rik van Riel <riel(a)surriel.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: Josef Bacik <josef(a)toxicpanda.com> Cc: Jens Axboe <axboe(a)kernel.dk> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240404123253.0f58010f@imladris.surriel.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index ef12e5d94a3b..edab843d547a 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1309,7 +1309,7 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) { struct ioc *ioc = iocg->ioc; struct blkcg_gq *blkg = iocg_to_blkg(iocg); - u64 tdelta, delay, new_delay; + u64 tdelta, delay, new_delay, shift; s64 vover, vover_pct; u32 hwa; @@ -1324,8 +1324,9 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) /* calculate the current delay in effect - 1/2 every second */ tdelta = now->now - iocg->delay_at; - if (iocg->delay) - delay = iocg->delay >> div64_u64(tdelta, USEC_PER_SEC); + shift = div64_u64(tdelta, USEC_PER_SEC); + if (iocg->delay && shift < BITS_PER_LONG) + delay = iocg->delay >> shift; else delay = 0; -- 2.39.2

2 1

[PATCH OLK-5.10] blk-iocost: avoid out of bounds shift
by Li Nan 08 Jun '24

08 Jun '24

From: Rik van Riel <riel(a)surriel.com> stable inclusion from stable-v5.10.217 commit 62accf6c1d7b433752cb3591bba8967b7a801ad5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U4LC CVE: CVE-2024-36916 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit beaa51b36012fad5a4d3c18b88a617aea7a9b96d ] UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug. Signed-off-by: Rik van Riel <riel(a)surriel.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: Josef Bacik <josef(a)toxicpanda.com> Cc: Jens Axboe <axboe(a)kernel.dk> Acked-by: Tejun Heo <tj(a)kernel.org> Link: https://lore.kernel.org/r/20240404123253.0f58010f@imladris.surriel.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-iocost.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index ef12e5d94a3b..edab843d547a 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1309,7 +1309,7 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) { struct ioc *ioc = iocg->ioc; struct blkcg_gq *blkg = iocg_to_blkg(iocg); - u64 tdelta, delay, new_delay; + u64 tdelta, delay, new_delay, shift; s64 vover, vover_pct; u32 hwa; @@ -1324,8 +1324,9 @@ static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now) /* calculate the current delay in effect - 1/2 every second */ tdelta = now->now - iocg->delay_at; - if (iocg->delay) - delay = iocg->delay >> div64_u64(tdelta, USEC_PER_SEC); + shift = div64_u64(tdelta, USEC_PER_SEC); + if (iocg->delay && shift < BITS_PER_LONG) + delay = iocg->delay >> shift; else delay = 0; -- 2.39.2

2 1

[PATCH OLK-6.6] s390/qeth: Fix kernel panic after setting hsuid
by Xiongfeng Wang 08 Jun '24

08 Jun '24

From: Alexandra Winter <wintera(a)linux.ibm.com> mainline inclusion from mainline-v6.9-rc7 commit 8a2e4d37afb8500b276e5ee903dee06f50ab0494 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TMCO CVE: CVE-2024-36928 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Symptom: When the hsuid attribute is set for the first time on an IQD Layer3 device while the corresponding network interface is already UP, the kernel will try to execute a napi function pointer that is NULL. Example: --------------------------------------------------------------------------- [ 2057.572696] illegal operation: 0001 ilc:1 [#1] SMP [ 2057.572702] Modules linked in: af_iucv qeth_l3 zfcp scsi_transport_fc sunrpc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_tables_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink ghash_s390 prng xts aes_s390 des_s390 de s_generic sha3_512_s390 sha3_256_s390 sha512_s390 vfio_ccw vfio_mdev mdev vfio_iommu_type1 eadm_sch vfio ext4 mbcache jbd2 qeth_l2 bridge stp llc dasd_eckd_mod qeth dasd_mod qdio ccwgroup pkey zcrypt [ 2057.572739] CPU: 6 PID: 60182 Comm: stress_client Kdump: loaded Not tainted 4.18.0-541.el8.s390x #1 [ 2057.572742] Hardware name: IBM 3931 A01 704 (LPAR) [ 2057.572744] Krnl PSW : 0704f00180000000 0000000000000002 (0x2) [ 2057.572748] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:3 PM:0 RI:0 EA:3 [ 2057.572751] Krnl GPRS: 0000000000000004 0000000000000000 00000000a3b008d8 0000000000000000 [ 2057.572754] 00000000a3b008d8 cb923a29c779abc5 0000000000000000 00000000814cfd80 [ 2057.572756] 000000000000012c 0000000000000000 00000000a3b008d8 00000000a3b008d8 [ 2057.572758] 00000000bab6d500 00000000814cfd80 0000000091317e46 00000000814cfc68 [ 2057.572762] Krnl Code:#0000000000000000: 0000 illegal >0000000000000002: 0000 illegal 0000000000000004: 0000 illegal 0000000000000006: 0000 illegal 0000000000000008: 0000 illegal 000000000000000a: 0000 illegal 000000000000000c: 0000 illegal 000000000000000e: 0000 illegal [ 2057.572800] Call Trace: [ 2057.572801] ([<00000000ec639700>] 0xec639700) [ 2057.572803] [<00000000913183e2>] net_rx_action+0x2ba/0x398 [ 2057.572809] [<0000000091515f76>] __do_softirq+0x11e/0x3a0 [ 2057.572813] [<0000000090ce160c>] do_softirq_own_stack+0x3c/0x58 [ 2057.572817] ([<0000000090d2cbd6>] do_softirq.part.1+0x56/0x60) [ 2057.572822] [<0000000090d2cc60>] __local_bh_enable_ip+0x80/0x98 [ 2057.572825] [<0000000091314706>] __dev_queue_xmit+0x2be/0xd70 [ 2057.572827] [<000003ff803dd6d6>] afiucv_hs_send+0x24e/0x300 [af_iucv] [ 2057.572830] [<000003ff803dd88a>] iucv_send_ctrl+0x102/0x138 [af_iucv] [ 2057.572833] [<000003ff803de72a>] iucv_sock_connect+0x37a/0x468 [af_iucv] [ 2057.572835] [<00000000912e7e90>] __sys_connect+0xa0/0xd8 [ 2057.572839] [<00000000912e9580>] sys_socketcall+0x228/0x348 [ 2057.572841] [<0000000091514e1a>] system_call+0x2a6/0x2c8 [ 2057.572843] Last Breaking-Event-Address: [ 2057.572844] [<0000000091317e44>] __napi_poll+0x4c/0x1d8 [ 2057.572846] [ 2057.572847] Kernel panic - not syncing: Fatal exception in interrupt ------------------------------------------------------------------------------------------- Analysis: There is one napi structure per out_q: card->qdio.out_qs[i].napi The napi.poll functions are set during qeth_open(). Since commit 1cfef80d4c2b ("s390/qeth: Don't call dev_close/dev_open (DOWN/UP)") qeth_set_offline()/qeth_set_online() no longer call dev_close()/ dev_open(). So if qeth_free_qdio_queues() cleared card->qdio.out_qs[i].napi.poll while the network interface was UP and the card was offline, they are not set again. Reproduction: chzdev -e $devno layer2=0 ip link set dev $network_interface up echo 0 > /sys/bus/ccwgroup/devices/0.0.$devno/online echo foo > /sys/bus/ccwgroup/devices/0.0.$devno/hsuid echo 1 > /sys/bus/ccwgroup/devices/0.0.$devno/online -> Crash (can be enforced e.g. by af_iucv connect(), ip link down/up, ...) Note that a Completion Queue (CQ) is only enabled or disabled, when hsuid is set for the first time or when it is removed. Workarounds: - Set hsuid before setting the device online for the first time or - Use chzdev -d $devno; chzdev $devno hsuid=xxx; chzdev -e $devno; to set hsuid on an existing device. (this will remove and recreate the network interface) Fix: There is no need to free the output queues when a completion queue is added or removed. card->qdio.state now indicates whether the inbound buffer pool and the outbound queues are allocated. card->qdio.c_q indicates whether a CQ is allocated. Fixes: 1cfef80d4c2b ("s390/qeth: Don't call dev_close/dev_open (DOWN/UP)") Signed-off-by: Alexandra Winter <wintera(a)linux.ibm.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Link: https://lore.kernel.org/r/20240430091004.2265683-1-wintera@linux.ibm.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/s390/net/qeth_core_main.c | 61 ++++++++++++++----------------- 1 file changed, 27 insertions(+), 34 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index cd783290bde5..d69b17d0f301 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -364,30 +364,33 @@ static int qeth_cq_init(struct qeth_card *card) return rc; } +static void qeth_free_cq(struct qeth_card *card) +{ + if (card->qdio.c_q) { + qeth_free_qdio_queue(card->qdio.c_q); + card->qdio.c_q = NULL; + } +} + static int qeth_alloc_cq(struct qeth_card *card) { if (card->options.cq == QETH_CQ_ENABLED) { QETH_CARD_TEXT(card, 2, "cqon"); - card->qdio.c_q = qeth_alloc_qdio_queue(); if (!card->qdio.c_q) { - dev_err(&card->gdev->dev, "Failed to create completion queue\n"); - return -ENOMEM; + card->qdio.c_q = qeth_alloc_qdio_queue(); + if (!card->qdio.c_q) { + dev_err(&card->gdev->dev, + "Failed to create completion queue\n"); + return -ENOMEM; + } } } else { QETH_CARD_TEXT(card, 2, "nocq"); - card->qdio.c_q = NULL; + qeth_free_cq(card); } return 0; } -static void qeth_free_cq(struct qeth_card *card) -{ - if (card->qdio.c_q) { - qeth_free_qdio_queue(card->qdio.c_q); - card->qdio.c_q = NULL; - } -} - static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, int delayed) { @@ -2594,6 +2597,10 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card) QETH_CARD_TEXT(card, 2, "allcqdbf"); + /* completion */ + if (qeth_alloc_cq(card)) + goto out_err; + if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) return 0; @@ -2629,10 +2636,6 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card) queue->priority = QETH_QIB_PQUE_PRIO_DEFAULT; } - /* completion */ - if (qeth_alloc_cq(card)) - goto out_freeoutq; - return 0; out_freeoutq: @@ -2643,6 +2646,8 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card) qeth_free_buffer_pool(card); out_buffer_pool: atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); + qeth_free_cq(card); +out_err: return -ENOMEM; } @@ -2650,11 +2655,12 @@ static void qeth_free_qdio_queues(struct qeth_card *card) { int i, j; + qeth_free_cq(card); + if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == QETH_QDIO_UNINITIALIZED) return; - qeth_free_cq(card); for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { if (card->qdio.in_q->bufs[j].rx_skb) { consume_skb(card->qdio.in_q->bufs[j].rx_skb); @@ -3708,24 +3714,11 @@ static void qeth_qdio_poll(struct ccw_device *cdev, unsigned long card_ptr) int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) { - int rc; - - if (card->options.cq == QETH_CQ_NOTAVAILABLE) { - rc = -1; - goto out; - } else { - if (card->options.cq == cq) { - rc = 0; - goto out; - } - - qeth_free_qdio_queues(card); - card->options.cq = cq; - rc = 0; - } -out: - return rc; + if (card->options.cq == QETH_CQ_NOTAVAILABLE) + return -1; + card->options.cq = cq; + return 0; } EXPORT_SYMBOL_GPL(qeth_configure_cq); -- 2.20.1

2 1

[PATCH openEuler-22.03-LTS-SP1] IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
by Xiongfeng Wang 08 Jun '24

08 Jun '24

From: Dragos Tatulea <dtatulea(a)nvidia.com> stable inclusion from stable-v5.10.168 commit b1afb666c32931667c15ad1b58e7203f0119dcaf category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7URR4 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- [ Upstream commit e632291a2dbce45a24cddeb5fe28fe71d724ba43 ] The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues. This patch fixes the number of queues to 1 for legacy IPoIB at the earliest possible point in time. BUG: kernel NULL pointer dereference, address: 000000000000036b PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:kmem_cache_alloc+0xcb/0x450 Code: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b RSP: 0018:ffff88822acbbab8 EFLAGS: 00010202 RAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae RDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00 RBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40 R10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000 R13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000 FS: 00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> skb_clone+0x55/0xd0 ip6_finish_output2+0x3fe/0x690 ip6_finish_output+0xfa/0x310 ip6_send_skb+0x1e/0x60 udp_v6_send_skb+0x1e5/0x420 udpv6_sendmsg+0xb3c/0xe60 ? ip_mc_finish_output+0x180/0x180 ? __switch_to_asm+0x3a/0x60 ? __switch_to_asm+0x34/0x60 sock_sendmsg+0x33/0x40 __sys_sendto+0x103/0x160 ? _copy_to_user+0x21/0x30 ? kvm_clock_get_cycles+0xd/0x10 ? ktime_get_ts64+0x49/0xe0 __x64_sys_sendto+0x25/0x30 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f9374f1ed14 Code: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b RSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14 RDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030 RBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc </TASK> Fixes: dbc94a0fb817 ("IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces") Signed-off-by: Dragos Tatulea <dtatulea(a)nvidia.com> Link: https://lore.kernel.org/r/95eb6b74c7cf49fa46281f9d056d685c9fa11d38.16745845… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: zhaoxiaoqiang11 <zhaoxiaoqiang11(a)jd.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index abfab89423f4..35322d23fc34 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2188,6 +2188,14 @@ int ipoib_intf_init(struct ib_device *hca, u8 port, const char *name, rn->attach_mcast = ipoib_mcast_attach; rn->detach_mcast = ipoib_mcast_detach; rn->hca = hca; + + rc = netif_set_real_num_tx_queues(dev, 1); + if (rc) + goto out; + + rc = netif_set_real_num_rx_queues(dev, 1); + if (rc) + goto out; } priv->rn_ops = dev->netdev_ops; -- 2.20.1

2 1

[openeuler:OLK-5.10] BUILD SUCCESS 3a72ab4d600f4692f3083e0c6c71dcd09befb19f
by kernel test robot 08 Jun '24

08 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 3a72ab4d600f4692f3083e0c6c71dcd09befb19f !8635 ipv6: Fix potential uninit-value access in __ip6_make_skb() Warning ids grouped by kconfigs: clang_recent_errors `-- x86_64-allnoconfig |-- drivers-net-ethernet-yunsilicon-xsc-net-main.c:common-qp.h-is-included-more-than-once. |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_device.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_genl_admin.c:linux-version.h-not-needed. |-- drivers-ub-urma-ubcore-ubcore_uvs_cmd.c:ubcore_device.h-is-included-more-than-once. `-- drivers-ub-urma-uburma-uburma_mmap.c:linux-version.h-not-needed. elapsed time: 979m configs tested: 35 configs skipped: 133 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240608 gcc arm64 randconfig-002-20240608 gcc arm64 randconfig-003-20240608 gcc arm64 randconfig-004-20240608 clang x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240608 clang x86_64 buildonly-randconfig-002-20240608 gcc x86_64 buildonly-randconfig-003-20240608 clang x86_64 buildonly-randconfig-004-20240608 gcc x86_64 buildonly-randconfig-005-20240608 gcc x86_64 buildonly-randconfig-006-20240608 gcc x86_64 defconfig gcc x86_64 randconfig-001-20240608 clang x86_64 randconfig-002-20240608 gcc x86_64 randconfig-003-20240608 gcc x86_64 randconfig-004-20240608 gcc x86_64 randconfig-005-20240608 clang x86_64 randconfig-006-20240608 gcc x86_64 randconfig-011-20240608 gcc x86_64 randconfig-012-20240608 clang x86_64 randconfig-013-20240608 gcc x86_64 randconfig-014-20240608 gcc x86_64 randconfig-015-20240608 clang x86_64 randconfig-016-20240608 gcc x86_64 randconfig-071-20240608 gcc x86_64 randconfig-072-20240608 gcc x86_64 randconfig-073-20240608 clang x86_64 randconfig-074-20240608 gcc x86_64 randconfig-075-20240608 clang x86_64 randconfig-076-20240608 gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 5421/22816] drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: sparse: incorrect type in assignment (different address spaces)
by kernel test robot 07 Jun '24

07 Jun '24

Hi Paulo, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 5f7c9fb397f766a76fd60433ae4a140222897c62 commit: 71e217e85c3dff8a9151707ed3afc7b4b054a2d4 [5421/22816] selinux: use kernel linux/socket.h for genheaders and mdp config: arm64-randconfig-r123-20240607 (https://download.01.org/0day-ci/archive/20240607/202406072001.vnKK8yuZ-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240607/202406072001.vnKK8yuZ-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202406072001.vnKK8yuZ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mem_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: expected void *mem_region drivers/remoteproc/qcom_adsp_pil.c:246:26: sparse: got void [noderef] <asn:2> * -- >> drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mba_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: expected void *mba_region drivers/remoteproc/qcom_q6v5_pil.c:1096:27: sparse: got void [noderef] <asn:2> * >> drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mpss_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: expected void *mpss_region drivers/remoteproc/qcom_q6v5_pil.c:1114:28: sparse: got void [noderef] <asn:2> * drivers/remoteproc/qcom_q6v5_pil.c: In function 'q6v5_mpss_load': drivers/remoteproc/qcom_q6v5_pil.c:741:70: warning: '%02d' directive output may be truncated writing between 2 and 11 bytes into a region of size 3 [-Wformat-truncation=] 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~ drivers/remoteproc/qcom_q6v5_pil.c:741:62: note: directive argument in the range [-2147483641, 65534] 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~~~~~~~~~~ drivers/remoteproc/qcom_q6v5_pil.c:741:25: note: 'snprintf' output between 10 and 19 bytes into a destination of size 10 741 | snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- >> drivers/remoteproc/qcom_wcnss.c:456:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *mem_region @@ got void [noderef] <asn:2> * @@ drivers/remoteproc/qcom_wcnss.c:456:27: sparse: expected void *mem_region drivers/remoteproc/qcom_wcnss.c:456:27: sparse: got void [noderef] <asn:2> * -- >> net/netfilter/nft_counter.c:158:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct nft_counter_percpu_priv [noderef] <asn:3> *priv @@ got struct nft_counter_percpu_priv *priv @@ net/netfilter/nft_counter.c:158:35: sparse: expected struct nft_counter_percpu_priv [noderef] <asn:3> *priv net/netfilter/nft_counter.c:158:35: sparse: got struct nft_counter_percpu_priv *priv net/netfilter/nft_counter.c:113:20: sparse: sparse: dereference of noderef expression vim +246 drivers/remoteproc/qcom_adsp_pil.c b9e718e950c3dfa Bjorn Andersson 2016-08-22 227 b9e718e950c3dfa Bjorn Andersson 2016-08-22 228 static int adsp_alloc_memory_region(struct qcom_adsp *adsp) b9e718e950c3dfa Bjorn Andersson 2016-08-22 229 { b9e718e950c3dfa Bjorn Andersson 2016-08-22 230 struct device_node *node; b9e718e950c3dfa Bjorn Andersson 2016-08-22 231 struct resource r; b9e718e950c3dfa Bjorn Andersson 2016-08-22 232 int ret; b9e718e950c3dfa Bjorn Andersson 2016-08-22 233 b9e718e950c3dfa Bjorn Andersson 2016-08-22 234 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0); b9e718e950c3dfa Bjorn Andersson 2016-08-22 235 if (!node) { b9e718e950c3dfa Bjorn Andersson 2016-08-22 236 dev_err(adsp->dev, "no memory-region specified\n"); b9e718e950c3dfa Bjorn Andersson 2016-08-22 237 return -EINVAL; b9e718e950c3dfa Bjorn Andersson 2016-08-22 238 } b9e718e950c3dfa Bjorn Andersson 2016-08-22 239 b9e718e950c3dfa Bjorn Andersson 2016-08-22 240 ret = of_address_to_resource(node, 0, &r); b9e718e950c3dfa Bjorn Andersson 2016-08-22 241 if (ret) b9e718e950c3dfa Bjorn Andersson 2016-08-22 242 return ret; b9e718e950c3dfa Bjorn Andersson 2016-08-22 243 b9e718e950c3dfa Bjorn Andersson 2016-08-22 244 adsp->mem_phys = adsp->mem_reloc = r.start; b9e718e950c3dfa Bjorn Andersson 2016-08-22 245 adsp->mem_size = resource_size(&r); b9e718e950c3dfa Bjorn Andersson 2016-08-22 @246 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size); b9e718e950c3dfa Bjorn Andersson 2016-08-22 247 if (!adsp->mem_region) { b9e718e950c3dfa Bjorn Andersson 2016-08-22 248 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n", b9e718e950c3dfa Bjorn Andersson 2016-08-22 249 &r.start, adsp->mem_size); b9e718e950c3dfa Bjorn Andersson 2016-08-22 250 return -EBUSY; b9e718e950c3dfa Bjorn Andersson 2016-08-22 251 } b9e718e950c3dfa Bjorn Andersson 2016-08-22 252 b9e718e950c3dfa Bjorn Andersson 2016-08-22 253 return 0; b9e718e950c3dfa Bjorn Andersson 2016-08-22 254 } b9e718e950c3dfa Bjorn Andersson 2016-08-22 255 :::::: The code at line 246 was first introduced by commit :::::: b9e718e950c3dfa458bbf9180a8d8691e55413ae remoteproc: Introduce Qualcomm ADSP PIL :::::: TO: Bjorn Andersson <bjorn.andersson(a)sonymobile.com> :::::: CC: Bjorn Andersson <bjorn.andersson(a)linaro.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-22.03-LTS-SP1 0/2] Fix CVE-2024-35951
by Cui GaoSheng 07 Jun '24

07 Jun '24

Fix CVE-2024-35951. Boris Brezillon (2): drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() drivers/gpu/drm/panfrost/panfrost_mmu.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) -- 2.34.1

2 3

[PATCH OLK-5.10] drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr()
by Cui GaoSheng 07 Jun '24

07 Jun '24

From: Boris Brezillon <boris.brezillon(a)collabora.com> stable inclusion from stable-v6.6.28 commit 31806711e8a4b75e09b1c43652f2a6420e6e1002 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRMU CVE: CVE-2024-35951 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 1fc9af813b25e146d3607669247d0f970f5a87c3 upstream. Subject: drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr() If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier, otherwise we will end up with unbalanced get/put_pages() calls. We should instead leave everything in place and let the BO release function deal with extra cleanup when the object is destroyed, or let the fault handler try again next time it's called. Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations") Cc: <stable(a)vger.kernel.org> Reviewed-by: Steven Price <steven.price(a)arm.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon(a)collabora.com> Co-developed-by: Dmitry Osipenko <dmitry.osipenko(a)collabora.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko(a)collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240105184624.508603-18-dmit… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/gpu/drm/panfrost/panfrost_mmu.c Signed-off-by: Cui GaoSheng <cuigaosheng1(a)huawei.com> --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 7ab916a6ba3f..3d822ecc3448 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -447,12 +447,19 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, mapping_set_unevictable(mapping); for (i = page_offset; i < page_offset + NUM_FAULT_PAGES; i++) { + /* Can happen if the last fault only partially filled this + * section of the pages array before failing. In that case + * we skip already filled pages. + */ + if (pages[i]) + continue; + pages[i] = shmem_read_mapping_page(mapping, i); if (IS_ERR(pages[i])) { mutex_unlock(&bo->base.pages_lock); ret = PTR_ERR(pages[i]); pages[i] = NULL; - goto err_pages; + goto err_bo; } } @@ -462,7 +469,7 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, ret = sg_alloc_table_from_pages(sgt, pages + page_offset, NUM_FAULT_PAGES, 0, SZ_2M, GFP_KERNEL); if (ret) - goto err_pages; + goto err_bo; ret = dma_map_sgtable(pfdev->dev, sgt, DMA_BIDIRECTIONAL, 0); if (ret) @@ -482,8 +489,6 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, err_map: sg_free_table(sgt); -err_pages: - drm_gem_shmem_put_pages(&bo->base); err_bo: panfrost_gem_mapping_put(bomapping); return ret; -- 2.34.1

2 1

[PATCH OLK-5.10 v2 0/2] iomap: fix sub-page not set dirty state
by Long Li 07 Jun '24

07 Jun '24

This patch fix sub-page not set dirty stat issuse. Long Li (2): Revert "iomap: Don't create iomap_page objects in iomap_page_mkwrite_actor" iomap: Ensure sub-page dirty state is set during mmap writes fs/iomap/buffered-io.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) -- 2.31.1

2 3

[PATCH OLK-5.10] cvm: enhance security for cvm host feature
by Ju Fu 07 Jun '24

07 Jun '24

virtcca inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9TM0T -------------------------------- enhance security for cvm host feature Signed-off-by: Ju Fu <fuju1(a)huawei.com> --- arch/arm64/include/asm/kvm_emulate.h | 4 ++- arch/arm64/include/asm/kvm_tmi.h | 34 ++------------------ arch/arm64/include/asm/kvm_tmm.h | 2 +- arch/arm64/kvm/cvm.c | 48 ++++++++++++++++++++++++---- drivers/irqchip/irq-gic-v3-its.c | 2 +- 5 files changed, 49 insertions(+), 41 deletions(-) diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 540563623..1271df56c 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -571,7 +571,9 @@ static inline enum cvm_state kvm_cvm_state(struct kvm *kvm) { struct cvm *cvm = kvm->arch.cvm; - return cvm && READ_ONCE(cvm->state); + if (!cvm) + return 0; + return READ_ONCE(cvm->state); } #endif #endif /* __ARM64_KVM_EMULATE_H__ */ diff --git a/arch/arm64/include/asm/kvm_tmi.h b/arch/arm64/include/asm/kvm_tmi.h index 536594017..b89680f31 100644 --- a/arch/arm64/include/asm/kvm_tmi.h +++ b/arch/arm64/include/asm/kvm_tmi.h @@ -18,22 +18,6 @@ #define TMM_TTT_LEVEL_2 2 #define TMM_TTT_LEVEL_3 3 -#ifdef CONFIG_CVM_HOST_FVP_PLAT -#define CVM_MEM_BASE ULL(0x8800000000) /* choose FVP platform to run cVM */ -#define VQ_NUM 3 -#else -#define CVM_MEM_BASE ULL(0x800000000) /* choose qemu platform to run cVM */ -#define VQ_NUM 3 -#endif - -#define MEM_SEG_NUMS 2 - -/* define in QEMU hw/arm/virt.c */ -#define VIRT_PCIE_MMIO 0x10000000 /* 256MB */ -#define VIRT_PCIE_MMIO_SIZE 0x1000000 /* 16MB */ -#define VIRT_HIGH_PCIE_ECAM 0x8000000000 /* 512GB */ -#define VIRT_HIGH_PCIE_ECAM_SIZE 0x12000000 /* 288MB */ - /* TMI error codes. */ #define TMI_SUCCESS 0 #define TMI_ERROR_INPUT 1 @@ -214,6 +198,8 @@ struct tmi_tec_run { #define TMI_NO_MEASURE_CONTENT U(0) #define TMI_MEASURE_CONTENT U(1) +#define CVM_IPA_MAX_VAL (1UL << 48) + /* * SMC_TMM_INIT_COMPLETE is the only function in the TMI that originates from * the CVM world and is handled by the SPMD. The remaining functions are @@ -264,7 +250,7 @@ struct tmi_tec_run { #define TMI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) #define TMI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF) -#define TMI_ABI_VERSION_MAJOR U(0x0) +#define TMI_ABI_VERSION_MAJOR U(0x1) /* KVM_CAP_ARM_TMM on VM fd */ #define KVM_CAP_ARM_TMM_CONFIG_CVM_HOST 0 @@ -330,20 +316,6 @@ struct kvm_cap_arm_tmm_populate_region_args { __u32 reserved[3]; }; -enum tmi_tmm_mem_type { - TMM_MEM_TYPE_RD, - TMM_MEM_TYPE_TEC, - TMM_MEM_TYPE_TTT, - TMM_MEM_TYPE_CVM_PA, -}; - -enum tmi_tmm_map_size { - TMM_MEM_MAP_SIZE_4K, - TMM_MEM_MAP_SIZE_2M, - TMM_MEM_MAP_SIZE_1G, - TMM_MEM_MAP_SIZE_MAX, -}; - static inline bool tmm_is_addr_ttt_level_aligned(uint64_t addr, int level) { uint64_t mask = (1 << (12 + 9 * (3 - level))) - 1; diff --git a/arch/arm64/include/asm/kvm_tmm.h b/arch/arm64/include/asm/kvm_tmm.h index 88fa0873c..8cc7a35c9 100644 --- a/arch/arm64/include/asm/kvm_tmm.h +++ b/arch/arm64/include/asm/kvm_tmm.h @@ -8,7 +8,7 @@ #include <uapi/linux/kvm.h> enum cvm_state { - CVM_STATE_NONE, + CVM_STATE_NONE = 1, CVM_STATE_NEW, CVM_STATE_ACTIVE, CVM_STATE_DYING diff --git a/arch/arm64/kvm/cvm.c b/arch/arm64/kvm/cvm.c index 70521fec8..9b4087a37 100644 --- a/arch/arm64/kvm/cvm.c +++ b/arch/arm64/kvm/cvm.c @@ -181,8 +181,9 @@ int kvm_arm_create_cvm(struct kvm *kvm) memcpy(cvm->params->rpv, &cvm->cvm_vmid, sizeof(cvm->cvm_vmid)); cvm->rd = tmi_cvm_create(__pa(cvm->params), numa_set); if (!cvm->rd) { - kvm_err("KVM creates cVM: %d\n", cvm->cvm_vmid); + kvm_err("KVM creates cVM failed: %d\n", cvm->cvm_vmid); ret = -ENOMEM; + goto out; } WRITE_ONCE(cvm->state, CVM_STATE_NEW); @@ -341,7 +342,7 @@ int kvm_cvm_populate_par_region(struct kvm *kvm, u64 numa_set, */ ipa = ALIGN_DOWN(ipa, map_size); - if (is_data_create_region(ipa_base, args)) { + if (is_data_create_region(ipa, args)) { pfn = gfn_to_pfn_memslot(memslot, gpa_to_gfn(ipa)); if (is_error_pfn(pfn)) { ret = -EFAULT; @@ -602,6 +603,7 @@ static int kvm_populate_ram_region(struct kvm *kvm, u64 map_size, static int kvm_populate_ipa_cvm_range(struct kvm *kvm, struct kvm_cap_arm_tmm_populate_region_args *args) { + struct cvm *cvm = (struct cvm *)kvm->arch.cvm; u64 l2_granule = cvm_granule_size(TMM_TTT_LEVEL_2); phys_addr_t ipa_base1, ipa_end2; @@ -612,7 +614,10 @@ static int kvm_populate_ipa_cvm_range(struct kvm *kvm, !IS_ALIGNED(args->populate_ipa_base2, PAGE_SIZE) || !IS_ALIGNED(args->populate_ipa_size2, PAGE_SIZE)) return -EINVAL; - if (args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1) + + if (args->populate_ipa_base1 < cvm->loader_start || + args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1 || + cvm->dtb_end < args->populate_ipa_base2 + args->populate_ipa_size2) return -EINVAL; if (args->flags & ~TMI_MEASURE_CONTENT) @@ -755,6 +760,26 @@ int kvm_init_tmm(void) return 0; } +bool is_numa_ipa_range_valid(struct kvm_numa_info *numa_info) +{ + unsigned long i; + struct kvm_numa_node *numa_node, *prev_numa_node; + + prev_numa_node = NULL; + for (i = 0; i < numa_info->numa_cnt; i++) { + numa_node = &numa_info->numa_nodes[i]; + if (numa_node->ipa_start + numa_node->ipa_size < numa_node->ipa_start) + return false; + if (prev_numa_node && + numa_node->ipa_start < prev_numa_node->ipa_start + prev_numa_node->ipa_size) + return false; + prev_numa_node = numa_node; + } + if (numa_node->ipa_start + numa_node->ipa_size > CVM_IPA_MAX_VAL) + return false; + return true; +} + int kvm_load_user_data(struct kvm *kvm, unsigned long arg) { struct kvm_user_data user_data; @@ -766,26 +791,34 @@ int kvm_load_user_data(struct kvm *kvm, unsigned long arg) return -EFAULT; if (copy_from_user(&user_data, argp, sizeof(user_data))) - return -EFAULT; + return -EINVAL; numa_info = &user_data.numa_info; if (numa_info->numa_cnt > MAX_NUMA_NODE) - return -EFAULT; + return -EINVAL; if (numa_info->numa_cnt > 0) { unsigned long i, total_size = 0; struct kvm_numa_node *numa_node = &numa_info->numa_nodes[0]; unsigned long ipa_end = numa_node->ipa_start + numa_node->ipa_size; + if (!is_numa_ipa_range_valid(numa_info)) + return -EINVAL; if (user_data.loader_start < numa_node->ipa_start || user_data.dtb_end > ipa_end) - return -EFAULT; + return -EINVAL; for (i = 0; i < numa_info->numa_cnt; i++) total_size += numa_info->numa_nodes[i].ipa_size; if (total_size != user_data.ram_size) - return -EFAULT; + return -EINVAL; } + if (user_data.image_end <= user_data.loader_start || + user_data.initrd_start < user_data.image_end || + cvm->dtb_end < user_data.initrd_start || + cvm->ram_size < cvm->dtb_end - user_data.loader_start) + return -EINVAL; + cvm->loader_start = user_data.loader_start; cvm->image_end = user_data.image_end; cvm->initrd_start = user_data.initrd_start; @@ -871,6 +904,7 @@ int kvm_init_cvm_vm(struct kvm *kvm) return -ENOMEM; cvm->params = params; + WRITE_ONCE(cvm->state, CVM_STATE_NONE); return 0; } diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 2c2f23f35..153930d01 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2905,7 +2905,7 @@ static void its_free_tables(struct its_node *its) for (i = 0; i < GITS_BASER_NR_REGS; i++) { if (its->tables[i].base) { #ifdef CONFIG_CVM_GUEST - if (!is_cvm_world()) + if (is_cvm_world()) its_free_shared_pages(its->tables[i].base, its->tables[i].order); else -- 2.25.1.windows.1

2 1

[PATCH openEuler-1.0-LTS] watchdog: Fix possible use-after-free in wdt_startup()
by Zeng Heng 07 Jun '24

07 Jun '24

From: Zou Wei <zou_wei(a)huawei.com> mainline inclusion from mainline-v5.14-rc1 commit c08a6b31e4917034f0ed0cb457c3bb209576f542 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9ROH3 CVE: CVE-2021-47324 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free. Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself. Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Zou Wei <zou_wei(a)huawei.com> Reviewed-by: Guenter Roeck <linux(a)roeck-us.net> Link: https://lore.kernel.org/r/1620716495-108352-1-git-send-email-zou_wei@huawei… Signed-off-by: Guenter Roeck <linux(a)roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim(a)linux-watchdog.org> Signed-off-by: Zeng Heng <zengheng4(a)huawei.com> --- drivers/watchdog/sbc60xxwdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c index 87333a41f753..1702df7f8c38 100644 --- a/drivers/watchdog/sbc60xxwdt.c +++ b/drivers/watchdog/sbc60xxwdt.c @@ -152,7 +152,7 @@ static void wdt_startup(void) static void wdt_turnoff(void) { /* Stop the timer */ - del_timer(&timer); + del_timer_sync(&timer); inb_p(wdt_stop); pr_info("Watchdog timer is now disabled...\n"); } -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] igb: Fix use-after-free error during reset
by liwei 07 Jun '24

07 Jun '24

From: Vinicius Costa Gomes <vinicius.gomes(a)intel.com> mainline inclusion from mainline-v5.14-rc2 commit 7b292608db23ccbbfbfa50cdb155d01725d7a52e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4I4 CVE: CVE-2021-47301 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igb_poll() runs while the controller is reset this can lead to the driver try to free a skb that was already freed. (The crash is harder to reproduce with the igb driver, but the same potential problem exists as the code is identical to igc) Fixes: 7cc6fd4c60f2 ("igb: Don't bother clearing Tx buffer_info in igb_clean_tx_ring") Signed-off-by: Vinicius Costa Gomes <vinicius.gomes(a)intel.com> Reported-by: Erez Geva <erez.geva.ext(a)siemens.com> Tested-by: Tony Brelinski <tonyx.brelinski(a)intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen(a)intel.com> Signed-off-by: dengquan <dengquan9(a)huawei.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 6d9b8e81b44d..e54f1c033c60 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4684,6 +4684,8 @@ static void igb_clean_tx_ring(struct igb_ring *tx_ring) DMA_TO_DEVICE); } + tx_buffer->next_to_watch = NULL; + /* move us one more past the eop_desc for start of next pkt */ tx_buffer++; i++; -- 2.25.1

2 1

[PATCH OLK-5.10] cvm: enhance security for cvm host feature
by Ju Fu 07 Jun '24

07 Jun '24

virtcca inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9TM0T -------------------------------- enhance security for cvm host feature Signed-off-by: Ju Fu <fuju1(a)huawei.com> --- arch/arm64/include/asm/kvm_emulate.h | 4 +++- arch/arm64/include/asm/kvm_tmi.h | 32 +--------------------------- arch/arm64/include/asm/kvm_tmm.h | 2 +- arch/arm64/kvm/cvm.c | 12 ++++++++--- drivers/irqchip/irq-gic-v3-its.c | 2 +- 5 files changed, 15 insertions(+), 37 deletions(-) diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 540563623..1271df56c 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -571,7 +571,9 @@ static inline enum cvm_state kvm_cvm_state(struct kvm *kvm) { struct cvm *cvm = kvm->arch.cvm; - return cvm && READ_ONCE(cvm->state); + if (!cvm) + return 0; + return READ_ONCE(cvm->state); } #endif #endif /* __ARM64_KVM_EMULATE_H__ */ diff --git a/arch/arm64/include/asm/kvm_tmi.h b/arch/arm64/include/asm/kvm_tmi.h index 536594017..5dcc5d83f 100644 --- a/arch/arm64/include/asm/kvm_tmi.h +++ b/arch/arm64/include/asm/kvm_tmi.h @@ -18,22 +18,6 @@ #define TMM_TTT_LEVEL_2 2 #define TMM_TTT_LEVEL_3 3 -#ifdef CONFIG_CVM_HOST_FVP_PLAT -#define CVM_MEM_BASE ULL(0x8800000000) /* choose FVP platform to run cVM */ -#define VQ_NUM 3 -#else -#define CVM_MEM_BASE ULL(0x800000000) /* choose qemu platform to run cVM */ -#define VQ_NUM 3 -#endif - -#define MEM_SEG_NUMS 2 - -/* define in QEMU hw/arm/virt.c */ -#define VIRT_PCIE_MMIO 0x10000000 /* 256MB */ -#define VIRT_PCIE_MMIO_SIZE 0x1000000 /* 16MB */ -#define VIRT_HIGH_PCIE_ECAM 0x8000000000 /* 512GB */ -#define VIRT_HIGH_PCIE_ECAM_SIZE 0x12000000 /* 288MB */ - /* TMI error codes. */ #define TMI_SUCCESS 0 #define TMI_ERROR_INPUT 1 @@ -264,7 +248,7 @@ struct tmi_tec_run { #define TMI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16) #define TMI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF) -#define TMI_ABI_VERSION_MAJOR U(0x0) +#define TMI_ABI_VERSION_MAJOR U(0x1) /* KVM_CAP_ARM_TMM on VM fd */ #define KVM_CAP_ARM_TMM_CONFIG_CVM_HOST 0 @@ -330,20 +314,6 @@ struct kvm_cap_arm_tmm_populate_region_args { __u32 reserved[3]; }; -enum tmi_tmm_mem_type { - TMM_MEM_TYPE_RD, - TMM_MEM_TYPE_TEC, - TMM_MEM_TYPE_TTT, - TMM_MEM_TYPE_CVM_PA, -}; - -enum tmi_tmm_map_size { - TMM_MEM_MAP_SIZE_4K, - TMM_MEM_MAP_SIZE_2M, - TMM_MEM_MAP_SIZE_1G, - TMM_MEM_MAP_SIZE_MAX, -}; - static inline bool tmm_is_addr_ttt_level_aligned(uint64_t addr, int level) { uint64_t mask = (1 << (12 + 9 * (3 - level))) - 1; diff --git a/arch/arm64/include/asm/kvm_tmm.h b/arch/arm64/include/asm/kvm_tmm.h index 88fa0873c..8cc7a35c9 100644 --- a/arch/arm64/include/asm/kvm_tmm.h +++ b/arch/arm64/include/asm/kvm_tmm.h @@ -8,7 +8,7 @@ #include <uapi/linux/kvm.h> enum cvm_state { - CVM_STATE_NONE, + CVM_STATE_NONE = 1, CVM_STATE_NEW, CVM_STATE_ACTIVE, CVM_STATE_DYING diff --git a/arch/arm64/kvm/cvm.c b/arch/arm64/kvm/cvm.c index 70521fec8..8c428597b 100644 --- a/arch/arm64/kvm/cvm.c +++ b/arch/arm64/kvm/cvm.c @@ -181,8 +181,9 @@ int kvm_arm_create_cvm(struct kvm *kvm) memcpy(cvm->params->rpv, &cvm->cvm_vmid, sizeof(cvm->cvm_vmid)); cvm->rd = tmi_cvm_create(__pa(cvm->params), numa_set); if (!cvm->rd) { - kvm_err("KVM creates cVM: %d\n", cvm->cvm_vmid); + kvm_err("KVM creates cVM failed: %d\n", cvm->cvm_vmid); ret = -ENOMEM; + goto out; } WRITE_ONCE(cvm->state, CVM_STATE_NEW); @@ -341,7 +342,7 @@ int kvm_cvm_populate_par_region(struct kvm *kvm, u64 numa_set, */ ipa = ALIGN_DOWN(ipa, map_size); - if (is_data_create_region(ipa_base, args)) { + if (is_data_create_region(ipa, args)) { pfn = gfn_to_pfn_memslot(memslot, gpa_to_gfn(ipa)); if (is_error_pfn(pfn)) { ret = -EFAULT; @@ -602,6 +603,7 @@ static int kvm_populate_ram_region(struct kvm *kvm, u64 map_size, static int kvm_populate_ipa_cvm_range(struct kvm *kvm, struct kvm_cap_arm_tmm_populate_region_args *args) { + struct cvm *cvm = (struct cvm *)kvm->arch.cvm; u64 l2_granule = cvm_granule_size(TMM_TTT_LEVEL_2); phys_addr_t ipa_base1, ipa_end2; @@ -612,7 +614,10 @@ static int kvm_populate_ipa_cvm_range(struct kvm *kvm, !IS_ALIGNED(args->populate_ipa_base2, PAGE_SIZE) || !IS_ALIGNED(args->populate_ipa_size2, PAGE_SIZE)) return -EINVAL; - if (args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1) + + if (args->populate_ipa_base1 < cvm->loader_start || + args->populate_ipa_base2 < args->populate_ipa_base1 + args->populate_ipa_size1 || + cvm->dtb_end < args->populate_ipa_base2 + args->populate_ipa_size2) return -EINVAL; if (args->flags & ~TMI_MEASURE_CONTENT) @@ -871,6 +876,7 @@ int kvm_init_cvm_vm(struct kvm *kvm) return -ENOMEM; cvm->params = params; + WRITE_ONCE(cvm->state, CVM_STATE_NONE); return 0; } diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 2c2f23f35..153930d01 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2905,7 +2905,7 @@ static void its_free_tables(struct its_node *its) for (i = 0; i < GITS_BASER_NR_REGS; i++) { if (its->tables[i].base) { #ifdef CONFIG_CVM_GUEST - if (!is_cvm_world()) + if (is_cvm_world()) its_free_shared_pages(its->tables[i].base, its->tables[i].order); else -- 2.25.1.windows.1

2 1

[openeuler:OLK-6.6] BUILD REGRESSION 59d9c906473fa92a8dc7a1b0c8e05046883fbed4
by kernel test robot 07 Jun '24

07 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 59d9c906473fa92a8dc7a1b0c8e05046883fbed4 !8750 ubifs: Check @c->dirty_[n|p Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-defconfig | |-- arch-arm64-kernel-cpufeature.c:warning:enable_pseudo_nmi-defined-but-not-used | `-- arch-arm64-kvm-vgic-vgic-mmio.c:warning:variable-is_pending-set-but-not-used `-- loongarch-allnoconfig `-- drivers-irqchip-irq-loongson-eiointc.c:error:NODES_PER_FLATMODE_NODE-undeclared-(first-use-in-this-function) clang_recent_errors `-- arm64-allmodconfig `-- arch-arm64-kvm-vgic-vgic-mmio.c:warning:variable-is_pending-set-but-not-used elapsed time: 1167m configs tested: 10 configs skipped: 104 tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc loongarch allmodconfig gcc loongarch allnoconfig gcc loongarch defconfig gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 defconfig gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect()
by Ziyang Xuan 07 Jun '24

07 Jun '24

From: Sungwoo Kim <iam(a)sung-woo.kim> stable inclusion from stable-v6.6.32 commit cfe560c7050bfb37b0d2491bbe7cd8b59e77fdc5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RMPS CVE: CVE-2024-36013 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 4d7b41c0e43995b0e992b9f8903109275744b658 upstream. Extend a critical section to prevent chan from early freeing. Also make the l2cap_connect() return type void. Nothing is using the returned value but it is ugly to return a potentially freed pointer. Making it void will help with backports because earlier kernels did use the return value. Now the compile will break for kernels where this patch is not a complete fix. Call stack summary: [use] l2cap_bredr_sig_cmd l2cap_connect ┌ mutex_lock(&conn->chan_lock); │ chan = pchan->ops->new_connection(pchan); <- alloc chan │ __l2cap_chan_add(conn, chan); │ l2cap_chan_hold(chan); │ list_add(&chan->list, &conn->chan_l); ... (1) └ mutex_unlock(&conn->chan_lock); chan->conf_state ... (4) <- use after free [free] l2cap_conn_del ┌ mutex_lock(&conn->chan_lock); │ foreach chan in conn->chan_l: ... (2) │ l2cap_chan_put(chan); │ l2cap_chan_destroy │ kfree(chan) ... (3) <- chan freed └ mutex_unlock(&conn->chan_lock); ================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: slab-use-after-free in l2cap_connect+0xa67/0x11a0 net/bluetooth/l2cap_core.c:4260 Read of size 8 at addr ffff88810bf040a0 by task kworker/u3:1/311 Fixes: 73ffa904b782 ("Bluetooth: Move conf_{req,rsp} stuff to struct l2cap_chan") Signed-off-by: Sungwoo Kim <iam(a)sung-woo.kim> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/bluetooth/l2cap_core.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 706d2478ddb33..edf83e886b82e 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -3902,13 +3902,12 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, return 0; } -static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, - struct l2cap_cmd_hdr *cmd, - u8 *data, u8 rsp_code, u8 amp_id) +static void l2cap_connect(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, + u8 *data, u8 rsp_code, u8 amp_id) { struct l2cap_conn_req *req = (struct l2cap_conn_req *) data; struct l2cap_conn_rsp rsp; - struct l2cap_chan *chan = NULL, *pchan; + struct l2cap_chan *chan = NULL, *pchan = NULL; int result, status = L2CAP_CS_NO_INFO; u16 dcid = 0, scid = __le16_to_cpu(req->scid); @@ -3921,7 +3920,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, &conn->hcon->dst, ACL_LINK); if (!pchan) { result = L2CAP_CR_BAD_PSM; - goto sendresp; + goto response; } mutex_lock(&conn->chan_lock); @@ -4008,17 +4007,15 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, } response: - l2cap_chan_unlock(pchan); - mutex_unlock(&conn->chan_lock); - l2cap_chan_put(pchan); - -sendresp: rsp.scid = cpu_to_le16(scid); rsp.dcid = cpu_to_le16(dcid); rsp.result = cpu_to_le16(result); rsp.status = cpu_to_le16(status); l2cap_send_cmd(conn, cmd->ident, rsp_code, sizeof(rsp), &rsp); + if (!pchan) + return; + if (result == L2CAP_CR_PEND && status == L2CAP_CS_NO_INFO) { struct l2cap_info_req info; info.type = cpu_to_le16(L2CAP_IT_FEAT_MASK); @@ -4041,7 +4038,9 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, chan->num_conf_req++; } - return chan; + l2cap_chan_unlock(pchan); + mutex_unlock(&conn->chan_lock); + l2cap_chan_put(pchan); } static int l2cap_connect_req(struct l2cap_conn *conn, -- 2.25.1

2 1

[PATCH OLK-6.6] ipv6: Fix potential uninit-value access in __ip6_make_skb()
by Zhengchao Shao 07 Jun '24

07 Jun '24

From: Shigeru Yoshida <syoshida(a)redhat.com> stable inclusion from stable-v6.6.31 commit 68c8ba16ab712eb709c6bab80ff151079d11d97a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UAZH CVE: CVE-2024-36903 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4e13d3a9c25b7080f8a619f961e943fe08c2672c ] As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in __ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags instead of testing HDRINCL on the socket to avoid a race condition which causes uninit-value access. Fixes: ea30388baebc ("ipv6: Fix an uninit variable access bug in __ip6_make_skb()") Signed-off-by: Shigeru Yoshida <syoshida(a)redhat.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv6/ip6_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 53fe1375b147..fba789cbd215 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -2003,7 +2003,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk, u8 icmp6_type; if (sk->sk_socket->type == SOCK_RAW && - !inet_test_bit(HDRINCL, sk)) + !(fl6->flowi6_flags & FLOWI_FLAG_KNOWN_NH)) icmp6_type = fl6->fl6_icmp_type; else icmp6_type = icmp6_hdr(skb)->icmp6_type; -- 2.34.1

2 1

[PATCH OLK-5.10] dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA
by Ze Zuo 07 Jun '24

07 Jun '24

From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> stable inclusion from stable-v5.10.210 commit ae6769ba51417c1c86fb645812d5bff455eee802 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q99M CVE: CVE-2024-35833 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 3aa58cb51318e329d203857f7a191678e60bb714 ] This dma_alloc_coherent() is undone neither in the remove function, nor in the error handling path of fsl_qdma_probe(). Switch to the managed version to fix both issues. Fixes: b092529e0aa0 ("dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Link: https://lore.kernel.org/r/7f66aa14f59d32b13672dde28602b47deb294e1f.17046215… Signed-off-by: Vinod Koul <vkoul(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- drivers/dma/fsl-qdma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c index a59d0e743af2..bc0830de08b4 100644 --- a/drivers/dma/fsl-qdma.c +++ b/drivers/dma/fsl-qdma.c @@ -514,11 +514,11 @@ static struct fsl_qdma_queue queue_temp = queue_head + i + (j * queue_num); queue_temp->cq = - dma_alloc_coherent(&pdev->dev, - sizeof(struct fsl_qdma_format) * - queue_size[i], - &queue_temp->bus_addr, - GFP_KERNEL); + dmam_alloc_coherent(&pdev->dev, + sizeof(struct fsl_qdma_format) * + queue_size[i], + &queue_temp->bus_addr, + GFP_KERNEL); if (!queue_temp->cq) return NULL; queue_temp->block_base = fsl_qdma->block_base + -- 2.25.1

2 1

[PATCH OLK-6.6 0/1] fix CVE-2024-27401
by Hongbo Li 07 Jun '24

07 Jun '24

Fix CVE-2024-27401 Thanassis Avgerinos (1): firewire: nosy: ensure user_length is taken into account when fetching packet contents drivers/firewire/nosy.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/1] fix CVE-2024-36906
by Hongbo Li 07 Jun '24

07 Jun '24

Fix CVE-2024-36906. Boy.Wu (1): ARM: 9381/1: kasan: clear stale stack poison arch/arm/kernel/sleep.S | 4 ++++ 1 file changed, 4 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] net: hns3: fix out-of-bounds access may occur when coalesce info is read via debugfs
by Wei Li 07 Jun '24

07 Jun '24

From: Yonglong Liu <liuyonglong(a)huawei.com> mainline inclusion from mainline-v6.7-rc2 commit 53aba458f23846112c0d44239580ff59bc5c36c3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RFNY CVE: CVE-2023-52807 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?i… -------------------------------- The hns3 driver define an array of string to show the coalesce info, but if the kernel adds a new mode or a new state, out-of-bounds access may occur when coalesce info is read via debugfs, this patch fix the problem. Fixes: c99fead7cb07 ("net: hns3: add debugfs support for interrupt coalesce") Signed-off-by: Yonglong Liu <liuyonglong(a)huawei.com> Signed-off-by: Jijie Shao <shaojijie(a)huawei.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Wei Li <liwei391(a)huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index f504e64917df..8ab8e8d3b960 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -484,11 +484,14 @@ static void hns3_get_coal_info(struct hns3_enet_tqp_vector *tqp_vector, } sprintf(result[j++], "%d", i); - sprintf(result[j++], "%s", dim_state_str[dim->state]); + sprintf(result[j++], "%s", dim->state < ARRAY_SIZE(dim_state_str) ? + dim_state_str[dim->state] : "unknown"); sprintf(result[j++], "%u", dim->profile_ix); - sprintf(result[j++], "%s", dim_cqe_mode_str[dim->mode]); + sprintf(result[j++], "%s", dim->mode < ARRAY_SIZE(dim_cqe_mode_str) ? + dim_cqe_mode_str[dim->mode] : "unknown"); sprintf(result[j++], "%s", - dim_tune_stat_str[dim->tune_state]); + dim->tune_state < ARRAY_SIZE(dim_tune_stat_str) ? + dim_tune_stat_str[dim->tune_state] : "unknown"); sprintf(result[j++], "%u", dim->steps_left); sprintf(result[j++], "%u", dim->steps_right); sprintf(result[j++], "%u", dim->tired); -- 2.25.1

2 1

[PATCH V2 OLK-5.10 0/9] Add support for PCC Operation Region
by Zhang Zekun 07 Jun '24

07 Jun '24

Add support for PCC Operation Region v2: - Fix check format error - Add configs in x86, because it will be enabled by default Huisong Li (3): ACPI: PCC: replace wait_for_completion() ACPI: PCC: Fix Tx acknowledge in the PCC address space handler ACPI: PCC: Setup PCC Opregion handler only if platform interrupt is available Manank Patel (1): ACPI: PCC: Fix unintentional integer overflow Rafael Mendonca (1): ACPI: PCC: Release resources on address space setup failure path Sudeep Holla (2): ACPICA: Add support for PCC Opregion special context data ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype Zhang Zekun (1): arm64: config: Enable ACPI_PCC kernel test robot (1): ACPI: PCC: pcc_ctx can be static arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/acpi/Kconfig | 17 +++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_pcc.c | 153 +++++++++++++++++++++++++ drivers/acpi/acpica/evregion.c | 10 ++ drivers/acpi/bus.c | 1 + include/acpi/actypes.h | 8 ++ include/linux/acpi.h | 6 + 9 files changed, 198 insertions(+) create mode 100644 drivers/acpi/acpi_pcc.c -- 2.17.1

2 10

[PATCH openEuler-1.0-LTS] media: zr364xx: fix memory leak in zr364xx_start_readpipe
by Zhao Wenhui 07 Jun '24

07 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> stable inclusion from stable-v4.19.198 commit 021c294dff030f3ba38eb81e400ba123db32ecbc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4CY CVE: CVE-2021-47344 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 0a045eac8d0427b64577a24d74bb8347c905ac65 upstream. syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usb_submit_urb() fail. backtrace: [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576 Fixes: ccbf035ae5de ("V4L/DVB (12278): zr364xx: implement V4L2_CAP_STREAMING") Cc: stable(a)vger.kernel.org Reported-by: syzbot+af4fa391ef18efdd5f69(a)syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin(a)gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhao Wenhui <zhaowenhui8(a)huawei.com> --- drivers/media/usb/zr364xx/zr364xx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/usb/zr364xx/zr364xx.c b/drivers/media/usb/zr364xx/zr364xx.c index 501030bb2e7d..f92d7688b07a 100644 --- a/drivers/media/usb/zr364xx/zr364xx.c +++ b/drivers/media/usb/zr364xx/zr364xx.c @@ -1058,6 +1058,7 @@ static int zr364xx_start_readpipe(struct zr364xx_camera *cam) DBG("submitting URB %p\n", pipe_info->stream_urb); retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL); if (retval) { + usb_free_urb(pipe_info->stream_urb); printk(KERN_ERR KBUILD_MODNAME ": start read pipe failed\n"); return retval; } -- 2.34.1

2 1

[PATCH OLK-5.10] usb: typec: ucsi: Limit read size on v1.2
by Zheng Zucheng 07 Jun '24

07 Jun '24

From: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> stable inclusion from stable-v6.6.27 commit 266f403ec47573046dee4bcebda82777ce702c40 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QGLG CVE: CVE-2024-35924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b3db266fb031fba88c423d4bb8983a73a3db6527 ] Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2. Tested-by: Neil Armstrong <neil.armstrong(a)linaro.org> Reviewed-by: Prashant Malani <pmalani(a)chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus(a)linux.intel.com> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> Link: https://lore.kernel.org/r/20240209143723.v5.1.Iacf5570a66b82b73ef03daa6557e… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Conflicts: drivers/usb/typec/ucsi/ucsi.c [Some contexts around ucsi_register different. No functional impact.] Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- drivers/usb/typec/ucsi/ucsi.c | 26 ++++++++++++++++++++++++-- drivers/usb/typec/ucsi/ucsi.h | 11 +++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 4cd5c291cdf3..be3104dd56a2 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -36,6 +36,19 @@ */ #define UCSI_SWAP_TIMEOUT_MS 5000 +static int ucsi_read_message_in(struct ucsi *ucsi, void *buf, + size_t buf_size) +{ + /* + * Below UCSI 2.0, MESSAGE_IN was limited to 16 bytes. Truncate the + * reads here. + */ + if (ucsi->version <= UCSI_VERSION_1_2) + buf_size = clamp(buf_size, 0, 16); + + return ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, buf, buf_size); +} + static int ucsi_acknowledge_command(struct ucsi *ucsi) { u64 ctrl; @@ -72,7 +85,7 @@ static int ucsi_read_error(struct ucsi *ucsi) if (ret < 0) return ret; - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, &error, sizeof(error)); + ret = ucsi_read_message_in(ucsi, &error, sizeof(error)); if (ret) return ret; @@ -165,7 +178,7 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command, length = ret; if (data) { - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, data, size); + ret = ucsi_read_message_in(ucsi, data, size); if (ret) goto out; } @@ -1303,6 +1316,15 @@ int ucsi_register(struct ucsi *ucsi) if (!ucsi->version) return -ENODEV; + /* + * Version format is JJ.M.N (JJ = Major version, M = Minor version, + * N = sub-minor version). + */ + dev_dbg(ucsi->dev, "Registered UCSI interface with version %x.%x.%x", + UCSI_BCD_GET_MAJOR(ucsi->version), + UCSI_BCD_GET_MINOR(ucsi->version), + UCSI_BCD_GET_SUBMINOR(ucsi->version)); + queue_work(system_long_wq, &ucsi->work); return 0; diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index fce23ad16c6d..32f25dc88258 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -21,6 +21,17 @@ struct ucsi_altmode; #define UCSI_CONTROL 8 #define UCSI_MESSAGE_IN 16 #define UCSI_MESSAGE_OUT 32 +#define UCSIv2_MESSAGE_OUT 272 + +/* UCSI versions */ +#define UCSI_VERSION_1_2 0x0120 +#define UCSI_VERSION_2_0 0x0200 +#define UCSI_VERSION_2_1 0x0210 +#define UCSI_VERSION_3_0 0x0300 + +#define UCSI_BCD_GET_MAJOR(_v_) (((_v_) >> 8) & 0xFF) +#define UCSI_BCD_GET_MINOR(_v_) (((_v_) >> 4) & 0x0F) +#define UCSI_BCD_GET_SUBMINOR(_v_) ((_v_) & 0x0F) /* Command Status and Connector Change Indication (CCI) bits */ #define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 1)) >> 1) -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] usb: typec: ucsi: Limit read size on v1.2
by Zheng Zucheng 07 Jun '24

07 Jun '24

From: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> stable inclusion from stable-v6.6.27 commit 266f403ec47573046dee4bcebda82777ce702c40 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QGLG CVE: CVE-2024-35924 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b3db266fb031fba88c423d4bb8983a73a3db6527 ] Between UCSI 1.2 and UCSI 2.0, the size of the MESSAGE_IN region was increased from 16 to 256. In order to avoid overflowing reads for older systems, add a mechanism to use the read UCSI version to truncate read sizes on UCSI v1.2. Tested-by: Neil Armstrong <neil.armstrong(a)linaro.org> Reviewed-by: Prashant Malani <pmalani(a)chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus(a)linux.intel.com> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit(a)chromium.org> Link: https://lore.kernel.org/r/20240209143723.v5.1.Iacf5570a66b82b73ef03daa6557e… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> Conflicts: drivers/usb/typec/ucsi/ucsi.c [Some contexts around ucsi_register different. No functional impact.] Signed-off-by: Zheng Zucheng <zhengzucheng(a)huawei.com> --- drivers/usb/typec/ucsi/ucsi.c | 26 ++++++++++++++++++++++++-- drivers/usb/typec/ucsi/ucsi.h | 11 +++++++++++ 2 files changed, 35 insertions(+), 2 deletions(-) diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 4cd5c291cdf3..be3104dd56a2 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -36,6 +36,19 @@ */ #define UCSI_SWAP_TIMEOUT_MS 5000 +static int ucsi_read_message_in(struct ucsi *ucsi, void *buf, + size_t buf_size) +{ + /* + * Below UCSI 2.0, MESSAGE_IN was limited to 16 bytes. Truncate the + * reads here. + */ + if (ucsi->version <= UCSI_VERSION_1_2) + buf_size = clamp(buf_size, 0, 16); + + return ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, buf, buf_size); +} + static int ucsi_acknowledge_command(struct ucsi *ucsi) { u64 ctrl; @@ -72,7 +85,7 @@ static int ucsi_read_error(struct ucsi *ucsi) if (ret < 0) return ret; - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, &error, sizeof(error)); + ret = ucsi_read_message_in(ucsi, &error, sizeof(error)); if (ret) return ret; @@ -165,7 +178,7 @@ int ucsi_send_command(struct ucsi *ucsi, u64 command, length = ret; if (data) { - ret = ucsi->ops->read(ucsi, UCSI_MESSAGE_IN, data, size); + ret = ucsi_read_message_in(ucsi, data, size); if (ret) goto out; } @@ -1303,6 +1316,15 @@ int ucsi_register(struct ucsi *ucsi) if (!ucsi->version) return -ENODEV; + /* + * Version format is JJ.M.N (JJ = Major version, M = Minor version, + * N = sub-minor version). + */ + dev_dbg(ucsi->dev, "Registered UCSI interface with version %x.%x.%x", + UCSI_BCD_GET_MAJOR(ucsi->version), + UCSI_BCD_GET_MINOR(ucsi->version), + UCSI_BCD_GET_SUBMINOR(ucsi->version)); + queue_work(system_long_wq, &ucsi->work); return 0; diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index fce23ad16c6d..32f25dc88258 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -21,6 +21,17 @@ struct ucsi_altmode; #define UCSI_CONTROL 8 #define UCSI_MESSAGE_IN 16 #define UCSI_MESSAGE_OUT 32 +#define UCSIv2_MESSAGE_OUT 272 + +/* UCSI versions */ +#define UCSI_VERSION_1_2 0x0120 +#define UCSI_VERSION_2_0 0x0200 +#define UCSI_VERSION_2_1 0x0210 +#define UCSI_VERSION_3_0 0x0300 + +#define UCSI_BCD_GET_MAJOR(_v_) (((_v_) >> 8) & 0xFF) +#define UCSI_BCD_GET_MINOR(_v_) (((_v_) >> 4) & 0x0F) +#define UCSI_BCD_GET_SUBMINOR(_v_) ((_v_) & 0x0F) /* Command Status and Connector Change Indication (CCI) bits */ #define UCSI_CCI_CONNECTOR(_c_) (((_c_) & GENMASK(7, 1)) >> 1) -- 2.34.1

2 1

[PATCH OLK-6.6] rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
by Ziyang Xuan 07 Jun '24

07 Jun '24

From: Roded Zats <rzats(a)paloaltonetworks.com> stable inclusion from stable-v6.6.31 commit 206003c748b88890a910ef7142d18f77be57550b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TLS8 CVE: CVE-2024-36017 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1aec77b2bb2ed1db0f5efc61c4c1ca3813307489 ] Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl. Fixes: 79aab093a0b5 ("net: Update API for VF vlan protocol 802.1ad support") Signed-off-by: Roded Zats <rzats(a)paloaltonetworks.com> Reviewed-by: Donald Hunter <donald.hunter(a)gmail.com> Link: https://lore.kernel.org/r/20240502155751.75705-1-rzats@paloaltonetworks.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> --- net/core/rtnetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index e8bf481e80f72..89964270cf27f 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2519,7 +2519,7 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) nla_for_each_nested(attr, tb[IFLA_VF_VLAN_LIST], rem) { if (nla_type(attr) != IFLA_VF_VLAN_INFO || - nla_len(attr) < NLA_HDRLEN) { + nla_len(attr) < sizeof(struct ifla_vf_vlan_info)) { return -EINVAL; } if (len >= MAX_VLAN_LIST_LEN) -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/2] CVE-2021-47294
by Hui Tang 07 Jun '24

07 Jun '24

CVE-2021-47294 fix. Kuniyuki Iwashima (1): netrom: Fix use-after-free of a listening socket. Nguyen Dinh Phi (1): netrom: Decrease sock refcount when sock timers expire net/netrom/nr_timer.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) -- 2.34.1

2 3

[PATCH openEuler-1.0-LTS] ALSA: usb-audio: Stop parsing channels bits when all channels are found.
by Yuan Can 07 Jun '24

07 Jun '24

From: Johan Carlsson <johan.carlsson(a)teenage.engineering> stable inclusion from stable-v5.10.214 commit 5cd466673b34bac369334f66cbe14bb77b7d7827 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q91N CVE: CVE-2024-27436 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- If a usb audio device sets more bits than the amount of channels it could write outside of the map array. Signed-off-by: Johan Carlsson <johan.carlsson(a)teenage.engineering> Fixes: 04324ccc75f9 ("ALSA: usb-audio: add channel map support") Message-ID: <20240313081509.9801-1-johan.carlsson(a)teenage.engineering> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Yuan Can <yuancan(a)huawei.com> --- sound/usb/stream.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 971d39403b43..4a5523f181e0 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -305,9 +305,12 @@ static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits, c = 0; if (bits) { - for (; bits && *maps; maps++, bits >>= 1) + for (; bits && *maps; maps++, bits >>= 1) { if (bits & 1) chmap->map[c++] = *maps; + if (c == chmap->channels) + break; + } } else { /* If we're missing wChannelConfig, then guess something to make sure the channel map is not skipped entirely */ -- 2.17.1

2 7

[PATCH openEuler-1.0-LTS 0/2] CVE-2023-52810
by Li Nan 07 Jun '24

07 Jun '24

Juntong Deng (1): fs/jfs: Add check for negative db_l2nbperpage Siddh Raman Pant (1): jfs: jfs_dmap: Validate db_l2nbperpage while mounting fs/jfs/jfs_filsys.h | 2 ++ fs/jfs/jfs_dmap.c | 7 +++++++ 2 files changed, 9 insertions(+) -- 2.39.2

2 3

[PATCH openEuler-22.03-LTS-SP1] netfilter: nf_tables: honor table dormant flag from netdev release event path
by Dong Chenchen 07 Jun '24

07 Jun '24

From: Pablo Neira Ayuso <pablo(a)netfilter.org> stable inclusion from stable-v5.10.216 commit e4bb6da24de336a7899033a65490ed2d892efa5b category: bugfix bugzilla: 190062, https://gitee.com/src-openeuler/kernel/issues/I9QR8O CVE: CVE-2024-36005 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 8e30abc9ace4f0add4cd761dfdbfaebae5632dd2 ] Check for table dormant flag otherwise netdev release event path tries to unregister an already unregistered hook. [524854.857999] ------------[ cut here ]------------ [524854.858010] WARNING: CPU: 0 PID: 3386599 at net/netfilter/core.c:501 __nf_unregister_net_hook+0x21a/0x260 [...] [524854.858848] CPU: 0 PID: 3386599 Comm: kworker/u32:2 Not tainted 6.9.0-rc3+ #365 [524854.858869] Workqueue: netns cleanup_net [524854.858886] RIP: 0010:__nf_unregister_net_hook+0x21a/0x260 [524854.858903] Code: 24 e8 aa 73 83 ff 48 63 43 1c 83 f8 01 0f 85 3d ff ff ff e8 98 d1 f0 ff 48 8b 3c 24 e8 8f 73 83 ff 48 63 43 1c e9 26 ff ff ff <0f> 0b 48 83 c4 18 48 c7 c7 00 68 e9 82 5b 5d 41 5c 41 5d 41 5e 41 [524854.858914] RSP: 0018:ffff8881e36d79e0 EFLAGS: 00010246 [524854.858926] RAX: 0000000000000000 RBX: ffff8881339ae790 RCX: ffffffff81ba524a [524854.858936] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881c8a16438 [524854.858945] RBP: ffff8881c8a16438 R08: 0000000000000001 R09: ffffed103c6daf34 [524854.858954] R10: ffff8881e36d79a7 R11: 0000000000000000 R12: 0000000000000005 [524854.858962] R13: ffff8881c8a16000 R14: 0000000000000000 R15: ffff8881351b5a00 [524854.858971] FS: 0000000000000000(0000) GS:ffff888390800000(0000) knlGS:0000000000000000 [524854.858982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [524854.858991] CR2: 00007fc9be0f16f4 CR3: 00000001437cc004 CR4: 00000000001706f0 [524854.859000] Call Trace: [524854.859006] <TASK> [524854.859013] ? __warn+0x9f/0x1a0 [524854.859027] ? __nf_unregister_net_hook+0x21a/0x260 [524854.859044] ? report_bug+0x1b1/0x1e0 [524854.859060] ? handle_bug+0x3c/0x70 [524854.859071] ? exc_invalid_op+0x17/0x40 [524854.859083] ? asm_exc_invalid_op+0x1a/0x20 [524854.859100] ? __nf_unregister_net_hook+0x6a/0x260 [524854.859116] ? __nf_unregister_net_hook+0x21a/0x260 [524854.859135] nf_tables_netdev_event+0x337/0x390 [nf_tables] [524854.859304] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables] [524854.859461] ? packet_notifier+0xb3/0x360 [524854.859476] ? _raw_spin_unlock_irqrestore+0x11/0x40 [524854.859489] ? dcbnl_netdevice_event+0x35/0x140 [524854.859507] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables] [524854.859661] notifier_call_chain+0x7d/0x140 [524854.859677] unregister_netdevice_many_notify+0x5e1/0xae0 Fixes: d54725cd11a5 ("netfilter: nf_tables: support for multiple devices per netdev hook") Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/netfilter/nft_chain_filter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nft_chain_filter.c b/net/netfilter/nft_chain_filter.c index a18582a4ecf3..aad676402919 100644 --- a/net/netfilter/nft_chain_filter.c +++ b/net/netfilter/nft_chain_filter.c @@ -339,7 +339,9 @@ static void nft_netdev_event(unsigned long event, struct net_device *dev, return; if (n > 1) { - nf_unregister_net_hook(ctx->net, &found->ops); + if (!(ctx->chain->table->flags & NFT_TABLE_F_DORMANT)) + nf_unregister_net_hook(ctx->net, &found->ops); + list_del_rcu(&found->list); kfree_rcu(found, rcu); return; -- 2.25.1

2 1

[PATCH OLK-5.10] netfilter: nf_tables: honor table dormant flag from netdev release event path
by Dong Chenchen 07 Jun '24

07 Jun '24

From: Pablo Neira Ayuso <pablo(a)netfilter.org> stable inclusion from stable-v5.10.216 commit e4bb6da24de336a7899033a65490ed2d892efa5b category: bugfix bugzilla: 190062, https://gitee.com/src-openeuler/kernel/issues/I9QR8O CVE: CVE-2024-36005 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 8e30abc9ace4f0add4cd761dfdbfaebae5632dd2 ] Check for table dormant flag otherwise netdev release event path tries to unregister an already unregistered hook. [524854.857999] ------------[ cut here ]------------ [524854.858010] WARNING: CPU: 0 PID: 3386599 at net/netfilter/core.c:501 __nf_unregister_net_hook+0x21a/0x260 [...] [524854.858848] CPU: 0 PID: 3386599 Comm: kworker/u32:2 Not tainted 6.9.0-rc3+ #365 [524854.858869] Workqueue: netns cleanup_net [524854.858886] RIP: 0010:__nf_unregister_net_hook+0x21a/0x260 [524854.858903] Code: 24 e8 aa 73 83 ff 48 63 43 1c 83 f8 01 0f 85 3d ff ff ff e8 98 d1 f0 ff 48 8b 3c 24 e8 8f 73 83 ff 48 63 43 1c e9 26 ff ff ff <0f> 0b 48 83 c4 18 48 c7 c7 00 68 e9 82 5b 5d 41 5c 41 5d 41 5e 41 [524854.858914] RSP: 0018:ffff8881e36d79e0 EFLAGS: 00010246 [524854.858926] RAX: 0000000000000000 RBX: ffff8881339ae790 RCX: ffffffff81ba524a [524854.858936] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881c8a16438 [524854.858945] RBP: ffff8881c8a16438 R08: 0000000000000001 R09: ffffed103c6daf34 [524854.858954] R10: ffff8881e36d79a7 R11: 0000000000000000 R12: 0000000000000005 [524854.858962] R13: ffff8881c8a16000 R14: 0000000000000000 R15: ffff8881351b5a00 [524854.858971] FS: 0000000000000000(0000) GS:ffff888390800000(0000) knlGS:0000000000000000 [524854.858982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [524854.858991] CR2: 00007fc9be0f16f4 CR3: 00000001437cc004 CR4: 00000000001706f0 [524854.859000] Call Trace: [524854.859006] <TASK> [524854.859013] ? __warn+0x9f/0x1a0 [524854.859027] ? __nf_unregister_net_hook+0x21a/0x260 [524854.859044] ? report_bug+0x1b1/0x1e0 [524854.859060] ? handle_bug+0x3c/0x70 [524854.859071] ? exc_invalid_op+0x17/0x40 [524854.859083] ? asm_exc_invalid_op+0x1a/0x20 [524854.859100] ? __nf_unregister_net_hook+0x6a/0x260 [524854.859116] ? __nf_unregister_net_hook+0x21a/0x260 [524854.859135] nf_tables_netdev_event+0x337/0x390 [nf_tables] [524854.859304] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables] [524854.859461] ? packet_notifier+0xb3/0x360 [524854.859476] ? _raw_spin_unlock_irqrestore+0x11/0x40 [524854.859489] ? dcbnl_netdevice_event+0x35/0x140 [524854.859507] ? __pfx_nf_tables_netdev_event+0x10/0x10 [nf_tables] [524854.859661] notifier_call_chain+0x7d/0x140 [524854.859677] unregister_netdevice_many_notify+0x5e1/0xae0 Fixes: d54725cd11a5 ("netfilter: nf_tables: support for multiple devices per netdev hook") Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/netfilter/nft_chain_filter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nft_chain_filter.c b/net/netfilter/nft_chain_filter.c index a18582a4ecf3..aad676402919 100644 --- a/net/netfilter/nft_chain_filter.c +++ b/net/netfilter/nft_chain_filter.c @@ -339,7 +339,9 @@ static void nft_netdev_event(unsigned long event, struct net_device *dev, return; if (n > 1) { - nf_unregister_net_hook(ctx->net, &found->ops); + if (!(ctx->chain->table->flags & NFT_TABLE_F_DORMANT)) + nf_unregister_net_hook(ctx->net, &found->ops); + list_del_rcu(&found->list); kfree_rcu(found, rcu); return; -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/2] CVE-2023-52810
by Li Nan 07 Jun '24

07 Jun '24

Juntong Deng (1): fs/jfs: Add check for negative db_l2nbperpage Siddh Raman Pant (1): jfs: jfs_dmap: Validate db_l2nbperpage while mounting fs/jfs/jfs_filsys.h | 2 ++ fs/jfs/jfs_dmap.c | 7 +++++++ 2 files changed, 9 insertions(+) -- 2.39.2

2 3

[PATCH OLK-5.10 0/9] Add support for PCC Operation Region
by Zhang Zekun 07 Jun '24

07 Jun '24

Add support for PCC Operation Region Huisong Li (3): ACPI: PCC: replace wait_for_completion() ACPI: PCC: Fix Tx acknowledge in the PCC address space handler ACPI: PCC: Setup PCC Opregion handler only if platform interrupt is available Manank Patel (1): ACPI: PCC: Fix unintentional integer overflow Rafael Mendonca (1): ACPI: PCC: Release resources on address space setup failure path Sudeep Holla (2): ACPICA: Add support for PCC Opregion special context data ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype Zhang Zekun (1): arm64: config: Enable ACPI_PCC kernel test robot (1): ACPI: PCC: pcc_ctx can be static arch/arm64/configs/openeuler_defconfig | 1 + drivers/acpi/Kconfig | 17 +++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_pcc.c | 153 +++++++++++++++++++++++++ drivers/acpi/acpica/evregion.c | 10 ++ drivers/acpi/bus.c | 1 + include/acpi/actypes.h | 8 ++ include/linux/acpi.h | 6 + 8 files changed, 197 insertions(+) create mode 100644 drivers/acpi/acpi_pcc.c -- 2.17.1

2 10

[PATCH openEuler-22.03-LTS-SP1] Bluetooth: SCO: Fix not validating setsockopt user input
by Tong Tiangen 07 Jun '24

07 Jun '24

From: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> stable inclusion from stable-v5.10.216 commit b0e30c37695b614bee69187f86eaf250e36606ce category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRB2 CVE: CVE-2024-35967 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit 51eda36d33e43201e7a4fd35232e069b2c850b01 ] syzbot reported sco_sock_setsockopt() is copying data without checking user input length. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578 Fixes: ad10b1a48754 ("Bluetooth: Add Bluetooth socket voice option") Fixes: b96e9c671b05 ("Bluetooth: Add BT_DEFER_SETUP option to sco socket") Fixes: 00398e1d5183 ("Bluetooth: Add support for BT_PKT_STATUS CMSG data for SCO connections") Fixes: f6873401a608 ("Bluetooth: Allow setting of codec for HFP offload use case") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- include/net/bluetooth/bluetooth.h | 9 +++++++++ net/bluetooth/sco.c | 19 ++++++++----------- 2 files changed, 17 insertions(+), 11 deletions(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 355835639ae5..7d2bd562da4b 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -487,6 +487,15 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk, return skb; } +static inline int bt_copy_from_sockptr(void *dst, size_t dst_size, + sockptr_t src, size_t src_size) +{ + if (dst_size > src_size) + return -EINVAL; + + return copy_from_sockptr(dst, src, dst_size); +} + int bt_to_errno(u16 code); void hci_sock_set_flag(struct sock *sk, int nr); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 3ee342665c97..f9a2993fd452 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -829,7 +829,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; - int len, err = 0; + int err = 0; struct bt_voice voice; u32 opt; @@ -845,10 +845,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (copy_from_sockptr(&opt, optval, sizeof(u32))) { - err = -EFAULT; + err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen); + if (err) break; - } if (opt) set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); @@ -865,11 +864,10 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, voice.setting = sco_pi(sk)->setting; - len = min_t(unsigned int, sizeof(voice), optlen); - if (copy_from_sockptr(&voice, optval, len)) { - err = -EFAULT; + err = bt_copy_from_sockptr(&voice, sizeof(voice), optval, + optlen); + if (err) break; - } /* Explicitly check for these values */ if (voice.setting != BT_VOICE_TRANSPARENT && @@ -882,10 +880,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_PKT_STATUS: - if (copy_from_sockptr(&opt, optval, sizeof(u32))) { - err = -EFAULT; + err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen); + if (err) break; - } if (opt) sco_pi(sk)->cmsg_mask |= SCO_CMSG_PKT_STATUS; -- 2.25.1

2 1

[PATCH OLK-5.10] Bluetooth: SCO: Fix not validating setsockopt user input
by Tong Tiangen 07 Jun '24

07 Jun '24

From: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> stable inclusion from stable-v5.10.216 commit b0e30c37695b614bee69187f86eaf250e36606ce category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRB2 CVE: CVE-2024-35967 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit 51eda36d33e43201e7a4fd35232e069b2c850b01 ] syzbot reported sco_sock_setsockopt() is copying data without checking user input length. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578 Fixes: ad10b1a48754 ("Bluetooth: Add Bluetooth socket voice option") Fixes: b96e9c671b05 ("Bluetooth: Add BT_DEFER_SETUP option to sco socket") Fixes: 00398e1d5183 ("Bluetooth: Add support for BT_PKT_STATUS CMSG data for SCO connections") Fixes: f6873401a608 ("Bluetooth: Allow setting of codec for HFP offload use case") Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- include/net/bluetooth/bluetooth.h | 9 +++++++++ net/bluetooth/sco.c | 19 ++++++++----------- 2 files changed, 17 insertions(+), 11 deletions(-) diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 355835639ae5..7d2bd562da4b 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -487,6 +487,15 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk, return skb; } +static inline int bt_copy_from_sockptr(void *dst, size_t dst_size, + sockptr_t src, size_t src_size) +{ + if (dst_size > src_size) + return -EINVAL; + + return copy_from_sockptr(dst, src, dst_size); +} + int bt_to_errno(u16 code); void hci_sock_set_flag(struct sock *sk, int nr); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 3ee342665c97..f9a2993fd452 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -829,7 +829,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; - int len, err = 0; + int err = 0; struct bt_voice voice; u32 opt; @@ -845,10 +845,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (copy_from_sockptr(&opt, optval, sizeof(u32))) { - err = -EFAULT; + err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen); + if (err) break; - } if (opt) set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); @@ -865,11 +864,10 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, voice.setting = sco_pi(sk)->setting; - len = min_t(unsigned int, sizeof(voice), optlen); - if (copy_from_sockptr(&voice, optval, len)) { - err = -EFAULT; + err = bt_copy_from_sockptr(&voice, sizeof(voice), optval, + optlen); + if (err) break; - } /* Explicitly check for these values */ if (voice.setting != BT_VOICE_TRANSPARENT && @@ -882,10 +880,9 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_PKT_STATUS: - if (copy_from_sockptr(&opt, optval, sizeof(u32))) { - err = -EFAULT; + err = bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen); + if (err) break; - } if (opt) sco_pi(sk)->cmsg_mask |= SCO_CMSG_PKT_STATUS; -- 2.25.1

2 1

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION bc352912f825241ca0aa170080d3807ba4a67d72
by kernel test robot 07 Jun '24

07 Jun '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: bc352912f825241ca0aa170080d3807ba4a67d72 !8620 CVE-2024-35896 Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-allmodconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- arm64-defconfig | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:ISO-C90-forbids-mixed-declarations-and-code |-- x86_64-buildonly-randconfig-002-20240607 | `-- fs-f2fs-recovery.o:warning:objtool:missing-symbol-for-section-.init.text `-- x86_64-buildonly-randconfig-005-20240607 `-- mm-memory_hotplug.c:warning:start-may-be-used-uninitialized clang_recent_errors |-- x86_64-allyesconfig | |-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension | `-- fs-f2fs-.tmp_recovery.o:warning:objtool:missing-symbol-for-section-.init.text |-- x86_64-randconfig-004-20240607 | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension |-- x86_64-randconfig-015-20240607 | `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension `-- x86_64-randconfig-072-20240607 `-- drivers-gpu-drm-nouveau-nvkm-core-object.c:warning:mixing-declarations-and-code-is-a-C99-extension elapsed time: 1010m configs tested: 32 configs skipped: 147 tested configs: arm64 allmodconfig gcc arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240607 gcc arm64 randconfig-002-20240607 gcc arm64 randconfig-003-20240607 gcc arm64 randconfig-004-20240607 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240607 gcc x86_64 buildonly-randconfig-002-20240607 gcc x86_64 buildonly-randconfig-003-20240607 clang x86_64 buildonly-randconfig-004-20240607 gcc x86_64 buildonly-randconfig-005-20240607 gcc x86_64 buildonly-randconfig-006-20240607 clang x86_64 defconfig gcc x86_64 randconfig-001-20240607 gcc x86_64 randconfig-002-20240607 gcc x86_64 randconfig-003-20240607 clang x86_64 randconfig-004-20240607 clang x86_64 randconfig-005-20240607 clang x86_64 randconfig-006-20240607 gcc x86_64 randconfig-011-20240607 gcc x86_64 randconfig-012-20240607 clang x86_64 randconfig-013-20240607 gcc x86_64 randconfig-014-20240607 gcc x86_64 randconfig-015-20240607 clang x86_64 randconfig-016-20240607 clang x86_64 randconfig-071-20240607 gcc x86_64 randconfig-072-20240607 clang x86_64 randconfig-073-20240607 gcc x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc
by Xiang Yang 06 Jun '24

06 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> stable inclusion from stable-v4.19.315 commit 7d303dee473ba3529d75b63491e9963342107bed category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S26U CVE: CVE-2023-52880 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 67c37756898a5a6b2941a13ae7260c89b54e0d88 upstream. Any unprivileged user can attach N_GSM0710 ldisc, but it requires CAP_NET_ADMIN to create a GSM network anyway. Require initial namespace CAP_NET_ADMIN to do that. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> Link: https://lore.kernel.org/r/20230731185942.279611-1-cascardo@canonical.com Cc: Salvatore Bonaccorso <carnil(a)debian.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xiang Yang <xiangyang3(a)huawei.com> --- drivers/tty/n_gsm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 05d9064b4ee7..10ccad12c92b 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2356,6 +2356,9 @@ static int gsmld_open(struct tty_struct *tty) struct gsm_mux *gsm; int ret; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (tty->ops->write == NULL) return -EINVAL; -- 2.34.1

2 1

[PATCH OLK-5.10] tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc
by Xiang Yang 06 Jun '24

06 Jun '24

From: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> stable inclusion from stable-v5.10.215 commit ada28eb4b9561aab93942f3224a2e41d76fe57fa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S26U CVE: CVE-2023-52880 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 67c37756898a5a6b2941a13ae7260c89b54e0d88 upstream. Any unprivileged user can attach N_GSM0710 ldisc, but it requires CAP_NET_ADMIN to create a GSM network anyway. Require initial namespace CAP_NET_ADMIN to do that. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> Link: https://lore.kernel.org/r/20230731185942.279611-1-cascardo@canonical.com Cc: Salvatore Bonaccorso <carnil(a)debian.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xiang Yang <xiangyang3(a)huawei.com> --- drivers/tty/n_gsm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index fa49529682ce..c20f69a4c5e9 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2661,6 +2661,9 @@ static int gsmld_open(struct tty_struct *tty) { struct gsm_mux *gsm; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (tty->ops->write == NULL) return -EINVAL; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] netrom: Decrease sock refcount when sock timers expire
by Hui Tang 06 Jun '24

06 Jun '24

From: Nguyen Dinh Phi <phind.uet(a)gmail.com> stable inclusion from stable-v4.19.199 commit 9619cc7d97c3aa8ed3cfd2b8678b74fb6d6c7950 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4JQ CVE: CVE-2021-47294 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 517a16b1a88bdb6b530f48d5d153478b2552d9a8 ] Commit 63346650c1a9 ("netrom: switch to sock timer API") switched to use sock timer API. It replaces mod_timer() by sk_reset_timer(), and del_timer() by sk_stop_timer(). Function sk_reset_timer() will increase the refcount of sock if it is called on an inactive timer, hence, in case the timer expires, we need to decrease the refcount ourselves in the handler, otherwise, the sock refcount will be unbalanced and the sock will never be freed. Signed-off-by: Nguyen Dinh Phi <phind.uet(a)gmail.com> Reported-by: syzbot+10f1194569953b72f1ae(a)syzkaller.appspotmail.com Fixes: 63346650c1a9 ("netrom: switch to sock timer API") Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- net/netrom/nr_timer.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/net/netrom/nr_timer.c b/net/netrom/nr_timer.c index 908e53ab47a4..426d49609524 100644 --- a/net/netrom/nr_timer.c +++ b/net/netrom/nr_timer.c @@ -124,11 +124,9 @@ static void nr_heartbeat_expiry(struct timer_list *t) is accepted() it isn't 'dead' so doesn't get removed. */ if (sock_flag(sk, SOCK_DESTROY) || (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) { - sock_hold(sk); bh_unlock_sock(sk); nr_destroy_socket(sk); - sock_put(sk); - return; + goto out; } break; @@ -149,6 +147,8 @@ static void nr_heartbeat_expiry(struct timer_list *t) nr_start_heartbeat(sk); bh_unlock_sock(sk); +out: + sock_put(sk); } static void nr_t2timer_expiry(struct timer_list *t) @@ -162,6 +162,7 @@ static void nr_t2timer_expiry(struct timer_list *t) nr_enquiry_response(sk); } bh_unlock_sock(sk); + sock_put(sk); } static void nr_t4timer_expiry(struct timer_list *t) @@ -172,6 +173,7 @@ static void nr_t4timer_expiry(struct timer_list *t) bh_lock_sock(sk); nr_sk(sk)->condition &= ~NR_COND_PEER_RX_BUSY; bh_unlock_sock(sk); + sock_put(sk); } static void nr_idletimer_expiry(struct timer_list *t) @@ -200,6 +202,7 @@ static void nr_idletimer_expiry(struct timer_list *t) sock_set_flag(sk, SOCK_DEAD); } bh_unlock_sock(sk); + sock_put(sk); } static void nr_t1timer_expiry(struct timer_list *t) @@ -212,8 +215,7 @@ static void nr_t1timer_expiry(struct timer_list *t) case NR_STATE_1: if (nr->n2count == nr->n2) { nr_disconnect(sk, ETIMEDOUT); - bh_unlock_sock(sk); - return; + goto out; } else { nr->n2count++; nr_write_internal(sk, NR_CONNREQ); @@ -223,8 +225,7 @@ static void nr_t1timer_expiry(struct timer_list *t) case NR_STATE_2: if (nr->n2count == nr->n2) { nr_disconnect(sk, ETIMEDOUT); - bh_unlock_sock(sk); - return; + goto out; } else { nr->n2count++; nr_write_internal(sk, NR_DISCREQ); @@ -234,8 +235,7 @@ static void nr_t1timer_expiry(struct timer_list *t) case NR_STATE_3: if (nr->n2count == nr->n2) { nr_disconnect(sk, ETIMEDOUT); - bh_unlock_sock(sk); - return; + goto out; } else { nr->n2count++; nr_requeue_frames(sk); @@ -244,5 +244,7 @@ static void nr_t1timer_expiry(struct timer_list *t) } nr_start_t1timer(sk); +out: bh_unlock_sock(sk); + sock_put(sk); } -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS v2 0/7] arm64 mpam fix patch
by Yu Liao 06 Jun '24

06 Jun '24

Some bugfix patches to address mpam issues. Yu Liao (7): mpam/resctrl: Fix a deadlock due to inaccurate reference mpam/resctrl: Clean up unused function parameter in mkdir path mpam/resctrl: Clean up resctrl_group_rmdir_[ctrl/mon]() mpam/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup arm64/mpam: change allocation mode from GFP_KERNEL to GFP_NOWAIT arm64/mpam: Fix wrong seconds to jiffies conversion arm64/mpam: Fix softlockup when reading mondata arch/arm64/kernel/mpam/mpam_ctrlmon.c | 3 ++ arch/arm64/kernel/mpam/mpam_resctrl.c | 6 +-- fs/resctrlfs.c | 57 ++++++++++----------------- 3 files changed, 27 insertions(+), 39 deletions(-) -- 2.33.0

2 8

[PATCH openEuler-22.03-LTS-SP1] smb: client: fix UAF in smb2_reconnect_server()
by Long Li 06 Jun '24

06 Jun '24

From: Paulo Alcantara <pc(a)manguebit.com> mainline inclusion from mainline-v6.9-rc2 commit 24a9799aa8efecd0eb55a75e35f9d8e6400063aa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG1A CVE: CVE-2024-35870 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The UAF bug is due to smb2_reconnect_server() accessing a session that is already being teared down by another thread that is executing __cifs_put_smb_ses(). This can happen when (a) the client has connection to the server but no session or (b) another thread ends up setting @ses->ses_status again to something different than SES_EXITING. To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down. The following can be reproduced by adding some delay to right after the ipc is freed in __cifs_put_smb_ses() - which will give smb2_reconnect_server() worker a chance to run and then accessing @ses->ipc: kinit ... mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10 [disconnect srv] ls /mnt/1 &>/dev/null sleep 30 kdestroy [reconnect srv] sleep 10 umount /mnt/1 ... CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014 Workqueue: cifsiod smb2_reconnect_server [cifs] RIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0 Code: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 ad de 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 <48> 8b 01 48 39 f8 75 7b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8 RSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83 RAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6b RDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800 RBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000 R13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000 FS: 0000000000000000(0000) GS:ffff888157c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? die_addr+0x36/0x90 ? exc_general_protection+0x1c1/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? __list_del_entry_valid_or_report+0x33/0xf0 __cifs_put_smb_ses+0x1ae/0x500 [cifs] smb2_reconnect_server+0x4ed/0x710 [cifs] process_one_work+0x205/0x6b0 worker_thread+0x191/0x360 ? __pfx_worker_thread+0x10/0x10 kthread+0xe2/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Cc: stable(a)vger.kernel.org Signed-off-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> Conflicts: fs/cifs/connect.c fs/smb/client/connect.c [Path is changed and related functions has been refactored for a long time] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/cifs/connect.c | 48 ++++++++++++++++++----------------------------- 1 file changed, 18 insertions(+), 30 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 5cf5b58b9b66..0290c573db89 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -455,6 +455,8 @@ cifs_reconnect(struct TCP_Server_Info *server) spin_lock(&cifs_tcp_ses_lock); list_for_each(tmp, &server->smb_ses_list) { ses = list_entry(tmp, struct cifs_ses, smb_ses_list); + if (ses->status == CifsExiting) + continue; ses->need_reconnect = true; list_for_each(tmp2, &ses->tcon_list) { tcon = list_entry(tmp2, struct cifs_tcon, tcon_list); @@ -2814,34 +2816,6 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info) return rc; } -/** - * cifs_free_ipc - helper to release the session IPC tcon - * - * Needs to be called everytime a session is destroyed - */ -static int -cifs_free_ipc(struct cifs_ses *ses) -{ - int rc = 0, xid; - struct cifs_tcon *tcon = ses->tcon_ipc; - - if (tcon == NULL) - return 0; - - if (ses->server->ops->tree_disconnect) { - xid = get_xid(); - rc = ses->server->ops->tree_disconnect(xid, tcon); - free_xid(xid); - } - - if (rc) - cifs_dbg(FYI, "failed to disconnect IPC tcon (rc=%d)\n", rc); - - tconInfoFree(tcon); - ses->tcon_ipc = NULL; - return rc; -} - static struct cifs_ses * cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol) { @@ -2863,8 +2837,9 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol) void cifs_put_smb_ses(struct cifs_ses *ses) { - unsigned int rc, xid; + unsigned int rc = 0, xid; struct TCP_Server_Info *server = ses->server; + struct cifs_tcon *tcon = NULL; cifs_dbg(FYI, "%s: ses_count=%d\n", __func__, ses->ses_count); @@ -2881,10 +2856,23 @@ void cifs_put_smb_ses(struct cifs_ses *ses) spin_lock(&GlobalMid_Lock); if (ses->status == CifsGood) ses->status = CifsExiting; + tcon = ses->tcon_ipc; + ses->tcon_ipc = NULL; spin_unlock(&GlobalMid_Lock); spin_unlock(&cifs_tcp_ses_lock); - cifs_free_ipc(ses); + if (tcon) { + if (ses->server->ops->tree_disconnect) { + xid = get_xid(); + rc = ses->server->ops->tree_disconnect(xid, tcon); + free_xid(xid); + } + + if (rc) + cifs_dbg(FYI, "failed to disconnect IPC tcon (rc=%d)\n", rc); + + tconInfoFree(tcon); + } if (ses->status == CifsExiting && server->ops->logoff) { xid = get_xid(); -- 2.39.2

2 1

[PATCH OLK-5.10] smb: client: fix UAF in smb2_reconnect_server()
by Long Li 06 Jun '24

06 Jun '24

From: Paulo Alcantara <pc(a)manguebit.com> mainline inclusion from mainline-v6.9-rc2 commit 24a9799aa8efecd0eb55a75e35f9d8e6400063aa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QG1A CVE: CVE-2024-35870 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The UAF bug is due to smb2_reconnect_server() accessing a session that is already being teared down by another thread that is executing __cifs_put_smb_ses(). This can happen when (a) the client has connection to the server but no session or (b) another thread ends up setting @ses->ses_status again to something different than SES_EXITING. To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down. The following can be reproduced by adding some delay to right after the ipc is freed in __cifs_put_smb_ses() - which will give smb2_reconnect_server() worker a chance to run and then accessing @ses->ipc: kinit ... mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10 [disconnect srv] ls /mnt/1 &>/dev/null sleep 30 kdestroy [reconnect srv] sleep 10 umount /mnt/1 ... CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014 Workqueue: cifsiod smb2_reconnect_server [cifs] RIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0 Code: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 ad de 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 <48> 8b 01 48 39 f8 75 7b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8 RSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83 RAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6b RDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800 RBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000 R13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000 FS: 0000000000000000(0000) GS:ffff888157c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? die_addr+0x36/0x90 ? exc_general_protection+0x1c1/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? __list_del_entry_valid_or_report+0x33/0xf0 __cifs_put_smb_ses+0x1ae/0x500 [cifs] smb2_reconnect_server+0x4ed/0x710 [cifs] process_one_work+0x205/0x6b0 worker_thread+0x191/0x360 ? __pfx_worker_thread+0x10/0x10 kthread+0xe2/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Cc: stable(a)vger.kernel.org Signed-off-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> Conflicts: fs/cifs/connect.c fs/smb/client/connect.c [Path is changed and related functions has been refactored for a long time] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/cifs/connect.c | 48 ++++++++++++++++++----------------------------- 1 file changed, 18 insertions(+), 30 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index f6a7e25ce234..5a688129b5ca 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -455,6 +455,8 @@ cifs_reconnect(struct TCP_Server_Info *server) spin_lock(&cifs_tcp_ses_lock); list_for_each(tmp, &server->smb_ses_list) { ses = list_entry(tmp, struct cifs_ses, smb_ses_list); + if (ses->status == CifsExiting) + continue; ses->need_reconnect = true; list_for_each(tmp2, &ses->tcon_list) { tcon = list_entry(tmp2, struct cifs_tcon, tcon_list); @@ -2814,34 +2816,6 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info) return rc; } -/** - * cifs_free_ipc - helper to release the session IPC tcon - * - * Needs to be called everytime a session is destroyed - */ -static int -cifs_free_ipc(struct cifs_ses *ses) -{ - int rc = 0, xid; - struct cifs_tcon *tcon = ses->tcon_ipc; - - if (tcon == NULL) - return 0; - - if (ses->server->ops->tree_disconnect) { - xid = get_xid(); - rc = ses->server->ops->tree_disconnect(xid, tcon); - free_xid(xid); - } - - if (rc) - cifs_dbg(FYI, "failed to disconnect IPC tcon (rc=%d)\n", rc); - - tconInfoFree(tcon); - ses->tcon_ipc = NULL; - return rc; -} - static struct cifs_ses * cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol) { @@ -2863,8 +2837,9 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol) void cifs_put_smb_ses(struct cifs_ses *ses) { - unsigned int rc, xid; + unsigned int rc = 0, xid; struct TCP_Server_Info *server = ses->server; + struct cifs_tcon *tcon = NULL; cifs_dbg(FYI, "%s: ses_count=%d\n", __func__, ses->ses_count); @@ -2881,10 +2856,23 @@ void cifs_put_smb_ses(struct cifs_ses *ses) spin_lock(&GlobalMid_Lock); if (ses->status == CifsGood) ses->status = CifsExiting; + tcon = ses->tcon_ipc; + ses->tcon_ipc = NULL; spin_unlock(&GlobalMid_Lock); spin_unlock(&cifs_tcp_ses_lock); - cifs_free_ipc(ses); + if (tcon) { + if (ses->server->ops->tree_disconnect) { + xid = get_xid(); + rc = ses->server->ops->tree_disconnect(xid, tcon); + free_xid(xid); + } + + if (rc) + cifs_dbg(FYI, "failed to disconnect IPC tcon (rc=%d)\n", rc); + + tconInfoFree(tcon); + } if (ses->status == CifsExiting && server->ops->logoff) { xid = get_xid(); -- 2.39.2

2 1

[PATCH openEuler-1.0-LTS] btrfs: fix deadlock with fiemap and extent locking
by Zizhi Wo 06 Jun '24

06 Jun '24

From: Josef Bacik <josef(a)toxicpanda.com> stable inclusion from stable-v6.6.24 commit ded566b4637f1b6b4c9ba74e7d0b8493e93f19cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8ZZ CVE: CVE-2024-35784 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit b0ad381fa7690244802aed119b478b4bdafc31dd upstream. While working on the patchset to remove extent locking I got a lockdep splat with fiemap and pagefaulting with my new extent lock replacement lock. This deadlock exists with our normal code, we just don't have lockdep annotations with the extent locking so we've never noticed it. Since we're copying the fiemap extent to user space on every iteration we have the chance of pagefaulting. Because we hold the extent lock for the entire range we could mkwrite into a range in the file that we have mmap'ed. This would deadlock with the following stack trace [<0>] lock_extent+0x28d/0x2f0 [<0>] btrfs_page_mkwrite+0x273/0x8a0 [<0>] do_page_mkwrite+0x50/0xb0 [<0>] do_fault+0xc1/0x7b0 [<0>] __handle_mm_fault+0x2fa/0x460 [<0>] handle_mm_fault+0xa4/0x330 [<0>] do_user_addr_fault+0x1f4/0x800 [<0>] exc_page_fault+0x7c/0x1e0 [<0>] asm_exc_page_fault+0x26/0x30 [<0>] rep_movs_alternative+0x33/0x70 [<0>] _copy_to_user+0x49/0x70 [<0>] fiemap_fill_next_extent+0xc8/0x120 [<0>] emit_fiemap_extent+0x4d/0xa0 [<0>] extent_fiemap+0x7f8/0xad0 [<0>] btrfs_fiemap+0x49/0x80 [<0>] __x64_sys_ioctl+0x3e1/0xb50 [<0>] do_syscall_64+0x94/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 I wrote an fstest to reproduce this deadlock without my replacement lock and verified that the deadlock exists with our existing locking. To fix this simply don't take the extent lock for the entire duration of the fiemap. This is safe in general because we keep track of where we are when we're searching the tree, so if an ordered extent updates in the middle of our fiemap call we'll still emit the correct extents because we know what offset we were on before. The only place we maintain the lock is searching delalloc. Since the delalloc stuff can change during writeback we want to lock the extent range so we have a consistent view of delalloc at the time we're checking to see if we need to set the delalloc flag. With this patch applied we no longer deadlock with my testcase. CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Filipe Manana <fdmanana(a)suse.com> Signed-off-by: Josef Bacik <josef(a)toxicpanda.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: fs/btrfs/extent_io.c [The key to fixing the patch is the fiemap_process_hole function, which locks only before querying delalloc. Earlier versions do not have this function, and adaptation requires a lot of refactoring patches. So do something similar directly in the get_extent_skip_holes function, which contains the logic to query delalloc.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/btrfs/extent_io.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index b20021c501d7..7d608dbae970 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4332,12 +4332,31 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode, return NULL; while (1) { + struct extent_state *cached_state = NULL; + u64 lockstart; + u64 lockend; + len = last - offset; if (len == 0) break; len = ALIGN(len, sectorsize); + lockstart = round_down(offset, sectorsize); + lockend = round_up(offset + len, sectorsize) - 1; + + /* + * We are only locking for the delalloc range because that's the + * only thing that can change here. With fiemap we have a lock + * on the inode, so no buffered or direct writes can happen. + * + * However mmaps and normal page writeback will cause this to + * change arbitrarily. We have to lock the extent lock here to + * make sure that nobody messes with the tree while we're doing + * btrfs_find_delalloc_in_range. + */ + lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state); em = btrfs_get_extent_fiemap(BTRFS_I(inode), NULL, 0, offset, len, 0); + unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state); if (IS_ERR_OR_NULL(em)) return em; @@ -4481,7 +4500,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 isize = i_size_read(inode); struct btrfs_key found_key; struct extent_map *em = NULL; - struct extent_state *cached_state = NULL; struct btrfs_path *path; struct btrfs_root *root = BTRFS_I(inode)->root; struct fiemap_cache cache = { 0 }; @@ -4547,9 +4565,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, last_for_get_extent = isize; } - lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len - 1, - &cached_state); - em = get_extent_skip_holes(inode, start, last_for_get_extent); if (!em) goto out; @@ -4662,8 +4677,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, free_extent_map(em); out: btrfs_free_path(path); - unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1, - &cached_state); return ret; } -- 2.39.2

2 1

[PATCH openEuler-1.0-LTS] memory: fsl_ifc: fix leak of IO mapping on probe failure
by Tong Tiangen 06 Jun '24

06 Jun '24

From: Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> stable inclusion from stable-v4.19.198 commit 94bc2fe46102d1e060fc749c0c19511e76c9995f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RKXC CVE: CVE-2021-47315 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 3b132ab67fc7a358fff35e808fa65d4bea452521 ] On probe error the driver should unmap the IO memory. Smatch reports: drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298. Fixes: a20cbdeffce2 ("powerpc/fsl: Add support for Integrated Flash Controller") Reported-by: kernel test robot <lkp(a)intel.com> Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> Link: https://lore.kernel.org/r/20210527154322.81253-1-krzysztof.kozlowski@canoni… Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- drivers/memory/fsl_ifc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/memory/fsl_ifc.c b/drivers/memory/fsl_ifc.c index 1272e8886a42..38b945eb410f 100644 --- a/drivers/memory/fsl_ifc.c +++ b/drivers/memory/fsl_ifc.c @@ -231,8 +231,7 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev) fsl_ifc_ctrl_dev->gregs = of_iomap(dev->dev.of_node, 0); if (!fsl_ifc_ctrl_dev->gregs) { dev_err(&dev->dev, "failed to get memory region\n"); - ret = -ENODEV; - goto err; + return -ENODEV; } if (of_property_read_bool(dev->dev.of_node, "little-endian")) { @@ -308,6 +307,7 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev) free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev); irq_dispose_mapping(fsl_ifc_ctrl_dev->irq); err: + iounmap(fsl_ifc_ctrl_dev->gregs); return ret; } -- 2.25.1

2 1

[PATCH OLK-5.10] btrfs: fix deadlock with fiemap and extent locking
by Zizhi Wo 06 Jun '24

06 Jun '24

From: Josef Bacik <josef(a)toxicpanda.com> stable inclusion from stable-v6.6.24 commit ded566b4637f1b6b4c9ba74e7d0b8493e93f19cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8ZZ CVE: CVE-2024-35784 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit b0ad381fa7690244802aed119b478b4bdafc31dd upstream. While working on the patchset to remove extent locking I got a lockdep splat with fiemap and pagefaulting with my new extent lock replacement lock. This deadlock exists with our normal code, we just don't have lockdep annotations with the extent locking so we've never noticed it. Since we're copying the fiemap extent to user space on every iteration we have the chance of pagefaulting. Because we hold the extent lock for the entire range we could mkwrite into a range in the file that we have mmap'ed. This would deadlock with the following stack trace [<0>] lock_extent+0x28d/0x2f0 [<0>] btrfs_page_mkwrite+0x273/0x8a0 [<0>] do_page_mkwrite+0x50/0xb0 [<0>] do_fault+0xc1/0x7b0 [<0>] __handle_mm_fault+0x2fa/0x460 [<0>] handle_mm_fault+0xa4/0x330 [<0>] do_user_addr_fault+0x1f4/0x800 [<0>] exc_page_fault+0x7c/0x1e0 [<0>] asm_exc_page_fault+0x26/0x30 [<0>] rep_movs_alternative+0x33/0x70 [<0>] _copy_to_user+0x49/0x70 [<0>] fiemap_fill_next_extent+0xc8/0x120 [<0>] emit_fiemap_extent+0x4d/0xa0 [<0>] extent_fiemap+0x7f8/0xad0 [<0>] btrfs_fiemap+0x49/0x80 [<0>] __x64_sys_ioctl+0x3e1/0xb50 [<0>] do_syscall_64+0x94/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 I wrote an fstest to reproduce this deadlock without my replacement lock and verified that the deadlock exists with our existing locking. To fix this simply don't take the extent lock for the entire duration of the fiemap. This is safe in general because we keep track of where we are when we're searching the tree, so if an ordered extent updates in the middle of our fiemap call we'll still emit the correct extents because we know what offset we were on before. The only place we maintain the lock is searching delalloc. Since the delalloc stuff can change during writeback we want to lock the extent range so we have a consistent view of delalloc at the time we're checking to see if we need to set the delalloc flag. With this patch applied we no longer deadlock with my testcase. CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Filipe Manana <fdmanana(a)suse.com> Signed-off-by: Josef Bacik <josef(a)toxicpanda.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: fs/btrfs/extent_io.c [The key to fixing the patch is the fiemap_process_hole function, which locks only before querying delalloc. Earlier versions do not have this function, and adaptation requires a lot of refactoring patches. So do something similar directly in the get_extent_skip_holes function, which contains the logic to query delalloc.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/btrfs/extent_io.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 685a375bb6af..e8ae864a0337 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4532,11 +4532,30 @@ static struct extent_map *get_extent_skip_holes(struct btrfs_inode *inode, return NULL; while (1) { + struct extent_state *cached_state = NULL; + u64 lockstart; + u64 lockend; + len = last - offset; if (len == 0) break; len = ALIGN(len, sectorsize); + lockstart = round_down(offset, sectorsize); + lockend = round_up(offset + len, sectorsize) - 1; + + /* + * We are only locking for the delalloc range because that's the + * only thing that can change here. With fiemap we have a lock + * on the inode, so no buffered or direct writes can happen. + * + * However mmaps and normal page writeback will cause this to + * change arbitrarily. We have to lock the extent lock here to + * make sure that nobody messes with the tree while we're doing + * btrfs_find_delalloc_in_range. + */ + lock_extent_bits(&inode->io_tree, lockstart, lockend, &cached_state); em = btrfs_get_extent_fiemap(inode, offset, len); + unlock_extent_cached(&inode->io_tree, lockstart, lockend, &cached_state); if (IS_ERR_OR_NULL(em)) return em; @@ -4679,7 +4698,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, u64 isize = i_size_read(&inode->vfs_inode); struct btrfs_key found_key; struct extent_map *em = NULL; - struct extent_state *cached_state = NULL; struct btrfs_path *path; struct btrfs_root *root = inode->root; struct fiemap_cache cache = { 0 }; @@ -4758,9 +4776,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, last_for_get_extent = isize; } - lock_extent_bits(&inode->io_tree, start, start + len - 1, - &cached_state); - em = get_extent_skip_holes(inode, start, last_for_get_extent); if (!em) goto out; @@ -4871,9 +4886,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, ret = emit_last_fiemap_cache(fieinfo, &cache); free_extent_map(em); out: - unlock_extent_cached(&inode->io_tree, start, start + len - 1, - &cached_state); - out_free_ulist: btrfs_free_path(path); ulist_free(roots); -- 2.39.2

2 1

[PATCH openEuler-1.0-LTS] llc: verify mac len before reading mac header
by Dong Chenchen 06 Jun '24

06 Jun '24

From: Willem de Bruijn <willemb(a)google.com> mainline inclusion from mainline-v6.7-rc1 commit 7b3ba18703a63f6fd487183b9262b08e5632da1b category: bugfix bugzilla: 189991, https://gitee.com/src-openeuler/kernel/issues/I9RG0B CVE: CVE-2023-52843 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- LLC reads the mac header with eth_hdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llc_rcv on a tun device. Tun can insert packets without mac len and with user configurable skb->protocol (passing a tun_pi header when not configuring IFF_NO_PI). BUG: KMSAN: uninit-value in llc_station_ac_send_test_r net/llc/llc_station.c:81 [inline] BUG: KMSAN: uninit-value in llc_station_rcv+0x6fb/0x1290 net/llc/llc_station.c:111 llc_station_ac_send_test_r net/llc/llc_station.c:81 [inline] llc_station_rcv+0x6fb/0x1290 net/llc/llc_station.c:111 llc_rcv+0xc5d/0x14a0 net/llc/llc_input.c:218 __netif_receive_skb_one_core net/core/dev.c:5523 [inline] __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5637 netif_receive_skb_internal net/core/dev.c:5723 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5782 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1555 tun_get_user+0x54c5/0x69c0 drivers/net/tun.c:2002 Add a mac_len test before all three eth_hdr(skb) calls under net/llc. There are further uses in include/net/llc_pdu.h. All these are protected by a test skb->protocol == ETH_P_802_2. Which does not protect against this tun scenario. But the mac_len test added in this patch in llc_fixup_skb will indirectly protect those too. That is called from llc_rcv before any other LLC code. It is tempting to just add a blanket mac_len check in llc_rcv, but not sure whether that could break valid LLC paths that do not assume an Ethernet header. 802.2 LLC may be used on top of non-802.3 protocols in principle. The below referenced commit shows that used to, on top of Token Ring. At least one of the three eth_hdr uses goes back to before the start of git history. But the one that syzbot exercises is introduced in this commit. That commit is old enough (2008), that effectively all stable kernels should receive this. Fixes: f83f1768f833 ("[LLC]: skb allocation size for responses") Reported-by: syzbot+a8c7be6dee0de1b669cc(a)syzkaller.appspotmail.com Signed-off-by: Willem de Bruijn <willemb(a)google.com> Link: https://lore.kernel.org/r/20231025234251.3796495-1-willemdebruijn.kernel@gm… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/llc/llc_input.c | 10 ++++++++-- net/llc/llc_s_ac.c | 3 +++ net/llc/llc_station.c | 3 +++ 3 files changed, 14 insertions(+), 2 deletions(-) diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index 82cb93f66b9b..de5023b9607c 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -127,8 +127,14 @@ static inline int llc_fixup_skb(struct sk_buff *skb) skb->transport_header += llc_len; skb_pull(skb, llc_len); if (skb->protocol == htons(ETH_P_802_2)) { - __be16 pdulen = eth_hdr(skb)->h_proto; - s32 data_size = ntohs(pdulen) - llc_len; + __be16 pdulen; + s32 data_size; + + if (skb->mac_len < ETH_HLEN) + return 0; + + pdulen = eth_hdr(skb)->h_proto; + data_size = ntohs(pdulen) - llc_len; if (data_size < 0 || !pskb_may_pull(skb, data_size)) diff --git a/net/llc/llc_s_ac.c b/net/llc/llc_s_ac.c index 7ae4cc684d3a..4cf636bb7850 100644 --- a/net/llc/llc_s_ac.c +++ b/net/llc/llc_s_ac.c @@ -153,6 +153,9 @@ int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) int rc = 1; u32 data_size; + if (skb->mac_len < ETH_HLEN) + return 1; + llc_pdu_decode_sa(skb, mac_da); llc_pdu_decode_da(skb, mac_sa); llc_pdu_decode_ssap(skb, &dsap); diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c index c29170e767a8..64e2c67e16ba 100644 --- a/net/llc/llc_station.c +++ b/net/llc/llc_station.c @@ -77,6 +77,9 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb) u32 data_size; struct sk_buff *nskb; + if (skb->mac_len < ETH_HLEN) + goto out; + /* The test request command is type U (llc_len = 3) */ data_size = ntohs(eth_hdr(skb)->h_proto) - 3; nskb = llc_alloc_frame(NULL, skb->dev, LLC_PDU_TYPE_U, data_size); -- 2.25.1

2 1

[PATCH OLK-5.10 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++ 1 file changed, 6 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] sched: remove WARN_ON on checking rq->tmp_alone_branch
by Hui Tang 06 Jun '24

06 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPMT --------------------------- Remove warn printk for checking 'rq->tmp_alone_branch != &rq->leaf_cfs_rq_list' to avoid rq deadlock. Deadlock analaze: cpu 0 distribute_cfs_runtime --- rq_lock_irqsave(rq, &rf); ->__warn_printk ->try_to_wake_up --- rq_lock(rq, &rf), deadlock Call Trace: queued_spin_lock_slowpath at ffff000080173358 try_to_wake_up at ffff000080141068 wake_up_process at ffff00008014113c insert_work at ffff000080123750 __queue_work at ffff0000801257ac queue_work_on at ffff000080125c54 drm_fb_helper_dirty at ffff0000806dcd44 drm_fb_helper_sys_imageblit at ffff0000806dcf04 virtio_gpu_3d_imageblit at ffff000000c915d0 [virtio_gpu] soft_cursor at ffff0000805e3e04 bit_cursor at ffff0000805e3654 fbcon_cursor at ffff0000805df404 hide_cursor at ffff000080677d68 vt_console_print at ffff0000806799dc console_unlock at ffff000080183d78 vprintk_emit at ffff000080185948 vprintk_default at ffff000080185b80 vprintk_func at ffff000080186c44 printk at ffff000080186394 __warn_printk at ffff000080102d60 unthrottle_cfs_rq at ffff000080155e50 distribute_cfs_runtime at ffff00008015617c sched_cfs_period_timer at ffff00008015654c __hrtimer_run_queues at ffff0000801b2c58 hrtimer_interrupt at ffff0000801b3c74 arch_timer_handler_virt at ffff00008089dc3c handle_percpu_devid_irq at ffff00008018fb3c generic_handle_irq at ffff000080187140 __handle_domain_irq at ffff000080187adc gic_handle_irq at ffff000080081814 Fixes: 6e9efc5d870d ("sched/fair: Add tmp_alone_branch assertion") Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/fair.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3bd5aa6dedb3..aee13d30a7de 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -393,9 +393,12 @@ static inline void list_del_leaf_cfs_rq(struct cfs_rq *cfs_rq) } } +/* + * There are possible rq deadlock when warn is triggered, + * since try_to_wake_up may called by __warn_printk. + */ static inline void assert_list_leaf_cfs_rq(struct rq *rq) { - SCHED_WARN_ON(rq->tmp_alone_branch != &rq->leaf_cfs_rq_list); } /* Iterate thr' all leaf cfs_rq's on a runqueue */ -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] sched: remove WARN_ON on checking rq->tmp_alone_branch
by Hui Tang 06 Jun '24

06 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPMT --------------------------- Remove warn printk for checking 'rq->tmp_alone_branch != &rq->leaf_cfs_rq_list' to avoid rq deadlock. Deadlock analaze: cpu 0 distribute_cfs_runtime --- rq_lock_irqsave(rq, &rf); ->__warn_printk ->try_to_wake_up --- rq_lock(rq, &rf), deadlock Call Trace: queued_spin_lock_slowpath at ffff000080173358 try_to_wake_up at ffff000080141068 wake_up_process at ffff00008014113c insert_work at ffff000080123750 __queue_work at ffff0000801257ac queue_work_on at ffff000080125c54 drm_fb_helper_dirty at ffff0000806dcd44 drm_fb_helper_sys_imageblit at ffff0000806dcf04 virtio_gpu_3d_imageblit at ffff000000c915d0 [virtio_gpu] soft_cursor at ffff0000805e3e04 bit_cursor at ffff0000805e3654 fbcon_cursor at ffff0000805df404 hide_cursor at ffff000080677d68 vt_console_print at ffff0000806799dc console_unlock at ffff000080183d78 vprintk_emit at ffff000080185948 vprintk_default at ffff000080185b80 vprintk_func at ffff000080186c44 printk at ffff000080186394 __warn_printk at ffff000080102d60 unthrottle_cfs_rq at ffff000080155e50 distribute_cfs_runtime at ffff00008015617c sched_cfs_period_timer at ffff00008015654c __hrtimer_run_queues at ffff0000801b2c58 hrtimer_interrupt at ffff0000801b3c74 arch_timer_handler_virt at ffff00008089dc3c handle_percpu_devid_irq at ffff00008018fb3c generic_handle_irq at ffff000080187140 __handle_domain_irq at ffff000080187adc gic_handle_irq at ffff000080081814 Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/fair.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3bd5aa6dedb3..aee13d30a7de 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -393,9 +393,12 @@ static inline void list_del_leaf_cfs_rq(struct cfs_rq *cfs_rq) } } +/* + * There are possible rq deadlock when warn is triggered, + * since try_to_wake_up may called by __warn_printk. + */ static inline void assert_list_leaf_cfs_rq(struct rq *rq) { - SCHED_WARN_ON(rq->tmp_alone_branch != &rq->leaf_cfs_rq_list); } /* Iterate thr' all leaf cfs_rq's on a runqueue */ -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] btrfs: fix deadlock with fiemap and extent locking
by Zizhi Wo 06 Jun '24

06 Jun '24

From: Josef Bacik <josef(a)toxicpanda.com> stable inclusion from stable-v6.6.24 commit ded566b4637f1b6b4c9ba74e7d0b8493e93f19cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8ZZ CVE: CVE-2024-35784 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit b0ad381fa7690244802aed119b478b4bdafc31dd upstream. While working on the patchset to remove extent locking I got a lockdep splat with fiemap and pagefaulting with my new extent lock replacement lock. This deadlock exists with our normal code, we just don't have lockdep annotations with the extent locking so we've never noticed it. Since we're copying the fiemap extent to user space on every iteration we have the chance of pagefaulting. Because we hold the extent lock for the entire range we could mkwrite into a range in the file that we have mmap'ed. This would deadlock with the following stack trace [<0>] lock_extent+0x28d/0x2f0 [<0>] btrfs_page_mkwrite+0x273/0x8a0 [<0>] do_page_mkwrite+0x50/0xb0 [<0>] do_fault+0xc1/0x7b0 [<0>] __handle_mm_fault+0x2fa/0x460 [<0>] handle_mm_fault+0xa4/0x330 [<0>] do_user_addr_fault+0x1f4/0x800 [<0>] exc_page_fault+0x7c/0x1e0 [<0>] asm_exc_page_fault+0x26/0x30 [<0>] rep_movs_alternative+0x33/0x70 [<0>] _copy_to_user+0x49/0x70 [<0>] fiemap_fill_next_extent+0xc8/0x120 [<0>] emit_fiemap_extent+0x4d/0xa0 [<0>] extent_fiemap+0x7f8/0xad0 [<0>] btrfs_fiemap+0x49/0x80 [<0>] __x64_sys_ioctl+0x3e1/0xb50 [<0>] do_syscall_64+0x94/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 I wrote an fstest to reproduce this deadlock without my replacement lock and verified that the deadlock exists with our existing locking. To fix this simply don't take the extent lock for the entire duration of the fiemap. This is safe in general because we keep track of where we are when we're searching the tree, so if an ordered extent updates in the middle of our fiemap call we'll still emit the correct extents because we know what offset we were on before. The only place we maintain the lock is searching delalloc. Since the delalloc stuff can change during writeback we want to lock the extent range so we have a consistent view of delalloc at the time we're checking to see if we need to set the delalloc flag. With this patch applied we no longer deadlock with my testcase. CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Filipe Manana <fdmanana(a)suse.com> Signed-off-by: Josef Bacik <josef(a)toxicpanda.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: fs/btrfs/extent_io.c [The key to fixing the patch is the fiemap_process_hole function, which locks only before querying delalloc. Earlier versions do not have this function, and adaptation requires a lot of refactoring patches. So do something similar directly in the get_extent_skip_holes function, which contains the logic to query delalloc.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/btrfs/extent_io.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index b20021c501d7..8aa7738d9aad 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4332,12 +4332,31 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode, return NULL; while (1) { + struct extent_state *cached_state = NULL; + u64 lockstart; + u64 lockend; + len = last - offset; if (len == 0) break; len = ALIGN(len, sectorsize); + lockstart = round_down(offset, sectorsize); + lockend = round_up(offset + len, sectorsize); + + /* + * We are only locking for the delalloc range because that's the + * only thing that can change here. With fiemap we have a lock + * on the inode, so no buffered or direct writes can happen. + * + * However mmaps and normal page writeback will cause this to + * change arbitrarily. We have to lock the extent lock here to + * make sure that nobody messes with the tree while we're doing + * btrfs_find_delalloc_in_range. + */ + lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state); em = btrfs_get_extent_fiemap(BTRFS_I(inode), NULL, 0, offset, len, 0); + unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state); if (IS_ERR_OR_NULL(em)) return em; @@ -4481,7 +4500,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 isize = i_size_read(inode); struct btrfs_key found_key; struct extent_map *em = NULL; - struct extent_state *cached_state = NULL; struct btrfs_path *path; struct btrfs_root *root = BTRFS_I(inode)->root; struct fiemap_cache cache = { 0 }; @@ -4547,9 +4565,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, last_for_get_extent = isize; } - lock_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len - 1, - &cached_state); - em = get_extent_skip_holes(inode, start, last_for_get_extent); if (!em) goto out; @@ -4662,8 +4677,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, free_extent_map(em); out: btrfs_free_path(path); - unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1, - &cached_state); return ret; } -- 2.39.2

2 1

[PATCH openEuler-1.0-LTS] atl1c: Work around the DMA RX overflow issue
by Dong Chenchen 06 Jun '24

06 Jun '24

From: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> mainline inclusion from mainline-v6.7-rc1 commit 86565682e9053e5deb128193ea9e88531bbae9cf category: bugfix bugzilla: 190056, https://gitee.com/src-openeuler/kernel/issues/I9REDN CVE: CVE-2023-52834 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540. Signed-off-by: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> Link: https://lore.kernel.org/r/20230912010711.12036-1-liew.s.piaw@gmail.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Conflicts: drivers/net/ethernet/atheros/atl1c/atl1c.h drivers/net/ethernet/atheros/atl1c/atl1c_main.c [commit 8042824a3c0b and 057f4af2b171 support multiple rx queues for atk1c driver, which lead to context conflicts. commit a9d6df642dc8 use napi_alloc_skb() to optimize performance in NAPI context, which not merged] Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- drivers/net/ethernet/atheros/atl1c/atl1c.h | 1 - .../net/ethernet/atheros/atl1c/atl1c_main.c | 52 +++++-------------- 2 files changed, 12 insertions(+), 41 deletions(-) diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c.h b/drivers/net/ethernet/atheros/atl1c/atl1c.h index c46b489ce9b4..86660a3cae49 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c.h +++ b/drivers/net/ethernet/atheros/atl1c/atl1c.h @@ -521,7 +521,6 @@ struct atl1c_adapter { struct napi_struct napi; struct page *rx_page; unsigned int rx_page_offset; - unsigned int rx_frag_size; struct atl1c_hw hw; struct atl1c_hw_stats hw_stats; struct mii_if_info mii; /* MII interface info */ diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 7087b88550db..d8eb7dcf278f 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -480,15 +480,10 @@ static int atl1c_set_mac_addr(struct net_device *netdev, void *p) static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter, struct net_device *dev) { - unsigned int head_size; int mtu = dev->mtu; adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ? roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE; - - head_size = SKB_DATA_ALIGN(adapter->rx_buffer_len + NET_SKB_PAD) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); - adapter->rx_frag_size = roundup_pow_of_two(head_size); } static netdev_features_t atl1c_fix_features(struct net_device *netdev, @@ -960,10 +955,6 @@ static void atl1c_free_ring_resources(struct atl1c_adapter *adapter) kfree(adapter->tpd_ring[0].buffer_info); adapter->tpd_ring[0].buffer_info = NULL; } - if (adapter->rx_page) { - put_page(adapter->rx_page); - adapter->rx_page = NULL; - } } /** @@ -1666,36 +1657,6 @@ static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter, skb_checksum_none_assert(skb); } -static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter) -{ - struct sk_buff *skb; - struct page *page; - - if (adapter->rx_frag_size > PAGE_SIZE) - return netdev_alloc_skb(adapter->netdev, - adapter->rx_buffer_len); - - page = adapter->rx_page; - if (!page) { - adapter->rx_page = page = alloc_page(GFP_ATOMIC); - if (unlikely(!page)) - return NULL; - adapter->rx_page_offset = 0; - } - - skb = build_skb(page_address(page) + adapter->rx_page_offset, - adapter->rx_frag_size); - if (likely(skb)) { - skb_reserve(skb, NET_SKB_PAD); - adapter->rx_page_offset += adapter->rx_frag_size; - if (adapter->rx_page_offset >= PAGE_SIZE) - adapter->rx_page = NULL; - else - get_page(page); - } - return skb; -} - static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) { struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring; @@ -1717,13 +1678,24 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) while (next_info->flags & ATL1C_BUFFER_FREE) { rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use); - skb = atl1c_alloc_skb(adapter); + /* When DMA RX address is set to something like + * 0x....fc0, it will be very likely to cause DMA + * RFD overflow issue. + * + * To work around it, we apply rx skb with 64 bytes + * longer space, and offset the address whenever + * 0x....fc0 is detected. + */ + skb = netdev_alloc_skb(adapter->netdev, adapter->rx_buffer_len + 64); if (unlikely(!skb)) { if (netif_msg_rx_err(adapter)) dev_warn(&pdev->dev, "alloc rx buffer failed\n"); break; } + if (((unsigned long)skb->data & 0xfff) == 0xfc0) + skb_reserve(skb, 64); + /* * Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after -- 2.25.1

2 1

[PATCH OLK-5.10] btrfs: fix deadlock with fiemap and extent locking
by Zizhi Wo 06 Jun '24

06 Jun '24

From: Josef Bacik <josef(a)toxicpanda.com> stable inclusion from stable-v6.6.24 commit ded566b4637f1b6b4c9ba74e7d0b8493e93f19cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8ZZ CVE: CVE-2024-35784 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit b0ad381fa7690244802aed119b478b4bdafc31dd upstream. While working on the patchset to remove extent locking I got a lockdep splat with fiemap and pagefaulting with my new extent lock replacement lock. This deadlock exists with our normal code, we just don't have lockdep annotations with the extent locking so we've never noticed it. Since we're copying the fiemap extent to user space on every iteration we have the chance of pagefaulting. Because we hold the extent lock for the entire range we could mkwrite into a range in the file that we have mmap'ed. This would deadlock with the following stack trace [<0>] lock_extent+0x28d/0x2f0 [<0>] btrfs_page_mkwrite+0x273/0x8a0 [<0>] do_page_mkwrite+0x50/0xb0 [<0>] do_fault+0xc1/0x7b0 [<0>] __handle_mm_fault+0x2fa/0x460 [<0>] handle_mm_fault+0xa4/0x330 [<0>] do_user_addr_fault+0x1f4/0x800 [<0>] exc_page_fault+0x7c/0x1e0 [<0>] asm_exc_page_fault+0x26/0x30 [<0>] rep_movs_alternative+0x33/0x70 [<0>] _copy_to_user+0x49/0x70 [<0>] fiemap_fill_next_extent+0xc8/0x120 [<0>] emit_fiemap_extent+0x4d/0xa0 [<0>] extent_fiemap+0x7f8/0xad0 [<0>] btrfs_fiemap+0x49/0x80 [<0>] __x64_sys_ioctl+0x3e1/0xb50 [<0>] do_syscall_64+0x94/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 I wrote an fstest to reproduce this deadlock without my replacement lock and verified that the deadlock exists with our existing locking. To fix this simply don't take the extent lock for the entire duration of the fiemap. This is safe in general because we keep track of where we are when we're searching the tree, so if an ordered extent updates in the middle of our fiemap call we'll still emit the correct extents because we know what offset we were on before. The only place we maintain the lock is searching delalloc. Since the delalloc stuff can change during writeback we want to lock the extent range so we have a consistent view of delalloc at the time we're checking to see if we need to set the delalloc flag. With this patch applied we no longer deadlock with my testcase. CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Filipe Manana <fdmanana(a)suse.com> Signed-off-by: Josef Bacik <josef(a)toxicpanda.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: fs/btrfs/extent_io.c [The key to fixing the patch is the fiemap_process_hole function, which locks only before querying delalloc. Earlier versions do not have this function, and adaptation requires a lot of refactoring patches. So do something similar directly in the get_extent_skip_holes function, which contains the logic to query delalloc.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/btrfs/extent_io.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 685a375bb6af..0d7843323930 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4532,11 +4532,30 @@ static struct extent_map *get_extent_skip_holes(struct btrfs_inode *inode, return NULL; while (1) { + struct extent_state *cached_state = NULL; + u64 lockstart; + u64 lockend; + len = last - offset; if (len == 0) break; len = ALIGN(len, sectorsize); + lockstart = round_down(offset, sectorsize); + lockend = round_up(offset + len, sectorsize); + + /* + * We are only locking for the delalloc range because that's the + * only thing that can change here. With fiemap we have a lock + * on the inode, so no buffered or direct writes can happen. + * + * However mmaps and normal page writeback will cause this to + * change arbitrarily. We have to lock the extent lock here to + * make sure that nobody messes with the tree while we're doing + * btrfs_find_delalloc_in_range. + */ + lock_extent(&inode->io_tree, lockstart, lockend, &cached_state); em = btrfs_get_extent_fiemap(inode, offset, len); + unlock_extent(&inode->io_tree, lockstart, lockend, &cached_state); if (IS_ERR_OR_NULL(em)) return em; @@ -4679,7 +4698,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, u64 isize = i_size_read(&inode->vfs_inode); struct btrfs_key found_key; struct extent_map *em = NULL; - struct extent_state *cached_state = NULL; struct btrfs_path *path; struct btrfs_root *root = inode->root; struct fiemap_cache cache = { 0 }; @@ -4758,9 +4776,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, last_for_get_extent = isize; } - lock_extent_bits(&inode->io_tree, start, start + len - 1, - &cached_state); - em = get_extent_skip_holes(inode, start, last_for_get_extent); if (!em) goto out; @@ -4871,9 +4886,6 @@ int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo, ret = emit_last_fiemap_cache(fieinfo, &cache); free_extent_map(em); out: - unlock_extent_cached(&inode->io_tree, start, start + len - 1, - &cached_state); - out_free_ulist: btrfs_free_path(path); ulist_free(roots); -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] atl1c: Work around the DMA RX overflow issue
by Dong Chenchen 06 Jun '24

06 Jun '24

From: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> mainline inclusion from mainline-v6.7-rc1 commit 86565682e9053e5deb128193ea9e88531bbae9cf category: bugfix bugzilla: 190056, https://gitee.com/src-openeuler/kernel/issues/I9REDN CVE: CVE-2023-52834 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540. Signed-off-by: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> Link: https://lore.kernel.org/r/20230912010711.12036-1-liew.s.piaw@gmail.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Conflicts: drivers/net/ethernet/atheros/atl1c/atl1c.h drivers/net/ethernet/atheros/atl1c/atl1c_main.c [commit 8042824a3c0b and 057f4af2b171 support multiple rx queues for atk1c driver, which lead to context conflicts. commit a9d6df642dc8 use napi_alloc_skb() to optimize performance in NAPI context, which not merged] Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- drivers/net/ethernet/atheros/atl1c/atl1c.h | 1 - .../net/ethernet/atheros/atl1c/atl1c_main.c | 52 +++++-------------- 2 files changed, 12 insertions(+), 41 deletions(-) diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c.h b/drivers/net/ethernet/atheros/atl1c/atl1c.h index a0562a90fb6d..c1792071f41f 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c.h +++ b/drivers/net/ethernet/atheros/atl1c/atl1c.h @@ -508,7 +508,6 @@ struct atl1c_adapter { struct napi_struct napi; struct page *rx_page; unsigned int rx_page_offset; - unsigned int rx_frag_size; struct atl1c_hw hw; struct atl1c_hw_stats hw_stats; struct mii_if_info mii; /* MII interface info */ diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 2c5af0d7666a..8859a26cf3e0 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -464,15 +464,10 @@ static int atl1c_set_mac_addr(struct net_device *netdev, void *p) static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter, struct net_device *dev) { - unsigned int head_size; int mtu = dev->mtu; adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ? roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE; - - head_size = SKB_DATA_ALIGN(adapter->rx_buffer_len + NET_SKB_PAD) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); - adapter->rx_frag_size = roundup_pow_of_two(head_size); } static netdev_features_t atl1c_fix_features(struct net_device *netdev, @@ -944,10 +939,6 @@ static void atl1c_free_ring_resources(struct atl1c_adapter *adapter) kfree(adapter->tpd_ring[0].buffer_info); adapter->tpd_ring[0].buffer_info = NULL; } - if (adapter->rx_page) { - put_page(adapter->rx_page); - adapter->rx_page = NULL; - } } /** @@ -1650,36 +1641,6 @@ static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter, skb_checksum_none_assert(skb); } -static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter) -{ - struct sk_buff *skb; - struct page *page; - - if (adapter->rx_frag_size > PAGE_SIZE) - return netdev_alloc_skb(adapter->netdev, - adapter->rx_buffer_len); - - page = adapter->rx_page; - if (!page) { - adapter->rx_page = page = alloc_page(GFP_ATOMIC); - if (unlikely(!page)) - return NULL; - adapter->rx_page_offset = 0; - } - - skb = build_skb(page_address(page) + adapter->rx_page_offset, - adapter->rx_frag_size); - if (likely(skb)) { - skb_reserve(skb, NET_SKB_PAD); - adapter->rx_page_offset += adapter->rx_frag_size; - if (adapter->rx_page_offset >= PAGE_SIZE) - adapter->rx_page = NULL; - else - get_page(page); - } - return skb; -} - static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) { struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring; @@ -1701,13 +1662,24 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) while (next_info->flags & ATL1C_BUFFER_FREE) { rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use); - skb = atl1c_alloc_skb(adapter); + /* When DMA RX address is set to something like + * 0x....fc0, it will be very likely to cause DMA + * RFD overflow issue. + * + * To work around it, we apply rx skb with 64 bytes + * longer space, and offset the address whenever + * 0x....fc0 is detected. + */ + skb = netdev_alloc_skb(adapter->netdev, adapter->rx_buffer_len + 64); if (unlikely(!skb)) { if (netif_msg_rx_err(adapter)) dev_warn(&pdev->dev, "alloc rx buffer failed\n"); break; } + if (((unsigned long)skb->data & 0xfff) == 0xfc0) + skb_reserve(skb, 64); + /* * Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after -- 2.25.1

2 1

[PATCH OLK-5.10] atl1c: Work around the DMA RX overflow issue
by Dong Chenchen 06 Jun '24

06 Jun '24

From: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> mainline inclusion from mainline-v6.7-rc1 commit 86565682e9053e5deb128193ea9e88531bbae9cf category: bugfix bugzilla: 190056, https://gitee.com/src-openeuler/kernel/issues/I9REDN CVE: CVE-2023-52834 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540. Signed-off-by: Sieng-Piaw Liew <liew.s.piaw(a)gmail.com> Link: https://lore.kernel.org/r/20230912010711.12036-1-liew.s.piaw@gmail.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Conflicts: drivers/net/ethernet/atheros/atl1c/atl1c.h drivers/net/ethernet/atheros/atl1c/atl1c_main.c [commit 8042824a3c0b and 057f4af2b171 support multiple rx queues for atk1c driver, which lead to context conflicts. commit a9d6df642dc8 use napi_alloc_skb() to optimize performance in NAPI context, which not merged] Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- drivers/net/ethernet/atheros/atl1c/atl1c.h | 1 - .../net/ethernet/atheros/atl1c/atl1c_main.c | 52 +++++-------------- 2 files changed, 12 insertions(+), 41 deletions(-) diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c.h b/drivers/net/ethernet/atheros/atl1c/atl1c.h index a0562a90fb6d..c1792071f41f 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c.h +++ b/drivers/net/ethernet/atheros/atl1c/atl1c.h @@ -508,7 +508,6 @@ struct atl1c_adapter { struct napi_struct napi; struct page *rx_page; unsigned int rx_page_offset; - unsigned int rx_frag_size; struct atl1c_hw hw; struct atl1c_hw_stats hw_stats; struct mii_if_info mii; /* MII interface info */ diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 2c5af0d7666a..8859a26cf3e0 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -464,15 +464,10 @@ static int atl1c_set_mac_addr(struct net_device *netdev, void *p) static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter, struct net_device *dev) { - unsigned int head_size; int mtu = dev->mtu; adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ? roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE; - - head_size = SKB_DATA_ALIGN(adapter->rx_buffer_len + NET_SKB_PAD) + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); - adapter->rx_frag_size = roundup_pow_of_two(head_size); } static netdev_features_t atl1c_fix_features(struct net_device *netdev, @@ -944,10 +939,6 @@ static void atl1c_free_ring_resources(struct atl1c_adapter *adapter) kfree(adapter->tpd_ring[0].buffer_info); adapter->tpd_ring[0].buffer_info = NULL; } - if (adapter->rx_page) { - put_page(adapter->rx_page); - adapter->rx_page = NULL; - } } /** @@ -1650,36 +1641,6 @@ static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter, skb_checksum_none_assert(skb); } -static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter) -{ - struct sk_buff *skb; - struct page *page; - - if (adapter->rx_frag_size > PAGE_SIZE) - return netdev_alloc_skb(adapter->netdev, - adapter->rx_buffer_len); - - page = adapter->rx_page; - if (!page) { - adapter->rx_page = page = alloc_page(GFP_ATOMIC); - if (unlikely(!page)) - return NULL; - adapter->rx_page_offset = 0; - } - - skb = build_skb(page_address(page) + adapter->rx_page_offset, - adapter->rx_frag_size); - if (likely(skb)) { - skb_reserve(skb, NET_SKB_PAD); - adapter->rx_page_offset += adapter->rx_frag_size; - if (adapter->rx_page_offset >= PAGE_SIZE) - adapter->rx_page = NULL; - else - get_page(page); - } - return skb; -} - static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) { struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring; @@ -1701,13 +1662,24 @@ static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter) while (next_info->flags & ATL1C_BUFFER_FREE) { rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use); - skb = atl1c_alloc_skb(adapter); + /* When DMA RX address is set to something like + * 0x....fc0, it will be very likely to cause DMA + * RFD overflow issue. + * + * To work around it, we apply rx skb with 64 bytes + * longer space, and offset the address whenever + * 0x....fc0 is detected. + */ + skb = netdev_alloc_skb(adapter->netdev, adapter->rx_buffer_len + 64); if (unlikely(!skb)) { if (netif_msg_rx_err(adapter)) dev_warn(&pdev->dev, "alloc rx buffer failed\n"); break; } + if (((unsigned long)skb->data & 0xfff) == 0xfc0) + skb_reserve(skb, 64); + /* * Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] tipc: fix UAF in error path
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v4.19.314 commit e19ec8ab0e25bc4803d7cc91c84e84532e2781bd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBH3 CVE: CVE-2024-36886 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 080cbb890286cd794f1ee788bbc5463e2deb7c2b upstream. Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path: BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034 CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description linux/mm/kasan/report.c:377 print_report+0xc4/0x620 linux/mm/kasan/report.c:488 kasan_report+0xda/0x110 linux/mm/kasan/report.c:601 kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026 skb_release_all linux/net/core/skbuff.c:1094 __kfree_skb linux/net/core/skbuff.c:1108 kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144 kfree_skb linux/./include/linux/skbuff.h:1244 tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186 tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324 tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824 tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159 tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390 udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108 udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186 udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346 __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422 ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254 dst_input linux/./include/net/dst.h:461 ip_rcv_finish linux/net/ipv4/ip_input.c:449 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534 __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648 process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976 __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576 napi_poll linux/net/core/dev.c:6645 net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781 __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553 do_softirq linux/kernel/softirq.c:454 do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381 local_bh_enable linux/./include/linux/bottom_half.h:33 rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851 __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378 dev_queue_xmit linux/./include/linux/netdevice.h:3169 neigh_hh_output linux/./include/net/neighbour.h:526 neigh_output linux/./include/net/neighbour.h:540 ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235 __ip_finish_output linux/net/ipv4/ip_output.c:313 __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295 ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323 NF_HOOK_COND linux/./include/linux/netfilter.h:303 ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433 dst_output linux/./include/net/dst.h:451 ip_local_out linux/net/ipv4/ip_output.c:129 ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492 udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963 udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250 inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850 sock_sendmsg_nosec linux/net/socket.c:730 __sock_sendmsg linux/net/socket.c:745 __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191 __do_sys_sendto linux/net/socket.c:2203 __se_sys_sendto linux/net/socket.c:2199 __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199 do_syscall_x64 linux/arch/x86/entry/common.c:52 do_syscall_64+0xd8/0x270 linux/arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 linux/arch/x86/entry/entry_64.S:120 RIP: 0033:0x7f3434974f29 Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 37 8f 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff9154f2b8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3434974f29 RDX: 00000000000032c8 RSI: 00007fff9154f300 RDI: 0000000000000003 RBP: 00007fff915532e0 R08: 00007fff91553360 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000212 R12: 000055ed86d261d0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> In the critical scenario, either the relevant skb is freed or its ownership is transferred into a frag_lists. In both cases, the cleanup code must not free it again: we need to clear the skb reference earlier. Fixes: 1149557d64c9 ("tipc: eliminate unnecessary linearization of incoming buffers") Cc: stable(a)vger.kernel.org Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23852 Acked-by: Xin Long <lucien.xin(a)gmail.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/752f1ccf762223d109845365d07f55414058e5a3.17144842… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/tipc/msg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 0ac270444974..ab71267eb708 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -154,6 +154,11 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (!head) goto err; + /* Either the input skb ownership is transferred to headskb + * or the input skb is freed, clear the reference to avoid + * bad access on error path. + */ + *buf = NULL; if (skb_try_coalesce(head, frag, &headstolen, &delta)) { kfree_skb_partial(frag, headstolen); } else { @@ -177,7 +182,6 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) *headbuf = NULL; return 1; } - *buf = NULL; return 0; err: kfree_skb(*buf); -- 2.17.1

2 1

[PATCH OLK-5.10] tipc: fix UAF in error path
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v5.10.217 commit 367766ff9e407f8a68409b7ce4dc4d5a72afeab1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBH3 CVE: CVE-2024-36886 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 080cbb890286cd794f1ee788bbc5463e2deb7c2b upstream. Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path: BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034 CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description linux/mm/kasan/report.c:377 print_report+0xc4/0x620 linux/mm/kasan/report.c:488 kasan_report+0xda/0x110 linux/mm/kasan/report.c:601 kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026 skb_release_all linux/net/core/skbuff.c:1094 __kfree_skb linux/net/core/skbuff.c:1108 kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144 kfree_skb linux/./include/linux/skbuff.h:1244 tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186 tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324 tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824 tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159 tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390 udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108 udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186 udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346 __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422 ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254 dst_input linux/./include/net/dst.h:461 ip_rcv_finish linux/net/ipv4/ip_input.c:449 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534 __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648 process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976 __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576 napi_poll linux/net/core/dev.c:6645 net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781 __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553 do_softirq linux/kernel/softirq.c:454 do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381 local_bh_enable linux/./include/linux/bottom_half.h:33 rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851 __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378 dev_queue_xmit linux/./include/linux/netdevice.h:3169 neigh_hh_output linux/./include/net/neighbour.h:526 neigh_output linux/./include/net/neighbour.h:540 ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235 __ip_finish_output linux/net/ipv4/ip_output.c:313 __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295 ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323 NF_HOOK_COND linux/./include/linux/netfilter.h:303 ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433 dst_output linux/./include/net/dst.h:451 ip_local_out linux/net/ipv4/ip_output.c:129 ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492 udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963 udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250 inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850 sock_sendmsg_nosec linux/net/socket.c:730 __sock_sendmsg linux/net/socket.c:745 __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191 __do_sys_sendto linux/net/socket.c:2203 __se_sys_sendto linux/net/socket.c:2199 __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199 do_syscall_x64 linux/arch/x86/entry/common.c:52 do_syscall_64+0xd8/0x270 linux/arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 linux/arch/x86/entry/entry_64.S:120 RIP: 0033:0x7f3434974f29 Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 37 8f 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff9154f2b8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3434974f29 RDX: 00000000000032c8 RSI: 00007fff9154f300 RDI: 0000000000000003 RBP: 00007fff915532e0 R08: 00007fff91553360 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000212 R12: 000055ed86d261d0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> In the critical scenario, either the relevant skb is freed or its ownership is transferred into a frag_lists. In both cases, the cleanup code must not free it again: we need to clear the skb reference earlier. Fixes: 1149557d64c9 ("tipc: eliminate unnecessary linearization of incoming buffers") Cc: stable(a)vger.kernel.org Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23852 Acked-by: Xin Long <lucien.xin(a)gmail.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/752f1ccf762223d109845365d07f55414058e5a3.17144842… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/tipc/msg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 91dcf648d32b..28fd19c6c414 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -162,6 +162,11 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (!head) goto err; + /* Either the input skb ownership is transferred to headskb + * or the input skb is freed, clear the reference to avoid + * bad access on error path. + */ + *buf = NULL; if (skb_try_coalesce(head, frag, &headstolen, &delta)) { kfree_skb_partial(frag, headstolen); } else { @@ -185,7 +190,6 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) *headbuf = NULL; return 1; } - *buf = NULL; return 0; err: kfree_skb(*buf); -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] tipc: fix UAF in error path
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v5.10.217 commit 367766ff9e407f8a68409b7ce4dc4d5a72afeab1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBH3 CVE: CVE-2024-36886 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 080cbb890286cd794f1ee788bbc5463e2deb7c2b upstream. Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path: BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034 CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description linux/mm/kasan/report.c:377 print_report+0xc4/0x620 linux/mm/kasan/report.c:488 kasan_report+0xda/0x110 linux/mm/kasan/report.c:601 kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 skb_release_data+0x5af/0x880 linux/net/core/skbuff.c:1026 skb_release_all linux/net/core/skbuff.c:1094 __kfree_skb linux/net/core/skbuff.c:1108 kfree_skb_reason+0x12d/0x210 linux/net/core/skbuff.c:1144 kfree_skb linux/./include/linux/skbuff.h:1244 tipc_buf_append+0x425/0xb50 linux/net/tipc/msg.c:186 tipc_link_input+0x224/0x7c0 linux/net/tipc/link.c:1324 tipc_link_rcv+0x76e/0x2d70 linux/net/tipc/link.c:1824 tipc_rcv+0x45f/0x10f0 linux/net/tipc/node.c:2159 tipc_udp_recv+0x73b/0x8f0 linux/net/tipc/udp_media.c:390 udp_queue_rcv_one_skb+0xad2/0x1850 linux/net/ipv4/udp.c:2108 udp_queue_rcv_skb+0x131/0xb00 linux/net/ipv4/udp.c:2186 udp_unicast_rcv_skb+0x165/0x3b0 linux/net/ipv4/udp.c:2346 __udp4_lib_rcv+0x2594/0x3400 linux/net/ipv4/udp.c:2422 ip_protocol_deliver_rcu+0x30c/0x4e0 linux/net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x2e4/0x520 linux/net/ipv4/ip_input.c:233 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_local_deliver+0x18e/0x1f0 linux/net/ipv4/ip_input.c:254 dst_input linux/./include/net/dst.h:461 ip_rcv_finish linux/net/ipv4/ip_input.c:449 NF_HOOK linux/./include/linux/netfilter.h:314 NF_HOOK linux/./include/linux/netfilter.h:308 ip_rcv+0x2c5/0x5d0 linux/net/ipv4/ip_input.c:569 __netif_receive_skb_one_core+0x199/0x1e0 linux/net/core/dev.c:5534 __netif_receive_skb+0x1f/0x1c0 linux/net/core/dev.c:5648 process_backlog+0x101/0x6b0 linux/net/core/dev.c:5976 __napi_poll.constprop.0+0xba/0x550 linux/net/core/dev.c:6576 napi_poll linux/net/core/dev.c:6645 net_rx_action+0x95a/0xe90 linux/net/core/dev.c:6781 __do_softirq+0x21f/0x8e7 linux/kernel/softirq.c:553 do_softirq linux/kernel/softirq.c:454 do_softirq+0xb2/0xf0 linux/kernel/softirq.c:441 </IRQ> <TASK> __local_bh_enable_ip+0x100/0x120 linux/kernel/softirq.c:381 local_bh_enable linux/./include/linux/bottom_half.h:33 rcu_read_unlock_bh linux/./include/linux/rcupdate.h:851 __dev_queue_xmit+0x871/0x3ee0 linux/net/core/dev.c:4378 dev_queue_xmit linux/./include/linux/netdevice.h:3169 neigh_hh_output linux/./include/net/neighbour.h:526 neigh_output linux/./include/net/neighbour.h:540 ip_finish_output2+0x169f/0x2550 linux/net/ipv4/ip_output.c:235 __ip_finish_output linux/net/ipv4/ip_output.c:313 __ip_finish_output+0x49e/0x950 linux/net/ipv4/ip_output.c:295 ip_finish_output+0x31/0x310 linux/net/ipv4/ip_output.c:323 NF_HOOK_COND linux/./include/linux/netfilter.h:303 ip_output+0x13b/0x2a0 linux/net/ipv4/ip_output.c:433 dst_output linux/./include/net/dst.h:451 ip_local_out linux/net/ipv4/ip_output.c:129 ip_send_skb+0x3e5/0x560 linux/net/ipv4/ip_output.c:1492 udp_send_skb+0x73f/0x1530 linux/net/ipv4/udp.c:963 udp_sendmsg+0x1a36/0x2b40 linux/net/ipv4/udp.c:1250 inet_sendmsg+0x105/0x140 linux/net/ipv4/af_inet.c:850 sock_sendmsg_nosec linux/net/socket.c:730 __sock_sendmsg linux/net/socket.c:745 __sys_sendto+0x42c/0x4e0 linux/net/socket.c:2191 __do_sys_sendto linux/net/socket.c:2203 __se_sys_sendto linux/net/socket.c:2199 __x64_sys_sendto+0xe0/0x1c0 linux/net/socket.c:2199 do_syscall_x64 linux/arch/x86/entry/common.c:52 do_syscall_64+0xd8/0x270 linux/arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77 linux/arch/x86/entry/entry_64.S:120 RIP: 0033:0x7f3434974f29 Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 37 8f 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff9154f2b8 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3434974f29 RDX: 00000000000032c8 RSI: 00007fff9154f300 RDI: 0000000000000003 RBP: 00007fff915532e0 R08: 00007fff91553360 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000212 R12: 000055ed86d261d0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> In the critical scenario, either the relevant skb is freed or its ownership is transferred into a frag_lists. In both cases, the cleanup code must not free it again: we need to clear the skb reference earlier. Fixes: 1149557d64c9 ("tipc: eliminate unnecessary linearization of incoming buffers") Cc: stable(a)vger.kernel.org Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-23852 Acked-by: Xin Long <lucien.xin(a)gmail.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Link: https://lore.kernel.org/r/752f1ccf762223d109845365d07f55414058e5a3.17144842… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/tipc/msg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 91dcf648d32b..28fd19c6c414 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -162,6 +162,11 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (!head) goto err; + /* Either the input skb ownership is transferred to headskb + * or the input skb is freed, clear the reference to avoid + * bad access on error path. + */ + *buf = NULL; if (skb_try_coalesce(head, frag, &headstolen, &delta)) { kfree_skb_partial(frag, headstolen); } else { @@ -185,7 +190,6 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) *headbuf = NULL; return 1; } - *buf = NULL; return 0; err: kfree_skb(*buf); -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS] sched: remove WARN_ON on checking rq->tmp_alone_branch
by Hui Tang 06 Jun '24

06 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPMT --------------------------- Remove warn printk for checking 'rq->tmp_alone_branch != &rq->leaf_cfs_rq_list' to avoid rq deadlock. Deadlock analaze: cpu 0 distribute_cfs_runtime --- rq_lock_irqsave(rq, &rf); ->__warn_printk ->try_to_wake_up --- rq_lock(rq, &rf), deadlock Call Trace: queued_spin_lock_slowpath at ffff000080173358 try_to_wake_up at ffff000080141068 wake_up_process at ffff00008014113c insert_work at ffff000080123750 __queue_work at ffff0000801257ac queue_work_on at ffff000080125c54 drm_fb_helper_dirty at ffff0000806dcd44 drm_fb_helper_sys_imageblit at ffff0000806dcf04 virtio_gpu_3d_imageblit at ffff000000c915d0 [virtio_gpu] soft_cursor at ffff0000805e3e04 bit_cursor at ffff0000805e3654 fbcon_cursor at ffff0000805df404 hide_cursor at ffff000080677d68 vt_console_print at ffff0000806799dc console_unlock at ffff000080183d78 vprintk_emit at ffff000080185948 vprintk_default at ffff000080185b80 vprintk_func at ffff000080186c44 printk at ffff000080186394 __warn_printk at ffff000080102d60 unthrottle_cfs_rq at ffff000080155e50 distribute_cfs_runtime at ffff00008015617c sched_cfs_period_timer at ffff00008015654c __hrtimer_run_queues at ffff0000801b2c58 hrtimer_interrupt at ffff0000801b3c74 arch_timer_handler_virt at ffff00008089dc3c handle_percpu_devid_irq at ffff00008018fb3c generic_handle_irq at ffff000080187140 __handle_domain_irq at ffff000080187adc gic_handle_irq at ffff000080081814 Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/fair.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3bd5aa6dedb3..3f6dc69d68fb 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -395,7 +395,9 @@ static inline void list_del_leaf_cfs_rq(struct cfs_rq *cfs_rq) static inline void assert_list_leaf_cfs_rq(struct rq *rq) { - SCHED_WARN_ON(rq->tmp_alone_branch != &rq->leaf_cfs_rq_list); + /* There are possible rq deadlock when warn is triggered, + * since try_to_wake_up may called by __warn_printk. + */ } /* Iterate thr' all leaf cfs_rq's on a runqueue */ -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: USB: Fix wrong-direction WARNING in plusb.c
by Zhang Zekun 06 Jun '24

06 Jun '24

From: Alan Stern <stern(a)rowland.harvard.edu> stable inclusion from stable-v5.10.168 commit 1be271c52bf3554edcb8d124d1f8c7f777ee5727 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4KG CVE: CVE-2023-52742 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- commit 811d581194f7412eda97acc03d17fc77824b561f upstream. The syzbot fuzzer detected a bug in the plusb network driver: A zero-length control-OUT transfer was treated as a read instead of a write. In modern kernels this error provokes a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411 usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in: CPU: 1 PID: 4645 Comm: dhcpcd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 ... Call Trace: <TASK> usb_start_wait_urb+0x101/0x4b0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 __usbnet_read_cmd+0xb9/0x390 drivers/net/usb/usbnet.c:2010 usbnet_read_cmd+0x96/0xf0 drivers/net/usb/usbnet.c:2068 pl_vendor_req drivers/net/usb/plusb.c:60 [inline] pl_set_QuickLink_features drivers/net/usb/plusb.c:75 [inline] pl_reset+0x2f/0xf0 drivers/net/usb/plusb.c:85 usbnet_open+0xcc/0x5d0 drivers/net/usb/usbnet.c:889 __dev_open+0x297/0x4d0 net/core/dev.c:1417 __dev_change_flags+0x587/0x750 net/core/dev.c:8530 dev_change_flags+0x97/0x170 net/core/dev.c:8602 devinet_ioctl+0x15a2/0x1d70 net/ipv4/devinet.c:1147 inet_ioctl+0x33f/0x380 net/ipv4/af_inet.c:979 sock_do_ioctl+0xcc/0x230 net/socket.c:1169 sock_ioctl+0x1f8/0x680 net/socket.c:1286 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The fix is to call usbnet_write_cmd() instead of usbnet_read_cmd() and remove the USB_DIR_IN flag. Reported-and-tested-by: syzbot+2a0e7abd24f1eb90ce25(a)syzkaller.appspotmail.com Signed-off-by: Alan Stern <stern(a)rowland.harvard.edu> Fixes: 090ffa9d0e90 ("[PATCH] USB: usbnet (9/9) module for pl2301/2302 cables") CC: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/00000000000052099f05f3b3e298@google.com/ Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/net/usb/plusb.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c index 17c9c63b8eeb..ce7862dac2b7 100644 --- a/drivers/net/usb/plusb.c +++ b/drivers/net/usb/plusb.c @@ -57,9 +57,7 @@ static inline int pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) { - return usbnet_read_cmd(dev, req, - USB_DIR_IN | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, + return usbnet_write_cmd(dev, req, USB_TYPE_VENDOR | USB_RECIP_DEVICE, val, index, NULL, 0); } -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] drm/amd/display: Avoid NULL dereference of timing generator
by Wenyu Huang 06 Jun '24

06 Jun '24

From: Wayne Lin <wayne.lin(a)amd.com> stable inclusion from stable-v5.10.202 commit 79b6a90f4f2433312154cd68452b0ba501fa74db category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4M5 CVE: CVE-2023-52753 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b1904ed480cee3f9f4036ea0e36d139cb5fee2d6 ] [Why & How] Check whether assigned timing generator is NULL or not before accessing its funcs to prevent NULL dereference. Reviewed-by: Jun Lei <jun.lei(a)amd.com> Acked-by: Hersen Wu <hersenxs.wu(a)amd.com> Signed-off-by: Wayne Lin <wayne.lin(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wenyu Huang <huangwenyu5(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index d48fd87d3b95..8206c6edba74 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -534,7 +534,7 @@ uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream) for (i = 0; i < MAX_PIPES; i++) { struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg; - if (res_ctx->pipe_ctx[i].stream != stream) + if (res_ctx->pipe_ctx[i].stream != stream || !tg) continue; return tg->funcs->get_frame_count(tg); @@ -593,7 +593,7 @@ bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream, for (i = 0; i < MAX_PIPES; i++) { struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg; - if (res_ctx->pipe_ctx[i].stream != stream) + if (res_ctx->pipe_ctx[i].stream != stream || !tg) continue; tg->funcs->get_scanoutpos(tg, -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] pwm: Fix double shift bug
by Wenyu Huang 06 Jun '24

06 Jun '24

From: Dan Carpenter <dan.carpenter(a)linaro.org> stable inclusion from stable-v5.10.202 commit e52518b9cb9fc98fc043c8fb2b8cfc619ca8a88b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4KN CVE: CVE-2023-52756 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d27abbfd4888d79dd24baf50e774631046ac4732 ] These enums are passed to set/test_bit(). The set/test_bit() functions take a bit number instead of a shifted value. Passing a shifted value is a double shift bug like doing BIT(BIT(1)). The double shift bug doesn't cause a problem here because we are only checking 0 and 1 but if the value was 5 or above then it can lead to a buffer overflow. Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Reviewed-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Reviewed-by: Sam Protsenko <semen.protsenko(a)linaro.org> Signed-off-by: Thierry Reding <thierry.reding(a)gmail.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wenyu Huang <huangwenyu5(a)huawei.com> --- include/linux/pwm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/pwm.h b/include/linux/pwm.h index a13ff383fa1d..c0cf6613373f 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -44,8 +44,8 @@ struct pwm_args { }; enum { - PWMF_REQUESTED = 1 << 0, - PWMF_EXPORTED = 1 << 1, + PWMF_REQUESTED = 0, + PWMF_EXPORTED = 1, }; /* -- 2.34.1

2 1

[PATCH OLK-5.10 0/1] memcg: fix input of try_to_free_mem_cgroup_pages
by Chen Ridong 06 Jun '24

06 Jun '24

*** BLURB HERE *** Chen Ridong (1): memcg: fix input of try_to_free_mem_cgroup_pages mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10 v1 0/3] Bugfix backport for rcu
by Wei Li 06 Jun '24

06 Jun '24

Backport 3 bugfix patches for rcu from mainline. Frederic Weisbecker (3): rcu: Defer RCU kthreads wakeup when CPU is dying entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up srcu: Fix callbacks acceleration mishandling kernel/entry/common.c | 3 ++- kernel/rcu/srcutree.c | 31 +++++++++++++++++++++++++++++-- kernel/rcu/tree.c | 34 +++++++++++++++++++++++++++++++++- kernel/rcu/tree_exp.h | 3 +-- 4 files changed, 65 insertions(+), 6 deletions(-) -- 2.25.1

2 4

[PATCH openEuler-22.03-LTS-SP1] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH OLK-6.6] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH OLK-5.10] ubifs: Check @c->dirty_[n|p]n_cnt and @c->nroot state under @c->lp_mutex
by Zhihao Cheng 06 Jun '24

06 Jun '24

mainline inclusion from mainline-v6.8-rc1 commit c07a4dab243a99589bdfd5ec364b5cb1db6b70f3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9VPBQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The checking of @c->nroot->flags and @c->dirty_[n|p]n_cnt in function nothing_to_commit() is not atomic, which could be raced with modifying of lpt, for example: P1 P2 P3 run_gc ubifs_garbage_collect do_commit ubifs_return_leb ubifs_lpt_lookup_dirty dirty_cow_nnode do_commit nothing_to_commit if (test_bit(DIRTY_CNODE, &c->nroot->flags) // false test_and_set_bit(DIRTY_CNODE, &nnode->flags) c->dirty_nn_cnt += 1 ubifs_assert(c, c->dirty_nn_cnt == 0) // false ! Fetch a reproducer in Link: UBIFS error (ubi0:0 pid 2747): ubifs_assert_failed UBIFS assert failed: c->dirty_pn_cnt == 0, in fs/ubifs/commit.c Call Trace: ubifs_ro_mode+0x58/0x70 [ubifs] ubifs_assert_failed+0x6a/0x90 [ubifs] do_commit+0x5b7/0x930 [ubifs] ubifs_run_commit+0xc6/0x1a0 [ubifs] ubifs_sync_fs+0xd8/0x110 [ubifs] sync_filesystem+0xb4/0x120 do_syscall_64+0x6f/0x140 Fix it by checking @c->dirty_[n|p]n_cnt and @c->nroot state with @c->lp_mutex locked. Fixes: 944fdef52ca9 ("UBIFS: do not start the commit if there is nothing to commit") Link: https://bugzilla.kernel.org/show_bug.cgi?id=218162 Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Zhihao Cheng <chengzhihao(a)huaweicloud.com> --- fs/ubifs/commit.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c index c4fc1047fc07..5b3a840098b0 100644 --- a/fs/ubifs/commit.c +++ b/fs/ubifs/commit.c @@ -69,6 +69,14 @@ static int nothing_to_commit(struct ubifs_info *c) if (c->zroot.znode && ubifs_zn_dirty(c->zroot.znode)) return 0; + /* + * Increasing @c->dirty_pn_cnt/@c->dirty_nn_cnt and marking + * nnodes/pnodes as dirty in run_gc() could race with following + * checking, which leads inconsistent states between @c->nroot + * and @c->dirty_pn_cnt/@c->dirty_nn_cnt, holding @c->lp_mutex + * to avoid that. + */ + mutex_lock(&c->lp_mutex); /* * Even though the TNC is clean, the LPT tree may have dirty nodes. For * example, this may happen if the budgeting subsystem invoked GC to @@ -76,12 +84,15 @@ static int nothing_to_commit(struct ubifs_info *c) * free space. In this case GC would just change the lprops of this * LEB (by turning all space into free space) and unmap it. */ - if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) + if (c->nroot && test_bit(DIRTY_CNODE, &c->nroot->flags)) { + mutex_unlock(&c->lp_mutex); return 0; + } ubifs_assert(c, atomic_long_read(&c->dirty_zn_cnt) == 0); ubifs_assert(c, c->dirty_pn_cnt == 0); ubifs_assert(c, c->dirty_nn_cnt == 0); + mutex_unlock(&c->lp_mutex); return 1; } -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS] sched: remove WARN_ON on checking rq->tmp_alone_branch
by Hui Tang 06 Jun '24

06 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPMT --------------------------- Remove warn printk for checking 'rq->tmp_alone_branch != &rq->leaf_cfs_rq_list' to avoid rq deadlock. Deadlock analaze: cpu 0 distribute_cfs_runtime --- rq_lock_irqsave(rq, &rf); ->__warn_printk ->try_to_wake_up --- rq_lock(rq, &rf), deadlock Call Trace: queued_spin_lock_slowpath at ffff000080173358 try_to_wake_up at ffff000080141068 wake_up_process at ffff00008014113c insert_work at ffff000080123750 __queue_work at ffff0000801257ac queue_work_on at ffff000080125c54 drm_fb_helper_dirty at ffff0000806dcd44 drm_fb_helper_sys_imageblit at ffff0000806dcf04 virtio_gpu_3d_imageblit at ffff000000c915d0 [virtio_gpu] soft_cursor at ffff0000805e3e04 bit_cursor at ffff0000805e3654 fbcon_cursor at ffff0000805df404 hide_cursor at ffff000080677d68 vt_console_print at ffff0000806799dc console_unlock at ffff000080183d78 vprintk_emit at ffff000080185948 vprintk_default at ffff000080185b80 vprintk_func at ffff000080186c44 printk at ffff000080186394 __warn_printk at ffff000080102d60 unthrottle_cfs_rq at ffff000080155e50 distribute_cfs_runtime at ffff00008015617c sched_cfs_period_timer at ffff00008015654c __hrtimer_run_queues at ffff0000801b2c58 hrtimer_interrupt at ffff0000801b3c74 arch_timer_handler_virt at ffff00008089dc3c handle_percpu_devid_irq at ffff00008018fb3c generic_handle_irq at ffff000080187140 __handle_domain_irq at ffff000080187adc gic_handle_irq at ffff000080081814 Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/fair.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3bd5aa6dedb3..7361caac39c5 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -395,7 +395,6 @@ static inline void list_del_leaf_cfs_rq(struct cfs_rq *cfs_rq) static inline void assert_list_leaf_cfs_rq(struct rq *rq) { - SCHED_WARN_ON(rq->tmp_alone_branch != &rq->leaf_cfs_rq_list); } /* Iterate thr' all leaf cfs_rq's on a runqueue */ -- 2.34.1

2 1

[PATCH OLK-5.10] dmaengine: fsl-qdma: Fix a memory leak related to the queue command DMA
by Ze Zuo 06 Jun '24

06 Jun '24

From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> stable inclusion from stable-v5.10.210 commit ae6769ba51417c1c86fb645812d5bff455eee802 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q99M CVE: CVE-2024-35833 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 3aa58cb51318e329d203857f7a191678e60bb714 ] This dma_alloc_coherent() is undone neither in the remove function, nor in the error handling path of fsl_qdma_probe(). Switch to the managed version to fix both issues. Fixes: b092529e0aa0 ("dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Link: https://lore.kernel.org/r/7f66aa14f59d32b13672dde28602b47deb294e1f.17046215… Signed-off-by: Vinod Koul <vkoul(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ze Zuo <zuoze1(a)huawei.com> --- drivers/dma/fsl-qdma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c index a59d0e743af2..bc0830de08b4 100644 --- a/drivers/dma/fsl-qdma.c +++ b/drivers/dma/fsl-qdma.c @@ -514,11 +514,11 @@ static struct fsl_qdma_queue queue_temp = queue_head + i + (j * queue_num); queue_temp->cq = - dma_alloc_coherent(&pdev->dev, - sizeof(struct fsl_qdma_format) * - queue_size[i], - &queue_temp->bus_addr, - GFP_KERNEL); + dmam_alloc_coherent(&pdev->dev, + sizeof(struct fsl_qdma_format) * + queue_size[i], + &queue_temp->bus_addr, + GFP_KERNEL); if (!queue_temp->cq) return NULL; queue_temp->block_base = fsl_qdma->block_base + -- 2.25.1

2 1

[PATCH OLK-5.10 0/1] memcg: fix input of try_to_free_mem_cgroup_pages
by Chen Ridong 06 Jun '24

06 Jun '24

*** BLURB HERE *** Chen Ridong (1): memcg: fix input of try_to_free_mem_cgroup_pages mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10] afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server
by Zizhi Wo 06 Jun '24

06 Jun '24

From: David Howells <dhowells(a)redhat.com> stable inclusion from stable-v5.14.9 commit e66fc460d6dcf85cf12288e133a081205aebcd97 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4M4 CVE: CVE-2021-47366 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit b537a3c21775075395af475dcc6ef212fcf29db8 ] AFS-3 has two data fetch RPC variants, FS.FetchData and FS.FetchData64, and Linux's afs client switches between them when talking to a non-YFS server if the read size, the file position or the sum of the two have the upper 32 bits set of the 64-bit value. This is a problem, however, since the file position and length fields of FS.FetchData are *signed* 32-bit values. Fix this by capturing the capability bits obtained from the fileserver when it's sent an FS.GetCapabilities RPC, rather than just discarding them, and then picking out the VICED_CAPABILITY_64BITFILES flag. This can then be used to decide whether to use FS.FetchData or FS.FetchData64 - and also FS.StoreData or FS.StoreData64 - rather than using upper_32_bits() to switch on the parameter values. This capabilities flag could also be used to limit the maximum size of the file, but all servers must be checked for that. Note that the issue does not exist with FS.StoreData - that uses *unsigned* 32-bit values. It's also not a problem with Auristor servers as its YFS.FetchData64 op uses unsigned 64-bit values. This can be tested by cloning a git repo through an OpenAFS client to an OpenAFS server and then doing "git status" on it from a Linux afs client[1]. Provided the clone has a pack file that's in the 2G-4G range, the git status will show errors like: error: packfile .git/objects/pack/pack-5e813c51d12b6847bbc0fcd97c2bca66da50079c.pack does not match index error: packfile .git/objects/pack/pack-5e813c51d12b6847bbc0fcd97c2bca66da50079c.pack does not match index This can be observed in the server's FileLog with something like the following appearing: Sun Aug 29 19:31:39 2021 SRXAFS_FetchData, Fid = 2303380852.491776.3263114, Host 192.168.11.201:7001, Id 1001 Sun Aug 29 19:31:39 2021 CheckRights: len=0, for host=192.168.11.201:7001 Sun Aug 29 19:31:39 2021 FetchData_RXStyle: Pos 18446744071815340032, Len 3154 Sun Aug 29 19:31:39 2021 FetchData_RXStyle: file size 2400758866 ... Sun Aug 29 19:31:40 2021 SRXAFS_FetchData returns 5 Note the file position of 18446744071815340032. This is the requested file position sign-extended. Fixes: b9b1f8d5930a ("AFS: write support fixes") Reported-by: Markus Suvanto <markus.suvanto(a)gmail.com> Signed-off-by: David Howells <dhowells(a)redhat.com> Reviewed-by: Marc Dionne <marc.dionne(a)auristor.com> Tested-by: Markus Suvanto <markus.suvanto(a)gmail.com> cc: linux-afs(a)lists.infradead.org cc: openafs-devel(a)openafs.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=214217#c9 [1] Link: https://lore.kernel.org/r/951332.1631308745@warthog.procyon.org.uk/ Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/afs/fs_probe.c fs/afs/fsclient.c [Simple context conflict adaptation.] Signed-off-by: Zizhi Wo <wozizhi(a)huawei.com> --- fs/afs/fs_probe.c | 8 +++++++- fs/afs/fsclient.c | 30 ++++++++++++++++++++---------- fs/afs/internal.h | 1 + fs/afs/protocol_afs.h | 15 +++++++++++++++ fs/afs/protocol_yfs.h | 6 ++++++ 5 files changed, 49 insertions(+), 11 deletions(-) create mode 100644 fs/afs/protocol_afs.h diff --git a/fs/afs/fs_probe.c b/fs/afs/fs_probe.c index def80365fe79..daaf3810cc92 100644 --- a/fs/afs/fs_probe.c +++ b/fs/afs/fs_probe.c @@ -9,6 +9,7 @@ #include <linux/slab.h> #include "afs_fs.h" #include "internal.h" +#include "protocol_afs.h" #include "protocol_yfs.h" static unsigned int afs_fs_probe_fast_poll_interval = 30 * HZ; @@ -102,7 +103,7 @@ void afs_fileserver_probe_result(struct afs_call *call) struct afs_addr_list *alist = call->alist; struct afs_server *server = call->server; unsigned int index = call->addr_ix; - unsigned int rtt_us = 0; + unsigned int rtt_us = 0, cap0; int ret = call->error; _enter("%pU,%u", &server->uuid, index); @@ -159,6 +160,11 @@ void afs_fileserver_probe_result(struct afs_call *call) clear_bit(AFS_SERVER_FL_IS_YFS, &server->flags); alist->addrs[index].srx_service = call->service_id; } + cap0 = ntohl(call->tmp); + if (cap0 & AFS3_VICED_CAPABILITY_64BITFILES) + set_bit(AFS_SERVER_FL_HAS_FS64, &server->flags); + else + clear_bit(AFS_SERVER_FL_HAS_FS64, &server->flags); } rxrpc_kernel_get_srtt(call->net->socket, call->rxcall, &rtt_us); diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index 0048a32cb040..bf1fd9d187dc 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -483,9 +483,7 @@ void afs_fs_fetch_data(struct afs_operation *op) struct afs_read *req = op->fetch.req; __be32 *bp; - if (upper_32_bits(req->pos) || - upper_32_bits(req->len) || - upper_32_bits(req->pos + req->len)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_fetch_data64(op); _enter(""); @@ -1149,8 +1147,7 @@ void afs_fs_store_data(struct afs_operation *op) (unsigned long long) size, (unsigned long long) pos, (unsigned long long) i_size); - if (upper_32_bits(pos) || upper_32_bits(i_size) || upper_32_bits(size) || - upper_32_bits(pos + size)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_store_data64(op, pos, size, i_size); call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData, @@ -1264,7 +1261,7 @@ static void afs_fs_setattr_size(struct afs_operation *op) key_serial(op->key), vp->fid.vid, vp->fid.vnode); ASSERT(attr->ia_valid & ATTR_SIZE); - if (upper_32_bits(attr->ia_size)) + if (test_bit(AFS_SERVER_FL_HAS_FS64, &op->server->flags)) return afs_fs_setattr_size64(op); call = afs_alloc_flat_call(op->net, &afs_RXFSStoreData_as_Status, @@ -1691,20 +1688,33 @@ static int afs_deliver_fs_get_capabilities(struct afs_call *call) return ret; count = ntohl(call->tmp); - call->count = count; call->count2 = count; - afs_extract_discard(call, count * sizeof(__be32)); + if (count == 0) { + call->unmarshall = 4; + call->tmp = 0; + break; + } + + /* Extract the first word of the capabilities to call->tmp */ + afs_extract_to_tmp(call); call->unmarshall++; fallthrough; - /* Extract capabilities words */ case 2: ret = afs_extract_data(call, false); if (ret < 0) return ret; - /* TODO: Examine capabilities */ + afs_extract_discard(call, (count - 1) * sizeof(__be32)); + call->unmarshall++; + fallthrough; + + /* Extract remaining capabilities words */ + case 3: + ret = afs_extract_data(call, false); + if (ret < 0) + return ret; call->unmarshall++; break; diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 31c7a562147c..94d544fc3353 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -510,6 +510,7 @@ struct afs_server { #define AFS_SERVER_FL_IS_YFS 16 /* Server is YFS not AFS */ #define AFS_SERVER_FL_NO_IBULK 17 /* Fileserver doesn't support FS.InlineBulkStatus */ #define AFS_SERVER_FL_NO_RM2 18 /* Fileserver doesn't support YFS.RemoveFile2 */ +#define AFS_SERVER_FL_HAS_FS64 19 /* Fileserver supports FS.{Fetch,Store}Data64 */ atomic_t ref; /* Object refcount */ atomic_t active; /* Active user count */ u32 addr_version; /* Address list version */ diff --git a/fs/afs/protocol_afs.h b/fs/afs/protocol_afs.h new file mode 100644 index 000000000000..0c39358c8b70 --- /dev/null +++ b/fs/afs/protocol_afs.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* AFS protocol bits + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells(a)redhat.com) + */ + + +#define AFSCAPABILITIESMAX 196 /* Maximum number of words in a capability set */ + +/* AFS3 Fileserver capabilities word 0 */ +#define AFS3_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Uses UAE errors */ +#define AFS3_VICED_CAPABILITY_64BITFILES 0x0002 /* FetchData64 & StoreData64 supported */ +#define AFS3_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */ +#define AFS3_VICED_CAPABILITY_SANEACLS 0x0008 /* ACLs reviewed for sanity - don't use */ diff --git a/fs/afs/protocol_yfs.h b/fs/afs/protocol_yfs.h index b5bd03b1d3c7..e4cd89c44c46 100644 --- a/fs/afs/protocol_yfs.h +++ b/fs/afs/protocol_yfs.h @@ -168,3 +168,9 @@ enum yfs_lock_type { yfs_LockMandatoryWrite = 0x101, yfs_LockMandatoryExtend = 0x102, }; + +/* RXYFS Viced Capability Flags */ +#define YFS_VICED_CAPABILITY_ERRORTRANS 0x0001 /* Deprecated v0.195 */ +#define YFS_VICED_CAPABILITY_64BITFILES 0x0002 /* Deprecated v0.195 */ +#define YFS_VICED_CAPABILITY_WRITELOCKACL 0x0004 /* Can lock a file even without lock perm */ +#define YFS_VICED_CAPABILITY_SANEACLS 0x0008 /* Deprecated v0.195 */ -- 2.39.2

2 1

[PATCH OLK-5.10 0/3] ext4 bugfix from mainline
by Yang Erkun 06 Jun '24

06 Jun '24

Christoph Hellwig (1): iomap: update ki_pos a little later in iomap_dio_complete Jan Kara (2): ext4: properly sync file size update after O_SYNC direct IO ext4: fix warning in ext4_dio_write_end_io() fs/ext4/file.c | 154 +++++++++++++++++++------------------------ fs/iomap/direct-io.c | 19 +++--- 2 files changed, 78 insertions(+), 95 deletions(-) -- 2.39.2

2 4

[PATCH openEuler-22.03-LTS-SP1 0/3] ext4 bugfix from mainline
by Yang Erkun 06 Jun '24

06 Jun '24

Christoph Hellwig (1): iomap: update ki_pos a little later in iomap_dio_complete Jan Kara (2): ext4: properly sync file size update after O_SYNC direct IO ext4: fix warning in ext4_dio_write_end_io() fs/ext4/file.c | 154 +++++++++++++++++++------------------------ fs/iomap/direct-io.c | 19 +++--- 2 files changed, 78 insertions(+), 95 deletions(-) -- 2.39.2

2 4

[PATCH openEuler-22.03-LTS-SP1 1/3] iomap: update ki_pos a little later in iomap_dio_complete
by Yang Erkun 06 Jun '24

06 Jun '24

From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v6.4-rc6 commit 936e114a245b6e38e0dbf706a67e7611fc993da1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VOEK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Move the ki_pos update down a bit to prepare for a better common helper that invalidates pages based of an iocb. Link: https://lkml.kernel.org/r/20230601145904.1385409-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Damien Le Moal <dlemoal(a)kernel.org> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Andreas Gruenbacher <agruenba(a)redhat.com> Cc: Anna Schumaker <anna(a)kernel.org> Cc: Chao Yu <chao(a)kernel.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Ilya Dryomov <idryomov(a)gmail.com> Cc: Jaegeuk Kim <jaegeuk(a)kernel.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Miklos Szeredi <mszeredi(a)redhat.com> Cc: Theodore Ts'o <tytso(a)mit.edu> Cc: Trond Myklebust <trond.myklebust(a)hammerspace.com> Cc: Xiubo Li <xiubli(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: fs/iomap/direct-io.c [4fdccaa0d184 ("iomap: Add done_before argument to iomap_dio_rw") not merged] Signed-off-by: Yang Erkun <yangerkun(a)huawei.com> --- fs/iomap/direct-io.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..ad12ffcc5085 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -94,7 +94,6 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) if (offset + ret > dio->i_size && !(dio->flags & IOMAP_DIO_WRITE)) ret = dio->i_size - offset; - iocb->ki_pos += ret; } /* @@ -121,13 +120,17 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) } inode_dio_end(file_inode(iocb->ki_filp)); - /* - * If this is a DSYNC write, make sure we push it to stable storage now - * that we've written data. - */ - if (ret > 0 && (dio->flags & IOMAP_DIO_NEED_SYNC)) { - WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); - ret = generic_write_sync(iocb, ret); + if (ret > 0) { + iocb->ki_pos += ret; + + /* + * If this is a DSYNC write, make sure we push it to stable + * storage now that we've written data. + */ + if (dio->flags & IOMAP_DIO_NEED_SYNC) { + WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); + ret = generic_write_sync(iocb, ret); + } } kfree(dio); -- 2.39.2

2 4

[PATCH OLK-5.10] octeontx2-af: avoid off-by-one read from userspace
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Bui Quang Minh <minhquangbui99(a)gmail.com> stable inclusion from stable-v5.10.217 commit bcdac70adceb44373da204c3c297f2a98e13216e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM64 CVE: CVE-2024-36957 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f299ee709fb45036454ca11e90cb2810fe771878 ] We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead. Fixes: 3a2eb515d136 ("octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()") Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com> Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-6-f1f1b53a10f4@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index 24ebcf3d0c9c..0b1fe56eb477 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -420,12 +420,10 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp, u16 pcifunc; int ret, lf; - cmd_buf = memdup_user(buffer, count + 1); + cmd_buf = memdup_user_nul(buffer, count); if (IS_ERR(cmd_buf)) return -ENOMEM; - cmd_buf[count] = '\0'; - cmd_buf_tmp = strchr(cmd_buf, '\n'); if (cmd_buf_tmp) { *cmd_buf_tmp = '\0'; -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] octeontx2-af: avoid off-by-one read from userspace
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Bui Quang Minh <minhquangbui99(a)gmail.com> stable inclusion from stable-v5.10.217 commit bcdac70adceb44373da204c3c297f2a98e13216e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9TM64 CVE: CVE-2024-36957 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit f299ee709fb45036454ca11e90cb2810fe771878 ] We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead. Fixes: 3a2eb515d136 ("octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()") Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com> Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-6-f1f1b53a10f4@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index 5205796859f6..d212bab3ddba 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -420,12 +420,10 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp, u16 pcifunc; int ret, lf; - cmd_buf = memdup_user(buffer, count + 1); + cmd_buf = memdup_user_nul(buffer, count); if (IS_ERR(cmd_buf)) return -ENOMEM; - cmd_buf[count] = '\0'; - cmd_buf_tmp = strchr(cmd_buf, '\n'); if (cmd_buf_tmp) { *cmd_buf_tmp = '\0'; -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++ 1 file changed, 3 insertions(+) -- 2.34.1

2 2

[PATCH OLK-5.10 1/3] iomap: update ki_pos a little later in iomap_dio_complete
by Yang Erkun 06 Jun '24

06 Jun '24

From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v6.4-rc6 commit 936e114a245b6e38e0dbf706a67e7611fc993da1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9VOEK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Move the ki_pos update down a bit to prepare for a better common helper that invalidates pages based of an iocb. Link: https://lkml.kernel.org/r/20230601145904.1385409-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Damien Le Moal <dlemoal(a)kernel.org> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Andreas Gruenbacher <agruenba(a)redhat.com> Cc: Anna Schumaker <anna(a)kernel.org> Cc: Chao Yu <chao(a)kernel.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Ilya Dryomov <idryomov(a)gmail.com> Cc: Jaegeuk Kim <jaegeuk(a)kernel.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Miklos Szeredi <mszeredi(a)redhat.com> Cc: Theodore Ts'o <tytso(a)mit.edu> Cc: Trond Myklebust <trond.myklebust(a)hammerspace.com> Cc: Xiubo Li <xiubli(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Conflicts: fs/iomap/direct-io.c [4fdccaa0d184 ("iomap: Add done_before argument to iomap_dio_rw") not merged] Signed-off-by: Yang Erkun <yangerkun(a)huawei.com> --- fs/iomap/direct-io.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 892a4f8109e5..ad12ffcc5085 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -94,7 +94,6 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) if (offset + ret > dio->i_size && !(dio->flags & IOMAP_DIO_WRITE)) ret = dio->i_size - offset; - iocb->ki_pos += ret; } /* @@ -121,13 +120,17 @@ ssize_t iomap_dio_complete(struct iomap_dio *dio) } inode_dio_end(file_inode(iocb->ki_filp)); - /* - * If this is a DSYNC write, make sure we push it to stable storage now - * that we've written data. - */ - if (ret > 0 && (dio->flags & IOMAP_DIO_NEED_SYNC)) { - WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); - ret = generic_write_sync(iocb, ret); + if (ret > 0) { + iocb->ki_pos += ret; + + /* + * If this is a DSYNC write, make sure we push it to stable + * storage now that we've written data. + */ + if (dio->flags & IOMAP_DIO_NEED_SYNC) { + WARN_ON_ONCE(dio->flags & IOMAP_DIO_INLINE_COMP); + ret = generic_write_sync(iocb, ret); + } } kfree(dio); -- 2.39.2

2 3

[PATCH openEuler-1.0-LTS 0/7] arm64 mpam fix patch
by Yu Liao 06 Jun '24

06 Jun '24

Some bugfix patches to address mpam issues. Yu Liao (7): mpam/resctrl: Fix a deadlock due to inaccurate reference mpam/resctrl: Clean up unused function parameter in mkdir path mpam/resctrl: Clean up resctrl_group_rmdir_[ctrl/mon]() mpam/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup arm64/mpam: change allocation mode from GFP_KERNEL to GFP_NOWAIT arm64/mpam: Fix wrong seconds to jiffies conversion arm64/mpam: Fix softlockup when reading mondata arch/arm64/kernel/mpam/mpam_ctrlmon.c | 3 ++ arch/arm64/kernel/mpam/mpam_resctrl.c | 6 +-- fs/resctrlfs.c | 57 ++++++++++----------------- 3 files changed, 27 insertions(+), 39 deletions(-) -- 2.33.0

2 8

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.34.1

2 2

[PATCH OLK-5.10 0/1] CVE-2024-36914
by Yongqiang Liu 06 Jun '24

06 Jun '24

Alex Hung (1): drm/amd/display: Skip on writeback when it's not applicable drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] ubifs: Set page uptodate in the correct place
by Wang Zhaolong 06 Jun '24

06 Jun '24

From: "Matthew Wilcox (Oracle)" <willy(a)infradead.org> stable inclusion from stable-v5.10.215 commit 8f599ab6fabbca4c741107eade70722a98adfd9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q97O CVE: CVE-2024-35821 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ] Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page. Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Cc: stable(a)vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Signed-off-by: Richard Weinberger <richard(a)nod.at> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: fs/ubifs/file.c [Conflicting patch 3b67db8a6ca8 ("ubifs: Fix to add refcount once page is set private") is not adapted and merged into the current branch.] Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/ubifs/file.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 1b78f2e09218..25f5548cbc45 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -274,9 +274,6 @@ static int write_begin_slow(struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } if (PagePrivate(page)) @@ -475,9 +472,6 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, return err; } } - - SetPageUptodate(page); - ClearPageError(page); } err = allocate_budget(c, page, ui, appending); @@ -487,10 +481,8 @@ static int ubifs_write_begin(struct file *file, struct address_space *mapping, * If we skipped reading the page because we were going to * write all of it, then it is not up to date. */ - if (skipped_read) { + if (skipped_read) ClearPageChecked(page); - ClearPageUptodate(page); - } /* * Budgeting failed which means it would have to force * write-back but didn't, because we set the @fast flag in the @@ -581,6 +573,9 @@ static int ubifs_write_end(struct file *file, struct address_space *mapping, goto out; } + if (len == PAGE_SIZE) + SetPageUptodate(page); + if (!PagePrivate(page)) { SetPagePrivate(page); atomic_long_inc(&c->dirty_pg_cnt); -- 2.34.3

2 1

[PATCH OLK-5.10] net: hns3: fix kernel crash when devlink reload during initialization
by Ye Bin 06 Jun '24

06 Jun '24

From: Yonglong Liu <liuyonglong(a)huawei.com> mainline inclusion from mainline-v6.9 commit 35d92abfbad88cf947c010baf34b075e40566095 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U3H2 CVE: CVE-2024-36900 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The devlink reload process will access the hardware resources, but the register operation is done before the hardware is initialized. So, processing the devlink reload during initialization may lead to kernel crash. This patch fixes this by registering the devlink after hardware initialization. Fixes: cd6242991d2e ("net: hns3: add support for registering devlink for VF") Fixes: 93305b77ffcb ("net: hns3: fix kernel crash when devlink reload during pf initialization") Signed-off-by: Yonglong Liu <liuyonglong(a)huawei.com> Signed-off-by: Jijie Shao <shaojijie(a)huawei.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Conflicts: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c [fix context diff] Signed-off-by: Ye Bin <yebin10(a)huawei.com> --- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 12 +++++------- .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 ++++------ 2 files changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 664c96618a09..e4edc1476e3f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -12526,14 +12526,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) if (ret) goto out; - ret = hclge_devlink_init(hdev); - if (ret) - goto err_pci_uninit; - /* Firmware command queue initialize */ ret = hclge_comm_cmd_queue_init(hdev->pdev, &hdev->hw.hw); if (ret) - goto err_devlink_uninit; + goto err_pci_uninit; /* Firmware command initialize */ hclge_comm_cmd_init_ops(&hdev->hw.hw, &hclge_cmq_ops); @@ -12724,6 +12720,10 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) dev_warn(&pdev->dev, "failed to wake on lan init, ret = %d\n", ret); + ret = hclge_devlink_init(hdev); + if (ret) + goto err_ptp_uninit; + hclge_state_init(hdev); hdev->last_reset_time = jiffies; @@ -12747,8 +12747,6 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev) pci_free_irq_vectors(pdev); err_cmd_uninit: hclge_comm_cmd_uninit(hdev->ae_dev, &hdev->hw.hw); -err_devlink_uninit: - hclge_devlink_uninit(hdev); err_pci_uninit: pcim_iounmap(pdev, hdev->hw.hw.io_base); pci_clear_master(pdev); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index a92daa417af7..e8b61b5f0f88 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -3091,10 +3091,6 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) if (ret) return ret; - ret = hclgevf_devlink_init(hdev); - if (ret) - goto err_devlink_init; - ret = hclge_comm_cmd_queue_init(hdev->pdev, &hdev->hw.hw); if (ret) goto err_cmd_queue_init; @@ -3191,6 +3187,10 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) hclgevf_init_rxd_adv_layout(hdev); + ret = hclgevf_devlink_init(hdev); + if (ret) + goto err_config; + set_bit(HCLGEVF_STATE_SERVICE_INITED, &hdev->state); hdev->last_reset_time = jiffies; @@ -3210,8 +3210,6 @@ static int hclgevf_init_hdev(struct hclgevf_dev *hdev) err_cmd_init: hclge_comm_cmd_uninit(hdev->ae_dev, &hdev->hw.hw); err_cmd_queue_init: - hclgevf_devlink_uninit(hdev); -err_devlink_init: hclgevf_pci_uninit(hdev); clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state); return ret; -- 2.31.1

2 1

[PATCH openEuler-22.03-LTS-SP1] mptcp: ensure snd_nxt is properly initialized on connect
by Guo Mengqi 06 Jun '24

06 Jun '24

From: Paolo Abeni <pabeni(a)redhat.com> stable inclusion from stable-v5.10.218 commit 99951b62bf20cec9247f633a3bea898338b9e5b4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9UBJQ CVE: CVE-2024-36889 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit fb7a0d334894206ae35f023a82cad5a290fd7386 upstream. Christoph reported a splat hinting at a corrupted snd_una: WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK> When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values. We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice. Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time. Fixes: 8fd738049ac3 ("mptcp: fallback in case of simultaneous connect") Cc: stable(a)vger.kernel.org Reported-by: Christoph Paasch <cpaasch(a)apple.com> Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/485 Tested-by: Christoph Paasch <cpaasch(a)apple.com> Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Reviewed-by: Mat Martineau <martineau(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://lore.kernel.org/r/20240429-upstream-net-20240429-mptcp-snd_nxt-init… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> [ snd_nxt field is not available in v5.10.y: before, only write_seq was used, see commit eaa2ffabfc35 ("mptcp: introduce MPTCP snd_nxt") for more details about that. ] Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Guo Mengqi <guomengqi3(a)huawei.com> --- net/mptcp/protocol.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index f0a5d8371228..22ed394295a7 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2648,6 +2648,8 @@ static int mptcp_stream_connect(struct socket *sock, struct sockaddr *uaddr, if (subflow->request_mptcp && mptcp_token_new_connect(ssock->sk)) mptcp_subflow_early_fallback(msk, subflow); + WRITE_ONCE(msk->write_seq, subflow->idsn); + do_connect: err = ssock->ops->connect(ssock, uaddr, addr_len, flags); sock->state = ssock->state; -- 2.17.1

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