- Kernel - mailweb.openeuler.org

[PATCH openEuler-22.03-LTS-SP1 0/2] CVE-2022-48703
by Pu Lehui 25 Jun '24

25 Jun '24

Lee, Chun-Yi (1): thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR Rafael J. Wysocki (1): thermal: int340x_thermal: Consolidate priv->data_vault checks drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 2.34.1

2 3

[PATCH OLK-5.10 0/2] CVE-2022-48703
by Pu Lehui 25 Jun '24

25 Jun '24

Lee, Chun-Yi (1): thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR Rafael J. Wysocki (1): thermal: int340x_thermal: Consolidate priv->data_vault checks drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 2.34.1

2 3

[PATCH OLK-5.10] usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Krishna Kurapati <quic_kriskura(a)quicinc.com> stable inclusion from stable-v5.10.211 commit 57ca0e16f393bb21d69734e536e383a3a4c665fd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8M7 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 76c51146820c5dac629f21deafab0a7039bc3ccd upstream. It is observed sometimes when tethering is used over NCM with Windows 11 as host, at some instances, the gadget_giveback has one byte appended at the end of a proper NTB. When the NTB is parsed, unwrap call looks for any leftover bytes in SKB provided by u_ether and if there are any pending bytes, it treats them as a separate NTB and parses it. But in case the second NTB (as per unwrap call) is faulty/corrupt, all the datagrams that were parsed properly in the first NTB and saved in rx_list are dropped. Adding a few custom traces showed the following: [002] d..1 7828.532866: dwc3_gadget_giveback: ep1out: req 000000003868811a length 1025/16384 zsI ==> 0 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb toprocess: 1025 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb seq: 0xce67 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x400 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb ndp_len: 0x10 [002] d..1 7828.532869: ncm_unwrap_ntb: K: Parsed NTB with 1 frames In this case, the giveback is of 1025 bytes and block length is 1024. The rest 1 byte (which is 0x00) won't be parsed resulting in drop of all datagrams in rx_list. Same is case with packets of size 2048: [002] d..1 7828.557948: dwc3_gadget_giveback: ep1out: req 0000000011dfd96e length 2049/16384 zsI ==> 0 [002] d..1 7828.557949: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.557950: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x800 Lecroy shows one byte coming in extra confirming that the byte is coming in from PC: Transfer 2959 - Bytes Transferred(1025) Timestamp((18.524 843 590) - Transaction 8391 - Data(1025 bytes) Timestamp(18.524 843 590) --- Packet 4063861 Data(1024 bytes) Duration(2.117us) Idle(14.700ns) Timestamp(18.524 843 590) --- Packet 4063863 Data(1 byte) Duration(66.160ns) Time(282.000ns) Timestamp(18.524 845 722) According to Windows driver, no ZLP is needed if wBlockLength is non-zero, because the non-zero wBlockLength has already told the function side the size of transfer to be expected. However, there are in-market NCM devices that rely on ZLP as long as the wBlockLength is multiple of wMaxPacketSize. To deal with such devices, it pads an extra 0 at end so the transfer is no longer multiple of wMaxPacketSize. Cc: <stable(a)vger.kernel.org> Fixes: 9f6ce4240a2b ("usb: gadget: f_ncm.c added") Signed-off-by: Krishna Kurapati <quic_kriskura(a)quicinc.com> Reviewed-by: Maciej Żenczykowski <maze(a)google.com> Link: https://lore.kernel.org/r/20240205074650.200304-1-quic_kriskura@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- drivers/usb/gadget/function/f_ncm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c index d1e36941c924..e3b89b7c1d67 100644 --- a/drivers/usb/gadget/function/f_ncm.c +++ b/drivers/usb/gadget/function/f_ncm.c @@ -1349,7 +1349,15 @@ static int ncm_unwrap_ntb(struct gether *port, "Parsed NTB with %d frames\n", dgram_counter); to_process -= block_len; - if (to_process != 0) { + + /* + * Windows NCM driver avoids USB ZLPs by adding a 1-byte + * zero pad as needed. + */ + if (to_process == 1 && + (*(unsigned char *)(ntb_ptr + block_len) == 0x00)) { + to_process--; + } else if (to_process > 0) { ntb_ptr = (unsigned char *)(ntb_ptr + block_len); goto parse_ntb; } -- 2.17.1

2 1

[PATCH OLK-5.10] fs: Use CHECK_DATA_CORRUPTION() when kernel bugs are detected
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Jann Horn <jannh(a)google.com> mainline inclusion from mainline-v6.3-rc1 commit 47d586913f2abec4d240bae33417f537fda987ec category: performance bugzilla: https://gitee.com/openeuler/kernel/issues/IA5PIS CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Currently, filp_close() and generic_shutdown_super() use printk() to log messages when bugs are detected. This is problematic because infrastructure like syzkaller has no idea that this message indicates a bug. In addition, some people explicitly want their kernels to BUG() when kernel data corruption has been detected (CONFIG_BUG_ON_DATA_CORRUPTION). And finally, when generic_shutdown_super() detects remaining inodes on a system without CONFIG_BUG_ON_DATA_CORRUPTION, it would be nice if later accesses to a busy inode would at least crash somewhat cleanly rather than walking through freed memory. To address all three, use CHECK_DATA_CORRUPTION() when kernel bugs are detected. Signed-off-by: Jann Horn <jannh(a)google.com> Reviewed-by: Christian Brauner (Microsoft) <brauner(a)kernel.org> Reviewed-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Christian Brauner (Microsoft) <brauner(a)kernel.org> Conflicts: include/linux/poison.h Signed-off-by: liwei <liwei728(a)huawei.com> --- fs/open.c | 5 +++-- fs/super.c | 21 +++++++++++++++++---- include/linux/poison.h | 3 +++ 3 files changed, 23 insertions(+), 6 deletions(-) diff --git a/fs/open.c b/fs/open.c index 8092178ceab0..926fd0598935 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1285,8 +1285,9 @@ int filp_close(struct file *filp, fl_owner_t id) { int retval = 0; - if (!file_count(filp)) { - printk(KERN_ERR "VFS: Close: file count is 0\n"); + if (CHECK_DATA_CORRUPTION(file_count(filp) == 0, + "VFS: Close: file count is 0 (f_op=%ps)", + filp->f_op)) { return 0; } diff --git a/fs/super.c b/fs/super.c index db6345634f8b..db46a20da0c8 100644 --- a/fs/super.c +++ b/fs/super.c @@ -465,10 +465,23 @@ void generic_shutdown_super(struct super_block *sb) if (sop->put_super) sop->put_super(sb); - if (!list_empty(&sb->s_inodes)) { - printk("VFS: Busy inodes after unmount of %s. " - "Self-destruct in 5 seconds. Have a nice day...\n", - sb->s_id); + if (CHECK_DATA_CORRUPTION(!list_empty(&sb->s_inodes), + "VFS: Busy inodes after unmount of %s (%s)", + sb->s_id, sb->s_type->name)) { + /* + * Adding a proper bailout path here would be hard, but + * we can at least make it more likely that a later + * iput_final() or such crashes cleanly. + */ + struct inode *inode; + + spin_lock(&sb->s_inode_list_lock); + list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { + inode->i_op = VFS_PTR_POISON; + inode->i_sb = VFS_PTR_POISON; + inode->i_mapping = VFS_PTR_POISON; + } + spin_unlock(&sb->s_inode_list_lock); } } spin_lock(&sb_lock); diff --git a/include/linux/poison.h b/include/linux/poison.h index 028133fb1405..a33190e56035 100644 --- a/include/linux/poison.h +++ b/include/linux/poison.h @@ -85,4 +85,7 @@ /********** net/core/page_pool.c **********/ #define PP_SIGNATURE (0x40 + POISON_POINTER_DELTA) +/********** VFS **********/ +#define VFS_PTR_POISON ((void *)(0xF5 + POISON_POINTER_DELTA)) + #endif -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] RDMA/hns: Fix deadlock on SRQ async events.
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Chengchang Tang <tangchengchang(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit b46494b6f9c19f141114a57729e198698f40af37 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SF1 CVE: CVE-2024-38591 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- xa_lock for SRQ table may be required in AEQ. Use xa_store_irq()/ xa_erase_irq() to avoid deadlock. Fixes: 81fce6291d99 ("RDMA/hns: Add SRQ asynchronous event support") Signed-off-by: Chengchang Tang <tangchengchang(a)huawei.com> Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Link: https://lore.kernel.org/r/20240412091616.370789-5-huangjunxian6@hisilicon.c… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Conflicts: drivers/infiniband/hw/hns/hns_roce_main.c [The conflict occurs because the commit e4df3a25f0fa("[Backport] RDMA/hns: support RoCE bonding") has been merged. It contains hnae3.h] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- drivers/infiniband/hw/hns/hns_roce_srq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 727c7a134102..a3999fc69719 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -122,7 +122,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) return ret; } - ret = xa_err(xa_store(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); + ret = xa_err(xa_store_irq(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); if (ret) { ibdev_err(ibdev, "failed to store SRQC, ret = %d.\n", ret); goto err_put; @@ -135,7 +135,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) return 0; err_xa: - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); err_put: hns_roce_table_put(hr_dev, &srq_table->table, srq->srqn); @@ -153,7 +153,7 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) dev_err(hr_dev->dev, "DESTROY_SRQ failed (%d) for SRQN %06lx\n", ret, srq->srqn); - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); if (refcount_dec_and_test(&srq->refcount)) complete(&srq->free); -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS 0/2] CVE-2021-47434
by Yuan Can 25 Jun '24

25 Jun '24

Mathias Nyman (1): xhci: Fix commad ring abort, write all 64 bits to CRCR register. Pavankumar Kondeti (1): xhci: Fix command ring pointer corruption while aborting a command drivers/usb/host/xhci-ring.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) -- 2.17.1

2 3

[PATCH openEuler-22.03-LTS-SP1] clk: mediatek: clk-mt6779: Add check for mtk_alloc_clk_data
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Jiasheng Jiang <jiasheng(a)iscas.ac.cn> stable inclusion from stable-v5.10.201 commit 3994387ba3564976731179c4d4a6d7850ddda71a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RFZV Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1f57f78fbacf630430bf954e5a84caafdfea30c0 ] Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. Fixes: 710774e04861 ("clk: mediatek: Add MT6779 clock support") Signed-off-by: Jiasheng Jiang <jiasheng(a)iscas.ac.cn> Link: https://lore.kernel.org/r/20230912093407.21505-2-jiasheng@iscas.ac.cn Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Signed-off-by: Stephen Boyd <sboyd(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- drivers/clk/mediatek/clk-mt6779.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/mediatek/clk-mt6779.c b/drivers/clk/mediatek/clk-mt6779.c index 6e0d3a166729..cf720651fc53 100644 --- a/drivers/clk/mediatek/clk-mt6779.c +++ b/drivers/clk/mediatek/clk-mt6779.c @@ -1216,6 +1216,8 @@ static int clk_mt6779_apmixed_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); @@ -1236,6 +1238,8 @@ static int clk_mt6779_top_probe(struct platform_device *pdev) return PTR_ERR(base); clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), clk_data); -- 2.17.1

2 2

[PATCH openEuler-22.03-LTS-SP1] clk: mediatek: clk-mt6779: Add check for mtk_alloc_clk_data
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Jiasheng Jiang <jiasheng(a)iscas.ac.cn> stable inclusion from stable-v5.10.201 commit 3994387ba3564976731179c4d4a6d7850ddda71a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RFZV Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1f57f78fbacf630430bf954e5a84caafdfea30c0 ] Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. Fixes: 710774e04861 ("clk: mediatek: Add MT6779 clock support") Signed-off-by: Jiasheng Jiang <jiasheng(a)iscas.ac.cn> Link: https://lore.kernel.org/r/20230912093407.21505-2-jiasheng@iscas.ac.cn Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Signed-off-by: Stephen Boyd <sboyd(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- drivers/clk/mediatek/clk-mt6779.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/mediatek/clk-mt6779.c b/drivers/clk/mediatek/clk-mt6779.c index 6e0d3a166729..cf720651fc53 100644 --- a/drivers/clk/mediatek/clk-mt6779.c +++ b/drivers/clk/mediatek/clk-mt6779.c @@ -1216,6 +1216,8 @@ static int clk_mt6779_apmixed_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); @@ -1236,6 +1238,8 @@ static int clk_mt6779_top_probe(struct platform_device *pdev) return PTR_ERR(base); clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), clk_data); -- 2.17.1

2 2

[PATCH OLK-5.10] ASoC: SOF: Fix DSP oops stack dump output contents
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Yong Zhi <yong.zhi(a)intel.com> mainline inclusion from mainline-v5.15-rc4 commit ac4dfccb96571ca03af7cac64b7a0b2952c97f3a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4NJ CVE: CVE-2021-47381 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Fix @buf arg given to hex_dump_to_buffer() and stack address used in dump error output. Fixes: e657c18a01c8 ('ASoC: SOF: Add xtensa support') Signed-off-by: Yong Zhi <yong.zhi(a)intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta(a)gmail.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> Link: https://lore.kernel.org/r/20210915063230.29711-1-peter.ujfalusi@linux.intel… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Yuan Can <yuancan(a)huawei.com> --- sound/soc/sof/xtensa/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/xtensa/core.c b/sound/soc/sof/xtensa/core.c index bbb9a2282ed9..f6e3411b33cf 100644 --- a/sound/soc/sof/xtensa/core.c +++ b/sound/soc/sof/xtensa/core.c @@ -122,9 +122,9 @@ static void xtensa_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack, * 0x0049fbb0: 8000f2d0 0049fc00 6f6c6c61 00632e63 */ for (i = 0; i < stack_words; i += 4) { - hex_dump_to_buffer(stack + i * 4, 16, 16, 4, + hex_dump_to_buffer(stack + i, 16, 16, 4, buf, sizeof(buf), false); - dev_err(sdev->dev, "0x%08x: %s\n", stack_ptr + i, buf); + dev_err(sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf); } } -- 2.17.1

2 2

[PATCH openEuler-22.03-LTS-SP1] ASoC: SOF: Fix DSP oops stack dump output contents
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Yong Zhi <yong.zhi(a)intel.com> mainline inclusion from mainline-v5.15-rc4 commit ac4dfccb96571ca03af7cac64b7a0b2952c97f3a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4NJ CVE: CVE-2021-47381 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Fix @buf arg given to hex_dump_to_buffer() and stack address used in dump error output. Fixes: e657c18a01c8 ('ASoC: SOF: Add xtensa support') Signed-off-by: Yong Zhi <yong.zhi(a)intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta(a)gmail.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> Link: https://lore.kernel.org/r/20210915063230.29711-1-peter.ujfalusi@linux.intel… Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Yuan Can <yuancan(a)huawei.com> --- sound/soc/sof/xtensa/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/xtensa/core.c b/sound/soc/sof/xtensa/core.c index bbb9a2282ed9..f6e3411b33cf 100644 --- a/sound/soc/sof/xtensa/core.c +++ b/sound/soc/sof/xtensa/core.c @@ -122,9 +122,9 @@ static void xtensa_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack, * 0x0049fbb0: 8000f2d0 0049fc00 6f6c6c61 00632e63 */ for (i = 0; i < stack_words; i += 4) { - hex_dump_to_buffer(stack + i * 4, 16, 16, 4, + hex_dump_to_buffer(stack + i, 16, 16, 4, buf, sizeof(buf), false); - dev_err(sdev->dev, "0x%08x: %s\n", stack_ptr + i, buf); + dev_err(sdev->dev, "0x%08x: %s\n", stack_ptr + i * 4, buf); } } -- 2.17.1

2 2

[PATCH OLK-5.10] usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Krishna Kurapati <quic_kriskura(a)quicinc.com> stable inclusion from stable-v5.10.211 commit 57ca0e16f393bb21d69734e536e383a3a4c665fd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8M7 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 76c51146820c5dac629f21deafab0a7039bc3ccd upstream. It is observed sometimes when tethering is used over NCM with Windows 11 as host, at some instances, the gadget_giveback has one byte appended at the end of a proper NTB. When the NTB is parsed, unwrap call looks for any leftover bytes in SKB provided by u_ether and if there are any pending bytes, it treats them as a separate NTB and parses it. But in case the second NTB (as per unwrap call) is faulty/corrupt, all the datagrams that were parsed properly in the first NTB and saved in rx_list are dropped. Adding a few custom traces showed the following: [002] d..1 7828.532866: dwc3_gadget_giveback: ep1out: req 000000003868811a length 1025/16384 zsI ==> 0 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb toprocess: 1025 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb seq: 0xce67 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x400 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb ndp_len: 0x10 [002] d..1 7828.532869: ncm_unwrap_ntb: K: Parsed NTB with 1 frames In this case, the giveback is of 1025 bytes and block length is 1024. The rest 1 byte (which is 0x00) won't be parsed resulting in drop of all datagrams in rx_list. Same is case with packets of size 2048: [002] d..1 7828.557948: dwc3_gadget_giveback: ep1out: req 0000000011dfd96e length 2049/16384 zsI ==> 0 [002] d..1 7828.557949: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.557950: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x800 Lecroy shows one byte coming in extra confirming that the byte is coming in from PC: Transfer 2959 - Bytes Transferred(1025) Timestamp((18.524 843 590) - Transaction 8391 - Data(1025 bytes) Timestamp(18.524 843 590) --- Packet 4063861 Data(1024 bytes) Duration(2.117us) Idle(14.700ns) Timestamp(18.524 843 590) --- Packet 4063863 Data(1 byte) Duration(66.160ns) Time(282.000ns) Timestamp(18.524 845 722) According to Windows driver, no ZLP is needed if wBlockLength is non-zero, because the non-zero wBlockLength has already told the function side the size of transfer to be expected. However, there are in-market NCM devices that rely on ZLP as long as the wBlockLength is multiple of wMaxPacketSize. To deal with such devices, it pads an extra 0 at end so the transfer is no longer multiple of wMaxPacketSize. Cc: <stable(a)vger.kernel.org> Fixes: 9f6ce4240a2b ("usb: gadget: f_ncm.c added") Signed-off-by: Krishna Kurapati <quic_kriskura(a)quicinc.com> Reviewed-by: Maciej Żenczykowski <maze(a)google.com> Link: https://lore.kernel.org/r/20240205074650.200304-1-quic_kriskura@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- drivers/usb/gadget/function/f_ncm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c index d1e36941c924..e3b89b7c1d67 100644 --- a/drivers/usb/gadget/function/f_ncm.c +++ b/drivers/usb/gadget/function/f_ncm.c @@ -1349,7 +1349,15 @@ static int ncm_unwrap_ntb(struct gether *port, "Parsed NTB with %d frames\n", dgram_counter); to_process -= block_len; - if (to_process != 0) { + + /* + * Windows NCM driver avoids USB ZLPs by adding a 1-byte + * zero pad as needed. + */ + if (to_process == 1 && + (*(unsigned char *)(ntb_ptr + block_len) == 0x00)) { + to_process--; + } else if (to_process > 0) { ntb_ptr = (unsigned char *)(ntb_ptr + block_len); goto parse_ntb; } -- 2.17.1

2 1

[PATCH OLK-5.10] usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs
by Guo Mengqi 25 Jun '24

25 Jun '24

From: Krishna Kurapati <quic_kriskura(a)quicinc.com> stable inclusion from stable-v5.10.211 commit 57ca0e16f393bb21d69734e536e383a3a4c665fd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q8M7 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 76c51146820c5dac629f21deafab0a7039bc3ccd upstream. It is observed sometimes when tethering is used over NCM with Windows 11 as host, at some instances, the gadget_giveback has one byte appended at the end of a proper NTB. When the NTB is parsed, unwrap call looks for any leftover bytes in SKB provided by u_ether and if there are any pending bytes, it treats them as a separate NTB and parses it. But in case the second NTB (as per unwrap call) is faulty/corrupt, all the datagrams that were parsed properly in the first NTB and saved in rx_list are dropped. Adding a few custom traces showed the following: [002] d..1 7828.532866: dwc3_gadget_giveback: ep1out: req 000000003868811a length 1025/16384 zsI ==> 0 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb toprocess: 1025 [002] d..1 7828.532867: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb seq: 0xce67 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x400 [002] d..1 7828.532868: ncm_unwrap_ntb: K: ncm_unwrap_ntb ndp_len: 0x10 [002] d..1 7828.532869: ncm_unwrap_ntb: K: Parsed NTB with 1 frames In this case, the giveback is of 1025 bytes and block length is 1024. The rest 1 byte (which is 0x00) won't be parsed resulting in drop of all datagrams in rx_list. Same is case with packets of size 2048: [002] d..1 7828.557948: dwc3_gadget_giveback: ep1out: req 0000000011dfd96e length 2049/16384 zsI ==> 0 [002] d..1 7828.557949: ncm_unwrap_ntb: K: ncm_unwrap_ntb nth: 1751999342 [002] d..1 7828.557950: ncm_unwrap_ntb: K: ncm_unwrap_ntb blk_len: 0x800 Lecroy shows one byte coming in extra confirming that the byte is coming in from PC: Transfer 2959 - Bytes Transferred(1025) Timestamp((18.524 843 590) - Transaction 8391 - Data(1025 bytes) Timestamp(18.524 843 590) --- Packet 4063861 Data(1024 bytes) Duration(2.117us) Idle(14.700ns) Timestamp(18.524 843 590) --- Packet 4063863 Data(1 byte) Duration(66.160ns) Time(282.000ns) Timestamp(18.524 845 722) According to Windows driver, no ZLP is needed if wBlockLength is non-zero, because the non-zero wBlockLength has already told the function side the size of transfer to be expected. However, there are in-market NCM devices that rely on ZLP as long as the wBlockLength is multiple of wMaxPacketSize. To deal with such devices, it pads an extra 0 at end so the transfer is no longer multiple of wMaxPacketSize. Cc: <stable(a)vger.kernel.org> Fixes: 9f6ce4240a2b ("usb: gadget: f_ncm.c added") Signed-off-by: Krishna Kurapati <quic_kriskura(a)quicinc.com> Reviewed-by: Maciej Żenczykowski <maze(a)google.com> Link: https://lore.kernel.org/r/20240205074650.200304-1-quic_kriskura@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- drivers/usb/gadget/function/f_ncm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c index d1e36941c924..e3b89b7c1d67 100644 --- a/drivers/usb/gadget/function/f_ncm.c +++ b/drivers/usb/gadget/function/f_ncm.c @@ -1349,7 +1349,15 @@ static int ncm_unwrap_ntb(struct gether *port, "Parsed NTB with %d frames\n", dgram_counter); to_process -= block_len; - if (to_process != 0) { + + /* + * Windows NCM driver avoids USB ZLPs by adding a 1-byte + * zero pad as needed. + */ + if (to_process == 1 && + (*(unsigned char *)(ntb_ptr + block_len) == 0x00)) { + to_process--; + } else if (to_process > 0) { ntb_ptr = (unsigned char *)(ntb_ptr + block_len); goto parse_ntb; } -- 2.17.1

2 1

[PATCH OLK-5.10 v3] block: fix WARNING in init_blk_queue_async_dispatch
by Li Nan 25 Jun '24

25 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA5AEP CVE: NA -------------------------------- WARNING will be triggered when __kmalloc greater than 1 page with GFP_NOFAIL. On system with a large number of cpus, init_blk_queue_async_dispatch() may attempt to allocate memory larger than 1 page, causing the WARING: WARNING: CPU: 4 PID: 1 at mm/page_alloc.c:3485 get_page_from_freelist+0x115c/0x1224 Modules linked in: CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.10.0-212.0.0.112.oe2203sp4.aarch64 #1 Call trace: get_page_from_freelist+0x115c/0x1224 __alloc_pages+0x254/0x11f0 alloc_page_interleave+0x24/0xb0 alloc_pages+0xf0/0x16c kmalloc_order+0x38/0x1c0 kmalloc_order_trace+0x34/0x130 __kmalloc+0x524/0x680 init_blk_queue_async_dispatch+0xe8/0x160 blk_dev_init+0xa8/0xd0 genhd_device_init+0x64/0xb4 do_one_initcall+0x50/0x2a0 do_initcall_level+0xe4/0x110 do_initcalls+0x80/0xb8 kernel_init_freeable+0x1c8/0x254 kernel_init+0x1c/0x144 ret_from_fork+0x10/0x18 Fix it by removing flag GFP_NOFAIL and panic kernel if allocation fails. Fixes: 204f600cbb0c ("block: support to dispatch bio asynchronously") Signed-off-by: Li Nan <linan122(a)huawei.com> --- v3: Add fix tag. block/blk-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index e3e2659d0673..bf3bfc3ed339 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -285,7 +285,9 @@ static void init_blk_queue_async_dispatch(void) init_waitqueue_head(&ctl->wait); ctl->bios = kmalloc_array(nr_cpu_ids, sizeof(struct async_bio), - GFP_KERNEL | __GFP_NOFAIL); + GFP_KERNEL); + if (!ctl->bios) + panic("Failed to alloc async bio array\n"); for (i = 0; i < nr_cpu_ids; ++i) { bio_list_init(&ctl->bios[i].list); spin_lock_init(&ctl->bios[i].lock); -- 2.39.2

2 1

[PATCH OLK-5.10] xfs: atomic write file dio convert to mark IOCB_ATOMIC
by Long Li 25 Jun '24

25 Jun '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9VTE3 CVE: NA -------------------------------- Add mount option "atomicalways", If the file support atomic write, while the user initiates a direct I/O write, convert the write to atomic write, it makes database like Mysql could use atomic write without any other more modify. This also causes some direct writes (such as offset misalignment and invalid length) to the files which with atomic write enabled to return fails. Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/xfs/xfs_file.c | 4 ++++ fs/xfs/xfs_mount.h | 2 ++ fs/xfs/xfs_super.c | 6 +++++- 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 49db1611de96..75928200d7e9 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -814,6 +814,10 @@ xfs_file_write_iter( return xfs_file_dax_write(iocb, from); if (iocb->ki_flags & IOCB_DIRECT) { + + if (xfs_inode_atomicwrites(ip) && + xfs_has_atomicalways(ip->i_mount)) + iocb->ki_flags |= IOCB_ATOMIC; /* * Allow a directio write to fall back to a buffered * write *only* in the case that we're doing a reflink diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 888d6bf9bea7..6b952ff031b6 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -279,6 +279,7 @@ typedef struct xfs_mount { /* Mount features */ +#define XFS_FEAT_ATOMICALWAYS (1ULL << 47) /* convert dio to atomic writes always */ #define XFS_FEAT_NOATTR2 (1ULL << 48) /* disable attr2 creation */ #define XFS_FEAT_NOALIGN (1ULL << 49) /* ignore alignment */ #define XFS_FEAT_ALLOCSIZE (1ULL << 50) /* user specified allocation size */ @@ -365,6 +366,7 @@ __XFS_HAS_FEAT(dax_always, DAX_ALWAYS) __XFS_HAS_FEAT(dax_never, DAX_NEVER) __XFS_HAS_FEAT(norecovery, NORECOVERY) __XFS_HAS_FEAT(nouuid, NOUUID) +__XFS_HAS_FEAT(atomicalways, ATOMICALWAYS) /* * Operational mount state flags diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index d43f76a4b99a..0359713fefd8 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -116,7 +116,7 @@ enum { Opt_filestreams, Opt_quota, Opt_noquota, Opt_usrquota, Opt_grpquota, Opt_prjquota, Opt_uquota, Opt_gquota, Opt_pquota, Opt_uqnoenforce, Opt_gqnoenforce, Opt_pqnoenforce, Opt_qnoenforce, - Opt_discard, Opt_nodiscard, Opt_dax, Opt_dax_enum, + Opt_discard, Opt_nodiscard, Opt_dax, Opt_dax_enum, Opt_atomicalways, }; static const struct fs_parameter_spec xfs_fs_parameters[] = { @@ -161,6 +161,7 @@ static const struct fs_parameter_spec xfs_fs_parameters[] = { fsparam_flag("nodiscard", Opt_nodiscard), fsparam_flag("dax", Opt_dax), fsparam_enum("dax", Opt_dax_enum, dax_param_enums), + fsparam_flag("atomicalways", Opt_atomicalways), {} }; @@ -1361,6 +1362,9 @@ xfs_fc_parse_param( xfs_fs_warn_deprecated(fc, param, XFS_FEAT_NOATTR2, true); parsing_mp->m_features |= XFS_FEAT_NOATTR2; return 0; + case Opt_atomicalways: + parsing_mp->m_features |= XFS_FEAT_ATOMICALWAYS; + return 0; default: xfs_warn(parsing_mp, "unknown mount option [%s].", param->key); return -EINVAL; -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS] mm/migrate: set swap entry values of THP tail pages properly.
by Liu Shixin 25 Jun '24

25 Jun '24

From: Zi Yan <ziy(a)nvidia.com> stable inclusion from stable-v4.19.312 commit 9e92cefdaa7537515dc0ff6cc73d46fa31b062fc category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA82S5 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- The tail pages in a THP can have swap entry information stored in their private field. When migrating to a new page, all tail pages of the new page need to update ->private to avoid future data corruption. This fix is stable-only, since after commit 07e09c483cbe ("mm/huge_memory: work on folio->swap instead of page->private when splitting folio"), subpages of a swapcached THP no longer requires the maintenance. Adding THPs to the swapcache was introduced in commit 38d8b4e6bdc87 ("mm, THP, swap: delay splitting THP during swap out"), where each subpage of a THP added to the swapcache had its own swapcache entry and required the ->private field to point to the correct swapcache entry. Later, when THP migration functionality was implemented in commit 616b8371539a6 ("mm: thp: enable thp migration in generic path"), it initially did not handle the subpages of swapcached THPs, failing to update their ->private fields or replace the subpage pointers in the swapcache. Subsequently, commit e71769ae5260 ("mm: enable thp migration for shmem thp") addressed the swapcache update aspect. This patch fixes the update of subpage ->private fields. Closes: https://lore.kernel.org/linux-mm/1707814102-22682-1-git-send-email-quic_cha… Fixes: 616b8371539a ("mm: thp: enable thp migration in generic path") Signed-off-by: Zi Yan <ziy(a)nvidia.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- mm/migrate.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index dbe174f86cfd..f8c379a0b9b9 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -515,8 +515,12 @@ int migrate_page_move_mapping(struct address_space *mapping, if (PageSwapBacked(page)) { __SetPageSwapBacked(newpage); if (PageSwapCache(page)) { + int i; + SetPageSwapCache(newpage); - set_page_private(newpage, page_private(page)); + for (i = 0; i < (1 << compound_order(page)); i++) + set_page_private(newpage + i, + page_private(page + i)); } } else { VM_BUG_ON_PAGE(PageSwapCache(page), page); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-38587
by Chen Ridong 25 Jun '24

25 Jun '24

*** BLURB HERE *** Dan Carpenter (1): speakup: Fix sizeof() vs ARRAY_SIZE() bug drivers/staging/speakup/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-38587
by Chen Ridong 25 Jun '24

25 Jun '24

*** BLURB HERE *** Dan Carpenter (1): speakup: Fix sizeof() vs ARRAY_SIZE() bug drivers/staging/speakup/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-6.6] mm: drop the 'anon_' prefix for swap-out mTHP counters
by Liu Shixin 25 Jun '24

25 Jun '24

From: Baolin Wang <baolin.wang(a)linux.alibaba.com> mainline inclusion from mainline-v6.10-rc3 commit 0d648dd5c899f33154b98a6aef6e3dab0f4de613 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7H2V CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The mTHP swap related counters: 'anon_swpout' and 'anon_swpout_fallback' are confusing with an 'anon_' prefix, since the shmem can swap out non-anonymous pages. So drop the 'anon_' prefix to keep consistent with the old swap counter names. This is needed in 6.10-rcX to avoid having an inconsistent ABI out in the field. Link: https://lkml.kernel.org/r/7a8989c13299920d7589007a30065c3e2c19f0e0.17164317… Fixes: d0f048ac39f6 ("mm: add per-order mTHP anon_swpout and anon_swpout_fallback counters") Fixes: 42248b9d34ea ("mm: add docs for per-order mTHP counters and transhuge_page ABI") Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Suggested-by: "Huang, Ying" <ying.huang(a)intel.com> Acked-by: Barry Song <baohua(a)kernel.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Lance Yang <ioworker0(a)gmail.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Zi Yan <ziy(a)nvidia.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- Documentation/admin-guide/mm/transhuge.rst | 4 ++-- include/linux/huge_mm.h | 4 ++-- mm/huge_memory.c | 8 ++++---- mm/page_io.c | 2 +- mm/vmscan.c | 2 +- 5 files changed, 10 insertions(+), 10 deletions(-) diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst index e66d1d7ee711..f9d692f049f6 100644 --- a/Documentation/admin-guide/mm/transhuge.rst +++ b/Documentation/admin-guide/mm/transhuge.rst @@ -496,11 +496,11 @@ anon_fault_fallback_charge instead falls back to using huge pages with lower orders or small pages even though the allocation was successful. -anon_swpout +swpout is incremented every time a huge page is swapped out in one piece without splitting. -anon_swpout_fallback +swpout_fallback is incremented if a huge page has to be split before swapout. Usually because failed to allocate some continuous swap space for the huge page. diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 18f7cfb7fca4..0da01df3b283 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -267,8 +267,8 @@ enum mthp_stat_item { MTHP_STAT_ANON_FAULT_ALLOC, MTHP_STAT_ANON_FAULT_FALLBACK, MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE, - MTHP_STAT_ANON_SWPOUT, - MTHP_STAT_ANON_SWPOUT_FALLBACK, + MTHP_STAT_SWPOUT, + MTHP_STAT_SWPOUT_FALLBACK, __MTHP_STAT_COUNT }; diff --git a/mm/huge_memory.c b/mm/huge_memory.c index a6f087186630..32ddf09db52b 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -701,15 +701,15 @@ static struct kobj_attribute _name##_attr = __ATTR_RO(_name) DEFINE_MTHP_STAT_ATTR(anon_fault_alloc, MTHP_STAT_ANON_FAULT_ALLOC); DEFINE_MTHP_STAT_ATTR(anon_fault_fallback, MTHP_STAT_ANON_FAULT_FALLBACK); DEFINE_MTHP_STAT_ATTR(anon_fault_fallback_charge, MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE); -DEFINE_MTHP_STAT_ATTR(anon_swpout, MTHP_STAT_ANON_SWPOUT); -DEFINE_MTHP_STAT_ATTR(anon_swpout_fallback, MTHP_STAT_ANON_SWPOUT_FALLBACK); +DEFINE_MTHP_STAT_ATTR(swpout, MTHP_STAT_SWPOUT); +DEFINE_MTHP_STAT_ATTR(swpout_fallback, MTHP_STAT_SWPOUT_FALLBACK); static struct attribute *stats_attrs[] = { &anon_fault_alloc_attr.attr, &anon_fault_fallback_attr.attr, &anon_fault_fallback_charge_attr.attr, - &anon_swpout_attr.attr, - &anon_swpout_fallback_attr.attr, + &swpout_attr.attr, + &swpout_fallback_attr.attr, NULL, }; diff --git a/mm/page_io.c b/mm/page_io.c index 80e49e536d37..f2b3c4eed688 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -212,7 +212,7 @@ static inline void count_swpout_vm_event(struct folio *folio) count_memcg_folio_events(folio, THP_SWPOUT, 1); count_vm_event(THP_SWPOUT); } - count_mthp_stat(folio_order(folio), MTHP_STAT_ANON_SWPOUT); + count_mthp_stat(folio_order(folio), MTHP_STAT_SWPOUT); #endif count_vm_events(PSWPOUT, folio_nr_pages(folio)); } diff --git a/mm/vmscan.c b/mm/vmscan.c index 44154c63ec6c..424652601c56 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1925,7 +1925,7 @@ static unsigned int shrink_folio_list(struct list_head *folio_list, THP_SWPOUT_FALLBACK, 1); count_vm_event(THP_SWPOUT_FALLBACK); } - count_mthp_stat(order, MTHP_STAT_ANON_SWPOUT_FALLBACK); + count_mthp_stat(order, MTHP_STAT_SWPOUT_FALLBACK); #endif if (!add_to_swap(folio)) goto activate_locked_split; -- 2.25.1

2 1

[PATCH OLK-6.6 0/1] vfio/pci: fix potential memory leak in vfio_intx_enable()
by Huang Xiaojia 25 Jun '24

25 Jun '24

*** BLURB HERE *** Ye Bin (1): vfio/pci: fix potential memory leak in vfio_intx_enable() drivers/vfio/pci/vfio_pci_intrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10 v2] block: fix WARNING in init_blk_queue_async_dispatch
by Li Nan 25 Jun '24

25 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA5AEP CVE: NA -------------------------------- WARNING will be triggered when __kmalloc greater than 1 page with GFP_NOFAIL. On system with a large number of cpus, init_blk_queue_async_dispatch() may attempt to allocate memory larger than 1 page, causing the WARING: WARNING: CPU: 4 PID: 1 at mm/page_alloc.c:3485 get_page_from_freelist+0x115c/0x1224 Modules linked in: CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.10.0-212.0.0.112.oe2203sp4.aarch64 #1 Call trace: get_page_from_freelist+0x115c/0x1224 __alloc_pages+0x254/0x11f0 alloc_page_interleave+0x24/0xb0 alloc_pages+0xf0/0x16c kmalloc_order+0x38/0x1c0 kmalloc_order_trace+0x34/0x130 __kmalloc+0x524/0x680 init_blk_queue_async_dispatch+0xe8/0x160 blk_dev_init+0xa8/0xd0 genhd_device_init+0x64/0xb4 do_one_initcall+0x50/0x2a0 do_initcall_level+0xe4/0x110 do_initcalls+0x80/0xb8 kernel_init_freeable+0x1c8/0x254 kernel_init+0x1c/0x144 ret_from_fork+0x10/0x18 Fix it by removing flag GFP_NOFAIL and panic kernel if allocation fails. Signed-off-by: Li Nan <linan122(a)huawei.com> --- v2: Use panic instead of BUG_ON. Add patch head. block/blk-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index e3e2659d0673..bf3bfc3ed339 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -285,7 +285,9 @@ static void init_blk_queue_async_dispatch(void) init_waitqueue_head(&ctl->wait); ctl->bios = kmalloc_array(nr_cpu_ids, sizeof(struct async_bio), - GFP_KERNEL | __GFP_NOFAIL); + GFP_KERNEL); + if (!ctl->bios) + panic("Failed to alloc async bio array\n"); for (i = 0; i < nr_cpu_ids; ++i) { bio_list_init(&ctl->bios[i].list); spin_lock_init(&ctl->bios[i].lock); -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1] kprobes: Fix possible use-after-free issue on kprobe registration
by Chen Zhongjin 25 Jun '24

25 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> stable inclusion from stable-v5.10.216 commit 5062d1f4f07facbdade0f402d9a04a788f52e26d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRI5 CVE: CVE-2024-35955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 upstream. When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE. Link: https://lore.kernel.org/all/20240410015802.265220-1-zhengyejian1@huawei.com/ Fixes: 28f6c37a2910 ("kprobes: Forbid probing on trampoline and BPF code areas") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> [Fix conflict due to lack dependency commit 223a76b268c9 ("kprobes: Fix coding style issues")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- kernel/kprobes.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index de4f8899ec3b..4548dec331ff 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1639,10 +1639,17 @@ static int check_kprobe_address_safe(struct kprobe *p, jump_label_lock(); preempt_disable(); - /* Ensure it is not in reserved area nor out of text */ - if (!(core_kernel_text((unsigned long) p->addr) || - is_module_text_address((unsigned long) p->addr)) || - in_gate_area_no_mm((unsigned long) p->addr) || + /* Ensure the address is in a text area, and find a module if exists. */ + *probed_mod = NULL; + if (!core_kernel_text((unsigned long) p->addr)) { + *probed_mod = __module_text_address((unsigned long) p->addr); + if (!(*probed_mod)) { + ret = -EINVAL; + goto out; + } + } + /* Ensure it is not in reserved area. */ + if (in_gate_area_no_mm((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || static_call_text_reserved(p->addr, p->addr) || @@ -1651,8 +1658,7 @@ static int check_kprobe_address_safe(struct kprobe *p, goto out; } - /* Check if are we probing a module */ - *probed_mod = __module_text_address((unsigned long) p->addr); + /* Get module refcount and reject __init functions for loaded modules. */ if (*probed_mod) { /* * We must hold a refcount of the probed module while updating -- 2.25.1

2 1

[PATCH OLK-6.6 0/1] Fix CVE-2024-31076
by Hongbo Li 25 Jun '24

25 Jun '24

Fix CVE-2024-31076. Dongli Zhang (1): genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline arch/x86/kernel/apic/vector.c | 9 ++++++--- kernel/irq/cpuhotplug.c | 16 ++++++++-------- 2 files changed, 14 insertions(+), 11 deletions(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 25 Jun '24

25 Jun '24

From: Justin Green <greenjustin(a)chromium.org> stable inclusion from stable-v4.19.316 commit 79078880795478d551a05acc41f957700030d364 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 ] Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index b09a37a38e0a..079df67892df 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -26,6 +26,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH] mm: drop the 'anon_' prefix for swap-out mTHP counters
by Liu Shixin 25 Jun '24

25 Jun '24

From: Baolin Wang <baolin.wang(a)linux.alibaba.com> mainline inclusion from mainline-v6.10-rc3 commit 0d648dd5c899f33154b98a6aef6e3dab0f4de613 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7H2V CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The mTHP swap related counters: 'anon_swpout' and 'anon_swpout_fallback' are confusing with an 'anon_' prefix, since the shmem can swap out non-anonymous pages. So drop the 'anon_' prefix to keep consistent with the old swap counter names. This is needed in 6.10-rcX to avoid having an inconsistent ABI out in the field. Link: https://lkml.kernel.org/r/7a8989c13299920d7589007a30065c3e2c19f0e0.17164317… Fixes: d0f048ac39f6 ("mm: add per-order mTHP anon_swpout and anon_swpout_fallback counters") Fixes: 42248b9d34ea ("mm: add docs for per-order mTHP counters and transhuge_page ABI") Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Suggested-by: "Huang, Ying" <ying.huang(a)intel.com> Acked-by: Barry Song <baohua(a)kernel.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Lance Yang <ioworker0(a)gmail.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Zi Yan <ziy(a)nvidia.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> --- Documentation/admin-guide/mm/transhuge.rst | 4 ++-- include/linux/huge_mm.h | 4 ++-- mm/huge_memory.c | 8 ++++---- mm/page_io.c | 2 +- mm/vmscan.c | 2 +- 5 files changed, 10 insertions(+), 10 deletions(-) diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst index e66d1d7ee711..f9d692f049f6 100644 --- a/Documentation/admin-guide/mm/transhuge.rst +++ b/Documentation/admin-guide/mm/transhuge.rst @@ -496,11 +496,11 @@ anon_fault_fallback_charge instead falls back to using huge pages with lower orders or small pages even though the allocation was successful. -anon_swpout +swpout is incremented every time a huge page is swapped out in one piece without splitting. -anon_swpout_fallback +swpout_fallback is incremented if a huge page has to be split before swapout. Usually because failed to allocate some continuous swap space for the huge page. diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 18f7cfb7fca4..0da01df3b283 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -267,8 +267,8 @@ enum mthp_stat_item { MTHP_STAT_ANON_FAULT_ALLOC, MTHP_STAT_ANON_FAULT_FALLBACK, MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE, - MTHP_STAT_ANON_SWPOUT, - MTHP_STAT_ANON_SWPOUT_FALLBACK, + MTHP_STAT_SWPOUT, + MTHP_STAT_SWPOUT_FALLBACK, __MTHP_STAT_COUNT }; diff --git a/mm/huge_memory.c b/mm/huge_memory.c index a6f087186630..32ddf09db52b 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -701,15 +701,15 @@ static struct kobj_attribute _name##_attr = __ATTR_RO(_name) DEFINE_MTHP_STAT_ATTR(anon_fault_alloc, MTHP_STAT_ANON_FAULT_ALLOC); DEFINE_MTHP_STAT_ATTR(anon_fault_fallback, MTHP_STAT_ANON_FAULT_FALLBACK); DEFINE_MTHP_STAT_ATTR(anon_fault_fallback_charge, MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE); -DEFINE_MTHP_STAT_ATTR(anon_swpout, MTHP_STAT_ANON_SWPOUT); -DEFINE_MTHP_STAT_ATTR(anon_swpout_fallback, MTHP_STAT_ANON_SWPOUT_FALLBACK); +DEFINE_MTHP_STAT_ATTR(swpout, MTHP_STAT_SWPOUT); +DEFINE_MTHP_STAT_ATTR(swpout_fallback, MTHP_STAT_SWPOUT_FALLBACK); static struct attribute *stats_attrs[] = { &anon_fault_alloc_attr.attr, &anon_fault_fallback_attr.attr, &anon_fault_fallback_charge_attr.attr, - &anon_swpout_attr.attr, - &anon_swpout_fallback_attr.attr, + &swpout_attr.attr, + &swpout_fallback_attr.attr, NULL, }; diff --git a/mm/page_io.c b/mm/page_io.c index 80e49e536d37..f2b3c4eed688 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -212,7 +212,7 @@ static inline void count_swpout_vm_event(struct folio *folio) count_memcg_folio_events(folio, THP_SWPOUT, 1); count_vm_event(THP_SWPOUT); } - count_mthp_stat(folio_order(folio), MTHP_STAT_ANON_SWPOUT); + count_mthp_stat(folio_order(folio), MTHP_STAT_SWPOUT); #endif count_vm_events(PSWPOUT, folio_nr_pages(folio)); } diff --git a/mm/vmscan.c b/mm/vmscan.c index 44154c63ec6c..424652601c56 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1925,7 +1925,7 @@ static unsigned int shrink_folio_list(struct list_head *folio_list, THP_SWPOUT_FALLBACK, 1); count_vm_event(THP_SWPOUT_FALLBACK); } - count_mthp_stat(order, MTHP_STAT_ANON_SWPOUT_FALLBACK); + count_mthp_stat(order, MTHP_STAT_SWPOUT_FALLBACK); #endif if (!add_to_swap(folio)) goto activate_locked_split; -- 2.25.1

1 0

[PATCH OLK-5.10] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 25 Jun '24

25 Jun '24

From: Justin Green <greenjustin(a)chromium.org> stable inclusion from stable-v5.10.219 commit d17b75ee9c2e44d3a3682c4ea5ab713ea6073350 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- [ Upstream commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 ] Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index b20ea58907c2..1dac9cd20d46 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -21,6 +21,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] drm/arm/malidp: fix a possible null pointer dereference
by Chen Zhongjin 25 Jun '24

25 Jun '24

From: Huai-Yuan Liu <qq810974084(a)gmail.com> stable inclusion from stable-v4.19.316 commit b6cc5dd06336ed8bb3a7a1fc5aaf7d5e88bc0818 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9T5PA CVE: CVE-2024-36014 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit a1f95aede6285dba6dd036d907196f35ae3a11ea ] In malidp_mw_connector_reset, new memory is allocated with kzalloc, but no check is performed. In order to prevent null pointer dereferencing, ensure that mw_state is checked before calling __drm_atomic_helper_connector_reset. Fixes: 8cbc5caf36ef ("drm: mali-dp: Add writeback connector") Signed-off-by: Huai-Yuan Liu <qq810974084(a)gmail.com> Signed-off-by: Liviu Dudau <liviu.dudau(a)arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240407063053.5481-1-qq81097… Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- drivers/gpu/drm/arm/malidp_mw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c index 91472e5e0c8b..cc27ac25372f 100644 --- a/drivers/gpu/drm/arm/malidp_mw.c +++ b/drivers/gpu/drm/arm/malidp_mw.c @@ -69,7 +69,10 @@ static void malidp_mw_connector_reset(struct drm_connector *connector) __drm_atomic_helper_connector_destroy_state(connector->state); kfree(connector->state); - __drm_atomic_helper_connector_reset(connector, &mw_state->base); + connector->state = NULL; + + if (mw_state) + __drm_atomic_helper_connector_reset(connector, &mw_state->base); } static enum drm_connector_status -- 2.25.1

2 1

[PATCH OLK-5.10] block: fix WARNING in init_blk_queue_async_dispatch
by Li Nan 25 Jun '24

25 Jun '24

WARNING will be triggered when __kmalloc greater than 1 page with GFP_NOFAIL. On system with a large number of cpus, init_blk_queue_async_dispatch() may attempt to allocate memory larger than 1 page, causing the WARING: ------------[ cut here ]------------ WARNING: CPU: 4 PID: 1 at mm/page_alloc.c:3485 get_page_from_freelist+0x115c/0x1224 Modules linked in: CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.10.0-212.0.0.112.oe2203sp4.aarch64 #1 Call trace: get_page_from_freelist+0x115c/0x1224 __alloc_pages+0x254/0x11f0 alloc_page_interleave+0x24/0xb0 alloc_pages+0xf0/0x16c kmalloc_order+0x38/0x1c0 kmalloc_order_trace+0x34/0x130 __kmalloc+0x524/0x680 init_blk_queue_async_dispatch+0xe8/0x160 blk_dev_init+0xa8/0xd0 genhd_device_init+0x64/0xb4 do_one_initcall+0x50/0x2a0 do_initcall_level+0xe4/0x110 do_initcalls+0x80/0xb8 kernel_init_freeable+0x1c8/0x254 kernel_init+0x1c/0x144 ret_from_fork+0x10/0x18 ---[ end trace 5fed5af9086c724c ]--- Fix it by removing flag GFP_NOFAIL and panic kernel if allocation fails. Signed-off-by: Li Nan <linan122(a)huawei.com> --- block/blk-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index e3e2659d0673..95f7d796482b 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -285,7 +285,8 @@ static void init_blk_queue_async_dispatch(void) init_waitqueue_head(&ctl->wait); ctl->bios = kmalloc_array(nr_cpu_ids, sizeof(struct async_bio), - GFP_KERNEL | __GFP_NOFAIL); + GFP_KERNEL); + BUG_ON(!ctl->bios); for (i = 0; i < nr_cpu_ids; ++i) { bio_list_init(&ctl->bios[i].list); spin_lock_init(&ctl->bios[i].lock); -- 2.39.2

2 1

[PATCH OLK-6.6] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 25 Jun '24

25 Jun '24

From: Justin Green <greenjustin(a)chromium.org> stable inclusion from stable-v6.6.33 commit af26ea99019caee1500bf7e60c861136c0bf8594 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 ] Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 4f2e3feabc0f..1bf229615b01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -38,6 +38,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] kprobes: Fix possible use-after-free issue on kprobe registration
by Chen Zhongjin 25 Jun '24

25 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> stable inclusion from stable-v5.10.216 commit 5062d1f4f07facbdade0f402d9a04a788f52e26d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRI5 CVE: CVE-2024-35955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 upstream. When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE. Link: https://lore.kernel.org/all/20240410015802.265220-1-zhengyejian1@huawei.com/ Fixes: 28f6c37a2910 ("kprobes: Forbid probing on trampoline and BPF code areas") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> [Fix conflict due to lack dependency commit 223a76b268c9 ("kprobes: Fix coding style issues")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: kernel/kprobes.c [This conflict because dependency commit 1efda38d6f9b ("kprobes: Prohibit probes in gate area") not merged] Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- kernel/kprobes.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 0990b9a5e47c..1a94cbc4572e 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1639,9 +1639,17 @@ static int check_kprobe_address_safe(struct kprobe *p, jump_label_lock(); preempt_disable(); - /* Ensure it is not in reserved area nor out of text */ - if (!(core_kernel_text((unsigned long) p->addr) || - is_module_text_address((unsigned long) p->addr)) || + /* Ensure the address is in a text area, and find a module if exists. */ + *probed_mod = NULL; + if (!core_kernel_text((unsigned long) p->addr)) { + *probed_mod = __module_text_address((unsigned long) p->addr); + if (!(*probed_mod)) { + ret = -EINVAL; + goto out; + } + } + /* Ensure it is not in reserved area. */ + if (in_gate_area_no_mm((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || static_call_text_reserved(p->addr, p->addr) || @@ -1650,8 +1658,7 @@ static int check_kprobe_address_safe(struct kprobe *p, goto out; } - /* Check if are we probing a module */ - *probed_mod = __module_text_address((unsigned long) p->addr); + /* Get module refcount and reject __init functions for loaded modules. */ if (*probed_mod) { /* * We must hold a refcount of the probed module while updating -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 25 Jun '24

25 Jun '24

From: Justin Green <greenjustin(a)chromium.org> stable inclusion from -v4.19.316 commit 79078880795478d551a05acc41f957700030d364 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 ] Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index b09a37a38e0a..079df67892df 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -26,6 +26,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/1] Fix CVE-2024-31076
by Hongbo Li 25 Jun '24

25 Jun '24

Fix CVE-2024-31076. Dongli Zhang (1): genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline arch/x86/kernel/apic/vector.c | 9 ++++++--- kernel/irq/cpuhotplug.c | 16 ++++++++-------- 2 files changed, 14 insertions(+), 11 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6] fs/ntfs3: Use variable length array instead of fixed size
by Long Li 25 Jun '24

25 Jun '24

From: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> mainline inclusion from mainline-v6.9-rc4 commit 1997cdc3e727526aa5d84b32f7cbb3f56459b7ef category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D5A CVE: CVE-2024-38623 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Should fix smatch warning: ntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256) Fixes: 4534a70b7056f ("fs/ntfs3: Add headers and misc files") Reported-by: kernel test robot <lkp(a)intel.com> Reported-by: Dan Carpenter <dan.carpenter(a)linaro.org> Closes: https://lore.kernel.org/r/202401091421.3RJ24Mn3-lkp@intel.com/ Signed-off-by: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/ntfs3/ntfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h index f61f5b3adb03..b70288cc5f6f 100644 --- a/fs/ntfs3/ntfs.h +++ b/fs/ntfs3/ntfs.h @@ -59,7 +59,7 @@ struct GUID { struct cpu_str { u8 len; u8 unused; - u16 name[10]; + u16 name[]; }; struct le_str { -- 2.39.2

2 1

[PATCH OLK-5.10 0/1] Fix CVE-2024-31076
by Hongbo Li 25 Jun '24

25 Jun '24

Fix CVE-2024-31076. Dongli Zhang (1): genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline arch/x86/kernel/apic/vector.c | 9 ++++++--- kernel/irq/cpuhotplug.c | 16 ++++++++-------- 2 files changed, 14 insertions(+), 11 deletions(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS 0/1] Fix CVE-2024-31076
by Hongbo Li 25 Jun '24

25 Jun '24

Backport CVE-2024-31076. Dongli Zhang (1): genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline arch/x86/kernel/apic/vector.c | 9 ++++++--- kernel/irq/cpuhotplug.c | 16 ++++++++-------- 2 files changed, 14 insertions(+), 11 deletions(-) -- 2.34.1

2 2

[PATCH OLK-6.6] tracing/probes: fix error check in parse_btf_field()
by Zheng Yejian 25 Jun '24

25 Jun '24

From: Carlos López <clopez(a)suse.de> stable inclusion from stable-v6.6.33 commit ad4b202da2c498fefb69e5d87f67b946e7fe1e6a bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7DBJ CVE: CVE-2024-36481 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit e569eb34970281438e2b48a3ef11c87459fcfbcb ] btf_find_struct_member() might return NULL or an error via the ERR_PTR() macro. However, its caller in parse_btf_field() only checks for the NULL condition. Fix this by using IS_ERR() and returning the error up the stack. Link: https://lore.kernel.org/all/20240527094351.15687-1-clopez@suse.de/ Fixes: c440adfbe3025 ("tracing/probes: Support BTF based data structure field access") Signed-off-by: Carlos López <clopez(a)suse.de> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/trace_probe.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 34289f9c6707..ae162ba36a48 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -553,6 +553,10 @@ static int parse_btf_field(char *fieldname, const struct btf_type *type, anon_offs = 0; field = btf_find_struct_member(ctx->btf, type, fieldname, &anon_offs); + if (IS_ERR(field)) { + trace_probe_log_err(ctx->offset, BAD_BTF_TID); + return PTR_ERR(field); + } if (!field) { trace_probe_log_err(ctx->offset, NO_BTF_FIELD); return -ENOENT; -- 2.25.1

2 1

[openEuler-22.03-LTS-SP1] kprobes: Fix possible use-after-free issue on kprobe registration
by Chen Zhongjin 25 Jun '24

25 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> stable inclusion from stable-v5.10.216 commit 5062d1f4f07facbdade0f402d9a04a788f52e26d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRI5 CVE: CVE-2024-35955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 upstream. When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE. Link: https://lore.kernel.org/all/20240410015802.265220-1-zhengyejian1@huawei.com/ Fixes: 28f6c37a2910 ("kprobes: Forbid probing on trampoline and BPF code areas") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> [Fix conflict due to lack dependency commit 223a76b268c9 ("kprobes: Fix coding style issues")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: kernel/kprobes.c [This conflict because dependency commit 1efda38d6f9b ("kprobes: Prohibit probes in gate area") not merged] Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- kernel/kprobes.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 0990b9a5e47c..1a94cbc4572e 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1639,9 +1639,17 @@ static int check_kprobe_address_safe(struct kprobe *p, jump_label_lock(); preempt_disable(); - /* Ensure it is not in reserved area nor out of text */ - if (!(core_kernel_text((unsigned long) p->addr) || - is_module_text_address((unsigned long) p->addr)) || + /* Ensure the address is in a text area, and find a module if exists. */ + *probed_mod = NULL; + if (!core_kernel_text((unsigned long) p->addr)) { + *probed_mod = __module_text_address((unsigned long) p->addr); + if (!(*probed_mod)) { + ret = -EINVAL; + goto out; + } + } + /* Ensure it is not in reserved area. */ + if (in_gate_area_no_mm((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || static_call_text_reserved(p->addr, p->addr) || @@ -1650,8 +1658,7 @@ static int check_kprobe_address_safe(struct kprobe *p, goto out; } - /* Check if are we probing a module */ - *probed_mod = __module_text_address((unsigned long) p->addr); + /* Get module refcount and reject __init functions for loaded modules. */ if (*probed_mod) { /* * We must hold a refcount of the probed module while updating -- 2.25.1

1 0

[PATCH openEuler-22.03-LTS-SP1] RDMA/hns: Fix deadlock on SRQ async events.
by Zhengchao Shao 25 Jun '24

25 Jun '24

From: Chengchang Tang <tangchengchang(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit b46494b6f9c19f141114a57729e198698f40af37 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SF1 CVE: CVE-2024-38591 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- xa_lock for SRQ table may be required in AEQ. Use xa_store_irq()/ xa_erase_irq() to avoid deadlock. Fixes: 81fce6291d99 ("RDMA/hns: Add SRQ asynchronous event support") Signed-off-by: Chengchang Tang <tangchengchang(a)huawei.com> Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Link: https://lore.kernel.org/r/20240412091616.370789-5-huangjunxian6@hisilicon.c… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Conflicts: drivers/infiniband/hw/hns/hns_roce_main.c [The conflict occurs because the commit e4df3a25f0fa("[Backport] RDMA/hns: support RoCE bonding") has been merged. It contains hnae3.h] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- drivers/infiniband/hw/hns/hns_roce_srq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 727c7a134102..a3999fc69719 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -122,7 +122,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) return ret; } - ret = xa_err(xa_store(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); + ret = xa_err(xa_store_irq(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); if (ret) { ibdev_err(ibdev, "failed to store SRQC, ret = %d.\n", ret); goto err_put; @@ -135,7 +135,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) return 0; err_xa: - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); err_put: hns_roce_table_put(hr_dev, &srq_table->table, srq->srqn); @@ -153,7 +153,7 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) dev_err(hr_dev->dev, "DESTROY_SRQ failed (%d) for SRQN %06lx\n", ret, srq->srqn); - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); if (refcount_dec_and_test(&srq->refcount)) complete(&srq->free); -- 2.34.1

2 1

[PATCH OLK-5.10 0/1] CVE-2024-38587
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Dan Carpenter (1): speakup: Fix sizeof() vs ARRAY_SIZE() bug drivers/accessibility/speakup/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/1] CVE-2024-38587
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Dan Carpenter (1): speakup: Fix sizeof() vs ARRAY_SIZE() bug drivers/accessibility/speakup/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS 0/2] net: lts v4.311 backport
by Dong Chenchen 24 Jun '24

24 Jun '24

net lts patch v4.311 backport Christophe JAILLET (1): net: sunrpc: Fix an off by one in rpc_sockaddr2uaddr() Shiming Cheng (1): ipv6: fib6_rules: flush route cache when rule is changed net/ipv6/fib6_rules.c | 6 ++++++ net/sunrpc/addr.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) -- 2.25.1

2 3

[PATCH openEuler-1.0-LTS] drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable
by Pu Lehui 24 Jun '24

24 Jun '24

From: José Expósito <jose.exposito89(a)gmail.com> stable inclusion from stable-v4.19.228 commit ca63eeb70fcb53c42e1fe54e1735a54d8e7759fd category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA72C3 CVE: CVE-2022-48756 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 5e761a2287234bc402ba7ef07129f5103bcd775c upstream. The function performs a check on the "phy" input parameter, however, it is used before the check. Initialize the "dev" variable after the sanity check to avoid a possible NULL pointer dereference. Fixes: 5c8290284402b ("drm/msm/dsi: Split PHY drivers to separate files") Addresses-Coverity-ID: 1493860 ("Null pointer dereference") Signed-off-by: José Expósito <jose.exposito89(a)gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20220116181844.7400-1-jose.exposito89@gmail.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index 9a9fa0c75a13..fa0e33ca91ca 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -667,12 +667,14 @@ void __exit msm_dsi_phy_driver_unregister(void) int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, struct msm_dsi_phy_clk_request *clk_req) { - struct device *dev = &phy->pdev->dev; + struct device *dev; int ret; if (!phy || !phy->cfg->ops.enable) return -EINVAL; + dev = &phy->pdev->dev; + ret = dsi_phy_enable_resource(phy); if (ret) { dev_err(dev, "%s: resource enable failed, %d\n", -- 2.34.1

2 1

[PATCH OLK-5.10] fs: Use CHECK_DATA_CORRUPTION() when kernel bugs are detected
by liwei 24 Jun '24

24 Jun '24

From: Jann Horn <jannh(a)google.com> mainline inclusion from mainline-v6.3-rc1 commit 47d586913f2abec4d240bae33417f537fda987ec category: performance bugzilla: https://gitee.com/openeuler/kernel/issues/IA5PIS CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Currently, filp_close() and generic_shutdown_super() use printk() to log messages when bugs are detected. This is problematic because infrastructure like syzkaller has no idea that this message indicates a bug. In addition, some people explicitly want their kernels to BUG() when kernel data corruption has been detected (CONFIG_BUG_ON_DATA_CORRUPTION). And finally, when generic_shutdown_super() detects remaining inodes on a system without CONFIG_BUG_ON_DATA_CORRUPTION, it would be nice if later accesses to a busy inode would at least crash somewhat cleanly rather than walking through freed memory. To address all three, use CHECK_DATA_CORRUPTION() when kernel bugs are detected. Signed-off-by: Jann Horn <jannh(a)google.com> Reviewed-by: Christian Brauner (Microsoft) <brauner(a)kernel.org> Reviewed-by: Kees Cook <keescook(a)chromium.org> Signed-off-by: Christian Brauner (Microsoft) <brauner(a)kernel.org> Conflicts: include/linux/poison.h Signed-off-by: liwei <liwei728(a)huawei.com> --- fs/open.c | 5 +++-- fs/super.c | 21 +++++++++++++++++---- include/linux/poison.h | 3 +++ 3 files changed, 23 insertions(+), 6 deletions(-) diff --git a/fs/open.c b/fs/open.c index 8092178ceab0..926fd0598935 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1285,8 +1285,9 @@ int filp_close(struct file *filp, fl_owner_t id) { int retval = 0; - if (!file_count(filp)) { - printk(KERN_ERR "VFS: Close: file count is 0\n"); + if (CHECK_DATA_CORRUPTION(file_count(filp) == 0, + "VFS: Close: file count is 0 (f_op=%ps)", + filp->f_op)) { return 0; } diff --git a/fs/super.c b/fs/super.c index db6345634f8b..db46a20da0c8 100644 --- a/fs/super.c +++ b/fs/super.c @@ -465,10 +465,23 @@ void generic_shutdown_super(struct super_block *sb) if (sop->put_super) sop->put_super(sb); - if (!list_empty(&sb->s_inodes)) { - printk("VFS: Busy inodes after unmount of %s. " - "Self-destruct in 5 seconds. Have a nice day...\n", - sb->s_id); + if (CHECK_DATA_CORRUPTION(!list_empty(&sb->s_inodes), + "VFS: Busy inodes after unmount of %s (%s)", + sb->s_id, sb->s_type->name)) { + /* + * Adding a proper bailout path here would be hard, but + * we can at least make it more likely that a later + * iput_final() or such crashes cleanly. + */ + struct inode *inode; + + spin_lock(&sb->s_inode_list_lock); + list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { + inode->i_op = VFS_PTR_POISON; + inode->i_sb = VFS_PTR_POISON; + inode->i_mapping = VFS_PTR_POISON; + } + spin_unlock(&sb->s_inode_list_lock); } } spin_lock(&sb_lock); diff --git a/include/linux/poison.h b/include/linux/poison.h index 028133fb1405..a33190e56035 100644 --- a/include/linux/poison.h +++ b/include/linux/poison.h @@ -85,4 +85,7 @@ /********** net/core/page_pool.c **********/ #define PP_SIGNATURE (0x40 + POISON_POINTER_DELTA) +/********** VFS **********/ +#define VFS_PTR_POISON ((void *)(0xF5 + POISON_POINTER_DELTA)) + #endif -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] NFS: Fix an off by one in root_nfs_cat()
by Wang Zhaolong 24 Jun '24

24 Jun '24

From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> stable inclusion from stable-v4.19.311 commit 9bb320c5cea50e7fa82a477743a6a0546eaa37b3 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7XXI CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 698ad1a538da0b6bf969cfee630b4e3a026afb87 ] The intent is to check if 'dest' is truncated or not. So, >= should be used instead of >, because strlcat() returns the length of 'dest' and 'src' excluding the trailing NULL. Fixes: 56463e50d1fc ("NFS: Use super.c for NFSROOT mount option parsing") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Reviewed-by: Benjamin Coddington <bcodding(a)redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust(a)hammerspace.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> --- fs/nfs/nfsroot.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c index effaa4247b91..c0f2e1751c33 100644 --- a/fs/nfs/nfsroot.c +++ b/fs/nfs/nfsroot.c @@ -169,10 +169,10 @@ static int __init root_nfs_cat(char *dest, const char *src, size_t len = strlen(dest); if (len && dest[len - 1] != ',') - if (strlcat(dest, ",", destlen) > destlen) + if (strlcat(dest, ",", destlen) >= destlen) return -1; - if (strlcat(dest, src, destlen) > destlen) + if (strlcat(dest, src, destlen) >= destlen) return -1; return 0; } -- 2.34.3

2 1

[PATCH OLK-6.6] block: refine the EOF check in blkdev_iomap_begin
by Li Nan 24 Jun '24

24 Jun '24

From: Christoph Hellwig <hch(a)lst.de> stable inclusion from stable-v6.6.33 commit 910717920c8c3f9386277a44c44d448058a18084 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SG8 CVE: CVE-2024-38604 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 0c12028aec837f5a002009bbf68d179d506510e8 ] blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned. Fixes: 487c607df790 ("block: use iomap for writes to block devices") Reported-by: syzbot+0a3683a0a6fecf909244(a)syzkaller.appspotmail.com Signed-off-by: Christoph Hellwig <hch(a)lst.de> Tested-by: syzbot+0a3683a0a6fecf909244(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20240503081042.2078062-1-hch@lst.de 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/fops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/fops.c b/block/fops.c index 7e921f999182..33b724b1d963 100644 --- a/block/fops.c +++ b/block/fops.c @@ -387,7 +387,7 @@ static int blkdev_iomap_begin(struct inode *inode, loff_t offset, loff_t length, iomap->bdev = bdev; iomap->offset = ALIGN_DOWN(offset, bdev_logical_block_size(bdev)); - if (iomap->offset >= isize) + if (offset >= isize) return -EIO; iomap->type = IOMAP_MAPPED; iomap->addr = iomap->offset; -- 2.39.2

2 1

[PATCH OLK-6.6 0/1] vfio/pci: fix potential memory leak in vfio_intx_enable()
by Huang Xiaojia 24 Jun '24

24 Jun '24

*** BLURB HERE *** Ye Bin (1): vfio/pci: fix potential memory leak in vfio_intx_enable() drivers/vfio/pci/vfio_pci_intrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-6.6] serial: max3100: Update uart_driver_registered on driver removal
by Yi Yang 24 Jun '24

24 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v6.6.33 commit e8a10089eddba40d4b2080c9d3fc2d2b2488f762 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D2Z CVE: CVE-2024-38633 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 712a1fcb38dc7cac6da63ee79a88708fbf9c45ec ] The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call. Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Reviewed-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20240402195306.269276-3-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 5efb2b593be3..b6b395c59621 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -738,13 +738,14 @@ static int max3100_probe(struct spi_device *spi) mutex_lock(&max3100s_lock); if (!uart_driver_registered) { - uart_driver_registered = 1; retval = uart_register_driver(&max3100_uart_driver); if (retval) { printk(KERN_ERR "Couldn't register max3100 uart driver\n"); mutex_unlock(&max3100s_lock); return retval; } + + uart_driver_registered = 1; } for (i = 0; i < MAX_MAX3100; i++) @@ -830,6 +831,7 @@ static void max3100_remove(struct spi_device *spi) } pr_debug("removing max3100 driver\n"); uart_unregister_driver(&max3100_uart_driver); + uart_driver_registered = 0; mutex_unlock(&max3100s_lock); } -- 2.25.1

2 1

[PATCH OLK-5.10 0/1] vfio/pci: fix potential memory leak in vfio_intx_enable()
by Huang Xiaojia 24 Jun '24

24 Jun '24

*** BLURB HERE *** Ye Bin (1): vfio/pci: fix potential memory leak in vfio_intx_enable() drivers/vfio/pci/vfio_pci_intrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1 0/1] vfio/pci: fix potential memory leak in vfio_intx_enable()
by Huang Xiaojia 24 Jun '24

24 Jun '24

*** BLURB HERE *** Ye Bin (1): vfio/pci: fix potential memory leak in vfio_intx_enable() drivers/vfio/pci/vfio_pci_intrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] serial: max3100: Update uart_driver_registered on driver removal
by Yi Yang 24 Jun '24

24 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit e8e2a4339decad7e59425b594a98613402652d72 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D2Z CVE: CVE-2024-38633 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 712a1fcb38dc7cac6da63ee79a88708fbf9c45ec ] The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call. Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Reviewed-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20240402195306.269276-3-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..fd1ce5ec3ba1 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -743,13 +743,14 @@ static int max3100_probe(struct spi_device *spi) mutex_lock(&max3100s_lock); if (!uart_driver_registered) { - uart_driver_registered = 1; retval = uart_register_driver(&max3100_uart_driver); if (retval) { printk(KERN_ERR "Couldn't register max3100 uart driver\n"); mutex_unlock(&max3100s_lock); return retval; } + + uart_driver_registered = 1; } for (i = 0; i < MAX_MAX3100; i++) @@ -835,6 +836,7 @@ static int max3100_remove(struct spi_device *spi) } pr_debug("removing max3100 driver\n"); uart_unregister_driver(&max3100_uart_driver); + uart_driver_registered = 0; mutex_unlock(&max3100s_lock); return 0; -- 2.25.1

2 1

[PATCH OLK-5.10] serial: max3100: Update uart_driver_registered on driver removal
by Yi Yang 24 Jun '24

24 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit e8e2a4339decad7e59425b594a98613402652d72 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D2Z CVE: CVE-2024-38633 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 712a1fcb38dc7cac6da63ee79a88708fbf9c45ec ] The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call. Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Reviewed-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20240402195306.269276-3-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..fd1ce5ec3ba1 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -743,13 +743,14 @@ static int max3100_probe(struct spi_device *spi) mutex_lock(&max3100s_lock); if (!uart_driver_registered) { - uart_driver_registered = 1; retval = uart_register_driver(&max3100_uart_driver); if (retval) { printk(KERN_ERR "Couldn't register max3100 uart driver\n"); mutex_unlock(&max3100s_lock); return retval; } + + uart_driver_registered = 1; } for (i = 0; i < MAX_MAX3100; i++) @@ -835,6 +836,7 @@ static int max3100_remove(struct spi_device *spi) } pr_debug("removing max3100 driver\n"); uart_unregister_driver(&max3100_uart_driver); + uart_driver_registered = 0; mutex_unlock(&max3100s_lock); return 0; -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] serial: max3100: Update uart_driver_registered on driver removal
by Yi Yang 24 Jun '24

24 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v4.19.316 commit 21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D2Z CVE: CVE-2024-38633 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 712a1fcb38dc7cac6da63ee79a88708fbf9c45ec ] The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call. Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Reviewed-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20240402195306.269276-3-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..fd1ce5ec3ba1 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -743,13 +743,14 @@ static int max3100_probe(struct spi_device *spi) mutex_lock(&max3100s_lock); if (!uart_driver_registered) { - uart_driver_registered = 1; retval = uart_register_driver(&max3100_uart_driver); if (retval) { printk(KERN_ERR "Couldn't register max3100 uart driver\n"); mutex_unlock(&max3100s_lock); return retval; } + + uart_driver_registered = 1; } for (i = 0; i < MAX_MAX3100; i++) @@ -835,6 +836,7 @@ static int max3100_remove(struct spi_device *spi) } pr_debug("removing max3100 driver\n"); uart_unregister_driver(&max3100_uart_driver); + uart_driver_registered = 0; mutex_unlock(&max3100s_lock); return 0; -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/1] vfio/pci: fix potential memory leak in vfio_intx_enable()
by Huang Xiaojia 24 Jun '24

24 Jun '24

*** BLURB HERE *** Ye Bin (1): vfio/pci: fix potential memory leak in vfio_intx_enable() drivers/vfio/pci/vfio_pci_intrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-6.6 0/1] psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Joseph Qi (1): psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT kernel/sched/psi.c | 4 ++++ 1 file changed, 4 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] RDMA/hns: Fix UAF for cq async event
by Zhengchao Shao 24 Jun '24

24 Jun '24

From: Chengchang Tang <tangchengchang(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit a942ec2745ca864cd8512142100e4027dc306a42 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8C CVE: CVE-2024-38545 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xa_lock() to protect the CQ refcount. Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver") Signed-off-by: Chengchang Tang <tangchengchang(a)huawei.com> Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Link: https://lore.kernel.org/r/20240412091616.370789-6-huangjunxian6@hisilicon.c… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> Conflicts: drivers/infiniband/hw/hns/hns_roce_cq.c [The conflict occurs because the commit f0588567976e("RDMA/hns: Unified Log Printing Style") is not merged] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- drivers/infiniband/hw/hns/hns_roce_cq.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index 98dcbc40f964..01a18fbc5525 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -151,7 +151,7 @@ static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq) return ret; } - ret = xa_err(xa_store(&cq_table->array, hr_cq->cqn, hr_cq, GFP_KERNEL)); + ret = xa_err(xa_store_irq(&cq_table->array, hr_cq->cqn, hr_cq, GFP_KERNEL)); if (ret) { ibdev_err(ibdev, "failed to xa_store CQ, ret = %d.\n", ret); goto err_put; @@ -164,7 +164,7 @@ static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq) return 0; err_xa: - xa_erase(&cq_table->array, hr_cq->cqn); + xa_erase_irq(&cq_table->array, hr_cq->cqn); err_put: hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); @@ -183,7 +183,7 @@ static void free_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq) dev_err(dev, "DESTROY_CQ failed (%d) for CQN %06lx\n", ret, hr_cq->cqn); - xa_erase(&cq_table->array, hr_cq->cqn); + xa_erase_irq(&cq_table->array, hr_cq->cqn); /* Waiting interrupt process procedure carried out */ synchronize_irq(hr_dev->eq_table.eq[hr_cq->vector].irq); @@ -473,13 +473,6 @@ void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type) struct ib_event event; struct ib_cq *ibcq; - hr_cq = xa_load(&hr_dev->cq_table.array, - cqn & (hr_dev->caps.num_cqs - 1)); - if (!hr_cq) { - dev_warn(dev, "Async event for bogus CQ 0x%06x\n", cqn); - return; - } - if (event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID && event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR && event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) { @@ -488,7 +481,16 @@ void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type) return; } - refcount_inc(&hr_cq->refcount); + xa_lock(&hr_dev->cq_table.array); + hr_cq = xa_load(&hr_dev->cq_table.array, + cqn & (hr_dev->caps.num_cqs - 1)); + if (hr_cq) + refcount_inc(&hr_cq->refcount); + xa_unlock(&hr_dev->cq_table.array); + if (!hr_cq) { + dev_warn(dev, "async event for bogus CQ 0x%06x\n", cqn); + return; + } ibcq = &hr_cq->ib_cq; if (ibcq->event_handler) { -- 2.34.1

2 1

[PATCH OLK-6.6] ALSA: core: Fix NULL module pointer assignment at card init
by Li Huafei 24 Jun '24

24 Jun '24

From: Takashi Iwai <tiwai(a)suse.de> stable inclusion from stable-v6.6.33 commit e644036a3e2b2c9b3eee3c61b5d31c2ca8b5ba92 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5L CVE: CVE-2024-38605 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 39381fe7394e5eafac76e7e9367e7351138a29c1 upstream. The commit 81033c6b584b ("ALSA: core: Warn on empty module") introduced a WARN_ON() for a NULL module pointer passed at snd_card object creation, and it also wraps the code around it with '#ifdef MODULE'. This works in most cases, but the devils are always in details. "MODULE" is defined when the target code (i.e. the sound core) is built as a module; but this doesn't mean that the caller is also built-in or not. Namely, when only the sound core is built-in (CONFIG_SND=y) while the driver is a module (CONFIG_SND_USB_AUDIO=m), the passed module pointer is ignored even if it's non-NULL, and card->module remains as NULL. This would result in the missing module reference up/down at the device open/close, leading to a race with the code execution after the module removal. For addressing the bug, move the assignment of card->module again out of ifdef. The WARN_ON() is still wrapped with ifdef because the module can be really NULL when all sound drivers are built-in. Note that we keep 'ifdef MODULE' for WARN_ON(), otherwise it would lead to a false-positive NULL module check. Admittedly it won't catch perfectly, i.e. no check is performed when CONFIG_SND=y. But, it's no real problem as it's only for debugging, and the condition is pretty rare. Fixes: 81033c6b584b ("ALSA: core: Warn on empty module") Reported-by: Xu Yang <xu.yang_2(a)nxp.com> Closes: https://lore.kernel.org/r/20240520170349.2417900-1-xu.yang_2@nxp.com Cc: <stable(a)vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Tested-by: Xu Yang <xu.yang_2(a)nxp.com> Link: https://lore.kernel.org/r/20240522070442.17786-1-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- sound/core/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/init.c b/sound/core/init.c index 22c0d217b8608..f8dfc8d7010e2 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -312,8 +312,8 @@ static int snd_card_init(struct snd_card *card, struct device *parent, card->number = idx; #ifdef MODULE WARN_ON(!module); - card->module = module; #endif + card->module = module; INIT_LIST_HEAD(&card->devices); init_rwsem(&card->controls_rwsem); rwlock_init(&card->ctl_files_rwlock); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] ALSA: core: Fix NULL module pointer assignment at card init
by Li Huafei 24 Jun '24

24 Jun '24

From: Takashi Iwai <tiwai(a)suse.de> stable inclusion from stable-v5.10.219 commit d7ff29a429b56f04783152ad7bbd7233b740e434 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5L CVE: CVE-2024-38605 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 39381fe7394e5eafac76e7e9367e7351138a29c1 upstream. The commit 81033c6b584b ("ALSA: core: Warn on empty module") introduced a WARN_ON() for a NULL module pointer passed at snd_card object creation, and it also wraps the code around it with '#ifdef MODULE'. This works in most cases, but the devils are always in details. "MODULE" is defined when the target code (i.e. the sound core) is built as a module; but this doesn't mean that the caller is also built-in or not. Namely, when only the sound core is built-in (CONFIG_SND=y) while the driver is a module (CONFIG_SND_USB_AUDIO=m), the passed module pointer is ignored even if it's non-NULL, and card->module remains as NULL. This would result in the missing module reference up/down at the device open/close, leading to a race with the code execution after the module removal. For addressing the bug, move the assignment of card->module again out of ifdef. The WARN_ON() is still wrapped with ifdef because the module can be really NULL when all sound drivers are built-in. Note that we keep 'ifdef MODULE' for WARN_ON(), otherwise it would lead to a false-positive NULL module check. Admittedly it won't catch perfectly, i.e. no check is performed when CONFIG_SND=y. But, it's no real problem as it's only for debugging, and the condition is pretty rare. Fixes: 81033c6b584b ("ALSA: core: Warn on empty module") Reported-by: Xu Yang <xu.yang_2(a)nxp.com> Closes: https://lore.kernel.org/r/20240520170349.2417900-1-xu.yang_2@nxp.com Cc: <stable(a)vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Tested-by: Xu Yang <xu.yang_2(a)nxp.com> Link: https://lore.kernel.org/r/20240522070442.17786-1-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- sound/core/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/init.c b/sound/core/init.c index 9f5270c90a10a..b6dd43005c272 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -206,8 +206,8 @@ int snd_card_new(struct device *parent, int idx, const char *xid, card->number = idx; #ifdef MODULE WARN_ON(!module); - card->module = module; #endif + card->module = module; INIT_LIST_HEAD(&card->devices); init_rwsem(&card->controls_rwsem); rwlock_init(&card->ctl_files_rwlock); -- 2.25.1

2 1

[PATCH OLK-5.10] ALSA: core: Fix NULL module pointer assignment at card init
by Li Huafei 24 Jun '24

24 Jun '24

From: Takashi Iwai <tiwai(a)suse.de> stable inclusion from stable-v5.10.219 commit d7ff29a429b56f04783152ad7bbd7233b740e434 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5L CVE: CVE-2024-38605 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 39381fe7394e5eafac76e7e9367e7351138a29c1 upstream. The commit 81033c6b584b ("ALSA: core: Warn on empty module") introduced a WARN_ON() for a NULL module pointer passed at snd_card object creation, and it also wraps the code around it with '#ifdef MODULE'. This works in most cases, but the devils are always in details. "MODULE" is defined when the target code (i.e. the sound core) is built as a module; but this doesn't mean that the caller is also built-in or not. Namely, when only the sound core is built-in (CONFIG_SND=y) while the driver is a module (CONFIG_SND_USB_AUDIO=m), the passed module pointer is ignored even if it's non-NULL, and card->module remains as NULL. This would result in the missing module reference up/down at the device open/close, leading to a race with the code execution after the module removal. For addressing the bug, move the assignment of card->module again out of ifdef. The WARN_ON() is still wrapped with ifdef because the module can be really NULL when all sound drivers are built-in. Note that we keep 'ifdef MODULE' for WARN_ON(), otherwise it would lead to a false-positive NULL module check. Admittedly it won't catch perfectly, i.e. no check is performed when CONFIG_SND=y. But, it's no real problem as it's only for debugging, and the condition is pretty rare. Fixes: 81033c6b584b ("ALSA: core: Warn on empty module") Reported-by: Xu Yang <xu.yang_2(a)nxp.com> Closes: https://lore.kernel.org/r/20240520170349.2417900-1-xu.yang_2@nxp.com Cc: <stable(a)vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Tested-by: Xu Yang <xu.yang_2(a)nxp.com> Link: https://lore.kernel.org/r/20240522070442.17786-1-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Li Huafei <lihuafei1(a)huawei.com> --- sound/core/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/core/init.c b/sound/core/init.c index 9f5270c90a10a..b6dd43005c272 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -206,8 +206,8 @@ int snd_card_new(struct device *parent, int idx, const char *xid, card->number = idx; #ifdef MODULE WARN_ON(!module); - card->module = module; #endif + card->module = module; INIT_LIST_HEAD(&card->devices); init_rwsem(&card->controls_rwsem); rwlock_init(&card->ctl_files_rwlock); -- 2.25.1

2 1

[PATCH OLK-6.6 0/6] CVE-2024-38622
by Yongqiang Liu 24 Jun '24

24 Jun '24

Aleksandr Mishin (1): drm/msm/dpu: Add callback function pointer check before its call Dmitry Baryshkov (5): drm/msm/dpu: remove irq_idx argument from IRQ callbacks drm/msm/dpu: extract dpu_core_irq_is_valid() helper drm/msm/dpu: add helper to get IRQ-related data drm/msm/dpu: make the irq table size static drm/msm/dpu: stop using raw IRQ indices in the kernel output drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 30 ++-- .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 2 +- .../drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 8 +- .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 4 +- .../drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 16 +-- .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 131 +++++++++++------- .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h | 18 ++- 8 files changed, 119 insertions(+), 92 deletions(-) -- 2.34.1

2 7

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-27416
by Yongqiang Liu 24 Jun '24

24 Jun '24

Luiz Augusto von Dentz (1): Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST net/bluetooth/hci_event.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH OLK-5.10 0/1] CVE-2024-38587
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Dan Carpenter (1): speakup: Fix sizeof() vs ARRAY_SIZE() bug drivers/accessibility/speakup/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] [Backport] macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
by felix 24 Jun '24

24 Jun '24

From: Finn Thain <fthain(a)linux-m68k.org> stable inclusion from stable-v5.10.219 commit 280619bbdeac186fb320fab3d61122d2a085def8 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHU CVE: CVE-2024-38607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d301a71c76ee4c384b4e03cdc320a55f5cf1df05 ] The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain(a)linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/419fcc09d0e563b425c419053d02236b044d86b0.17102984… Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Felix Fu <fuzhen5(a)huawei.com> --- drivers/macintosh/via-macii.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index 060e03f2264b..6adb34d1e381 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -142,24 +142,19 @@ static int macii_probe(void) /* Initialize the driver */ static int macii_init(void) { - unsigned long flags; int err; - local_irq_save(flags); - err = macii_init_via(); if (err) - goto out; + return err; err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); if (err) - goto out; + return err; macii_state = idle; -out: - local_irq_restore(flags); - return err; + return 0; } /* initialize the hardware */ -- 2.34.1

2 1

[PATCH OLK-5.10 0/1] CVE-2024-27416
by Yongqiang Liu 24 Jun '24

24 Jun '24

Luiz Augusto von Dentz (1): Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST net/bluetooth/hci_event.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS v2] net: qcom/emac: fix UAF in emac_remove
by Ze Zuo 24 Jun '24

24 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> stable inclusion from stable-v4.19.199 commit 11e9d163d631198bb3eb41a677a61b499516c0f7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S29U CVE: CVE-2021-47311 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit ad297cd2db8953e2202970e9504cab247b6c7cb4 upstream. adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. Fixes: 54e19bc74f33 ("net: qcom/emac: do not use devm on internal phy pdev") 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: Ze Zuo <zuoze1(a)huawei.com> --- Changes since v1: -- fix the commit error. drivers/net/ethernet/qualcomm/emac/emac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c index b10f2bcf8506..938602864c24 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac.c @@ -754,12 +754,13 @@ static int emac_remove(struct platform_device *pdev) put_device(&adpt->phydev->mdio.dev); mdiobus_unregister(adpt->mii_bus); - free_netdev(netdev); if (adpt->phy.digital) iounmap(adpt->phy.digital); iounmap(adpt->phy.base); + free_netdev(netdev); + return 0; } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] iommu/iova: move depot up to avoid cache conflict
by felix 24 Jun '24

24 Jun '24

From: Zhang Zekun <zhangzekun11(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9TIC6 ------------------------------------------ The first four params in struct iova_rcache will share the same cache line. The depot related parameter which will be upated each time the depot has been changed, and it should not influence the field "cpu_rcache". Moving the delayed_work up to avoid cache false-sharing, because it has 192 Bytes, which should be enough for sperating a cache line. The optimization can be reflected by perf top: Before: 31.13% [kernel] [k] queue_iova 23.02% [kernel] [k] __iova_rcache_get 7.78% [kernel] [k] __arm_lpae_unmap 6.18% [kernel] [k] arm_lpae_map 3.91% [kernel] [k] sch_direct_xmit 3.19% [kernel] [k] __arm_lpae_map 1.50% [kernel] [k] __dev_queue_xmit After: 15.88% [kernel] [k] __arm_lpae_unmap 11.33% [kernel] [k] arm_lpae_map 7.98% [kernel] [k] sch_direct_xmit 6.71% [kernel] [k] __arm_lpae_map 5.35% [kernel] [k] queue_iova 3.09% [kernel] [k] __dev_queue_xmit 2.83% [kernel] [k] ip_finish_output2 Fixes: 876b598ef137 ("iommu/iova: Make the rcache depot scale better") Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- include/linux/iova.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/iova.h b/include/linux/iova.h index ccc59e4b6c54..32996e73ce19 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -31,9 +31,9 @@ struct iova_rcache { spinlock_t lock; unsigned int depot_size; struct iova_magazine *depot; + struct delayed_work work; struct iova_cpu_rcache __percpu *cpu_rcaches; struct iova_domain *iovad; - struct delayed_work work; KABI_RESERVE(1) KABI_RESERVE(2) }; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
by felix 24 Jun '24

24 Jun '24

From: Finn Thain <fthain(a)linux-m68k.org> stable inclusion from stable-v4.19.316 commit e4ff8bcfb2841fe4e17e5901578b632adb89036d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHU CVE: CVE-2024-38607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d301a71c76ee4c384b4e03cdc320a55f5cf1df05 ] The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain(a)linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/419fcc09d0e563b425c419053d02236b044d86b0.17102984… Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/macintosh/via-macii.c [Fix context, beacause 47fd206 not merged] Signed-off-by: Felix Fu <fuzhen5(a)huawei.com> --- drivers/macintosh/via-macii.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index cf6f7d52d6be..e1773524f4f1 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -151,22 +151,19 @@ static int macii_probe(void) /* Initialize the driver */ int macii_init(void) { - unsigned long flags; int err; - local_irq_save(flags); - err = macii_init_via(); - if (err) goto out; + if (err) + return err; err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); - if (err) goto out; + if (err) + return err; macii_state = idle; -out: - local_irq_restore(flags); - return err; + return 0; } /* initialize the hardware */ -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
by felix 24 Jun '24

24 Jun '24

From: Finn Thain <fthain(a)linux-m68k.org> stable inclusion from stable-v4.19.316 commit e4ff8bcfb2841fe4e17e5901578b632adb89036d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHU CVE: CVE-2024-38607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d301a71c76ee4c384b4e03cdc320a55f5cf1df05 ] The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain(a)linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/419fcc09d0e563b425c419053d02236b044d86b0.17102984… Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Felix Fu <fuzhen5(a)huawei.com> --- drivers/macintosh/via-macii.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index cf6f7d52d6be..e1773524f4f1 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -151,22 +151,19 @@ static int macii_probe(void) /* Initialize the driver */ int macii_init(void) { - unsigned long flags; int err; - local_irq_save(flags); - err = macii_init_via(); - if (err) goto out; + if (err) + return err; err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); - if (err) goto out; + if (err) + return err; macii_state = idle; -out: - local_irq_restore(flags); - return err; + return 0; } /* initialize the hardware */ -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] fs/ntfs3: Use variable length array instead of fixed size
by Long Li 24 Jun '24

24 Jun '24

From: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> stable inclusion from stable-v5.15.160 commit a2de301d90b782ac5d7a5fe32995caaee9ab3a0f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D5A CVE: CVE-2024-38623 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- [ Upstream commit 1997cdc3e727526aa5d84b32f7cbb3f56459b7ef ] Should fix smatch warning: ntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256) Fixes: 4534a70b7056f ("fs/ntfs3: Add headers and misc files") Reported-by: kernel test robot <lkp(a)intel.com> Reported-by: Dan Carpenter <dan.carpenter(a)linaro.org> Closes: https://lore.kernel.org/r/202401091421.3RJ24Mn3-lkp@intel.com/ Signed-off-by: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/ntfs3/ntfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h index 9cc396b117bf..2e2c6126bbf4 100644 --- a/fs/ntfs3/ntfs.h +++ b/fs/ntfs3/ntfs.h @@ -59,7 +59,7 @@ struct GUID { struct cpu_str { u8 len; u8 unused; - u16 name[10]; + u16 name[]; }; struct le_str { -- 2.39.2

2 1

[PATCH OLK-5.10] fs/ntfs3: Use variable length array instead of fixed size
by Long Li 24 Jun '24

24 Jun '24

From: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> stable inclusion from stable-v5.15.160 commit a2de301d90b782ac5d7a5fe32995caaee9ab3a0f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D5A CVE: CVE-2024-38623 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- [ Upstream commit 1997cdc3e727526aa5d84b32f7cbb3f56459b7ef ] Should fix smatch warning: ntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256) Fixes: 4534a70b7056f ("fs/ntfs3: Add headers and misc files") Reported-by: kernel test robot <lkp(a)intel.com> Reported-by: Dan Carpenter <dan.carpenter(a)linaro.org> Closes: https://lore.kernel.org/r/202401091421.3RJ24Mn3-lkp@intel.com/ Signed-off-by: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/ntfs3/ntfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h index 9cc396b117bf..2e2c6126bbf4 100644 --- a/fs/ntfs3/ntfs.h +++ b/fs/ntfs3/ntfs.h @@ -59,7 +59,7 @@ struct GUID { struct cpu_str { u8 len; u8 unused; - u16 name[10]; + u16 name[]; }; struct le_str { -- 2.39.2

2 1

[PATCH OLK-5.10] [Backport] macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
by felix 24 Jun '24

24 Jun '24

From: Finn Thain <fthain(a)linux-m68k.org> stable inclusion from stable-v5.10.219 commit 280619bbdeac186fb320fab3d61122d2a085def8 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHU CVE: CVE-2024-38607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d301a71c76ee4c384b4e03cdc320a55f5cf1df05 ] The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain(a)linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/419fcc09d0e563b425c419053d02236b044d86b0.17102984… Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Felix Fu <fuzhen5(a)huawei.com> --- drivers/macintosh/via-macii.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index 060e03f2264b..6adb34d1e381 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -142,24 +142,19 @@ static int macii_probe(void) /* Initialize the driver */ static int macii_init(void) { - unsigned long flags; int err; - local_irq_save(flags); - err = macii_init_via(); if (err) - goto out; + return err; err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); if (err) - goto out; + return err; macii_state = idle; -out: - local_irq_restore(flags); - return err; + return 0; } /* initialize the hardware */ -- 2.34.1

2 1

[PATCH OLK-6.6] [Backport] macintosh/via-macii: Fix "BUG: sleeping function called from invalid context"
by felix 24 Jun '24

24 Jun '24

From: Finn Thain <fthain(a)linux-m68k.org> stable inclusion from stable-v6.6.33 commit d43a8c7ec0841e0ff91a968770aeca83f0fd4c56 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHU CVE: CVE-2024-38607 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit d301a71c76ee4c384b4e03cdc320a55f5cf1df05 ] The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain(a)linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/419fcc09d0e563b425c419053d02236b044d86b0.17102984… Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Felix Fu <fuzhen5(a)huawei.com> --- drivers/macintosh/via-macii.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index db9270da5b8e..b6ddf1d47cb4 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -140,24 +140,19 @@ static int macii_probe(void) /* Initialize the driver */ static int macii_init(void) { - unsigned long flags; int err; - local_irq_save(flags); - err = macii_init_via(); if (err) - goto out; + return err; err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); if (err) - goto out; + return err; macii_state = idle; -out: - local_irq_restore(flags); - return err; + return 0; } /* initialize the hardware */ -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 24 Jun '24

24 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit cc121e3722a0a2c8f716ef991e5425b180a5fb94 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L CVE: CVE-2024-38634 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH OLK-6.6 0/1] psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Joseph Qi (1): psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT kernel/sched/psi.c | 4 ++++ 1 file changed, 4 insertions(+) -- 2.34.1

2 2

[PATCH OLK-6.6] tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer
by Yipeng Zou 24 Jun '24

24 Jun '24

From: "Matthew R. Ochs" <mochs(a)nvidia.com> mainline inclusion from mainline-v6.10-rc2 commit 195aba96b854dd664768f382cd1db375d8181f88 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7DAP CVE: CVE-2024-36477 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- The TPM SPI transfer mechanism uses MAX_SPI_FRAMESIZE for computing the maximum transfer length and the size of the transfer buffer. As such, it does not account for the 4 bytes of header that prepends the SPI data frame. This can result in out-of-bounds accesses and was confirmed with KASAN. Introduce SPI_HDRSIZE to account for the header and use to allocate the transfer buffer. Fixes: a86a42ac2bd6 ("tpm_tis_spi: Add hardware wait polling") Signed-off-by: Matthew R. Ochs <mochs(a)nvidia.com> Tested-by: Carol Soto <csoto(a)nvidia.com> Reviewed-by: Jarkko Sakkinen <jarkko(a)kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> Signed-off-by: Yipeng Zou <zouyipeng(a)huawei.com> --- drivers/char/tpm/tpm_tis_spi_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm_tis_spi_main.c b/drivers/char/tpm/tpm_tis_spi_main.c index c5c3197ee29f..4bdad9e3667f 100644 --- a/drivers/char/tpm/tpm_tis_spi_main.c +++ b/drivers/char/tpm/tpm_tis_spi_main.c @@ -37,6 +37,7 @@ #include "tpm_tis_spi.h" #define MAX_SPI_FRAMESIZE 64 +#define SPI_HDRSIZE 4 /* * TCG SPI flow control is documented in section 6.4 of the spec[1]. In short, @@ -247,7 +248,7 @@ static int tpm_tis_spi_write_bytes(struct tpm_tis_data *data, u32 addr, int tpm_tis_spi_init(struct spi_device *spi, struct tpm_tis_spi_phy *phy, int irq, const struct tpm_tis_phy_ops *phy_ops) { - phy->iobuf = devm_kmalloc(&spi->dev, MAX_SPI_FRAMESIZE, GFP_KERNEL); + phy->iobuf = devm_kmalloc(&spi->dev, SPI_HDRSIZE + MAX_SPI_FRAMESIZE, GFP_KERNEL); if (!phy->iobuf) return -ENOMEM; -- 2.34.1

2 1

[PATCH OLK-6.6] f2fs: multidev: fix to recognize valid zero block address
by Yifan Qiao 24 Jun '24

24 Jun '24

From: Chao Yu <chao(a)kernel.org> mainline inclusion from mainline-v6.6-rc1 commit 33e62cd7b4c281cd737c62e5d8c4f0e602a8c5c5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D1P CVE: CVE-2024-38636 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- As reported by Yi Zhang in mailing list [1], kernel warning was catched during zbd/010 test as below: ./check zbd/010 zbd/010 (test gap zone support with F2FS) [failed] runtime ... 3.752s something found in dmesg: [ 4378.146781] run blktests zbd/010 at 2024-02-18 11:31:13 [ 4378.192349] null_blk: module loaded [ 4378.209860] null_blk: disk nullb0 created [ 4378.413285] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues to 0. poll_q/nr_hw = (0/1) [ 4378.422334] scsi host15: scsi_debug: version 0191 [20210520] dev_size_mb=1024, opts=0x0, submit_queues=1, statistics=0 [ 4378.434922] scsi 15:0:0:0: Direct-Access-ZBC Linux scsi_debug 0191 PQ: 0 ANSI: 7 [ 4378.443343] scsi 15:0:0:0: Power-on or device reset occurred [ 4378.449371] sd 15:0:0:0: Attached scsi generic sg5 type 20 [ 4378.449418] sd 15:0:0:0: [sdf] Host-managed zoned block device ... (See '/mnt/tests/gitlab.com/api/v4/projects/19168116/repository/archive.zip/storage/blktests/blk/blktests/results/nodev/zbd/010.dmesg' WARNING: CPU: 22 PID: 44011 at fs/iomap/iter.c:51 CPU: 22 PID: 44011 Comm: fio Not tainted 6.8.0-rc3+ #1 RIP: 0010:iomap_iter+0x32b/0x350 Call Trace: <TASK> __iomap_dio_rw+0x1df/0x830 f2fs_file_read_iter+0x156/0x3d0 [f2fs] aio_read+0x138/0x210 io_submit_one+0x188/0x8c0 __x64_sys_io_submit+0x8c/0x1a0 do_syscall_64+0x86/0x170 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Shinichiro Kawasaki helps to analyse this issue and proposes a potential fixing patch in [2]. Quoted from reply of Shinichiro Kawasaki: "I confirmed that the trigger commit is dbf8e63f48af as Yi reported. I took a look in the commit, but it looks fine to me. So I thought the cause is not in the commit diff. I found the WARN is printed when the f2fs is set up with multiple devices, and read requests are mapped to the very first block of the second device in the direct read path. In this case, f2fs_map_blocks() and f2fs_map_blocks_cached() modify map->m_pblk as the physical block address from each block device. It becomes zero when it is mapped to the first block of the device. However, f2fs_iomap_begin() assumes that map->m_pblk is the physical block address of the whole f2fs, across the all block devices. It compares map->m_pblk against NULL_ADDR == 0, then go into the unexpected branch and sets the invalid iomap->length. The WARN catches the invalid iomap->length. This WARN is printed even for non-zoned block devices, by following steps. - Create two (non-zoned) null_blk devices memory backed with 128MB size each: nullb0 and nullb1. # mkfs.f2fs /dev/nullb0 -c /dev/nullb1 # mount -t f2fs /dev/nullb0 "${mount_dir}" # dd if=/dev/zero of="${mount_dir}/test.dat" bs=1M count=192 # dd if="${mount_dir}/test.dat" of=/dev/null bs=1M count=192 iflag=direct ..." So, the root cause of this issue is: when multi-devices feature is on, f2fs_map_blocks() may return zero blkaddr in non-primary device, which is a verified valid block address, however, f2fs_iomap_begin() treats it as an invalid block address, and then it triggers the warning in iomap framework code. Finally, as discussed, we decide to use a more simple and direct way that checking (map.m_flags & F2FS_MAP_MAPPED) condition instead of (map.m_pblk != NULL_ADDR) to fix this issue. Thanks a lot for the effort of Yi Zhang and Shinichiro Kawasaki on this issue. [1] https://lore.kernel.org/linux-f2fs-devel/CAHj4cs-kfojYC9i0G73PRkYzcxCTex=-v… [2] https://lore.kernel.org/linux-f2fs-devel/gngdj77k4picagsfdtiaa7gpgnup6fsgwz… Reported-by: Yi Zhang <yi.zhang(a)redhat.com> Closes: https://lore.kernel.org/linux-f2fs-devel/CAHj4cs-kfojYC9i0G73PRkYzcxCTex=-v… Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki(a)wdc.com> Tested-by: Yi Zhang <yi.zhang(a)redhat.com> Fixes: 1517c1a7a445 ("f2fs: implement iomap operations") Fixes: 8d3c1fa3fa5e ("f2fs: don't rely on F2FS_MAP_* in f2fs_iomap_begin") Signed-off-by: Chao Yu <chao(a)kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk(a)kernel.org> Signed-off-by: Yifan Qiao <qiaoyifan4(a)huawei.com> --- fs/f2fs/data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 5805b77d925e..5d6ba12e8448 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -4243,7 +4243,7 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length, if (WARN_ON_ONCE(map.m_pblk == COMPRESS_ADDR)) return -EINVAL; - if (map.m_pblk != NULL_ADDR) { + if (map.m_flags & F2FS_MAP_MAPPED) { iomap->length = blks_to_bytes(inode, map.m_len); iomap->type = IOMAP_MAPPED; iomap->flags |= IOMAP_F_MERGED; -- 2.39.2

2 1

[PATCH OLK-6.6 0/1] psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT
by Chen Ridong 24 Jun '24

24 Jun '24

*** BLURB HERE *** Joseph Qi (1): psi: using cpuacct_cgrp_id under CONFIG_CGROUP_CPUACCT kernel/sched/psi.c | 4 ++++ 1 file changed, 4 insertions(+) -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] kprobes: Fix possible use-after-free issue on kprobe registration
by Chen Zhongjin 24 Jun '24

24 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> stable inclusion from stable-v5.10.216 commit 5062d1f4f07facbdade0f402d9a04a788f52e26d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRI5 CVE: CVE-2024-35955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 upstream. When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE. Link: https://lore.kernel.org/all/20240410015802.265220-1-zhengyejian1@huawei.com/ Fixes: 28f6c37a2910 ("kprobes: Forbid probing on trampoline and BPF code areas") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> [Fix conflict due to lack dependency commit 223a76b268c9 ("kprobes: Fix coding style issues")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: kernel/kprobes.c [This conflict because dependency commit 1efda38d6f9b ("kprobes: Prohibit probes in gate area") not merged] Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- kernel/kprobes.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 0990b9a5e47c..1a94cbc4572e 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1639,9 +1639,17 @@ static int check_kprobe_address_safe(struct kprobe *p, jump_label_lock(); preempt_disable(); - /* Ensure it is not in reserved area nor out of text */ - if (!(core_kernel_text((unsigned long) p->addr) || - is_module_text_address((unsigned long) p->addr)) || + /* Ensure the address is in a text area, and find a module if exists. */ + *probed_mod = NULL; + if (!core_kernel_text((unsigned long) p->addr)) { + *probed_mod = __module_text_address((unsigned long) p->addr); + if (!(*probed_mod)) { + ret = -EINVAL; + goto out; + } + } + /* Ensure it is not in reserved area. */ + if (in_gate_area_no_mm((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || static_call_text_reserved(p->addr, p->addr) || @@ -1650,8 +1658,7 @@ static int check_kprobe_address_safe(struct kprobe *p, goto out; } - /* Check if are we probing a module */ - *probed_mod = __module_text_address((unsigned long) p->addr); + /* Get module refcount and reject __init functions for loaded modules. */ if (*probed_mod) { /* * We must hold a refcount of the probed module while updating -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] Revert "x86/mm/ident_map: Use gbpages only where full GB page should be mapped."
by Jinjiang Tu 24 Jun '24

24 Jun '24

From: Ingo Molnar <mingo(a)kernel.org> stable inclusion from stable-v4.19.312 commit b66762945d3289d472cedfca81dd98f9d8efe3b7 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7NWS CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit c567f2948f57bdc03ed03403ae0234085f376b7d upstream. This reverts commit d794734c9bbfe22f86686dc2909c25f5ffe1a572. While the original change tries to fix a bug, it also unintentionally broke existing systems, see the regressions reported at: https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjosep… Since d794734c9bbf was also marked for -stable, let's back it out before causing more damage. Note that due to another upstream change the revert was not 100% automatic: 0a845e0f6348 mm/treewide: replace pud_large() with pud_leaf() Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Cc: <stable(a)vger.kernel.org> Cc: Russ Anderson <rja(a)hpe.com> Cc: Steve Wahl <steve.wahl(a)hpe.com> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Link: https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjosep… Fixes: d794734c9bbf ("x86/mm/ident_map: Use gbpages only where full GB page should be mapped.") Signed-off-by: Steve Wahl <steve.wahl(a)hpe.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- arch/x86/mm/ident_map.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c index b33de3a85549..fe7a12599d8e 100644 --- a/arch/x86/mm/ident_map.c +++ b/arch/x86/mm/ident_map.c @@ -26,31 +26,18 @@ static int ident_pud_init(struct x86_mapping_info *info, pud_t *pud_page, for (; addr < end; addr = next) { pud_t *pud = pud_page + pud_index(addr); pmd_t *pmd; - bool use_gbpage; next = (addr & PUD_MASK) + PUD_SIZE; if (next > end) next = end; - /* if this is already a gbpage, this portion is already mapped */ - if (pud_large(*pud)) - continue; - - /* Is using a gbpage allowed? */ - use_gbpage = info->direct_gbpages; - - /* Don't use gbpage if it maps more than the requested region. */ - /* at the begining: */ - use_gbpage &= ((addr & ~PUD_MASK) == 0); - /* ... or at the end: */ - use_gbpage &= ((next & ~PUD_MASK) == 0); - - /* Never overwrite existing mappings */ - use_gbpage &= !pud_present(*pud); - - if (use_gbpage) { + if (info->direct_gbpages) { pud_t pudval; + if (pud_present(*pud)) + continue; + + addr &= PUD_MASK; pudval = __pud((addr - info->offset) | info->page_flag); set_pud(pud, pudval); continue; -- 2.25.1

2 1

[PATCH OLK-5.10] tracing: Fix permissions for the buffer_percent file
by Zheng Yejian 24 Jun '24

24 Jun '24

From: Ondrej Mosnacek <omosnace(a)redhat.com> mainline inclusion from mainline-v6.4-rc1 commit 4f94559f40ad06d627c0fdfc3319cec778a2845b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7NPI Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- This file defines both read and write operations, yet it is being created as read-only. This means that it can't be written to without the CAP_DAC_OVERRIDE capability. Fix the permissions to allow root to write to it without the need to override DAC perms. Link: https://lore.kernel.org/linux-trace-kernel/20230503140114.3280002-1-omosnac… Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Fixes: 03329f993978 ("tracing: Add tracefs file buffer_percentage") Signed-off-by: Ondrej Mosnacek <omosnace(a)redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 7d25b898f440..4c1f7acf38c4 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -9220,7 +9220,7 @@ init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer) tr->buffer_percent = 50; - trace_create_file("buffer_percent", TRACE_MODE_READ, d_tracer, + trace_create_file("buffer_percent", TRACE_MODE_WRITE, d_tracer, tr, &buffer_percent_fops); create_trace_options_dir(tr); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] powerpc/powernv: Add a null pointer check in opal_powercap_init()
by Zhang Zekun 24 Jun '24

24 Jun '24

From: Kunwu Chan <chentao(a)kylinos.cn> stable inclusion from stable-v5.10.209 commit a67a04ad05acb56640798625e73fa54d6d41cce1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9HG CVE: CVE-2023-52696 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit e123015c0ba859cf48aa7f89c5016cc6e98e018d ] kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: b9ef7b4b867f ("powerpc: Convert to using %pOFn instead of device_node.name") Signed-off-by: Kunwu Chan <chentao(a)kylinos.cn> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://msgid.link/20231126095739.1501990-1-chentao@kylinos.cn Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: sanglipeng1 <sanglipeng1(a)jd.com> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- arch/powerpc/platforms/powernv/opal-powercap.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-powercap.c b/arch/powerpc/platforms/powernv/opal-powercap.c index c16d44f6f1d1..ce9ec3962cef 100644 --- a/arch/powerpc/platforms/powernv/opal-powercap.c +++ b/arch/powerpc/platforms/powernv/opal-powercap.c @@ -196,6 +196,12 @@ void __init opal_powercap_init(void) j = 0; pcaps[i].pg.name = kasprintf(GFP_KERNEL, "%pOFn", node); + if (!pcaps[i].pg.name) { + kfree(pcaps[i].pattrs); + kfree(pcaps[i].pg.attrs); + goto out_pcaps_pattrs; + } + if (has_min) { powercap_add_attr(min, "powercap-min", &pcaps[i].pattrs[j]); -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS] net: qcom/emac: fix UAF in emac_remove
by Ze Zuo 23 Jun '24

23 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> stable inclusion from stable-v4.19.199 commit 11e9d163d631198bb3eb41a677a61b499516c0f7 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/pulls/8979 CVE: CVE-2021-47311 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit ad297cd2db8953e2202970e9504cab247b6c7cb4 upstream. adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function. Fixes: 54e19bc74f33 ("net: qcom/emac: do not use devm on internal phy pdev") 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: Ze Zuo <zuoze1(a)huawei.com> --- drivers/net/ethernet/qualcomm/emac/emac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c index b10f2bcf8506..938602864c24 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac.c +++ b/drivers/net/ethernet/qualcomm/emac/emac.c @@ -754,12 +754,13 @@ static int emac_remove(struct platform_device *pdev) put_device(&adpt->phydev->mdio.dev); mdiobus_unregister(adpt->mii_bus); - free_netdev(netdev); if (adpt->phy.digital) iounmap(adpt->phy.digital); iounmap(adpt->phy.base); + free_netdev(netdev); + return 0; } -- 2.25.1

2 1

[PATCH OLK-5.10] sched: ARM64 enables SIS_PROP and disables SIS_UTIL"
by Hui Tang 23 Jun '24

23 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7CCA CVE: NA -------------------------------- We find the commit bb29df9fb065 ("sched/fair: Introduce SIS_UTIL to search idle CPU..."), which cause performance degradation with Unixbench pipe-base contextswich case tested on Kunpeng 920B. Test case: ./Run context1 -c `nproc` -i 3 Unixbench results (Pipe-based_Context_Switching): baseline patched 4.5w 8.5w Test on Kunpeng 920B Fixes: bb29df9fb065 ("sched/fair: Introduce SIS_UTIL to search idle CPU...") Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/features.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 83f524cea64d..1b789ae9079c 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -54,8 +54,8 @@ SCHED_FEAT(TTWU_QUEUE, true) /* * When doing wakeups, attempt to limit superfluous scans of the LLC domain. */ -SCHED_FEAT(SIS_PROP, false) -SCHED_FEAT(SIS_UTIL, true) +SCHED_FEAT(SIS_PROP, true) +SCHED_FEAT(SIS_UTIL, false) #ifdef CONFIG_SCHED_STEAL /* -- 2.34.1

2 1

[PATCH OLK-6.6] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 23 Jun '24

23 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> stable inclusion from stable-v6.6.33 commit 1abb371147905ba250b4cc0230c4be7e90bea4d5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc ] syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> 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/bridge/br_device.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 9a5ea06236bd..42d4c3727bf7 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -27,6 +27,7 @@ EXPORT_SYMBOL_GPL(nf_br_ops); /* net device transmit always called with BH disabled */ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) { + enum skb_drop_reason reason = pskb_may_pull_reason(skb, ETH_HLEN); struct net_bridge_mcast_port *pmctx_null = NULL; struct net_bridge *br = netdev_priv(dev); struct net_bridge_mcast *brmctx = &br->multicast_ctx; @@ -38,6 +39,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(reason != SKB_NOT_DROPPED_YET)) { + kfree_skb_reason(skb, reason); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); br_tc_skb_miss_set(skb, false); -- 2.34.1

2 1

[PATCH OLK-6.6] net: sched: sch_multiq: fix possible OOB write in multiq_tune()
by Zhengchao Shao 23 Jun '24

23 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> stable inclusion from stable-v6.6.35 commit 54c2c171c11a798fe887b3ff72922aa9d1411c1e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6R4J CVE: CVE-2024-36978 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit affc18fdc694190ca7575b9a86632a73b9fe043d ] q->bands will be assigned to qopt->bands to execute subsequent code logic after kmalloc. So the old q->bands should not be used in kmalloc. Otherwise, an out-of-bounds write will occur. Fixes: c2999f7fb05b ("net: sched: multiq: don't call qdisc_put() while holding tree lock") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Cong Wang <cong.wang(a)bytedance.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/sched/sch_multiq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index 75c9c860182b..0d6649d937c9 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -185,7 +185,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt, qopt->bands = qdisc_dev(sch)->real_num_tx_queues; - removed = kmalloc(sizeof(*removed) * (q->max_bands - q->bands), + removed = kmalloc(sizeof(*removed) * (q->max_bands - qopt->bands), GFP_KERNEL); if (!removed) return -ENOMEM; -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/4] round lts patches
by Zhengchao Shao 23 Jun '24

23 Jun '24

Round lts patches. David Bauer (1): net l2tp: drop flow hash on forward Felix Fietkau (2): net: bridge: fix multicast-to-unicast with fraglist GSO net: bridge: fix corrupted ethernet header on multicast-to-unicast linke li (1): net: mark racy access on sk->sk_rcvbuf net/bridge/br_forward.c | 9 +++++++-- net/core/sock.c | 4 ++-- net/l2tp/l2tp_eth.c | 3 +++ 3 files changed, 12 insertions(+), 4 deletions(-) -- 2.34.1

2 5

[openeuler:openEuler-1.0-LTS 21291/23028] drivers/spi/spi-phytium-plat.c:186:34: warning: unused variable 'phytium_spi_of_match'
by kernel test robot 23 Jun '24

23 Jun '24

Hi Malloy, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 10a294b680ddfda97a09883fe559dd418e5340cd commit: e8483fcd43fc1dbb8d21bb7eacce804cbab6a7c6 [21291/23028] spi: add phytium spi support config: x86_64-randconfig-005-20240420 (https://download.01.org/0day-ci/archive/20240623/202406230104.pOYbvQkT-lkp@…) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240623/202406230104.pOYbvQkT-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/202406230104.pOYbvQkT-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/spi/spi-phytium-plat.c:186:34: warning: unused variable 'phytium_spi_of_match' [-Wunused-const-variable] 186 | static const struct of_device_id phytium_spi_of_match[] = { | ^~~~~~~~~~~~~~~~~~~~ 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SPI_PHYTIUM Depends on [n]: SPI [=y] && SPI_MASTER [=y] && (ARCH_PHYTIUM || COMPILE_TEST [=n]) Selected by [y]: - SPI_PHYTIUM_PLAT [=y] && SPI [=y] && SPI_MASTER [=y] vim +/phytium_spi_of_match +186 drivers/spi/spi-phytium-plat.c 185 > 186 static const struct of_device_id phytium_spi_of_match[] = { 187 { .compatible = "phytium,spi", .data = (void *)0 }, 188 { /* end of table */} 189 }; 190 MODULE_DEVICE_TABLE(of, phytium_spi_of_match); 191 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 18534/23028] drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed.
by kernel test robot 22 Jun '24

22 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 10a294b680ddfda97a09883fe559dd418e5340cd commit: b8815fbbe89b0d15fa3296c3e57d2197a92f5bc0 [18534/23028] ACPI: CPPC: Fix cppc_cpufreq_init failed in CPU Hotplug situation config: x86_64-randconfig-103-20240609 (https://download.01.org/0day-ci/archive/20240622/202406222234.Hz8OPmay-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/202406222234.Hz8OPmay-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

[openeuler:openEuler-1.0-LTS 18175/23028] mm/debug.c:174:3: warning: format specifies type 'void *' but the argument has type 'int'
by kernel test robot 22 Jun '24

22 Jun '24

Hi Ding, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 10a294b680ddfda97a09883fe559dd418e5340cd commit: 2d2fe6b40444bd8f84f674930ac5f98a6314702e [18175/23028] ascend: mm: add an owner for mm_struct config: x86_64-randconfig-005-20240420 (https://download.01.org/0day-ci/archive/20240622/202406222208.eM7WX2QL-lkp@…) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240622/202406222208.eM7WX2QL-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/202406222208.eM7WX2QL-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/debug.c:14: In file included from include/linux/migrate.h:6: In file included from include/linux/mempolicy.h:16: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> mm/debug.c:174:3: warning: format specifies type 'void *' but the argument has type 'int' [-Wformat] 135 | atomic_read(&mm->tlb_flush_pending), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:175:3: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat] 142 | mm->def_flags, &mm->def_flags | ^~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:175:18: warning: format specifies type 'unsigned long' but the argument has type 'const unsigned long *' [-Wformat] 143 | mm->def_flags, &mm->def_flags | ^~~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:143:21: warning: more '%' conversions than data arguments [-Wformat-insufficient-args] 143 | "def_flags: %#lx(%pGv)\n", | ~^ include/linux/printk.h:342:27: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/printk.h:332:21: note: expanded from macro 'pr_fmt' 332 | #define pr_fmt(fmt) fmt | ^~~ 5 warnings generated. vim +174 mm/debug.c 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 @14 #include <linux/migrate.h> 4e462112e98f9a Vlastimil Babka 2016-03-15 15 #include <linux/page_owner.h> 82742a3a515219 Sasha Levin 2014-10-09 16 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 17 #include "internal.h" edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 18 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 19 char *migrate_reason_names[MR_TYPES] = { 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 20 "compaction", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 21 "memory_failure", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 22 "memory_hotplug", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 23 "syscall_or_cpuset", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 24 "mempolicy_mbind", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 25 "numa_misplaced", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 26 "cma", 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 27 }; 7cd12b4abfd2f8 Vlastimil Babka 2016-03-15 28 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 29 const struct trace_print_flags pageflag_names[] = { edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 30 __def_pageflag_names, edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 31 {0, NULL} edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 32 }; edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 33 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 34 const struct trace_print_flags gfpflag_names[] = { edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 35 __def_gfpflag_names, edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 36 {0, NULL} 420adbe9fc1a45 Vlastimil Babka 2016-03-15 37 }; 420adbe9fc1a45 Vlastimil Babka 2016-03-15 38 edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 39 const struct trace_print_flags vmaflag_names[] = { edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 40 __def_vmaflag_names, edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 41 {0, NULL} 82742a3a515219 Sasha Levin 2014-10-09 42 }; 82742a3a515219 Sasha Levin 2014-10-09 43 ff8e81163889ac Vlastimil Babka 2016-03-15 44 void __dump_page(struct page *page, const char *reason) 82742a3a515219 Sasha Levin 2014-10-09 45 { fc36def997cfd6 Pavel Tatashin 2018-07-03 46 bool page_poisoned = PagePoisoned(page); fc36def997cfd6 Pavel Tatashin 2018-07-03 47 int mapcount; fc36def997cfd6 Pavel Tatashin 2018-07-03 48 fc36def997cfd6 Pavel Tatashin 2018-07-03 49 /* fc36def997cfd6 Pavel Tatashin 2018-07-03 50 * If struct page is poisoned don't access Page*() functions as that fc36def997cfd6 Pavel Tatashin 2018-07-03 51 * leads to recursive loop. Page*() check for poisoned pages, and calls fc36def997cfd6 Pavel Tatashin 2018-07-03 52 * dump_page() when detected. fc36def997cfd6 Pavel Tatashin 2018-07-03 53 */ fc36def997cfd6 Pavel Tatashin 2018-07-03 54 if (page_poisoned) { fc36def997cfd6 Pavel Tatashin 2018-07-03 55 pr_emerg("page:%px is uninitialized and poisoned", page); fc36def997cfd6 Pavel Tatashin 2018-07-03 56 goto hex_only; fc36def997cfd6 Pavel Tatashin 2018-07-03 57 } fc36def997cfd6 Pavel Tatashin 2018-07-03 58 9996f05eac0981 Kirill A. Shutemov 2016-10-07 59 /* 9996f05eac0981 Kirill A. Shutemov 2016-10-07 60 * Avoid VM_BUG_ON() in page_mapcount(). 9996f05eac0981 Kirill A. Shutemov 2016-10-07 61 * page->_mapcount space in struct page is used by sl[aou]b pages to 9996f05eac0981 Kirill A. Shutemov 2016-10-07 62 * encode own info. 9996f05eac0981 Kirill A. Shutemov 2016-10-07 63 */ fc36def997cfd6 Pavel Tatashin 2018-07-03 64 mapcount = PageSlab(page) ? 0 : page_mapcount(page); 4d35427ad7641c Kirill A. Shutemov 2016-09-19 65 152a2d199e1385 Matthew Wilcox 2018-01-04 66 pr_emerg("page:%px count:%d mapcount:%d mapping:%px index:%#lx", 4d35427ad7641c Kirill A. Shutemov 2016-09-19 67 page, page_ref_count(page), mapcount, 4d35427ad7641c Kirill A. Shutemov 2016-09-19 68 page->mapping, page_to_pgoff(page)); 53f9263baba69f Kirill A. Shutemov 2016-01-15 69 if (PageCompound(page)) 53f9263baba69f Kirill A. Shutemov 2016-01-15 70 pr_cont(" compound_mapcount: %d", compound_mapcount(page)); 53f9263baba69f Kirill A. Shutemov 2016-01-15 71 pr_cont("\n"); edf14cdbf9a0e5 Vlastimil Babka 2016-03-15 72 BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1); ff8e81163889ac Vlastimil Babka 2016-03-15 73 b8eceeb99014cf Vlastimil Babka 2016-03-15 74 pr_emerg("flags: %#lx(%pGp)\n", page->flags, &page->flags); b8eceeb99014cf Vlastimil Babka 2016-03-15 75 fc36def997cfd6 Pavel Tatashin 2018-07-03 76 hex_only: 46e8a3a08c23d0 Vlastimil Babka 2016-12-12 77 print_hex_dump(KERN_ALERT, "raw: ", DUMP_PREFIX_NONE, 32, 46e8a3a08c23d0 Vlastimil Babka 2016-12-12 78 sizeof(unsigned long), page, 46e8a3a08c23d0 Vlastimil Babka 2016-12-12 79 sizeof(struct page), false); 46e8a3a08c23d0 Vlastimil Babka 2016-12-12 80 82742a3a515219 Sasha Levin 2014-10-09 81 if (reason) 82742a3a515219 Sasha Levin 2014-10-09 82 pr_alert("page dumped because: %s\n", reason); b8eceeb99014cf Vlastimil Babka 2016-03-15 83 9edad6ea0f1416 Johannes Weiner 2014-12-10 84 #ifdef CONFIG_MEMCG fc36def997cfd6 Pavel Tatashin 2018-07-03 85 if (!page_poisoned && page->mem_cgroup) 152a2d199e1385 Matthew Wilcox 2018-01-04 86 pr_alert("page->mem_cgroup:%px\n", page->mem_cgroup); 9edad6ea0f1416 Johannes Weiner 2014-12-10 87 #endif 82742a3a515219 Sasha Levin 2014-10-09 88 } 82742a3a515219 Sasha Levin 2014-10-09 89 82742a3a515219 Sasha Levin 2014-10-09 90 void dump_page(struct page *page, const char *reason) 82742a3a515219 Sasha Levin 2014-10-09 91 { ff8e81163889ac Vlastimil Babka 2016-03-15 92 __dump_page(page, reason); 4e462112e98f9a Vlastimil Babka 2016-03-15 93 dump_page_owner(page); 82742a3a515219 Sasha Levin 2014-10-09 94 } 82742a3a515219 Sasha Levin 2014-10-09 95 EXPORT_SYMBOL(dump_page); 82742a3a515219 Sasha Levin 2014-10-09 96 82742a3a515219 Sasha Levin 2014-10-09 97 #ifdef CONFIG_DEBUG_VM 82742a3a515219 Sasha Levin 2014-10-09 98 82742a3a515219 Sasha Levin 2014-10-09 99 void dump_vma(const struct vm_area_struct *vma) 82742a3a515219 Sasha Levin 2014-10-09 100 { 152a2d199e1385 Matthew Wilcox 2018-01-04 101 pr_emerg("vma %px start %px end %px\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 102 "next %px prev %px mm %px\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 103 "prot %lx anon_vma %px vm_ops %px\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 104 "pgoff %lx file %px private_data %px\n" b8eceeb99014cf Vlastimil Babka 2016-03-15 105 "flags: %#lx(%pGv)\n", 82742a3a515219 Sasha Levin 2014-10-09 106 vma, (void *)vma->vm_start, (void *)vma->vm_end, vma->vm_next, 82742a3a515219 Sasha Levin 2014-10-09 107 vma->vm_prev, vma->vm_mm, 82742a3a515219 Sasha Levin 2014-10-09 108 (unsigned long)pgprot_val(vma->vm_page_prot), 82742a3a515219 Sasha Levin 2014-10-09 109 vma->anon_vma, vma->vm_ops, vma->vm_pgoff, b8eceeb99014cf Vlastimil Babka 2016-03-15 110 vma->vm_file, vma->vm_private_data, b8eceeb99014cf Vlastimil Babka 2016-03-15 111 vma->vm_flags, &vma->vm_flags); 82742a3a515219 Sasha Levin 2014-10-09 112 } 82742a3a515219 Sasha Levin 2014-10-09 113 EXPORT_SYMBOL(dump_vma); 82742a3a515219 Sasha Levin 2014-10-09 114 31c9afa6db122a Sasha Levin 2014-10-09 115 void dump_mm(const struct mm_struct *mm) 31c9afa6db122a Sasha Levin 2014-10-09 116 { 7a9cdebdcc17e4 Linus Torvalds 2018-09-12 117 pr_emerg("mm %px mmap %px seqnum %llu task_size %lu\n" 31c9afa6db122a Sasha Levin 2014-10-09 118 #ifdef CONFIG_MMU 152a2d199e1385 Matthew Wilcox 2018-01-04 119 "get_unmapped_area %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 120 #endif 31c9afa6db122a Sasha Levin 2014-10-09 121 "mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 122 "pgd %px mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n" 31c9afa6db122a Sasha Levin 2014-10-09 123 "hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n" 84638335900f19 Konstantin Khlebnikov 2016-01-14 124 "pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 125 "start_code %lx end_code %lx start_data %lx end_data %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 126 "start_brk %lx brk %lx start_stack %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 127 "arg_start %lx arg_end %lx env_start %lx env_end %lx\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 128 "binfmt %px flags %lx core_state %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 129 #ifdef CONFIG_AIO 152a2d199e1385 Matthew Wilcox 2018-01-04 130 "ioctx_table %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 131 #endif 2d2fe6b40444bd Ding Tianhong 2021-10-30 132 #ifdef CONFIG_MM_OWNER 152a2d199e1385 Matthew Wilcox 2018-01-04 133 "owner %px " 31c9afa6db122a Sasha Levin 2014-10-09 134 #endif 152a2d199e1385 Matthew Wilcox 2018-01-04 135 "exe_file %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 136 #ifdef CONFIG_MMU_NOTIFIER 152a2d199e1385 Matthew Wilcox 2018-01-04 137 "mmu_notifier_mm %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 138 #endif 31c9afa6db122a Sasha Levin 2014-10-09 139 #ifdef CONFIG_NUMA_BALANCING 31c9afa6db122a Sasha Levin 2014-10-09 140 "numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n" 31c9afa6db122a Sasha Levin 2014-10-09 141 #endif 31c9afa6db122a Sasha Levin 2014-10-09 142 "tlb_flush_pending %d\n" b8eceeb99014cf Vlastimil Babka 2016-03-15 @143 "def_flags: %#lx(%pGv)\n", 31c9afa6db122a Sasha Levin 2014-10-09 144 7a9cdebdcc17e4 Linus Torvalds 2018-09-12 145 mm, mm->mmap, (long long) mm->vmacache_seqnum, mm->task_size, 31c9afa6db122a Sasha Levin 2014-10-09 146 #ifdef CONFIG_MMU 31c9afa6db122a Sasha Levin 2014-10-09 147 mm->get_unmapped_area, 31c9afa6db122a Sasha Levin 2014-10-09 148 #endif 31c9afa6db122a Sasha Levin 2014-10-09 149 mm->mmap_base, mm->mmap_legacy_base, mm->highest_vm_end, 31c9afa6db122a Sasha Levin 2014-10-09 150 mm->pgd, atomic_read(&mm->mm_users), 31c9afa6db122a Sasha Levin 2014-10-09 151 atomic_read(&mm->mm_count), af5b0f6a09e42c Kirill A. Shutemov 2017-11-15 152 mm_pgtables_bytes(mm), 31c9afa6db122a Sasha Levin 2014-10-09 153 mm->map_count, 53f4e528406789 Daniel Jordan 2019-08-14 154 mm->hiwater_rss, mm->hiwater_vm, mm->total_vm, 53f4e528406789 Daniel Jordan 2019-08-14 155 atomic_long_read(&mm->locked_vm), 84638335900f19 Konstantin Khlebnikov 2016-01-14 156 mm->pinned_vm, mm->data_vm, mm->exec_vm, mm->stack_vm, 31c9afa6db122a Sasha Levin 2014-10-09 157 mm->start_code, mm->end_code, mm->start_data, mm->end_data, 31c9afa6db122a Sasha Levin 2014-10-09 158 mm->start_brk, mm->brk, mm->start_stack, 31c9afa6db122a Sasha Levin 2014-10-09 159 mm->arg_start, mm->arg_end, mm->env_start, mm->env_end, 31c9afa6db122a Sasha Levin 2014-10-09 160 mm->binfmt, mm->flags, mm->core_state, 31c9afa6db122a Sasha Levin 2014-10-09 161 #ifdef CONFIG_AIO 31c9afa6db122a Sasha Levin 2014-10-09 162 mm->ioctx_table, 31c9afa6db122a Sasha Levin 2014-10-09 163 #endif 31c9afa6db122a Sasha Levin 2014-10-09 164 #ifdef CONFIG_MEMCG 31c9afa6db122a Sasha Levin 2014-10-09 165 mm->owner, 31c9afa6db122a Sasha Levin 2014-10-09 166 #endif 31c9afa6db122a Sasha Levin 2014-10-09 167 mm->exe_file, 31c9afa6db122a Sasha Levin 2014-10-09 168 #ifdef CONFIG_MMU_NOTIFIER 31c9afa6db122a Sasha Levin 2014-10-09 169 mm->mmu_notifier_mm, 31c9afa6db122a Sasha Levin 2014-10-09 170 #endif 31c9afa6db122a Sasha Levin 2014-10-09 171 #ifdef CONFIG_NUMA_BALANCING 31c9afa6db122a Sasha Levin 2014-10-09 172 mm->numa_next_scan, mm->numa_scan_offset, mm->numa_scan_seq, 31c9afa6db122a Sasha Levin 2014-10-09 173 #endif 16af97dc5a8975 Nadav Amit 2017-08-10 @174 atomic_read(&mm->tlb_flush_pending), b8eceeb99014cf Vlastimil Babka 2016-03-15 @175 mm->def_flags, &mm->def_flags 31c9afa6db122a Sasha Levin 2014-10-09 176 ); 31c9afa6db122a Sasha Levin 2014-10-09 177 } 31c9afa6db122a Sasha Levin 2014-10-09 178 :::::: The code at line 174 was first introduced by commit :::::: 16af97dc5a8975371a83d9e30a64038b48f40a2d mm: migrate: prevent racy access to tlb_flush_pending :::::: TO: Nadav Amit <nadav.amit(a)gmail.com> :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 13138/23028] kernel/livepatch/core.c:75:16: warning: no previous prototype for function 'klp_check_patch_kprobed'
by kernel test robot 22 Jun '24

22 Jun '24

Hi Cheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 10a294b680ddfda97a09883fe559dd418e5340cd commit: 7e2ab91ea07673f855f16b54b7c6e6853b2efc1c [13138/23028] livepatch/x86: support livepatch without ftrace config: x86_64-randconfig-073-20240521 (https://download.01.org/0day-ci/archive/20240622/202406222109.fcYovgIQ-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240622/202406222109.fcYovgIQ-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/202406222109.fcYovgIQ-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/livepatch/core.c:75:16: warning: no previous prototype for function 'klp_check_patch_kprobed' [-Wmissing-prototypes] 75 | struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) | ^ kernel/livepatch/core.c:75:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 75 | struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) | ^ | static kernel/livepatch/core.c:402:5: warning: no previous prototype for function 'klp_try_disable_patch' [-Wmissing-prototypes] 402 | int klp_try_disable_patch(void *data) | ^ kernel/livepatch/core.c:402:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 402 | int klp_try_disable_patch(void *data) | ^ | static kernel/livepatch/core.c:441:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] 441 | void __weak arch_klp_code_modify_prepare(void) | ^ kernel/livepatch/core.c:441:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 441 | void __weak arch_klp_code_modify_prepare(void) | ^ | static kernel/livepatch/core.c:445:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] 445 | void __weak arch_klp_code_modify_post_process(void) | ^ kernel/livepatch/core.c:445:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 445 | void __weak arch_klp_code_modify_post_process(void) | ^ | static kernel/livepatch/core.c:617:5: warning: no previous prototype for function 'klp_try_enable_patch' [-Wmissing-prototypes] 617 | int klp_try_enable_patch(void *data) | ^ kernel/livepatch/core.c:617:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 617 | int klp_try_enable_patch(void *data) | ^ | static kernel/livepatch/core.c:1013:12: warning: no previous prototype for function 'arch_klp_func_can_patch' [-Wmissing-prototypes] 1013 | int __weak arch_klp_func_can_patch(struct klp_func *func) | ^ kernel/livepatch/core.c:1013:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1013 | int __weak arch_klp_func_can_patch(struct klp_func *func) | ^ | static 6 warnings generated. vim +/klp_check_patch_kprobed +75 kernel/livepatch/core.c 7e8d223e3ef865 Cheng Jian 2019-01-28 69 c8f9d7a3aae362 Cheng Jian 2019-01-28 70 #ifdef CONFIG_LIVEPATCH_RESTRICT_KPROBE c8f9d7a3aae362 Cheng Jian 2019-01-28 71 /* c8f9d7a3aae362 Cheng Jian 2019-01-28 72 * Check whether a function has been registered with kprobes before patched. c8f9d7a3aae362 Cheng Jian 2019-01-28 73 * We can't patched this function util we unregisted the kprobes. c8f9d7a3aae362 Cheng Jian 2019-01-28 74 */ c8f9d7a3aae362 Cheng Jian 2019-01-28 @75 struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) c8f9d7a3aae362 Cheng Jian 2019-01-28 76 { c8f9d7a3aae362 Cheng Jian 2019-01-28 77 struct klp_object *obj; c8f9d7a3aae362 Cheng Jian 2019-01-28 78 struct klp_func *func; c8f9d7a3aae362 Cheng Jian 2019-01-28 79 struct kprobe *kp; c8f9d7a3aae362 Cheng Jian 2019-01-28 80 int i; c8f9d7a3aae362 Cheng Jian 2019-01-28 81 c8f9d7a3aae362 Cheng Jian 2019-01-28 82 klp_for_each_object(patch, obj) { c8f9d7a3aae362 Cheng Jian 2019-01-28 83 klp_for_each_func(obj, func) { c8f9d7a3aae362 Cheng Jian 2019-01-28 84 for (i = 0; i < func->old_size; i++) { c8f9d7a3aae362 Cheng Jian 2019-01-28 85 kp = get_kprobe((void *)func->old_addr + i); c8f9d7a3aae362 Cheng Jian 2019-01-28 86 if (kp) { c8f9d7a3aae362 Cheng Jian 2019-01-28 87 pr_err("func %s has been probed, (un)patch failed\n", c8f9d7a3aae362 Cheng Jian 2019-01-28 88 func->old_name); c8f9d7a3aae362 Cheng Jian 2019-01-28 89 return kp; c8f9d7a3aae362 Cheng Jian 2019-01-28 90 } c8f9d7a3aae362 Cheng Jian 2019-01-28 91 } c8f9d7a3aae362 Cheng Jian 2019-01-28 92 } c8f9d7a3aae362 Cheng Jian 2019-01-28 93 } c8f9d7a3aae362 Cheng Jian 2019-01-28 94 c8f9d7a3aae362 Cheng Jian 2019-01-28 95 return NULL; c8f9d7a3aae362 Cheng Jian 2019-01-28 96 } c8f9d7a3aae362 Cheng Jian 2019-01-28 97 #else c8f9d7a3aae362 Cheng Jian 2019-01-28 98 static inline struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) c8f9d7a3aae362 Cheng Jian 2019-01-28 99 { c8f9d7a3aae362 Cheng Jian 2019-01-28 100 return NULL; c8f9d7a3aae362 Cheng Jian 2019-01-28 101 } c8f9d7a3aae362 Cheng Jian 2019-01-28 102 #endif /* CONFIG_LIVEPATCH_RESTRICT_KPROBE */ c8f9d7a3aae362 Cheng Jian 2019-01-28 103 :::::: The code at line 75 was first introduced by commit :::::: c8f9d7a3aae362482f81ba7c6819d410d66619ab livepatch/core: Restrict livepatch patched/unpatched when plant kprobe :::::: TO: Cheng Jian <cj.chengjian(a)huawei.com> :::::: CC: Xie XiuQi <xiexiuqi(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-22.03-LTS] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit cc121e3722a0a2c8f716ef991e5425b180a5fb94 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L CVE: CVE-2024-38634 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 5

[PATCH openEuler-22.03-LTS] tty: n_gsm: fix the UAF caused by race condition in gsm_cleanup_mux
by Yi Yang 22 Jun '24

22 Jun '24

stable inclusion from stable-v5.10.192 commit 869ce5e5984595bd2c62b598d977debc218b6f4d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8QFUO CVE: CVE-2023-6546 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 3c4f8333b582487a2d1e02171f1465531cde53e3 upstream. In commit 9b9c8195f3f0 ("tty: n_gsm: fix UAF in gsm_cleanup_mux"), the UAF problem is not completely fixed. There is a race condition in gsm_cleanup_mux(), which caused this UAF. The UAF problem is triggered by the following race: task[5046] task[5054] ----------------------- ----------------------- gsm_cleanup_mux(); dlci = gsm->dlci[0]; mutex_lock(&gsm->mutex); gsm_cleanup_mux(); dlci = gsm->dlci[0]; //Didn't take the lock gsm_dlci_release(gsm->dlci[i]); gsm->dlci[i] = NULL; mutex_unlock(&gsm->mutex); mutex_lock(&gsm->mutex); dlci->dead = true; //UAF Fix it by assigning values after mutex_lock(). Link: https://syzkaller.appspot.com/text?tag=CrashReport&x=176188b5a80000 Cc: stable <stable(a)kernel.org> Fixes: 9b9c8195f3f0 ("tty: n_gsm: fix UAF in gsm_cleanup_mux") Fixes: aa371e96f05d ("tty: n_gsm: fix restart handling via CLD command") Signed-off-by: Yi Yang <yiyang13(a)huawei.com> Co-developed-by: Qiumiao Zhang <zhangqiumiao1(a)huawei.com> Signed-off-by: Qiumiao Zhang <zhangqiumiao1(a)huawei.com> Link: https://lore.kernel.org/r/20230811031121.153237-1-yiyang13@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/n_gsm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index cb5ed4155a8d..2e446b34160f 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2158,12 +2158,13 @@ static void gsm_error(struct gsm_mux *gsm, static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc) { int i; - struct gsm_dlci *dlci = gsm->dlci[0]; + struct gsm_dlci *dlci; struct gsm_msg *txq, *ntxq; gsm->dead = true; mutex_lock(&gsm->mutex); + dlci = gsm->dlci[0]; if (dlci) { if (disc && dlci->state != DLCI_CLOSED) { gsm_dlci_begin_close(dlci); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] firmware: arm_scpi: Fix string overflow in SCPI genpd driver
by Yi Yang 22 Jun '24

22 Jun '24

From: Sudeep Holla <sudeep.holla(a)arm.com> stable inclusion from stable-v4.19.222 commit 7e8645ca2c0046f7cd2f0f7d569fc036c8abaedb category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SID CVE: CVE-2021-47609 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 865ed67ab955428b9aa771d8b4f1e4fb7fd08945 upstream. Without the bound checks for scpi_pd->name, it could result in the buffer overflow when copying the SCPI device name from the corresponding device tree node as the name string is set at maximum size of 30. Let us fix it by using devm_kasprintf so that the string buffer is allocated dynamically. Fixes: 8bec4337ad40 ("firmware: scpi: add device power domain support using genpd") Reported-by: Pedro Batista <pedbap.g(a)gmail.com> Signed-off-by: Sudeep Holla <sudeep.holla(a)arm.com> Cc: stable(a)vger.kernel.org Cc: Cristian Marussi <cristian.marussi(a)arm.com> Link: https://lore.kernel.org/r/20211209120456.696879-1-sudeep.holla@arm.com' Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/firmware/scpi_pm_domain.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/scpi_pm_domain.c b/drivers/firmware/scpi_pm_domain.c index f395dec27113..a6e62a793fbe 100644 --- a/drivers/firmware/scpi_pm_domain.c +++ b/drivers/firmware/scpi_pm_domain.c @@ -27,7 +27,6 @@ struct scpi_pm_domain { struct generic_pm_domain genpd; struct scpi_ops *ops; u32 domain; - char name[30]; }; /* @@ -121,8 +120,13 @@ static int scpi_pm_domain_probe(struct platform_device *pdev) scpi_pd->domain = i; scpi_pd->ops = scpi_ops; - sprintf(scpi_pd->name, "%s.%d", np->name, i); - scpi_pd->genpd.name = scpi_pd->name; + scpi_pd->genpd.name = devm_kasprintf(dev, GFP_KERNEL, + "%s.%d", np->name, i); + if (!scpi_pd->genpd.name) { + dev_err(dev, "Failed to allocate genpd name:%s.%d\n", + np->name, i); + continue; + } scpi_pd->genpd.power_off = scpi_pd_power_off; scpi_pd->genpd.power_on = scpi_pd_power_on; -- 2.25.1

2 1

[PATCH OLK-6.6] net: ti: icssg_prueth: Fix NULL pointer dereference in prueth_probe()
by Yi Yang 22 Jun '24

22 Jun '24

From: Romain Gantois <romain.gantois(a)bootlin.com> stable inclusion from stable-v6.6.33 commit 5cd17f0e74cb99d209945b9f1f06d411aa667eb1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S9N CVE: CVE-2024-38584 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit b31c7e78086127a7fcaa761e8d336ee855a920c6 upstream. In the prueth_probe() function, if one of the calls to emac_phy_connect() fails due to of_phy_connect() returning NULL, then the subsequent call to phy_attached_info() will dereference a NULL pointer. Check the return code of emac_phy_connect and fail cleanly if there is an error. Fixes: 128d5874c082 ("net: ti: icssg-prueth: Add ICSSG ethernet driver") Cc: stable(a)vger.kernel.org Signed-off-by: Romain Gantois <romain.gantois(a)bootlin.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: MD Danish Anwar <danishanwar(a)ti.com> Link: https://lore.kernel.org/r/20240521-icssg-prueth-fix-v1-1-b4b17b1433e9@bootl… Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/net/ethernet/ti/icssg/icssg_prueth.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c index 925044c16c6a..fb120baee553 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c @@ -2136,7 +2136,12 @@ static int prueth_probe(struct platform_device *pdev) prueth->registered_netdevs[PRUETH_MAC0] = prueth->emac[PRUETH_MAC0]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC0]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC0]); + if (ret) { + dev_err(dev, + "can't connect to MII0 PHY, error -%d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC0]->ndev->phydev); } @@ -2148,7 +2153,12 @@ static int prueth_probe(struct platform_device *pdev) } prueth->registered_netdevs[PRUETH_MAC1] = prueth->emac[PRUETH_MAC1]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC1]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC1]); + if (ret) { + dev_err(dev, + "can't connect to MII1 PHY, error %d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC1]->ndev->phydev); } -- 2.25.1

2 1

[PATCH OLK-6.6] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v6.6.33 commit 93df2fba6c7dfa9a2f08546ea9a5ca4728758458 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L CVE: CVE-2024-38634 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 5efb2b593be3..45022f2909f0 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int status = 0; int ret = 0, cts; @@ -254,6 +254,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v4.19.316 commit 44b38924135d2093e2ec1812969464845dd66dc9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L CVE: CVE-2024-38634 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH OLK-5.10] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit cc121e3722a0a2c8f716ef991e5425b180a5fb94 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L CVE: CVE-2024-38634 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH OLK-5.10] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v5.10.219 commit cc121e3722a0a2c8f716ef991e5425b180a5fb94 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v4.19.316 commit 44b38924135d2093e2ec1812969464845dd66dc9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 371569a0fd00..915d7753eec2 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int ch, flg, status = 0; int ret = 0, cts; @@ -253,6 +253,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH OLK-6.6] serial: max3100: Lock port->lock when calling uart_handle_cts_change()
by Yi Yang 22 Jun '24

22 Jun '24

From: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> stable inclusion from stable-v6.6.33 commit 93df2fba6c7dfa9a2f08546ea9a5ca4728758458 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D3L Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 77ab53371a2066fdf9b895246505f5ef5a4b5d47 ] uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100] Fixes: 7831d56b0a35 ("tty: MAX3100") Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> Link: https://lore.kernel.org/r/20240402195306.269276-2-andriy.shevchenko@linux.i… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/tty/serial/max3100.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 5efb2b593be3..45022f2909f0 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -213,7 +213,7 @@ static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx) return 0; } -static int max3100_handlerx(struct max3100_port *s, u16 rx) +static int max3100_handlerx_unlocked(struct max3100_port *s, u16 rx) { unsigned int status = 0; int ret = 0, cts; @@ -254,6 +254,17 @@ static int max3100_handlerx(struct max3100_port *s, u16 rx) return ret; } +static int max3100_handlerx(struct max3100_port *s, u16 rx) +{ + unsigned long flags; + int ret; + + uart_port_lock_irqsave(&s->port, &flags); + ret = max3100_handlerx_unlocked(s, rx); + uart_port_unlock_irqrestore(&s->port, flags); + return ret; +} + static void max3100_work(struct work_struct *w) { struct max3100_port *s = container_of(w, struct max3100_port, work); -- 2.25.1

2 1

[PATCH OLK-6.6] net: ti: icssg_prueth: Fix NULL pointer dereference in prueth_probe()
by Yi Yang 22 Jun '24

22 Jun '24

From: Romain Gantois <romain.gantois(a)bootlin.com> stable inclusion from stable-v6.6.33 commit 5cd17f0e74cb99d209945b9f1f06d411aa667eb1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S9N Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit b31c7e78086127a7fcaa761e8d336ee855a920c6 upstream. In the prueth_probe() function, if one of the calls to emac_phy_connect() fails due to of_phy_connect() returning NULL, then the subsequent call to phy_attached_info() will dereference a NULL pointer. Check the return code of emac_phy_connect and fail cleanly if there is an error. Fixes: 128d5874c082 ("net: ti: icssg-prueth: Add ICSSG ethernet driver") Cc: stable(a)vger.kernel.org Signed-off-by: Romain Gantois <romain.gantois(a)bootlin.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: MD Danish Anwar <danishanwar(a)ti.com> Link: https://lore.kernel.org/r/20240521-icssg-prueth-fix-v1-1-b4b17b1433e9@bootl… Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/net/ethernet/ti/icssg/icssg_prueth.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c index 925044c16c6a..fb120baee553 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c @@ -2136,7 +2136,12 @@ static int prueth_probe(struct platform_device *pdev) prueth->registered_netdevs[PRUETH_MAC0] = prueth->emac[PRUETH_MAC0]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC0]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC0]); + if (ret) { + dev_err(dev, + "can't connect to MII0 PHY, error -%d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC0]->ndev->phydev); } @@ -2148,7 +2153,12 @@ static int prueth_probe(struct platform_device *pdev) } prueth->registered_netdevs[PRUETH_MAC1] = prueth->emac[PRUETH_MAC1]->ndev; - emac_phy_connect(prueth->emac[PRUETH_MAC1]); + ret = emac_phy_connect(prueth->emac[PRUETH_MAC1]); + if (ret) { + dev_err(dev, + "can't connect to MII1 PHY, error %d", ret); + goto netdev_unregister; + } phy_attached_info(prueth->emac[PRUETH_MAC1]->ndev->phydev); } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP
by Liu Jian 22 Jun '24

22 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.10-rc3 commit f921a58ae20852d188f70842431ce6519c4fdc36 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6H2M CVE: CVE-2024-36974 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen. Fixes: a3d43c0d56f1 ("taprio: Add support adding an admin schedule") Reported-by: Noam Rathaus <noamr(a)ssd-disclosure.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes(a)intel.com> Reviewed-by: Vladimir Oltean <vladimir.oltean(a)nxp.com> Link: https://lore.kernel.org/r/20240604181511.769870-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/sched/sch_taprio.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index abef2e4d6000..8dd7e69e47bf 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -925,16 +925,13 @@ static int taprio_parse_mqprio_opt(struct net_device *dev, { int i, j; - if (!qopt && !dev->num_tc) { - NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); - return -EINVAL; - } - - /* If num_tc is already set, it means that the user already - * configured the mqprio part - */ - if (dev->num_tc) + if (!qopt) { + if (!dev->num_tc) { + NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); + return -EINVAL; + } return 0; + } /* Verify num_tc is not out of max range */ if (qopt->num_tc > TC_MAX_QUEUE) { -- 2.34.1

2 1

[PATCH OLK-5.10] net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP
by Liu Jian 22 Jun '24

22 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v6.10-rc3 commit f921a58ae20852d188f70842431ce6519c4fdc36 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6H2M CVE: CVE-2024-36974 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen. Fixes: a3d43c0d56f1 ("taprio: Add support adding an admin schedule") Reported-by: Noam Rathaus <noamr(a)ssd-disclosure.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes(a)intel.com> Reviewed-by: Vladimir Oltean <vladimir.oltean(a)nxp.com> Link: https://lore.kernel.org/r/20240604181511.769870-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/sched/sch_taprio.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index e25fe44899ff..41fa731e7c47 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -925,16 +925,13 @@ static int taprio_parse_mqprio_opt(struct net_device *dev, { int i, j; - if (!qopt && !dev->num_tc) { - NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); - return -EINVAL; - } - - /* If num_tc is already set, it means that the user already - * configured the mqprio part - */ - if (dev->num_tc) + if (!qopt) { + if (!dev->num_tc) { + NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); + return -EINVAL; + } return 0; + } /* Verify num_tc is not out of max range */ if (qopt->num_tc > TC_MAX_QUEUE) { -- 2.34.1

2 1

[PATCH OLK-6.6] net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP
by Liu Jian 22 Jun '24

22 Jun '24

From: Eric Dumazet <edumazet(a)google.com> stable inclusion from stable-v6.6.35 commit 724050ae4b76e4fae05a923cb54101d792cf4404 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6H2M CVE: CVE-2024-36974 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit f921a58ae20852d188f70842431ce6519c4fdc36 ] If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called. First call (with valid attributes) sets dev->num_tc to a non zero value. Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen. Fixes: a3d43c0d56f1 ("taprio: Add support adding an admin schedule") Reported-by: Noam Rathaus <noamr(a)ssd-disclosure.com> Signed-off-by: Eric Dumazet <edumazet(a)google.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes(a)intel.com> Reviewed-by: Vladimir Oltean <vladimir.oltean(a)nxp.com> Link: https://lore.kernel.org/r/20240604181511.769870-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/sched/sch_taprio.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index 87d8070fffbe..118473e5dea7 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -1186,16 +1186,13 @@ static int taprio_parse_mqprio_opt(struct net_device *dev, { bool allow_overlapping_txqs = TXTIME_ASSIST_IS_ENABLED(taprio_flags); - if (!qopt && !dev->num_tc) { - NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); - return -EINVAL; - } - - /* If num_tc is already set, it means that the user already - * configured the mqprio part - */ - if (dev->num_tc) + if (!qopt) { + if (!dev->num_tc) { + NL_SET_ERR_MSG(extack, "'mqprio' configuration is necessary"); + return -EINVAL; + } return 0; + } /* taprio imposes that traffic classes map 1:n to tx queues */ if (qopt->num_tc > dev->num_tx_queues) { -- 2.34.1

2 1

[PATCH OLK-6.6 0/7] Some folio bugfix
by Liu Shixin 22 Jun '24

22 Jun '24

Some folio bugfix. Andrew Bresticker (1): mm/memory: don't require head page for do_set_pmd() Baolin Wang (2): mm: support multi-size THP numa balancing mm: shmem: fix getting incorrect lruvec when replacing a shmem folio Hugh Dickins (1): mm/migrate: fix kernel BUG at mm/compaction.c:2761! Kefeng Wang (1): mm: fix possible OOB in numa_rebuild_large_mapping() Ran Xiaokai (1): mm: huge_memory: fix misused mapping_large_folio_support() for anon folios Zi Yan (1): mm/rmap: do not add fully unmapped large folio to deferred split list include/linux/pagemap.h | 4 +++ mm/huge_memory.c | 28 +++++++++------- mm/memcontrol.c | 3 +- mm/memory.c | 71 +++++++++++++++++++++++++++++++++-------- mm/migrate.c | 8 ++++- mm/mprotect.c | 3 +- mm/rmap.c | 13 ++++++-- mm/shmem.c | 2 +- 8 files changed, 100 insertions(+), 32 deletions(-) -- 2.25.1

2 8

[PATCH openEuler-1.0-LTS] ASoC: ops: Reject out of bounds values in snd_soc_put_xr_sx()
by Liu Chuang 22 Jun '24

22 Jun '24

From: Mark Brown <broonie(a)kernel.org> stable inclusion from stable-v4.19.228 commit 7659f25a80e6affb784b690df8994b79b4212fd4 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA72KY CVE: CVE-2022-48736 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit 4cf28e9ae6e2e11a044be1bcbcfa1b0d8675fe4d upstream. We don't currently validate that the values being set are within the range we advertised to userspace as being valid, do so and reject any values that are out of range. Signed-off-by: Mark Brown <broonie(a)kernel.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20220124153253.3548853-4-broonie@kernel.org Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- sound/soc/soc-ops.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index 3980b1727c49..ef8fd331526b 100644 --- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -910,6 +910,8 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, unsigned int i, regval, regmask; int err; + if (val < mc->min || val > mc->max) + return -EINVAL; if (invert) val = max - val; val &= mask; -- 2.34.1

2 1

[PATCH OLK-6.6] af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
by Liu Jian 22 Jun '24

22 Jun '24

From: Breno Leitao <leitao(a)debian.org> stable inclusion from stable-v6.6.33 commit 0688d4e499bee3f2749bca27329bd128686230cb category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SCO CVE: CVE-2024-38596 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 540bf24fba16b88c1b3b9353927204b4f1074e25 ] A data-race condition has been identified in af_unix. In one data path, the write function unix_release_sock() atomically writes to sk->sk_shutdown using WRITE_ONCE. However, on the reader side, unix_stream_sendmsg() does not read it atomically. Consequently, this issue is causing the following KCSAN splat to occur: BUG: KCSAN: data-race in unix_release_sock / unix_stream_sendmsg write (marked) to 0xffff88867256ddbb of 1 bytes by task 7270 on cpu 28: unix_release_sock (net/unix/af_unix.c:640) unix_release (net/unix/af_unix.c:1050) sock_close (net/socket.c:659 net/socket.c:1421) __fput (fs/file_table.c:422) __fput_sync (fs/file_table.c:508) __se_sys_close (fs/open.c:1559 fs/open.c:1541) __x64_sys_close (fs/open.c:1541) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) read to 0xffff88867256ddbb of 1 bytes by task 989 on cpu 14: unix_stream_sendmsg (net/unix/af_unix.c:2273) __sock_sendmsg (net/socket.c:730 net/socket.c:745) ____sys_sendmsg (net/socket.c:2584) __sys_sendmmsg (net/socket.c:2638 net/socket.c:2724) __x64_sys_sendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) value changed: 0x01 -> 0x03 The line numbers are related to commit dd5a440a31fa ("Linux 6.9-rc7"). Commit e1d09c2c2f57 ("af_unix: Fix data races around sk->sk_shutdown.") addressed a comparable issue in the past regarding sk->sk_shutdown. However, it overlooked resolving this particular data path. This patch only offending unix_stream_sendmsg() function, since the other reads seem to be protected by unix_state_lock() as discussed in Link: https://lore.kernel.org/all/20240508173324.53565-1-kuniyu@amazon.com/ Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Breno Leitao <leitao(a)debian.org> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240509081459.2807828-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/unix/af_unix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 6eab35a5e2f3..aaa4d7878b5d 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2199,7 +2199,7 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg, goto out_err; } - if (sk->sk_shutdown & SEND_SHUTDOWN) + if (READ_ONCE(sk->sk_shutdown) & SEND_SHUTDOWN) goto pipe_err; while (sent < len) { -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/3] CVE-2024-38596
by Liu Jian 22 Jun '24

22 Jun '24

CVE-2024-38596 Breno Leitao (1): af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg Kuniyuki Iwashima (2): af_unix: Fix data races around sk->sk_shutdown. af_unix: Fix data-races around sk->sk_shutdown. net/core/sock.c | 4 ++-- net/unix/af_unix.c | 22 +++++++++++++--------- 2 files changed, 15 insertions(+), 11 deletions(-) -- 2.34.1

2 4

[PATCH OLK-5.10] af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
by Liu Jian 22 Jun '24

22 Jun '24

From: Breno Leitao <leitao(a)debian.org> stable inclusion from stable-v5.10.219 commit 4d51845d734a4c5d079e56e0916f936a55e15055 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SCO CVE: CVE-2024-38596 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 540bf24fba16b88c1b3b9353927204b4f1074e25 ] A data-race condition has been identified in af_unix. In one data path, the write function unix_release_sock() atomically writes to sk->sk_shutdown using WRITE_ONCE. However, on the reader side, unix_stream_sendmsg() does not read it atomically. Consequently, this issue is causing the following KCSAN splat to occur: BUG: KCSAN: data-race in unix_release_sock / unix_stream_sendmsg write (marked) to 0xffff88867256ddbb of 1 bytes by task 7270 on cpu 28: unix_release_sock (net/unix/af_unix.c:640) unix_release (net/unix/af_unix.c:1050) sock_close (net/socket.c:659 net/socket.c:1421) __fput (fs/file_table.c:422) __fput_sync (fs/file_table.c:508) __se_sys_close (fs/open.c:1559 fs/open.c:1541) __x64_sys_close (fs/open.c:1541) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) read to 0xffff88867256ddbb of 1 bytes by task 989 on cpu 14: unix_stream_sendmsg (net/unix/af_unix.c:2273) __sock_sendmsg (net/socket.c:730 net/socket.c:745) ____sys_sendmsg (net/socket.c:2584) __sys_sendmmsg (net/socket.c:2638 net/socket.c:2724) __x64_sys_sendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) value changed: 0x01 -> 0x03 The line numbers are related to commit dd5a440a31fa ("Linux 6.9-rc7"). Commit e1d09c2c2f57 ("af_unix: Fix data races around sk->sk_shutdown.") addressed a comparable issue in the past regarding sk->sk_shutdown. However, it overlooked resolving this particular data path. This patch only offending unix_stream_sendmsg() function, since the other reads seem to be protected by unix_state_lock() as discussed in Link: https://lore.kernel.org/all/20240508173324.53565-1-kuniyu@amazon.com/ Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Breno Leitao <leitao(a)debian.org> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240509081459.2807828-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/unix/af_unix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index e870c835eea8..79c3c6dd30e0 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2028,7 +2028,7 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg, goto out_err; } - if (sk->sk_shutdown & SEND_SHUTDOWN) + if (READ_ONCE(sk->sk_shutdown) & SEND_SHUTDOWN) goto pipe_err; while (sent < len) { -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
by Liu Jian 22 Jun '24

22 Jun '24

From: Breno Leitao <leitao(a)debian.org> stable inclusion from stable-v4.19.316 commit fca6072e1a7b1e709ada5604b951513b89b4bd0a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SCO CVE: CVE-2024-38596 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… --------------------------- [ Upstream commit 540bf24fba16b88c1b3b9353927204b4f1074e25 ] A data-race condition has been identified in af_unix. In one data path, the write function unix_release_sock() atomically writes to sk->sk_shutdown using WRITE_ONCE. However, on the reader side, unix_stream_sendmsg() does not read it atomically. Consequently, this issue is causing the following KCSAN splat to occur: BUG: KCSAN: data-race in unix_release_sock / unix_stream_sendmsg write (marked) to 0xffff88867256ddbb of 1 bytes by task 7270 on cpu 28: unix_release_sock (net/unix/af_unix.c:640) unix_release (net/unix/af_unix.c:1050) sock_close (net/socket.c:659 net/socket.c:1421) __fput (fs/file_table.c:422) __fput_sync (fs/file_table.c:508) __se_sys_close (fs/open.c:1559 fs/open.c:1541) __x64_sys_close (fs/open.c:1541) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) read to 0xffff88867256ddbb of 1 bytes by task 989 on cpu 14: unix_stream_sendmsg (net/unix/af_unix.c:2273) __sock_sendmsg (net/socket.c:730 net/socket.c:745) ____sys_sendmsg (net/socket.c:2584) __sys_sendmmsg (net/socket.c:2638 net/socket.c:2724) __x64_sys_sendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) value changed: 0x01 -> 0x03 The line numbers are related to commit dd5a440a31fa ("Linux 6.9-rc7"). Commit e1d09c2c2f57 ("af_unix: Fix data races around sk->sk_shutdown.") addressed a comparable issue in the past regarding sk->sk_shutdown. However, it overlooked resolving this particular data path. This patch only offending unix_stream_sendmsg() function, since the other reads seem to be protected by unix_state_lock() as discussed in Link: https://lore.kernel.org/all/20240508173324.53565-1-kuniyu@amazon.com/ Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Breno Leitao <leitao(a)debian.org> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Link: https://lore.kernel.org/r/20240509081459.2807828-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/unix/af_unix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index da7ad1bf5ada..5484083cfd68 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1895,7 +1895,7 @@ static int unix_stream_sendmsg(struct socket *sock, struct msghdr *msg, goto out_err; } - if (sk->sk_shutdown & SEND_SHUTDOWN) + if (READ_ONCE(sk->sk_shutdown) & SEND_SHUTDOWN) goto pipe_err; while (sent < len) { -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] firmware: arm_scpi: Fix string overflow in SCPI genpd driver
by Yi Yang 22 Jun '24

22 Jun '24

From: Sudeep Holla <sudeep.holla(a)arm.com> stable inclusion from stable-v4.19.222 commit 7e8645ca2c0046f7cd2f0f7d569fc036c8abaedb category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SID Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 865ed67ab955428b9aa771d8b4f1e4fb7fd08945 upstream. Without the bound checks for scpi_pd->name, it could result in the buffer overflow when copying the SCPI device name from the corresponding device tree node as the name string is set at maximum size of 30. Let us fix it by using devm_kasprintf so that the string buffer is allocated dynamically. Fixes: 8bec4337ad40 ("firmware: scpi: add device power domain support using genpd") Reported-by: Pedro Batista <pedbap.g(a)gmail.com> Signed-off-by: Sudeep Holla <sudeep.holla(a)arm.com> Cc: stable(a)vger.kernel.org Cc: Cristian Marussi <cristian.marussi(a)arm.com> Link: https://lore.kernel.org/r/20211209120456.696879-1-sudeep.holla@arm.com' Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yi Yang <yiyang13(a)huawei.com> --- drivers/firmware/scpi_pm_domain.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/scpi_pm_domain.c b/drivers/firmware/scpi_pm_domain.c index f395dec27113..a6e62a793fbe 100644 --- a/drivers/firmware/scpi_pm_domain.c +++ b/drivers/firmware/scpi_pm_domain.c @@ -27,7 +27,6 @@ struct scpi_pm_domain { struct generic_pm_domain genpd; struct scpi_ops *ops; u32 domain; - char name[30]; }; /* @@ -121,8 +120,13 @@ static int scpi_pm_domain_probe(struct platform_device *pdev) scpi_pd->domain = i; scpi_pd->ops = scpi_ops; - sprintf(scpi_pd->name, "%s.%d", np->name, i); - scpi_pd->genpd.name = scpi_pd->name; + scpi_pd->genpd.name = devm_kasprintf(dev, GFP_KERNEL, + "%s.%d", np->name, i); + if (!scpi_pd->genpd.name) { + dev_err(dev, "Failed to allocate genpd name:%s.%d\n", + np->name, i); + continue; + } scpi_pd->genpd.power_off = scpi_pd_power_off; scpi_pd->genpd.power_on = scpi_pd_power_on; -- 2.25.1

2 1

[openeuler:openEuler-1.0-LTS 15565/23022] arch/x86/kvm/svm.c:1903 sev_vm_destroy() warn: inconsistent indenting
by kernel test robot 22 Jun '24

22 Jun '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 3441ff8f5dfa49d91987c2ef11a2d1647a0d56ff commit: 457eaaadf6723ca66af506471c5209bb4983f87d [15565/23022] KVM: SVM: Periodically schedule when unregistering regions on destroy config: x86_64-randconfig-161-20240622 (https://download.01.org/0day-ci/archive/20240622/202406221300.KSmWRO3o-lkp@…) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 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/202406221300.KSmWRO3o-lkp@intel.com/ smatch warnings: arch/x86/kvm/svm.c:1903 sev_vm_destroy() warn: inconsistent indenting vim +1903 arch/x86/kvm/svm.c 1883 1884 static void sev_vm_destroy(struct kvm *kvm) 1885 { 1886 struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; 1887 struct list_head *head = &sev->regions_list; 1888 struct list_head *pos, *q; 1889 1890 if (!sev_guest(kvm)) 1891 return; 1892 1893 mutex_lock(&kvm->lock); 1894 1895 /* 1896 * if userspace was terminated before unregistering the memory regions 1897 * then lets unpin all the registered memory. 1898 */ 1899 if (!list_empty(head)) { 1900 list_for_each_safe(pos, q, head) { 1901 __unregister_enc_region_locked(kvm, 1902 list_entry(pos, struct enc_region, list)); > 1903 cond_resched(); 1904 } 1905 } 1906 1907 mutex_unlock(&kvm->lock); 1908 1909 sev_unbind_asid(kvm, sev->handle); 1910 sev_asid_free(kvm); 1911 } 1912 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS v2 0/5] Linux 4.19.312-313 LTS patches
by Liu Jian 22 Jun '24

22 Jun '24

some network LTS patches Dai Ngo (1): SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int Daniel Borkmann (1): vxlan: Fix regression when dropping packets due to invalid src addresses David Bauer (1): vxlan: drop packets from invalid src-address Jiri Benc (1): ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr Yick Xie (1): udp: preserve the connected status if only UDP cmsg drivers/net/vxlan.c | 4 ++++ include/linux/sunrpc/sched.h | 2 +- include/net/addrconf.h | 4 ++++ net/ipv4/udp.c | 5 +++-- net/ipv6/addrconf.c | 7 ++++--- net/ipv6/udp.c | 5 +++-- 6 files changed, 19 insertions(+), 8 deletions(-) -- 2.34.1

2 6

[PATCH openEuler-1.0-LTS 0/4] Linux 4.19.312-313 LTS patches
by Liu Jian 22 Jun '24

22 Jun '24

some network LTS patches. Dai Ngo (1): SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int David Bauer (1): vxlan: drop packets from invalid src-address Jiri Benc (1): ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr Yick Xie (1): udp: preserve the connected status if only UDP cmsg drivers/net/vxlan.c | 4 ++++ include/linux/sunrpc/sched.h | 2 +- include/net/addrconf.h | 4 ++++ net/ipv4/udp.c | 5 +++-- net/ipv6/addrconf.c | 7 ++++--- net/ipv6/udp.c | 5 +++-- 6 files changed, 19 insertions(+), 8 deletions(-) -- 2.34.1

2 5

[PATCH openEuler-1.0-LTS] drm/amd/display: Fix potential index out of bounds in color transformation function
by Cai Xinchen 22 Jun '24

22 Jun '24

From: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> stable inclusion from stable-v4.19.316 commit 604c506ca43fce52bb882cff9c1fdf2ec3b4029c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5J CVE: CVE-2024-38552 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 63ae548f1054a0b71678d0349c7dc9628ddd42ca ] Fixes index out of bounds issue in the color transformation function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds, an error message is logged and the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max Fixes: b629596072e5 ("drm/amd/display: Build unity lut for shaper") Cc: Vitaly Prosyak <vitaly.prosyak(a)amd.com> Cc: Charlene Liu <Charlene.Liu(a)amd.com> Cc: Harry Wentland <harry.wentland(a)amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Cc: Roman Li <roman.li(a)amd.com> Cc: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Cc: Tom Chung <chiahsuan.chung(a)amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> Reviewed-by: Tom Chung <chiahsuan.chung(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: Cai Xinchen <caixinchen1(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c index f8904f73f57b..67a3ba49234e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c @@ -315,6 +315,11 @@ bool cm_helper_translate_curve_to_hw_format( i += increment) { if (j == hw_points - 1) break; + if (i >= TRANSFER_FUNC_POINTS) { + DC_LOG_ERROR("Index out of bounds: i=%d, TRANSFER_FUNC_POINTS=%d\n", + i, TRANSFER_FUNC_POINTS); + return false; + } rgb_resulted[j].red = output_tf->tf_pts.red[i]; rgb_resulted[j].green = output_tf->tf_pts.green[i]; rgb_resulted[j].blue = output_tf->tf_pts.blue[i]; -- 2.34.1

2 1

[PATCH OLK-5.10] drm/amd/display: Fix potential index out of bounds in color transformation function
by Cai Xinchen 22 Jun '24

22 Jun '24

From: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> stable inclusion from stable-v5.10.219 commit 04bc4d1090c343025d69149ca669a27c5b9c34a7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5J CVE: CVE-2024-38552 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 63ae548f1054a0b71678d0349c7dc9628ddd42ca ] Fixes index out of bounds issue in the color transformation function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds, an error message is logged and the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max Fixes: b629596072e5 ("drm/amd/display: Build unity lut for shaper") Cc: Vitaly Prosyak <vitaly.prosyak(a)amd.com> Cc: Charlene Liu <Charlene.Liu(a)amd.com> Cc: Harry Wentland <harry.wentland(a)amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Cc: Roman Li <roman.li(a)amd.com> Cc: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Cc: Tom Chung <chiahsuan.chung(a)amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> Reviewed-by: Tom Chung <chiahsuan.chung(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: Cai Xinchen <caixinchen1(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c index 7a00fe525dfb..bd9bc51983fe 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c @@ -379,6 +379,11 @@ bool cm_helper_translate_curve_to_hw_format( i += increment) { if (j == hw_points - 1) break; + if (i >= TRANSFER_FUNC_POINTS) { + DC_LOG_ERROR("Index out of bounds: i=%d, TRANSFER_FUNC_POINTS=%d\n", + i, TRANSFER_FUNC_POINTS); + return false; + } rgb_resulted[j].red = output_tf->tf_pts.red[i]; rgb_resulted[j].green = output_tf->tf_pts.green[i]; rgb_resulted[j].blue = output_tf->tf_pts.blue[i]; -- 2.34.1

2 1

[PATCH OLK-6.6] drm/amd/display: Fix potential index out of bounds in color transformation function
by Cai Xinchen 22 Jun '24

22 Jun '24

From: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> stable inclusion from stable-v6.6.33 commit 4e8c8b37ee84b3b19c448d2b8e4c916d2f5b9c86 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5J CVE: CVE-2024-38552 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 63ae548f1054a0b71678d0349c7dc9628ddd42ca ] Fixes index out of bounds issue in the color transformation function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds, an error message is logged and the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:405 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:406 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:407 cm_helper_translate_curve_to_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max Fixes: b629596072e5 ("drm/amd/display: Build unity lut for shaper") Cc: Vitaly Prosyak <vitaly.prosyak(a)amd.com> Cc: Charlene Liu <Charlene.Liu(a)amd.com> Cc: Harry Wentland <harry.wentland(a)amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Cc: Roman Li <roman.li(a)amd.com> Cc: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Cc: Tom Chung <chiahsuan.chung(a)amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam(a)amd.com> Reviewed-by: Tom Chung <chiahsuan.chung(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: Cai Xinchen <caixinchen1(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c index 3538973bd0c6..c0372aa4ec83 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c @@ -382,6 +382,11 @@ bool cm_helper_translate_curve_to_hw_format(struct dc_context *ctx, i += increment) { if (j == hw_points - 1) break; + if (i >= TRANSFER_FUNC_POINTS) { + DC_LOG_ERROR("Index out of bounds: i=%d, TRANSFER_FUNC_POINTS=%d\n", + i, TRANSFER_FUNC_POINTS); + return false; + } rgb_resulted[j].red = output_tf->tf_pts.red[i]; rgb_resulted[j].green = output_tf->tf_pts.green[i]; rgb_resulted[j].blue = output_tf->tf_pts.blue[i]; -- 2.34.1

2 1

[PATCH src-openeuler] Add startup setting for hns3 interrupt coalesce parameters
by Zheng Zengkai 21 Jun '24

21 Jun '24

Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- hns3_int_coal_params_setting.service | 11 +++++++++++ hns3_int_coal_params_setting.sh | 14 ++++++++++++++ kernel.spec | 25 ++++++++++++++++++++++++- 3 files changed, 49 insertions(+), 1 deletion(-) create mode 100644 hns3_int_coal_params_setting.service create mode 100644 hns3_int_coal_params_setting.sh diff --git a/hns3_int_coal_params_setting.service b/hns3_int_coal_params_setting.service new file mode 100644 index 0000000..06fe24b --- /dev/null +++ b/hns3_int_coal_params_setting.service @@ -0,0 +1,11 @@ +[Unit] +Description=Interrupt coalesce parameters setting for hns3 nic +After=network.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=/usr/bin/hns3_int_coal_params_setting.sh + +[Install] +WantedBy=multi-user.target diff --git a/hns3_int_coal_params_setting.sh b/hns3_int_coal_params_setting.sh new file mode 100644 index 0000000..de3ae4c --- /dev/null +++ b/hns3_int_coal_params_setting.sh @@ -0,0 +1,14 @@ +#!/bin/bash + +# setting optimizing interrupt coalesce parameters for hns3 nic + +for hns3_devname_path in /sys/bus/pci/drivers/hns3/*/net/* +do + if [ -d "$hns3_devname_path" ] + then + hns3_devname=${hns3_devname_path##*/} + echo "setting $hns3_devname interrupt coalesce parameters" + ethtool -C $hns3_devname adaptive-rx off adaptive-tx off + ethtool -C $hns3_devname rx-usecs 15 tx-usecs 15 + fi +done diff --git a/kernel.spec b/kernel.spec index e9a153c..0a7f37b 100644 --- a/kernel.spec +++ b/kernel.spec @@ -11,7 +11,7 @@ %global upstream_sublevel 0 %global devel_release 210 %global maintenance_release .0.0 -%global pkg_release .110 +%global pkg_release .111 %define with_debuginfo 1 # Do not recompute the build-id of vmlinux in find-debuginfo.sh @@ -72,6 +72,9 @@ Source200: mkgrub-menu-aarch64.sh Source2000: cpupower.service Source2001: cpupower.config +Source2002: hns3_int_coal_params_setting.service +Source2003: hns3_int_coal_params_setting.sh + %if 0%{?with_patch} Source9000: apply-patches Source9001: guards @@ -738,6 +741,13 @@ install -m644 %{SOURCE2001} %{buildroot}%{_sysconfdir}/sysconfig/cpupower make DESTDIR=%{buildroot} install popd %endif + +# hns3 nic interrupt coalesce parameters setting +%ifarch aarch64 +install -m644 %{SOURCE2002} %{buildroot}%{_unitdir}/hns3_int_coal_params_setting.service +install -m755 %{SOURCE2003} %{buildroot}%{_bindir}/hns3_int_coal_params_setting.sh +%endif + # thermal pushd tools/thermal/tmon make INSTALL_ROOT=%{buildroot} install @@ -827,6 +837,10 @@ fi %systemd_postun cpupower.service %endif +%ifarch aarch64 +%systemd_post hns3_int_coal_params_setting.service +%endif + %files %defattr (-, root, root) %doc @@ -901,6 +915,12 @@ fi %{_bindir}/turbostat %{_mandir}/man8/turbostat* %endif + +%ifarch aarch64 +%{_unitdir}/hns3_int_coal_params_setting.service +%{_bindir}/hns3_int_coal_params_setting.sh +%endif + %{_bindir}/tmon %{_bindir}/iio_event_monitor %{_bindir}/iio_generic_buffer @@ -952,6 +972,9 @@ fi %endif %changelog +* Fri Jun 21 2024 Zheng Zengkai <zhengzengkai(a)huawei.com> - 5.10.0-210.0.0.111 +- kernel.spec: Add startup setting for hns3 interrupt coalesce parameters + * Fri Jun 21 2024 Jialin Zhang <zhangjialin11(a)huawei.com> - 5.10.0-210.0.0.110 - !9268 net: sched: sch_multiq: fix possible OOB write in multiq_tune() - !9103 ksmbd: no response from compound read -- 2.33.0

1 0

[PATCH openEuler-1.0-LTS 0/4] round lts patches
by Zhengchao Shao 21 Jun '24

21 Jun '24

Round lts patches. David Bauer (1): net l2tp: drop flow hash on forward Felix Fietkau (2): net: bridge: fix multicast-to-unicast with fraglist GSO net: bridge: fix corrupted ethernet header on multicast-to-unicast linke li (1): net: mark racy access on sk->sk_rcvbuf net/bridge/br_forward.c | 9 +++++++-- net/core/sock.c | 4 ++-- net/l2tp/l2tp_eth.c | 3 +++ 3 files changed, 12 insertions(+), 4 deletions(-) -- 2.34.1

2 5

[PATCH OLK-5.10] Revert "sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"
by Hui Tang 21 Jun '24

21 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7CCA CVE: NA -------------------------------- This reverts commit 47559d11e27beaecec41c1059c215ea61ece62d6. We find the commit 47559d11e27b ("sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"), which cause performance degradation with Unixbench pipe-base contextswich case tested on Kunpeng 920B. Test case: ./Run context1 -c `nproc` -i 3 Unixbench results (Pipe-based_Context_Switching): baseline patched 4.5w 8.5w Fixes: 47559d11e27b ("sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP") Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/features.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 76fade025c4b..83f524cea64d 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -54,13 +54,8 @@ SCHED_FEAT(TTWU_QUEUE, true) /* * When doing wakeups, attempt to limit superfluous scans of the LLC domain. */ -#ifdef CONFIG_ARM64 SCHED_FEAT(SIS_PROP, false) SCHED_FEAT(SIS_UTIL, true) -#else -SCHED_FEAT(SIS_PROP, true) -SCHED_FEAT(SIS_UTIL, false) -#endif #ifdef CONFIG_SCHED_STEAL /* -- 2.34.1

2 1

[PATCH OLK-5.10] Revert "sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"
by Hui Tang 21 Jun '24

21 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7CCA CVE: NA -------------------------------- This reverts commit 47559d11e27beaecec41c1059c215ea61ece62d6. We find the commit 47559d11e27b ("sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"), which cause performance degradation with Unixbench pipe-base contextswich case tested on Kunpeng 920B. Test case: ./Run context1 -c `nproc` -i 3 Unixbench results (Pipe-based_Context_Switching): baseline patched 4.5w 8.5w Signed-off-by: Hui Tang <tanghui20(a)huawei.com> --- kernel/sched/features.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 76fade025c4b..83f524cea64d 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -54,13 +54,8 @@ SCHED_FEAT(TTWU_QUEUE, true) /* * When doing wakeups, attempt to limit superfluous scans of the LLC domain. */ -#ifdef CONFIG_ARM64 SCHED_FEAT(SIS_PROP, false) SCHED_FEAT(SIS_UTIL, true) -#else -SCHED_FEAT(SIS_PROP, true) -SCHED_FEAT(SIS_UTIL, false) -#endif #ifdef CONFIG_SCHED_STEAL /* -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/1] CVE-2022-48755
by Yuntao Liu 21 Jun '24

21 Jun '24

CVE-2022-48755 Naveen N. Rao (1): [Backport] powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 arch/powerpc/net/bpf_jit_comp64.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) -- 2.34.1

2 2

[PATCH OLK-5.10] Revert "sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"
by Hui Tang 21 Jun '24

21 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7CCA CVE: NA -------------------------------- This reverts commit 47559d11e27beaecec41c1059c215ea61ece62d6. We find the commit 47559d11e27b ("sched/fair:ARM64 enables SIS_UTIL and disables SIS_PROP"), which cause performance degradation with Unixbench pipe-base contextswich case tested on Kunpeng 920B. Test case: ./Run context1 -c `nproc` -i 3 Unixbench results (Pipe-based_Context_Switching): baseline patched 4.5w 8.5w --- kernel/sched/features.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 76fade025c4b..83f524cea64d 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -54,13 +54,8 @@ SCHED_FEAT(TTWU_QUEUE, true) /* * When doing wakeups, attempt to limit superfluous scans of the LLC domain. */ -#ifdef CONFIG_ARM64 SCHED_FEAT(SIS_PROP, false) SCHED_FEAT(SIS_UTIL, true) -#else -SCHED_FEAT(SIS_PROP, true) -SCHED_FEAT(SIS_UTIL, false) -#endif #ifdef CONFIG_SCHED_STEAL /* -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/2] spi: Fix deadlock when adding SPI controllers on SPI buses
by Zeng Heng 21 Jun '24

21 Jun '24

Mark Brown (1): spi: Fix deadlock when adding SPI controllers on SPI buses Zeng Heng (1): spi: fix kabi breakage in struct spi_controller drivers/spi/spi.c | 43 ++++++++++++++++++++++++++---------------- include/linux/device.h | 12 ++++++++++++ 2 files changed, 39 insertions(+), 16 deletions(-) -- 2.25.1

2 3

[PATCH openEuler-1.0-LTS 0/2] spi: Fix deadlock when adding
by Zeng Heng 21 Jun '24

21 Jun '24

Mark Brown (1): spi: Fix deadlock when adding SPI controllers on SPI buses Zeng Heng (1): spi: fix kabi breakage in struct spi_controller drivers/spi/spi.c | 43 ++++++++++++++++++++++++++---------------- include/linux/device.h | 12 ++++++++++++ 2 files changed, 39 insertions(+), 16 deletions(-) -- 2.25.1

2 3

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-38538
by Yuntao Liu 21 Jun '24

21 Jun '24

CVE-2024-38538 Naveen N. Rao (1): [Backport] powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 arch/powerpc/net/bpf_jit_comp64.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-38538
by Yuntao Liu 21 Jun '24

21 Jun '24

CVE-2024-38538 Naveen N. Rao (1): [Backport] powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 arch/powerpc/net/bpf_jit_comp64.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) -- 2.34.1

2 2

[PATCH openEuler-1.0-LTS 0/1] CVE-2024-38538
by Yuntao Liu 21 Jun '24

21 Jun '24

CVE-2024-38538 Naveen N. Rao (1): [Backport] powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 arch/powerpc/net/bpf_jit_comp64.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) -- 2.34.1

2 2

[PATCH OLK-5.10 v6 0/9] sync hulk-5.10 patches
by Yu Kuai 21 Jun '24

21 Jun '24

Changes in v6: - fix a typo Changes in v5: - rebase Changes in v4: - just resend Changes in v3: - modify openeuler_defconfig for disabled new config in patch 1,2 Changes in v2: - fix head in commit message Christoph Hellwig (2): block: serialize all debugfs operations using q->debugfs_mutex block: remove per-disk debugfs files in blk_unregister_queue Yu Kuai (7): block: add a switch to enable hungtask check for io blk-throttle: add a config to control hierarchical throttle in cgroup v1 blk-throttle: fix missing prefix "CONFIG_" block: protect blk_mq_debugfs_register/unregister_hctx() with 'debugfs_mutex' block: shutdown blktrace in blk_release_queue() block: support enable/disable blk-mq debugfs dynamically block: fix kabi broken in struct request_queue arch/arm64/configs/openeuler_defconfig | 3 + arch/powerpc/configs/openeuler_defconfig | 2 + arch/x86/configs/openeuler_defconfig | 3 + block/Kconfig | 37 +++++++++ block/bio.c | 2 +- block/blk-core.c | 13 +++- block/blk-exec.c | 2 +- block/blk-mq-debugfs.c | 97 +++++++++++++++++++++--- block/blk-mq-debugfs.h | 5 -- block/blk-mq-sched.c | 11 +++ block/blk-mq.c | 11 +++ block/blk-rq-qos.c | 2 - block/blk-rq-qos.h | 7 +- block/blk-sysfs.c | 82 +++++++++++++++++--- block/blk-throttle.c | 17 ++++- block/blk.h | 1 + include/linux/blkdev.h | 7 +- kernel/trace/blktrace.c | 3 - 18 files changed, 264 insertions(+), 41 deletions(-) -- 2.39.2

2 10

[PATCH OLK-6.6] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> stable inclusion from stable-v6.6.33 commit 0b0d5701a8bf02f8fee037e81aacf6746558bfd6 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit cf7385cb26ac4f0ee6c7385960525ad534323252 ] In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/module.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/module.c b/drivers/of/module.c index f58e624953a2..780fd82a7ecc 100644 --- a/drivers/of/module.c +++ b/drivers/of/module.c @@ -29,14 +29,15 @@ ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len) csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T', of_node_get_device_type(np)); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(np, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH OLK-5.10 0/3] CVE-2024-26661 following bugfix
by Liao Chen 21 Jun '24

21 Jun '24

In order to apply (drm/amd/display: Fix && vs || typos) in full, we revert it, merge its precedent, and apply it back. Dan Carpenter (1): drm/amd/display: Fix && vs || typos Liao Chen (1): Revert "drm/amd/display: Fix && vs || typos" Srinivasan Shanmugam (1): drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- 2.34.1

2 4

[PATCH OLK-6.6] ftrace: Fix possible use-after-free issue in ftrace_location()
by Zheng Yejian 21 Jun '24

21 Jun '24

mainline inclusion from mainline-v6.10-rc1 commit e60b613df8b6253def41215402f72986fee3fc8d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5H CVE: CVE-2024-38588 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------------ KASAN reports a bug: BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted: CPU1 | CPU2 register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free! To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem(). Link: https://lore.kernel.org/linux-trace-kernel/20240509192859.1273558-1-zhengye… Cc: stable(a)vger.kernel.org Cc: <mhiramat(a)kernel.org> Cc: <mark.rutland(a)arm.com> Cc: <mathieu.desnoyers(a)efficios.com> Fixes: ae6aa16fdc16 ("kprobes: introduce ftrace based optimization") Suggested-by: Steven Rostedt <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/ftrace.c | 39 +++++++++++++++++++++++---------------- 1 file changed, 23 insertions(+), 16 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 83ba342aef31..2f80239348f5 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1595,12 +1595,15 @@ static struct dyn_ftrace *lookup_rec(unsigned long start, unsigned long end) unsigned long ftrace_location_range(unsigned long start, unsigned long end) { struct dyn_ftrace *rec; + unsigned long ip = 0; + rcu_read_lock(); rec = lookup_rec(start, end); if (rec) - return rec->ip; + ip = rec->ip; + rcu_read_unlock(); - return 0; + return ip; } /** @@ -1613,25 +1616,22 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) */ unsigned long ftrace_location(unsigned long ip) { - struct dyn_ftrace *rec; + unsigned long loc; unsigned long offset; unsigned long size; - rec = lookup_rec(ip, ip); - if (!rec) { + loc = ftrace_location_range(ip, ip); + if (!loc) { if (!kallsyms_lookup_size_offset(ip, &size, &offset)) goto out; /* map sym+0 to __fentry__ */ if (!offset) - rec = lookup_rec(ip, ip + size - 1); + loc = ftrace_location_range(ip, ip + size - 1); } - if (rec) - return rec->ip; - out: - return 0; + return loc; } /** @@ -6593,6 +6593,8 @@ static int ftrace_process_locs(struct module *mod, /* We should have used all pages unless we skipped some */ if (pg_unuse) { WARN_ON(!skipped); + /* Need to synchronize with ftrace_location_range() */ + synchronize_rcu(); ftrace_free_pages(pg_unuse); } return ret; @@ -6806,6 +6808,9 @@ void ftrace_release_mod(struct module *mod) out_unlock: mutex_unlock(&ftrace_lock); + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) + synchronize_rcu(); for (pg = tmp_page; pg; pg = tmp_page) { /* Needs to be called outside of ftrace_lock */ @@ -7139,6 +7144,7 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) unsigned long start = (unsigned long)(start_ptr); unsigned long end = (unsigned long)(end_ptr); struct ftrace_page **last_pg = &ftrace_pages_start; + struct ftrace_page *tmp_page = NULL; struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; @@ -7180,12 +7186,8 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) ftrace_update_tot_cnt--; if (!pg->index) { *last_pg = pg->next; - if (pg->records) { - free_pages((unsigned long)pg->records, pg->order); - ftrace_number_of_pages -= 1 << pg->order; - } - ftrace_number_of_groups--; - kfree(pg); + pg->next = tmp_page; + tmp_page = pg; pg = container_of(last_pg, struct ftrace_page, next); if (!(*last_pg)) ftrace_pages = pg; @@ -7202,6 +7204,11 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) clear_func_from_hashes(func); kfree(func); } + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) { + synchronize_rcu(); + ftrace_free_pages(tmp_page); + } } void __init ftrace_free_init_mem(void) -- 2.25.1

2 1

[PATCH OLK-6.6] ring-buffer: Fix a race between readers and resize checks
by Zheng Yejian 21 Jun '24

21 Jun '24

From: Petr Pavlu <petr.pavlu(a)suse.com> mainline inclusion from mainline-v6.10-rc1 commit c2274b908db05529980ec056359fae916939fdaa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8L CVE: CVE-2024-38601 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The reader code in rb_get_reader_page() swaps a new reader page into the ring buffer by doing cmpxchg on old->list.prev->next to point it to the new page. Following that, if the operation is successful, old->list.next->prev gets updated too. This means the underlying doubly-linked list is temporarily inconsistent, page->prev->next or page->next->prev might not be equal back to page for some page in the ring buffer. The resize operation in ring_buffer_resize() can be invoked in parallel. It calls rb_check_pages() which can detect the described inconsistency and stop further tracing: [ 190.271762] ------------[ cut here ]------------ [ 190.271771] WARNING: CPU: 1 PID: 6186 at kernel/trace/ring_buffer.c:1467 rb_check_pages.isra.0+0x6a/0xa0 [ 190.271789] Modules linked in: [...] [ 190.271991] Unloaded tainted modules: intel_uncore_frequency(E):1 skx_edac(E):1 [ 190.272002] CPU: 1 PID: 6186 Comm: cmd.sh Kdump: loaded Tainted: G E 6.9.0-rc6-default #5 158d3e1e6d0b091c34c3b96bfd99a1c58306d79f [ 190.272011] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552c-rebuilt.opensuse.org 04/01/2014 [ 190.272015] RIP: 0010:rb_check_pages.isra.0+0x6a/0xa0 [ 190.272023] Code: [...] [ 190.272028] RSP: 0018:ffff9c37463abb70 EFLAGS: 00010206 [ 190.272034] RAX: ffff8eba04b6cb80 RBX: 0000000000000007 RCX: ffff8eba01f13d80 [ 190.272038] RDX: ffff8eba01f130c0 RSI: ffff8eba04b6cd00 RDI: ffff8eba0004c700 [ 190.272042] RBP: ffff8eba0004c700 R08: 0000000000010002 R09: 0000000000000000 [ 190.272045] R10: 00000000ffff7f52 R11: ffff8eba7f600000 R12: ffff8eba0004c720 [ 190.272049] R13: ffff8eba00223a00 R14: 0000000000000008 R15: ffff8eba067a8000 [ 190.272053] FS: 00007f1bd64752c0(0000) GS:ffff8eba7f680000(0000) knlGS:0000000000000000 [ 190.272057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 190.272061] CR2: 00007f1bd6662590 CR3: 000000010291e001 CR4: 0000000000370ef0 [ 190.272070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 190.272073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 190.272077] Call Trace: [ 190.272098] <TASK> [ 190.272189] ring_buffer_resize+0x2ab/0x460 [ 190.272199] __tracing_resize_ring_buffer.part.0+0x23/0xa0 [ 190.272206] tracing_resize_ring_buffer+0x65/0x90 [ 190.272216] tracing_entries_write+0x74/0xc0 [ 190.272225] vfs_write+0xf5/0x420 [ 190.272248] ksys_write+0x67/0xe0 [ 190.272256] do_syscall_64+0x82/0x170 [ 190.272363] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 190.272373] RIP: 0033:0x7f1bd657d263 [ 190.272381] Code: [...] [ 190.272385] RSP: 002b:00007ffe72b643f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 190.272391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1bd657d263 [ 190.272395] RDX: 0000000000000002 RSI: 0000555a6eb538e0 RDI: 0000000000000001 [ 190.272398] RBP: 0000555a6eb538e0 R08: 000000000000000a R09: 0000000000000000 [ 190.272401] R10: 0000555a6eb55190 R11: 0000000000000246 R12: 00007f1bd6662500 [ 190.272404] R13: 0000000000000002 R14: 00007f1bd6667c00 R15: 0000000000000002 [ 190.272412] </TASK> [ 190.272414] ---[ end trace 0000000000000000 ]--- Note that ring_buffer_resize() calls rb_check_pages() only if the parent trace_buffer has recording disabled. Recent commit d78ab792705c ("tracing: Stop current tracer when resizing buffer") causes that it is now always the case which makes it more likely to experience this issue. The window to hit this race is nonetheless very small. To help reproducing it, one can add a delay loop in rb_get_reader_page(): ret = rb_head_page_replace(reader, cpu_buffer->reader_page); if (!ret) goto spin; for (unsigned i = 0; i < 1U << 26; i++) /* inserted delay loop */ __asm__ __volatile__ ("" : : : "memory"); rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list; .. and then run the following commands on the target system: echo 1 > /sys/kernel/tracing/events/sched/sched_switch/enable while true; do echo 16 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 echo 8 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 done & while true; do for i in /sys/kernel/tracing/per_cpu/*; do timeout 0.1 cat $i/trace_pipe; sleep 0.2 done done To fix the problem, make sure ring_buffer_resize() doesn't invoke rb_check_pages() concurrently with a reader operating on the same ring_buffer_per_cpu by taking its cpu_buffer->reader_lock. Link: https://lore.kernel.org/linux-trace-kernel/20240517134008.24529-3-petr.pavl… Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Fixes: 659f451ff213 ("ring-buffer: Add integrity check at end of iter read") Signed-off-by: Petr Pavlu <petr.pavlu(a)suse.com> [ Fixed whitespace ] Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/ring_buffer.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 7b36e80fe27a..72884e8073b3 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1599,6 +1599,11 @@ static void rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, * * As a safety measure we check to make sure the data pages have not * been corrupted. + * + * Callers of this function need to guarantee that the list of pages doesn't get + * modified during the check. In particular, if it's possible that the function + * is invoked with concurrent readers which can swap in a new reader page then + * the caller should take cpu_buffer->reader_lock. */ static void rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) { @@ -2338,8 +2343,12 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, */ synchronize_rcu(); for_each_buffer_cpu(buffer, cpu) { + unsigned long flags; + cpu_buffer = buffer->buffers[cpu]; + raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags); rb_check_pages(cpu_buffer); + raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); } atomic_dec(&buffer->record_disabled); } -- 2.25.1

2 1

[PATCH OLK-5.10 0/3] CVE-2024-26661 following bugfix
by Liao Chen 21 Jun '24

21 Jun '24

In order to apply (drm/amd/display: Fix && vs || typos) in full, we revert it, merge its precedent, and apply it back. Dan Carpenter (1): drm/amd/display: Fix && vs || typos Liao Chen (1): Revert "drm/amd/display: Fix && vs || typos" Srinivasan Shanmugam (1): drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- 2.34.1

2 4

[PATCH OLK-6.6] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> stable inclusion from stable-v6.6.33 commit 0b0d5701a8bf02f8fee037e81aacf6746558bfd6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit cf7385cb26ac4f0ee6c7385960525ad534323252 ] In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/module.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/module.c b/drivers/of/module.c index f58e624953a2..780fd82a7ecc 100644 --- a/drivers/of/module.c +++ b/drivers/of/module.c @@ -29,14 +29,15 @@ ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len) csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T', of_node_get_device_type(np)); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(np, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 0/2] spi: Fix deadlock when adding
by Zeng Heng 21 Jun '24

21 Jun '24

Mark Brown (1): spi: Fix deadlock when adding SPI controllers on SPI buses Zeng Heng (1): spi: fix kabi breakage in struct spi_controller drivers/spi/spi.c | 43 ++++++++++++++++++++++++++---------------- include/linux/device.h | 8 ++++++++ 2 files changed, 35 insertions(+), 16 deletions(-) -- 2.25.1

2 3

[PATCH OLK-5.10 0/4] CVE-2021-47599
by Yifan Qiao 21 Jun '24

21 Jun '24

Anand Jain (4): btrfs: convert latest_bdev type to btrfs_device and rename btrfs: use latest_dev in btrfs_show_devname btrfs: update latest_dev when we create a sprout device btrfs: remove stale comment about the btrfs_show_devname fs/btrfs/volumes.h | 6 +++++- fs/btrfs/disk-io.c | 6 +++--- fs/btrfs/extent_io.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/super.c | 26 ++++++-------------------- fs/btrfs/volumes.c | 19 +++++++------------ 6 files changed, 23 insertions(+), 38 deletions(-) -- 2.39.2

2 5

[PATCH openEuler-22.03-LTS-SP1 0/4] CVE-2021-47599
by Yifan Qiao 21 Jun '24

21 Jun '24

Anand Jain (4): btrfs: convert latest_bdev type to btrfs_device and rename btrfs: use latest_dev in btrfs_show_devname btrfs: update latest_dev when we create a sprout device btrfs: remove stale comment about the btrfs_show_devname fs/btrfs/volumes.h | 6 +++++- fs/btrfs/disk-io.c | 6 +++--- fs/btrfs/extent_io.c | 2 +- fs/btrfs/inode.c | 2 +- fs/btrfs/super.c | 26 ++++++-------------------- fs/btrfs/volumes.c | 19 +++++++------------ 6 files changed, 23 insertions(+), 38 deletions(-) -- 2.39.2

2 5

[PATCH OLK-6.6 0/2] Port patches from OLK-5.10
by Zheng Yejian 21 Jun '24

21 Jun '24

Zheng Yejian (2): livepatch: Avoid patching conflicts with kprobes livepatch: Enable CONFIG_LIVEPATCH_ISOLATE_KPROBE in openeuler_defconfig arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/kernel/livepatch.c | 11 ++++ arch/x86/configs/openeuler_defconfig | 1 + arch/x86/kernel/livepatch.c | 18 ++++++ include/linux/kprobes.h | 8 +++ include/linux/livepatch.h | 13 ++++ kernel/kprobes.c | 25 +++++++- kernel/livepatch/Kconfig | 14 ++++ kernel/livepatch/core.c | 88 ++++++++++++++++++++++++++ 9 files changed, 178 insertions(+), 1 deletion(-) -- 2.25.1

2 3

[openeuler:OLK-6.6 2514/10358] ld.lld: error: undefined symbol: sched_settag
by kernel test robot 21 Jun '24

21 Jun '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 79e1c0e468a9c6fa0ca8d1a329bbba9c40f4d84d commit: 34239429b1253e3d19cebf15277f46916519b1c2 [2514/10358] sched: programmable: Add user interface of task tag config: x86_64-randconfig-076-20240621 (https://download.01.org/0day-ci/archive/20240621/202406211329.ROMqS1XO-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240621/202406211329.ROMqS1XO-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/202406211329.ROMqS1XO-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: sched_settag >>> referenced by base.c:3697 (fs/proc/base.c:3697) >>> vmlinux.o:(pid_tag_write) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 9475e0443ff9..233d4bb975ca 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -41,6 +41,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index d3ea9d0779fb..84e37108c6b5 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -36,6 +36,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH OLK-5.10] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index d3ea9d0779fb..84e37108c6b5 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -36,6 +36,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!pskb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index 9475e0443ff9..5e560e1b68d7 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -41,6 +41,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!skb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index d3ea9d0779fb..a427669fbcb4 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -36,6 +36,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!skb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH OLK-5.10] net: bridge: xmit: make sure we have at least eth header len bytes
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Nikolay Aleksandrov <razor(a)blackwall.org> mainline inclusion from mainline-v6.10-rc1 commit 8bd67ebb50c0145fd2ca8681ab65eb7e8cde1afc category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SHY CVE: CVE-2024-38538 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- syzbot triggered an uninit value[1] error in bridge device's xmit path by sending a short (less than ETH_HLEN bytes) skb. To fix it check if we can actually pull that amount instead of assuming. Tested with dropwatch: drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3) origin: software timestamp: Mon May 13 11:31:53 2024 778214037 nsec protocol: 0x88a8 length: 2 original length: 2 drop reason: PKT_TOO_SMALL [1] BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341 dev_queue_xmit include/linux/netdevice.h:3091 [inline] __bpf_tx_skb net/core/filter.c:2136 [inline] __bpf_redirect_common net/core/filter.c:2180 [inline] __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187 ____bpf_clone_redirect net/core/filter.c:2460 [inline] bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322 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+0x77/0x7f Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+a63a1f6a062033cf0f40(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40 Signed-off-by: Nikolay Aleksandrov <razor(a)blackwall.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/bridge/br_device.c [The conflict occurs because the commit 1fb2d41501f3("net: add pskb_may_pull_reason() helper") and 1330b6ef3313("skb: make drop reason booleanable") are not merged. Replace pskb_may_pull_reason with pskb_may_pull. The logic remains unchanged.] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/bridge/br_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index d3ea9d0779fb..a427669fbcb4 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -36,6 +36,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) const unsigned char *dest; u16 vid = 0; + if (unlikely(!skb_may_pull(skb, ETH_HLEN))) { + kfree_skb(skb); + return NETDEV_TX_OK; + } + memset(skb->cb, 0, sizeof(struct br_input_skb_cb)); rcu_read_lock(); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations
by Wupeng Ma 21 Jun '24

21 Jun '24

From: Vlastimil Babka <vbabka(a)suse.cz> stable inclusion from stable-v4.19.312 commit c82a659cc8bb7a7f8a8348fc7f203c412ae3636f category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA7533 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 803de9000f334b771afacb6ff3e78622916668b0 upstream. Sven reports an infinite loop in __alloc_pages_slowpath() for costly order __GFP_RETRY_MAYFAIL allocations that are also GFP_NOIO. Such combination can happen in a suspend/resume context where a GFP_KERNEL allocation can have __GFP_IO masked out via gfp_allowed_mask. Quoting Sven: 1. try to do a "costly" allocation (order > PAGE_ALLOC_COSTLY_ORDER) with __GFP_RETRY_MAYFAIL set. 2. page alloc's __alloc_pages_slowpath tries to get a page from the freelist. This fails because there is nothing free of that costly order. 3. page alloc tries to reclaim by calling __alloc_pages_direct_reclaim, which bails out because a zone is ready to be compacted; it pretends to have made a single page of progress. 4. page alloc tries to compact, but this always bails out early because __GFP_IO is not set (it's not passed by the snd allocator, and even if it were, we are suspending so the __GFP_IO flag would be cleared anyway). 5. page alloc believes reclaim progress was made (because of the pretense in item 3) and so it checks whether it should retry compaction. The compaction retry logic thinks it should try again, because: a) reclaim is needed because of the early bail-out in item 4 b) a zonelist is suitable for compaction 6. goto 2. indefinite stall. (end quote) The immediate root cause is confusing the COMPACT_SKIPPED returned from __alloc_pages_direct_compact() (step 4) due to lack of __GFP_IO to be indicating a lack of order-0 pages, and in step 5 evaluating that in should_compact_retry() as a reason to retry, before incrementing and limiting the number of retries. There are however other places that wrongly assume that compaction can happen while we lack __GFP_IO. To fix this, introduce gfp_compaction_allowed() to abstract the __GFP_IO evaluation and switch the open-coded test in try_to_compact_pages() to use it. Also use the new helper in: - compaction_ready(), which will make reclaim not bail out in step 3, so there's at least one attempt to actually reclaim, even if chances are small for a costly order - in_reclaim_compaction() which will make should_continue_reclaim() return false and we don't over-reclaim unnecessarily - in __alloc_pages_slowpath() to set a local variable can_compact, which is then used to avoid retrying reclaim/compaction for costly allocations (step 5) if we can't compact and also to skip the early compaction attempt that we do in some cases Link: https://lkml.kernel.org/r/20240221114357.13655-2-vbabka@suse.cz Fixes: 3250845d0526 ("Revert "mm, oom: prevent premature OOM killer invocation for high order request"") Signed-off-by: Vlastimil Babka <vbabka(a)suse.cz> Reported-by: Sven van Ashbrook <svenva(a)chromium.org> Closes: https://lore.kernel.org/all/CAG-rBihs_xMKb3wrMO1%2B-%2Bp4fowP9oy1pa_OTkfxBz… Tested-by: Karthikeyan Ramasubramanian <kramasub(a)chromium.org> Cc: Brian Geffon <bgeffon(a)google.com> Cc: Curtis Malainey <cujomalainey(a)chromium.org> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Vlastimil Babka <vbabka(a)suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- include/linux/gfp.h | 9 +++++++++ mm/compaction.c | 7 +------ mm/page_alloc.c | 10 ++++++---- mm/vmscan.c | 5 ++++- 4 files changed, 20 insertions(+), 11 deletions(-) diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 74b0375d7d2b3..3a48b3201dfc8 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -622,6 +622,15 @@ static inline bool pm_suspended_storage(void) } #endif /* CONFIG_PM_SLEEP */ +/* + * Check if the gfp flags allow compaction - GFP_NOIO is a really + * tricky context because the migration might require IO. + */ +static inline bool gfp_compaction_allowed(gfp_t gfp_mask) +{ + return IS_ENABLED(CONFIG_COMPACTION) && (gfp_mask & __GFP_IO); +} + #if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA) /* The below functions must be run on a range from a single zone. */ extern int alloc_contig_range(unsigned long start, unsigned long end, diff --git a/mm/compaction.c b/mm/compaction.c index f45a057a0e645..39f599bbb59a0 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1758,16 +1758,11 @@ enum compact_result try_to_compact_pages(gfp_t gfp_mask, unsigned int order, unsigned int alloc_flags, const struct alloc_context *ac, enum compact_priority prio) { - int may_perform_io = gfp_mask & __GFP_IO; struct zoneref *z; struct zone *zone; enum compact_result rc = COMPACT_SKIPPED; - /* - * Check if the GFP flags allow compaction - GFP_NOIO is really - * tricky context because the migration might require IO - */ - if (!may_perform_io) + if (!gfp_compaction_allowed(gfp_mask)) return COMPACT_SKIPPED; trace_mm_compaction_try_to_compact_pages(order, gfp_mask, prio); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 19eb551e21d75..e2360fe3616d6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4366,6 +4366,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, struct alloc_context *ac) { bool can_direct_reclaim = gfp_mask & __GFP_DIRECT_RECLAIM; + bool can_compact = gfp_compaction_allowed(gfp_mask); const bool costly_order = order > PAGE_ALLOC_COSTLY_ORDER; struct page *page = NULL; unsigned int alloc_flags; @@ -4435,7 +4436,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, * Don't try this for allocations that are allowed to ignore * watermarks, as the ALLOC_NO_WATERMARKS attempt didn't yet happen. */ - if (can_direct_reclaim && + if (can_direct_reclaim && can_compact && (costly_order || (order > 0 && ac->migratetype != MIGRATE_MOVABLE)) && !gfp_pfmemalloc_allowed(gfp_mask)) { @@ -4522,9 +4523,10 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, /* * Do not retry costly high order allocations unless they are - * __GFP_RETRY_MAYFAIL + * __GFP_RETRY_MAYFAIL and we can compact */ - if (costly_order && !(gfp_mask & __GFP_RETRY_MAYFAIL)) + if (costly_order && (!can_compact || + !(gfp_mask & __GFP_RETRY_MAYFAIL))) goto nopage; if (should_reclaim_retry(gfp_mask, order, ac, alloc_flags, @@ -4537,7 +4539,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order, * implementation of the compaction depends on the sufficient amount * of free memory (see __compaction_suitable) */ - if (did_some_progress > 0 && + if (did_some_progress > 0 && can_compact && should_compact_retry(ac, order, alloc_flags, compact_result, &compact_priority, &compaction_retries)) diff --git a/mm/vmscan.c b/mm/vmscan.c index 00ed94bfea784..40bcde9d56be8 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2651,7 +2651,7 @@ static void shrink_node_memcg(struct pglist_data *pgdat, struct mem_cgroup *memc /* Use reclaim/compaction for costly allocs or under memory pressure */ static bool in_reclaim_compaction(struct scan_control *sc) { - if (IS_ENABLED(CONFIG_COMPACTION) && sc->order && + if (gfp_compaction_allowed(sc->gfp_mask) && sc->order && (sc->order > PAGE_ALLOC_COSTLY_ORDER || sc->priority < DEF_PRIORITY - 2)) return true; @@ -2913,6 +2913,9 @@ static inline bool compaction_ready(struct zone *zone, struct scan_control *sc) unsigned long watermark; enum compact_result suitable; + if (!gfp_compaction_allowed(sc->gfp_mask)) + return false; + suitable = compaction_suitable(zone, sc->order, 0, sc->reclaim_idx); if (suitable == COMPACT_SUCCESS) /* Allocation should succeed already. Don't reclaim. */ -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> mainline inclusion from mainline-v6.10-rc1 commit cf7385cb26ac4f0ee6c7385960525ad534323252 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Conflicts: drivers/of/module.c [of_modalias() was in drivers/of/device.c before commit bd7a7ed774af ("of: Move of_modalias() to module.c") and was named as of_device_get_modalias() before commit 5c3d15e127eb ("of: Update of_device_get_modalias()"). Both commits are in v6.4.] Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/device.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/device.c b/drivers/of/device.c index 566d8af05157..65235ff63c5d 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -225,14 +225,15 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T', dev->of_node->type); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(dev->of_node, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH OLK-5.10] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> mainline inclusion from mainline-v6.10-rc1 commit cf7385cb26ac4f0ee6c7385960525ad534323252 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Conflicts: drivers/of/module.c [of_modalias() was in drivers/of/device.c before commit bd7a7ed774af ("of: Move of_modalias() to module.c") and was named as of_device_get_modalias() before commit 5c3d15e127eb ("of: Update of_device_get_modalias()"). Both commits are in v6.4.] Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/device.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/device.c b/drivers/of/device.c index 3a547793135c..93f08f18f6b3 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -231,14 +231,15 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T', of_node_get_device_type(dev->of_node)); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(dev->of_node, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH OLK-5.10] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> mainline inclusion from mainline-v6.10-rc1 commit cf7385cb26ac4f0ee6c7385960525ad534323252 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Conflicts: drivers/of/device.c [of_modalias() was in drivers/of/device.c before commit bd7a7ed774af ("of: Move of_modalias() to module.c") and was named as of_device_get_modalias() before commit 5c3d15e127eb ("of: Update of_device_get_modalias()"). Both commits are in v6.4.] Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/device.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/device.c b/drivers/of/device.c index 3a547793135c..93f08f18f6b3 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -231,14 +231,15 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T', of_node_get_device_type(dev->of_node)); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(dev->of_node, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group
by Luo Gengkun 21 Jun '24

21 Jun '24

From: Junhao He <hejunhao3(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit 77fce82678ea5fd51442e62febec2004f79e041b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S7E CVE: CVE-2024-38569 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs. Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written to array bounds. There are 9 different events in an event_group. [1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}' Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> Reviewed-by: Jijie Shao <shaojijie(a)huawei.com> Acked-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Link: https://lore.kernel.org/r/20240425124627.13764-2-hejunhao3@huawei.com Signed-off-by: Will Deacon <will(a)kernel.org> Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 26a63e7539c0..4018bdca0a36 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -356,15 +356,27 @@ static bool hisi_pcie_pmu_validate_event_group(struct perf_event *event) return false; for (num = 0; num < counters; num++) { + /* + * If we find a related event, then it's a valid group + * since we don't need to allocate a new counter for it. + */ if (hisi_pcie_pmu_cmp_event(event_group[num], sibling)) break; } + /* + * Otherwise it's a new event but if there's no available counter, + * fail the check since we cannot schedule all the events in + * the group simultaneously. + */ + if (num == HISI_PCIE_MAX_COUNTERS) + return false; + if (num == counters) event_group[counters++] = sibling; } - return counters <= HISI_PCIE_MAX_COUNTERS; + return true; } static int hisi_pcie_pmu_event_init(struct perf_event *event) -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] of: module: add buffer overflow check in of_modalias()
by GONG, Ruiqi 21 Jun '24

21 Jun '24

From: Sergey Shtylyov <s.shtylyov(a)omp.ru> mainline inclusion from mainline-v6.10-rc1 commit cf7385cb26ac4f0ee6c7385960525ad534323252 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SDQ CVE: CVE-2024-38541 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… --------------------------- In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). Fixes: bc575064d688 ("of/device: use of_property_for_each_string to parse compatible strings") Signed-off-by: Sergey Shtylyov <s.shtylyov(a)omp.ru> Link: https://lore.kernel.org/r/bbfc6be0-c687-62b6-d015-5141b93f313e@omp.ru Signed-off-by: Rob Herring <robh(a)kernel.org> Conflicts: drivers/of/device.c [of_modalias() was in drivers/of/device.c before commit bd7a7ed774af ("of: Move of_modalias() to module.c") and was named as of_device_get_modalias() before commit 5c3d15e127eb ("of: Update of_device_get_modalias()"). Both commits are in v6.4.] Signed-off-by: GONG, Ruiqi <gongruiqi1(a)huawei.com> --- drivers/of/device.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/of/device.c b/drivers/of/device.c index 566d8af05157..65235ff63c5d 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -225,14 +225,15 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len csize = snprintf(str, len, "of:N%pOFn%c%s", dev->of_node, 'T', dev->of_node->type); tsize = csize; + if (csize >= len) + csize = len > 0 ? len - 1 : 0; len -= csize; - if (str) - str += csize; + str += csize; of_property_for_each_string(dev->of_node, "compatible", p, compat) { csize = strlen(compat) + 1; tsize += csize; - if (csize > len) + if (csize >= len) continue; csize = snprintf(str, len, "C%s", compat); -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: sched: sch_multiq: fix possible OOB write in multiq_tune()
by Zhengchao Shao 21 Jun '24

21 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> mainline inclusion from mainline-v6.10-rc3 commit affc18fdc694190ca7575b9a86632a73b9fe043d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6R4J CVE: CVE-2024-36978 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- q->bands will be assigned to qopt->bands to execute subsequent code logic after kmalloc. So the old q->bands should not be used in kmalloc. Otherwise, an out-of-bounds write will occur. Fixes: c2999f7fb05b ("net: sched: multiq: don't call qdisc_put() while holding tree lock") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/sched/sch_multiq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index 5c27b4270b90..36068029c35e 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -186,7 +186,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt, qopt->bands = qdisc_dev(sch)->real_num_tx_queues; - removed = kmalloc(sizeof(*removed) * (q->max_bands - q->bands), + removed = kmalloc(sizeof(*removed) * (q->max_bands - qopt->bands), GFP_KERNEL); if (!removed) return -ENOMEM; -- 2.34.1

2 1

[PATCH OLK-5.10] drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group
by Luo Gengkun 20 Jun '24

20 Jun '24

From: Junhao He <hejunhao3(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit 77fce82678ea5fd51442e62febec2004f79e041b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S7E CVE: CVE-2024-38569 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs. Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written to array bounds. There are 9 different events in an event_group. [1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}' Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> Reviewed-by: Jijie Shao <shaojijie(a)huawei.com> Acked-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Link: https://lore.kernel.org/r/20240425124627.13764-2-hejunhao3@huawei.com Signed-off-by: Will Deacon <will(a)kernel.org> Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 26a63e7539c0..4018bdca0a36 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -356,15 +356,27 @@ static bool hisi_pcie_pmu_validate_event_group(struct perf_event *event) return false; for (num = 0; num < counters; num++) { + /* + * If we find a related event, then it's a valid group + * since we don't need to allocate a new counter for it. + */ if (hisi_pcie_pmu_cmp_event(event_group[num], sibling)) break; } + /* + * Otherwise it's a new event but if there's no available counter, + * fail the check since we cannot schedule all the events in + * the group simultaneously. + */ + if (num == HISI_PCIE_MAX_COUNTERS) + return false; + if (num == counters) event_group[counters++] = sibling; } - return counters <= HISI_PCIE_MAX_COUNTERS; + return true; } static int hisi_pcie_pmu_event_init(struct perf_event *event) -- 2.34.1

2 1

[PATCH OLK-5.10] drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group mainline inclusion from mainline-v6.10-rc1 commit 77fce82678ea5fd51442e62febec2004f79e041b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S7E CVE: CVE-2024-38569
by Luo Gengkun 20 Jun '24

20 Jun '24

From: Junhao He <hejunhao3(a)huawei.com> Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The perf tool allows users to create event groups through following cmd [1], but the driver does not check whether the array index is out of bounds when writing data to the event_group array. If the number of events in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write overflow of event_group array occurs. Add array index check to fix the possible array out of bounds violation, and return directly when write new events are written to array bounds. There are 9 different events in an event_group. [1] perf stat -e '{pmu/event1/, ... ,pmu/event9/}' Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> Reviewed-by: Jijie Shao <shaojijie(a)huawei.com> Acked-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Link: https://lore.kernel.org/r/20240425124627.13764-2-hejunhao3@huawei.com Signed-off-by: Will Deacon <will(a)kernel.org> Signed-off-by: Luo Gengkun <luogengkun2(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 26a63e7539c0..4018bdca0a36 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -356,15 +356,27 @@ static bool hisi_pcie_pmu_validate_event_group(struct perf_event *event) return false; for (num = 0; num < counters; num++) { + /* + * If we find a related event, then it's a valid group + * since we don't need to allocate a new counter for it. + */ if (hisi_pcie_pmu_cmp_event(event_group[num], sibling)) break; } + /* + * Otherwise it's a new event but if there's no available counter, + * fail the check since we cannot schedule all the events in + * the group simultaneously. + */ + if (num == HISI_PCIE_MAX_COUNTERS) + return false; + if (num == counters) event_group[counters++] = sibling; } - return counters <= HISI_PCIE_MAX_COUNTERS; + return true; } static int hisi_pcie_pmu_event_init(struct perf_event *event) -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 0/2] CVE-2021-47231
by Zhang Changzhong 20 Jun '24

20 Jun '24

Pavel Skripkin (2): can: mcba_usb: fix memory leak in mcba_usb can: mcba_usb_start(): add missing urb->transfer_dma initialization drivers/net/can/usb/mcba_usb.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) -- 2.9.5

2 3

[PATCH OLK-6.6] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 20 Jun '24

20 Jun '24

From: Justin Green <greenjustin(a)chromium.org> mainline inclusion from mainline-v6.10-rc1 commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 4f2e3feabc0f..1bf229615b01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -38,6 +38,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH OLK-5.10] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 20 Jun '24

20 Jun '24

From: Justin Green <greenjustin(a)chromium.org> mainline inclusion from mainline-v6.10-rc1 commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 4f2e3feabc0f..1bf229615b01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -38,6 +38,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
by Zhang Changzhong 20 Jun '24

20 Jun '24

From: Zheng Wang <zyytlz.wz(a)163.com> stable inclusion from stable-v5.10.215 commit bacb8c3ab86dcd760c15903fcee58169bc3026aa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q990 CVE: CVE-2024-35811 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 0f7352557a35ab7888bc7831411ec8a3cbe20d78 ] This is the candidate patch of CVE-2023-47233 : https://nvd.nist.gov/vuln/detail/CVE-2023-47233 In brcm80211 driver,it starts with the following invoking chain to start init a timeout worker: ->brcmf_usb_probe ->brcmf_usb_probe_cb ->brcmf_attach ->brcmf_bus_started ->brcmf_cfg80211_attach ->wl_init_priv ->brcmf_init_escan ->INIT_WORK(&cfg->escan_timeout_work, brcmf_cfg80211_escan_timeout_worker); If we disconnect the USB by hotplug, it will call brcmf_usb_disconnect to make cleanup. The invoking chain is : brcmf_usb_disconnect ->brcmf_usb_disconnect_cb ->brcmf_detach ->brcmf_cfg80211_detach ->kfree(cfg); While the timeout woker may still be running. This will cause a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker. Fix it by deleting the timer and canceling the worker in brcmf_cfg80211_detach. Fixes: e756af5b30b0 ("brcmfmac: add e-scan support.") Signed-off-by: Zheng Wang <zyytlz.wz(a)163.com> Cc: stable(a)vger.kernel.org [arend.vanspriel(a)broadcom.com: keep timer delete as is and cancel work just before free] Signed-off-by: Arend van Spriel <arend.vanspriel(a)broadcom.com> Signed-off-by: Kalle Valo <kvalo(a)kernel.org> Link: https://msgid.link/20240107072504.392713-1-arend.vanspriel@broadcom.com Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 300c63d..ec8a666 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -787,8 +787,7 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, scan_request = cfg->scan_request; cfg->scan_request = NULL; - if (timer_pending(&cfg->escan_timeout)) - del_timer_sync(&cfg->escan_timeout); + timer_delete_sync(&cfg->escan_timeout); if (fw_abort) { /* Do a scan abort to stop the driver's scan engine */ @@ -7656,6 +7655,7 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) brcmf_btcoex_detach(cfg); wiphy_unregister(cfg->wiphy); wl_deinit_priv(cfg); + cancel_work_sync(&cfg->escan_timeout_work); brcmf_free_wiphy(cfg->wiphy); kfree(cfg); } -- 2.9.5

2 1

[PATCH openEuler-1.0-LTS] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 20 Jun '24

20 Jun '24

From: Justin Green <greenjustin(a)chromium.org> mainline inclusion from mainline-v6.10-rc1 commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 4f2e3feabc0f..1bf229615b01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -38,6 +38,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] drm/mediatek: Add 0 size check to mtk_drm_gem_obj
by Liu Chuang 20 Jun '24

20 Jun '24

From: Justin Green <greenjustin(a)chromium.org> mainline inclusion from mainline-v6.10-rc1 commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8E CVE: CVE-2024-38549 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object of 0 bytes. Currently, no such check exists and the kernel will panic if a userspace application attempts to allocate a 0x0 GBM buffer. Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and verifying that we now return EINVAL. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Justin Green <greenjustin(a)chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> Reviewed-by: CK Hu <ck.hu(a)mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425… Signed-off-by: Chun-Kuang Hu <chunkuang.hu(a)kernel.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 4f2e3feabc0f..1bf229615b01 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -38,6 +38,9 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, size = round_up(size, PAGE_SIZE); + if (size == 0) + return ERR_PTR(-EINVAL); + mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); if (!mtk_gem_obj) return ERR_PTR(-ENOMEM); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] can: mcba_usb: fix memory leak in mcba_usb
by Zhang Changzhong 20 Jun '24

20 Jun '24

From: Pavel Skripkin <paskripkin(a)gmail.com> stable inclusion from stable-v4.19.196 commit a115198caaab6d663bef75823a3c5f0802306d60 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4I3 CVE: CVE-2021-47231 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 91c02557174be7f72e46ed7311e3bea1939840b0 upstream. Syzbot reported memory leak in SocketCAN driver for Microchip CAN BUS Analyzer Tool. The problem was in unfreed usb_coherent. In mcba_usb_start() 20 coherent buffers are allocated and there is nothing, that frees them: 1) In callback function the urb is resubmitted and that's all 2) In disconnect function urbs are simply killed, but URB_FREE_BUFFER is not set (see mcba_usb_start) and this flag cannot be used with coherent buffers. Fail log: | [ 1354.053291][ T8413] mcba_usb 1-1:0.0 can0: device disconnected | [ 1367.059384][ T8420] kmemleak: 20 new suspected memory leaks (see /sys/kernel/debug/kmem) So, all allocated buffers should be freed with usb_free_coherent() explicitly NOTE: The same pattern for allocating and freeing coherent buffers is used in drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c Fixes: 51f3baad7de9 ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer") Link: https://lore.kernel.org/r/20210609215833.30393-1-paskripkin@gmail.com Cc: linux-stable <stable(a)vger.kernel.org> Reported-and-tested-by: syzbot+57281c762a3922e14dfe(a)syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin(a)gmail.com> Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- drivers/net/can/usb/mcba_usb.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 25fcec5..00db298 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -93,6 +93,8 @@ struct mcba_priv { bool can_ka_first_pass; bool can_speed_check; atomic_t free_ctx_cnt; + void *rxbuf[MCBA_MAX_RX_URBS]; + dma_addr_t rxbuf_dma[MCBA_MAX_RX_URBS]; }; /* CAN frame */ @@ -643,6 +645,7 @@ static int mcba_usb_start(struct mcba_priv *priv) for (i = 0; i < MCBA_MAX_RX_URBS; i++) { struct urb *urb = NULL; u8 *buf; + dma_addr_t buf_dma; /* create a URB, and a buffer for it */ urb = usb_alloc_urb(0, GFP_KERNEL); @@ -652,7 +655,7 @@ static int mcba_usb_start(struct mcba_priv *priv) } buf = usb_alloc_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, - GFP_KERNEL, &urb->transfer_dma); + GFP_KERNEL, &buf_dma); if (!buf) { netdev_err(netdev, "No memory left for USB buffer\n"); usb_free_urb(urb); @@ -671,11 +674,14 @@ static int mcba_usb_start(struct mcba_priv *priv) if (err) { usb_unanchor_urb(urb); usb_free_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, - buf, urb->transfer_dma); + buf, buf_dma); usb_free_urb(urb); break; } + priv->rxbuf[i] = buf; + priv->rxbuf_dma[i] = buf_dma; + /* Drop reference, USB core will take care of freeing it */ usb_free_urb(urb); } @@ -718,7 +724,14 @@ static int mcba_usb_open(struct net_device *netdev) static void mcba_urb_unlink(struct mcba_priv *priv) { + int i; + usb_kill_anchored_urbs(&priv->rx_submitted); + + for (i = 0; i < MCBA_MAX_RX_URBS; ++i) + usb_free_coherent(priv->udev, MCBA_USB_RX_BUFF_SIZE, + priv->rxbuf[i], priv->rxbuf_dma[i]); + usb_kill_anchored_urbs(&priv->tx_submitted); } -- 2.9.5

2 2

[PATCH openEuler-1.0-LTS] inet_diag: fix kernel-infoleak for UDP sockets
by Zhengchao Shao 20 Jun '24

20 Jun '24

From: Eric Dumazet <edumazet(a)google.com> mainline inclusion from mainline-v5.16-rc6 commit 71ddeac8cd1d217744a0e060ff520e147c9328d1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SGV CVE: CVE-2021-47597 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- KMSAN reported a kernel-infoleak [1], that can exploited by unpriv users. After analysis it turned out UDP was not initializing r->idiag_expires. Other users of inet_sk_diag_fill() might make the same mistake in the future, so fix this in inet_sk_diag_fill(). [1] BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline] BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:156 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x69d/0x25c0 lib/iov_iter.c:670 instrument_copy_to_user include/linux/instrumented.h:121 [inline] copyout lib/iov_iter.c:156 [inline] _copy_to_iter+0x69d/0x25c0 lib/iov_iter.c:670 copy_to_iter include/linux/uio.h:155 [inline] simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519 __skb_datagram_iter+0x2cb/0x1280 net/core/datagram.c:425 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3657 [inline] netlink_recvmsg+0x660/0x1c60 net/netlink/af_netlink.c:1974 sock_recvmsg_nosec net/socket.c:944 [inline] sock_recvmsg net/socket.c:962 [inline] sock_read_iter+0x5a9/0x630 net/socket.c:1035 call_read_iter include/linux/fs.h:2156 [inline] new_sync_read fs/read_write.c:400 [inline] vfs_read+0x1631/0x1980 fs/read_write.c:481 ksys_read+0x28c/0x520 fs/read_write.c:619 __do_sys_read fs/read_write.c:629 [inline] __se_sys_read fs/read_write.c:627 [inline] __x64_sys_read+0xdb/0x120 fs/read_write.c:627 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit was created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1126 [inline] netlink_dump+0x3d5/0x16a0 net/netlink/af_netlink.c:2245 __netlink_dump_start+0xd1c/0xee0 net/netlink/af_netlink.c:2370 netlink_dump_start include/linux/netlink.h:254 [inline] inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1343 sock_diag_rcv_msg+0x24a/0x620 netlink_rcv_skb+0x447/0x800 net/netlink/af_netlink.c:2491 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:276 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x1095/0x1360 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x16f3/0x1870 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] sock_write_iter+0x594/0x690 net/socket.c:1057 do_iter_readv_writev+0xa7f/0xc70 do_iter_write+0x52c/0x1500 fs/read_write.c:851 vfs_writev fs/read_write.c:924 [inline] do_writev+0x63f/0xe30 fs/read_write.c:967 __do_sys_writev fs/read_write.c:1040 [inline] __se_sys_writev fs/read_write.c:1037 [inline] __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Bytes 68-71 of 312 are uninitialized Memory access of size 312 starts at ffff88812ab54000 Data copied to user address 0000000020001440 CPU: 1 PID: 6365 Comm: syz-executor801 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Fixes: 3c4d05c80567 ("inet_diag: Introduce the inet socket dumping routine") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Reported-by: syzbot <syzkaller(a)googlegroups.com> Link: https://lore.kernel.org/r/20211209185058.53917-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/ipv4/inet_diag.c [The conflict occurs because the commit 5682d393b40e("inet_diag: Refactor inet_sk_diag_fill(), dump(), and dump_one()") is not merged] Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/ipv4/inet_diag.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index d07917059d70..2bbd320c4f22 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -204,6 +204,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, r->idiag_state = sk->sk_state; r->idiag_timer = 0; r->idiag_retrans = 0; + r->idiag_expires = 0; if (inet_diag_msg_attrs_fill(sk, skb, r, ext, user_ns, net_admin)) goto errout; @@ -255,9 +256,6 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, r->idiag_retrans = icsk->icsk_probes_out; r->idiag_expires = jiffies_to_msecs(sk->sk_timer.expires - jiffies); - } else { - r->idiag_timer = 0; - r->idiag_expires = 0; } if ((ext & (1 << (INET_DIAG_INFO - 1))) && handler->idiag_info_size) { -- 2.34.1

2 2

[PATCH openEuler-22.03-LTS-SP1] net: sched: sch_multiq: fix possible OOB write in multiq_tune()
by Zhengchao Shao 20 Jun '24

20 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> mainline inclusion from mainline-v6.10-rc3 commit affc18fdc694190ca7575b9a86632a73b9fe043d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6R4J CVE: CVE-2024-36978 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- q->bands will be assigned to qopt->bands to execute subsequent code logic after kmalloc. So the old q->bands should not be used in kmalloc. Otherwise, an out-of-bounds write will occur. Fixes: c2999f7fb05b ("net: sched: multiq: don't call qdisc_put() while holding tree lock") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/sched/sch_multiq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index 5c27b4270b90..36068029c35e 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -186,7 +186,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt, qopt->bands = qdisc_dev(sch)->real_num_tx_queues; - removed = kmalloc(sizeof(*removed) * (q->max_bands - q->bands), + removed = kmalloc(sizeof(*removed) * (q->max_bands - qopt->bands), GFP_KERNEL); if (!removed) return -ENOMEM; -- 2.34.1

2 1

[PATCH OLK-5.10] net: sched: sch_multiq: fix possible OOB write in multiq_tune()
by Zhengchao Shao 20 Jun '24

20 Jun '24

From: Hangyu Hua <hbh25y(a)gmail.com> mainline inclusion from mainline-v6.10-rc3 commit affc18fdc694190ca7575b9a86632a73b9fe043d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6R4J CVE: CVE-2024-36978 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- q->bands will be assigned to qopt->bands to execute subsequent code logic after kmalloc. So the old q->bands should not be used in kmalloc. Otherwise, an out-of-bounds write will occur. Fixes: c2999f7fb05b ("net: sched: multiq: don't call qdisc_put() while holding tree lock") Signed-off-by: Hangyu Hua <hbh25y(a)gmail.com> Acked-by: Cong Wang <cong.wang(a)bytedance.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/sched/sch_multiq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c index 1c6dbcfa89b8..77fd7be3a9cd 100644 --- a/net/sched/sch_multiq.c +++ b/net/sched/sch_multiq.c @@ -185,7 +185,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt, qopt->bands = qdisc_dev(sch)->real_num_tx_queues; - removed = kmalloc(sizeof(*removed) * (q->max_bands - q->bands), + removed = kmalloc(sizeof(*removed) * (q->max_bands - qopt->bands), GFP_KERNEL); if (!removed) return -ENOMEM; -- 2.34.1

2 1

[PATCH OLK-5.10 0/3] CVE-2024-26661 following bugfix
by Liao Chen 20 Jun '24

20 Jun '24

In order to apply (drm/amd/display: Fix && vs || typos) in full, we revert it, merge its precedent, and apply it back. Dan Carpenter (1): drm/amd/display: Fix && vs || typos Liao Chen (1): Revert "drm/amd/display: Fix && vs || typos" Srinivasan Shanmugam (1): drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- 2.34.1

2 4

[PATCH openEuler-1.0-LTS] ring-buffer: Fix a race between readers and resize checks
by Zheng Yejian 20 Jun '24

20 Jun '24

From: Petr Pavlu <petr.pavlu(a)suse.com> mainline inclusion from mainline-v6.10-rc1 commit c2274b908db05529980ec056359fae916939fdaa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8L CVE: CVE-2024-38601 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The reader code in rb_get_reader_page() swaps a new reader page into the ring buffer by doing cmpxchg on old->list.prev->next to point it to the new page. Following that, if the operation is successful, old->list.next->prev gets updated too. This means the underlying doubly-linked list is temporarily inconsistent, page->prev->next or page->next->prev might not be equal back to page for some page in the ring buffer. The resize operation in ring_buffer_resize() can be invoked in parallel. It calls rb_check_pages() which can detect the described inconsistency and stop further tracing: [ 190.271762] ------------[ cut here ]------------ [ 190.271771] WARNING: CPU: 1 PID: 6186 at kernel/trace/ring_buffer.c:1467 rb_check_pages.isra.0+0x6a/0xa0 [ 190.271789] Modules linked in: [...] [ 190.271991] Unloaded tainted modules: intel_uncore_frequency(E):1 skx_edac(E):1 [ 190.272002] CPU: 1 PID: 6186 Comm: cmd.sh Kdump: loaded Tainted: G E 6.9.0-rc6-default #5 158d3e1e6d0b091c34c3b96bfd99a1c58306d79f [ 190.272011] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552c-rebuilt.opensuse.org 04/01/2014 [ 190.272015] RIP: 0010:rb_check_pages.isra.0+0x6a/0xa0 [ 190.272023] Code: [...] [ 190.272028] RSP: 0018:ffff9c37463abb70 EFLAGS: 00010206 [ 190.272034] RAX: ffff8eba04b6cb80 RBX: 0000000000000007 RCX: ffff8eba01f13d80 [ 190.272038] RDX: ffff8eba01f130c0 RSI: ffff8eba04b6cd00 RDI: ffff8eba0004c700 [ 190.272042] RBP: ffff8eba0004c700 R08: 0000000000010002 R09: 0000000000000000 [ 190.272045] R10: 00000000ffff7f52 R11: ffff8eba7f600000 R12: ffff8eba0004c720 [ 190.272049] R13: ffff8eba00223a00 R14: 0000000000000008 R15: ffff8eba067a8000 [ 190.272053] FS: 00007f1bd64752c0(0000) GS:ffff8eba7f680000(0000) knlGS:0000000000000000 [ 190.272057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 190.272061] CR2: 00007f1bd6662590 CR3: 000000010291e001 CR4: 0000000000370ef0 [ 190.272070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 190.272073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 190.272077] Call Trace: [ 190.272098] <TASK> [ 190.272189] ring_buffer_resize+0x2ab/0x460 [ 190.272199] __tracing_resize_ring_buffer.part.0+0x23/0xa0 [ 190.272206] tracing_resize_ring_buffer+0x65/0x90 [ 190.272216] tracing_entries_write+0x74/0xc0 [ 190.272225] vfs_write+0xf5/0x420 [ 190.272248] ksys_write+0x67/0xe0 [ 190.272256] do_syscall_64+0x82/0x170 [ 190.272363] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 190.272373] RIP: 0033:0x7f1bd657d263 [ 190.272381] Code: [...] [ 190.272385] RSP: 002b:00007ffe72b643f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 190.272391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1bd657d263 [ 190.272395] RDX: 0000000000000002 RSI: 0000555a6eb538e0 RDI: 0000000000000001 [ 190.272398] RBP: 0000555a6eb538e0 R08: 000000000000000a R09: 0000000000000000 [ 190.272401] R10: 0000555a6eb55190 R11: 0000000000000246 R12: 00007f1bd6662500 [ 190.272404] R13: 0000000000000002 R14: 00007f1bd6667c00 R15: 0000000000000002 [ 190.272412] </TASK> [ 190.272414] ---[ end trace 0000000000000000 ]--- Note that ring_buffer_resize() calls rb_check_pages() only if the parent trace_buffer has recording disabled. Recent commit d78ab792705c ("tracing: Stop current tracer when resizing buffer") causes that it is now always the case which makes it more likely to experience this issue. The window to hit this race is nonetheless very small. To help reproducing it, one can add a delay loop in rb_get_reader_page(): ret = rb_head_page_replace(reader, cpu_buffer->reader_page); if (!ret) goto spin; for (unsigned i = 0; i < 1U << 26; i++) /* inserted delay loop */ __asm__ __volatile__ ("" : : : "memory"); rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list; .. and then run the following commands on the target system: echo 1 > /sys/kernel/tracing/events/sched/sched_switch/enable while true; do echo 16 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 echo 8 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 done & while true; do for i in /sys/kernel/tracing/per_cpu/*; do timeout 0.1 cat $i/trace_pipe; sleep 0.2 done done To fix the problem, make sure ring_buffer_resize() doesn't invoke rb_check_pages() concurrently with a reader operating on the same ring_buffer_per_cpu by taking its cpu_buffer->reader_lock. Link: https://lore.kernel.org/linux-trace-kernel/20240517134008.24529-3-petr.pavl… Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Fixes: 659f451ff213 ("ring-buffer: Add integrity check at end of iter read") Conflicts: kernel/trace/ring_buffer.c [Resolve conflicts due to lack of b4b55dfd965057232abd317fbbfa31d8a2c16a49] Signed-off-by: Petr Pavlu <petr.pavlu(a)suse.com> [ Fixed whitespace ] Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/ring_buffer.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index d3f40c394a2a..cf8ceaca0aa6 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1127,6 +1127,11 @@ static int rb_check_list(struct ring_buffer_per_cpu *cpu_buffer, * * As a safety measure we check to make sure the data pages have not * been corrupted. + * + * Callers of this function need to guarantee that the list of pages doesn't get + * modified during the check. In particular, if it's possible that the function + * is invoked with concurrent readers which can swap in a new reader page then + * the caller should take cpu_buffer->reader_lock. */ static int rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) { @@ -1844,8 +1849,12 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size, */ synchronize_sched(); for_each_buffer_cpu(buffer, cpu) { + unsigned long flags; + cpu_buffer = buffer->buffers[cpu]; + raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags); rb_check_pages(cpu_buffer); + raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); } atomic_dec(&buffer->record_disabled); } -- 2.25.1

2 1

[PATCH OLK-5.10] ring-buffer: Fix a race between readers and resize checks
by Zheng Yejian 20 Jun '24

20 Jun '24

From: Petr Pavlu <petr.pavlu(a)suse.com> mainline inclusion from mainline-v6.10-rc1 commit c2274b908db05529980ec056359fae916939fdaa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8L CVE: CVE-2024-38601 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The reader code in rb_get_reader_page() swaps a new reader page into the ring buffer by doing cmpxchg on old->list.prev->next to point it to the new page. Following that, if the operation is successful, old->list.next->prev gets updated too. This means the underlying doubly-linked list is temporarily inconsistent, page->prev->next or page->next->prev might not be equal back to page for some page in the ring buffer. The resize operation in ring_buffer_resize() can be invoked in parallel. It calls rb_check_pages() which can detect the described inconsistency and stop further tracing: [ 190.271762] ------------[ cut here ]------------ [ 190.271771] WARNING: CPU: 1 PID: 6186 at kernel/trace/ring_buffer.c:1467 rb_check_pages.isra.0+0x6a/0xa0 [ 190.271789] Modules linked in: [...] [ 190.271991] Unloaded tainted modules: intel_uncore_frequency(E):1 skx_edac(E):1 [ 190.272002] CPU: 1 PID: 6186 Comm: cmd.sh Kdump: loaded Tainted: G E 6.9.0-rc6-default #5 158d3e1e6d0b091c34c3b96bfd99a1c58306d79f [ 190.272011] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552c-rebuilt.opensuse.org 04/01/2014 [ 190.272015] RIP: 0010:rb_check_pages.isra.0+0x6a/0xa0 [ 190.272023] Code: [...] [ 190.272028] RSP: 0018:ffff9c37463abb70 EFLAGS: 00010206 [ 190.272034] RAX: ffff8eba04b6cb80 RBX: 0000000000000007 RCX: ffff8eba01f13d80 [ 190.272038] RDX: ffff8eba01f130c0 RSI: ffff8eba04b6cd00 RDI: ffff8eba0004c700 [ 190.272042] RBP: ffff8eba0004c700 R08: 0000000000010002 R09: 0000000000000000 [ 190.272045] R10: 00000000ffff7f52 R11: ffff8eba7f600000 R12: ffff8eba0004c720 [ 190.272049] R13: ffff8eba00223a00 R14: 0000000000000008 R15: ffff8eba067a8000 [ 190.272053] FS: 00007f1bd64752c0(0000) GS:ffff8eba7f680000(0000) knlGS:0000000000000000 [ 190.272057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 190.272061] CR2: 00007f1bd6662590 CR3: 000000010291e001 CR4: 0000000000370ef0 [ 190.272070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 190.272073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 190.272077] Call Trace: [ 190.272098] <TASK> [ 190.272189] ring_buffer_resize+0x2ab/0x460 [ 190.272199] __tracing_resize_ring_buffer.part.0+0x23/0xa0 [ 190.272206] tracing_resize_ring_buffer+0x65/0x90 [ 190.272216] tracing_entries_write+0x74/0xc0 [ 190.272225] vfs_write+0xf5/0x420 [ 190.272248] ksys_write+0x67/0xe0 [ 190.272256] do_syscall_64+0x82/0x170 [ 190.272363] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 190.272373] RIP: 0033:0x7f1bd657d263 [ 190.272381] Code: [...] [ 190.272385] RSP: 002b:00007ffe72b643f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 190.272391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1bd657d263 [ 190.272395] RDX: 0000000000000002 RSI: 0000555a6eb538e0 RDI: 0000000000000001 [ 190.272398] RBP: 0000555a6eb538e0 R08: 000000000000000a R09: 0000000000000000 [ 190.272401] R10: 0000555a6eb55190 R11: 0000000000000246 R12: 00007f1bd6662500 [ 190.272404] R13: 0000000000000002 R14: 00007f1bd6667c00 R15: 0000000000000002 [ 190.272412] </TASK> [ 190.272414] ---[ end trace 0000000000000000 ]--- Note that ring_buffer_resize() calls rb_check_pages() only if the parent trace_buffer has recording disabled. Recent commit d78ab792705c ("tracing: Stop current tracer when resizing buffer") causes that it is now always the case which makes it more likely to experience this issue. The window to hit this race is nonetheless very small. To help reproducing it, one can add a delay loop in rb_get_reader_page(): ret = rb_head_page_replace(reader, cpu_buffer->reader_page); if (!ret) goto spin; for (unsigned i = 0; i < 1U << 26; i++) /* inserted delay loop */ __asm__ __volatile__ ("" : : : "memory"); rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list; .. and then run the following commands on the target system: echo 1 > /sys/kernel/tracing/events/sched/sched_switch/enable while true; do echo 16 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 echo 8 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 done & while true; do for i in /sys/kernel/tracing/per_cpu/*; do timeout 0.1 cat $i/trace_pipe; sleep 0.2 done done To fix the problem, make sure ring_buffer_resize() doesn't invoke rb_check_pages() concurrently with a reader operating on the same ring_buffer_per_cpu by taking its cpu_buffer->reader_lock. Link: https://lore.kernel.org/linux-trace-kernel/20240517134008.24529-3-petr.pavl… Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Fixes: 659f451ff213 ("ring-buffer: Add integrity check at end of iter read") Conflicts: kernel/trace/ring_buffer.c [Resolve conflicts due to lack of b4b55dfd965057232abd317fbbfa31d8a2c16a49] Signed-off-by: Petr Pavlu <petr.pavlu(a)suse.com> [ Fixed whitespace ] Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/ring_buffer.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 041b91c2ba10..8e6738f040d3 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1471,6 +1471,11 @@ static int rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, * * As a safety measure we check to make sure the data pages have not * been corrupted. + * + * Callers of this function need to guarantee that the list of pages doesn't get + * modified during the check. In particular, if it's possible that the function + * is invoked with concurrent readers which can swap in a new reader page then + * the caller should take cpu_buffer->reader_lock. */ static int rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) { @@ -2195,8 +2200,12 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, */ synchronize_rcu(); for_each_buffer_cpu(buffer, cpu) { + unsigned long flags; + cpu_buffer = buffer->buffers[cpu]; + raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags); rb_check_pages(cpu_buffer); + raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); } atomic_dec(&buffer->record_disabled); } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1] ring-buffer: Fix a race between readers and resize checks
by Zheng Yejian 20 Jun '24

20 Jun '24

From: Petr Pavlu <petr.pavlu(a)suse.com> mainline inclusion from mainline-v6.10-rc1 commit c2274b908db05529980ec056359fae916939fdaa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S8L CVE: CVE-2024-38601 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The reader code in rb_get_reader_page() swaps a new reader page into the ring buffer by doing cmpxchg on old->list.prev->next to point it to the new page. Following that, if the operation is successful, old->list.next->prev gets updated too. This means the underlying doubly-linked list is temporarily inconsistent, page->prev->next or page->next->prev might not be equal back to page for some page in the ring buffer. The resize operation in ring_buffer_resize() can be invoked in parallel. It calls rb_check_pages() which can detect the described inconsistency and stop further tracing: [ 190.271762] ------------[ cut here ]------------ [ 190.271771] WARNING: CPU: 1 PID: 6186 at kernel/trace/ring_buffer.c:1467 rb_check_pages.isra.0+0x6a/0xa0 [ 190.271789] Modules linked in: [...] [ 190.271991] Unloaded tainted modules: intel_uncore_frequency(E):1 skx_edac(E):1 [ 190.272002] CPU: 1 PID: 6186 Comm: cmd.sh Kdump: loaded Tainted: G E 6.9.0-rc6-default #5 158d3e1e6d0b091c34c3b96bfd99a1c58306d79f [ 190.272011] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552c-rebuilt.opensuse.org 04/01/2014 [ 190.272015] RIP: 0010:rb_check_pages.isra.0+0x6a/0xa0 [ 190.272023] Code: [...] [ 190.272028] RSP: 0018:ffff9c37463abb70 EFLAGS: 00010206 [ 190.272034] RAX: ffff8eba04b6cb80 RBX: 0000000000000007 RCX: ffff8eba01f13d80 [ 190.272038] RDX: ffff8eba01f130c0 RSI: ffff8eba04b6cd00 RDI: ffff8eba0004c700 [ 190.272042] RBP: ffff8eba0004c700 R08: 0000000000010002 R09: 0000000000000000 [ 190.272045] R10: 00000000ffff7f52 R11: ffff8eba7f600000 R12: ffff8eba0004c720 [ 190.272049] R13: ffff8eba00223a00 R14: 0000000000000008 R15: ffff8eba067a8000 [ 190.272053] FS: 00007f1bd64752c0(0000) GS:ffff8eba7f680000(0000) knlGS:0000000000000000 [ 190.272057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 190.272061] CR2: 00007f1bd6662590 CR3: 000000010291e001 CR4: 0000000000370ef0 [ 190.272070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 190.272073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 190.272077] Call Trace: [ 190.272098] <TASK> [ 190.272189] ring_buffer_resize+0x2ab/0x460 [ 190.272199] __tracing_resize_ring_buffer.part.0+0x23/0xa0 [ 190.272206] tracing_resize_ring_buffer+0x65/0x90 [ 190.272216] tracing_entries_write+0x74/0xc0 [ 190.272225] vfs_write+0xf5/0x420 [ 190.272248] ksys_write+0x67/0xe0 [ 190.272256] do_syscall_64+0x82/0x170 [ 190.272363] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 190.272373] RIP: 0033:0x7f1bd657d263 [ 190.272381] Code: [...] [ 190.272385] RSP: 002b:00007ffe72b643f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 190.272391] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1bd657d263 [ 190.272395] RDX: 0000000000000002 RSI: 0000555a6eb538e0 RDI: 0000000000000001 [ 190.272398] RBP: 0000555a6eb538e0 R08: 000000000000000a R09: 0000000000000000 [ 190.272401] R10: 0000555a6eb55190 R11: 0000000000000246 R12: 00007f1bd6662500 [ 190.272404] R13: 0000000000000002 R14: 00007f1bd6667c00 R15: 0000000000000002 [ 190.272412] </TASK> [ 190.272414] ---[ end trace 0000000000000000 ]--- Note that ring_buffer_resize() calls rb_check_pages() only if the parent trace_buffer has recording disabled. Recent commit d78ab792705c ("tracing: Stop current tracer when resizing buffer") causes that it is now always the case which makes it more likely to experience this issue. The window to hit this race is nonetheless very small. To help reproducing it, one can add a delay loop in rb_get_reader_page(): ret = rb_head_page_replace(reader, cpu_buffer->reader_page); if (!ret) goto spin; for (unsigned i = 0; i < 1U << 26; i++) /* inserted delay loop */ __asm__ __volatile__ ("" : : : "memory"); rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list; .. and then run the following commands on the target system: echo 1 > /sys/kernel/tracing/events/sched/sched_switch/enable while true; do echo 16 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 echo 8 > /sys/kernel/tracing/buffer_size_kb; sleep 0.1 done & while true; do for i in /sys/kernel/tracing/per_cpu/*; do timeout 0.1 cat $i/trace_pipe; sleep 0.2 done done To fix the problem, make sure ring_buffer_resize() doesn't invoke rb_check_pages() concurrently with a reader operating on the same ring_buffer_per_cpu by taking its cpu_buffer->reader_lock. Link: https://lore.kernel.org/linux-trace-kernel/20240517134008.24529-3-petr.pavl… Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Fixes: 659f451ff213 ("ring-buffer: Add integrity check at end of iter read") Conflicts: kernel/trace/ring_buffer.c [Resolve conflicts due to lack of b4b55dfd965057232abd317fbbfa31d8a2c16a49] Signed-off-by: Petr Pavlu <petr.pavlu(a)suse.com> [ Fixed whitespace ] Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> --- kernel/trace/ring_buffer.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 684687f26740..67c4d64319b5 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1423,6 +1423,11 @@ static int rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, * * As a safety measure we check to make sure the data pages have not * been corrupted. + * + * Callers of this function need to guarantee that the list of pages doesn't get + * modified during the check. In particular, if it's possible that the function + * is invoked with concurrent readers which can swap in a new reader page then + * the caller should take cpu_buffer->reader_lock. */ static int rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) { @@ -2142,8 +2147,12 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, */ synchronize_rcu(); for_each_buffer_cpu(buffer, cpu) { + unsigned long flags; + cpu_buffer = buffer->buffers[cpu]; + raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags); rb_check_pages(cpu_buffer); + raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags); } atomic_dec(&buffer->record_disabled); } -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS v3] ftrace: Fix possible use-after-free issue in ftrace_location()
by Zheng Yejian 20 Jun '24

20 Jun '24

mainline inclusion from mainline-v6.10-rc1 commit e60b613df8b6253def41215402f72986fee3fc8d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5H CVE: CVE-2024-38588 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------------ KASAN reports a bug: BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted: CPU1 | CPU2 register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free! To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem(). Link: https://lore.kernel.org/linux-trace-kernel/20240509192859.1273558-1-zhengye… Cc: stable(a)vger.kernel.org Cc: <mhiramat(a)kernel.org> Cc: <mark.rutland(a)arm.com> Cc: <mathieu.desnoyers(a)efficios.com> Fixes: ae6aa16fdc16 ("kprobes: introduce ftrace based optimization") Suggested-by: Steven Rostedt <rostedt(a)goodmis.org> Conflicts: kernel/trace/ftrace.c [Resolve conflicts due to lack of commit aebfd12521d9 ("x86/ibt,ftrace: Search for __fentry__ location")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- kernel/trace/ftrace.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 3ea4c9fa8b57..6704150cb655 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1576,10 +1576,12 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; + unsigned long ip = 0; key.ip = start; key.flags = end; /* overload flags, as it is unsigned long */ + rcu_read_lock(); for (pg = ftrace_pages_start; pg; pg = pg->next) { if (pg->index == 0 || end < pg->records[0].ip || @@ -1588,11 +1590,14 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) rec = bsearch(&key, pg->records, pg->index, sizeof(struct dyn_ftrace), ftrace_cmp_recs); - if (rec) - return rec->ip; + if (rec) { + ip = rec->ip; + break; + } } + rcu_read_unlock(); - return 0; + return ip; } /** @@ -5682,6 +5687,8 @@ static int ftrace_process_locs(struct module *mod, /* We should have used all pages unless we skipped some */ if (pg_unuse) { WARN_ON(!skipped); + /* Need to synchronize with ftrace_location_range() */ + synchronize_rcu(); ftrace_free_pages(pg_unuse); } return ret; @@ -5836,6 +5843,9 @@ void ftrace_release_mod(struct module *mod) out_unlock: mutex_unlock(&ftrace_lock); + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) + synchronize_rcu(); for (pg = tmp_page; pg; pg = tmp_page) { /* Needs to be called outside of ftrace_lock */ @@ -6144,13 +6154,13 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) unsigned long start = (unsigned long)(start_ptr); unsigned long end = (unsigned long)(end_ptr); struct ftrace_page **last_pg = &ftrace_pages_start; + struct ftrace_page *tmp_page = NULL; struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; struct ftrace_mod_map *mod_map = NULL; struct ftrace_init_func *func, *func_next; struct list_head clear_hash; - int order; INIT_LIST_HEAD(&clear_hash); @@ -6188,9 +6198,8 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) ftrace_update_tot_cnt--; if (!pg->index) { *last_pg = pg->next; - order = get_count_order(pg->size / ENTRIES_PER_PAGE); - free_pages((unsigned long)pg->records, order); - kfree(pg); + pg->next = tmp_page; + tmp_page = pg; pg = container_of(last_pg, struct ftrace_page, next); if (!(*last_pg)) ftrace_pages = pg; @@ -6207,6 +6216,11 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) clear_func_from_hashes(func); kfree(func); } + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) { + synchronize_rcu(); + ftrace_free_pages(tmp_page); + } } void __init ftrace_free_init_mem(void) -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/3] Fix CVE-2024-38588
by Zheng Yejian 20 Jun '24

20 Jun '24

Linus Torvalds (1): ftrace: Store the order of pages allocated in ftrace_page Zheng Yejian (2): ftrace: Fix possible warning on checking all pages used in ftrace_process_locs() ftrace: Fix possible use-after-free issue in ftrace_location() kernel/trace/ftrace.c | 90 ++++++++++++++++++++++++++++--------------- 1 file changed, 58 insertions(+), 32 deletions(-) -- 2.25.1

2 4

[PATCH openEuler-22.03-LTS-SP1 v1 0/3] Bugfix backport for rcu
by Wei Li 20 Jun '24

20 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-1.0-LTS v2] ftrace: Fix possible use-after-free issue in ftrace_location()
by Zheng Yejian 20 Jun '24

20 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit e60b613df8b6253def41215402f72986fee3fc8d category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6S5H CVE: CVE-2024-38588 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------------ KASAN reports a bug: BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted: CPU1 | CPU2 register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free! To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem(). Link: https://lore.kernel.org/linux-trace-kernel/20240509192859.1273558-1-zhengye… Cc: stable(a)vger.kernel.org Cc: <mhiramat(a)kernel.org> Cc: <mark.rutland(a)arm.com> Cc: <mathieu.desnoyers(a)efficios.com> Fixes: ae6aa16fdc16 ("kprobes: introduce ftrace based optimization") Suggested-by: Steven Rostedt <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Conflicts: kernel/trace/ftrace.c [Resolve conflicts due to lack of commit aebfd12521d9 ("x86/ibt,ftrace: Search for __fentry__ location")] Signed-off-by: Zheng Yejian <zhengyejian(a)huaweicloud.com> --- kernel/trace/ftrace.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 3ea4c9fa8b57..12ab1ad5f94f 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1576,10 +1576,12 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; + unsigned long ip = 0; key.ip = start; key.flags = end; /* overload flags, as it is unsigned long */ + rcu_read_lock(); for (pg = ftrace_pages_start; pg; pg = pg->next) { if (pg->index == 0 || end < pg->records[0].ip || @@ -1588,11 +1590,14 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) rec = bsearch(&key, pg->records, pg->index, sizeof(struct dyn_ftrace), ftrace_cmp_recs); - if (rec) - return rec->ip; + if (rec) { + ip = rec->ip; + break; + } } + rcu_read_unlock(); - return 0; + return ip; } /** @@ -5682,6 +5687,8 @@ static int ftrace_process_locs(struct module *mod, /* We should have used all pages unless we skipped some */ if (pg_unuse) { WARN_ON(!skipped); + /* Need to synchronize with ftrace_location_range() */ + synchronize_rcu(); ftrace_free_pages(pg_unuse); } return ret; @@ -5836,6 +5843,9 @@ void ftrace_release_mod(struct module *mod) out_unlock: mutex_unlock(&ftrace_lock); + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) + synchronize_rcu(); for (pg = tmp_page; pg; pg = tmp_page) { /* Needs to be called outside of ftrace_lock */ @@ -6144,6 +6154,7 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) unsigned long start = (unsigned long)(start_ptr); unsigned long end = (unsigned long)(end_ptr); struct ftrace_page **last_pg = &ftrace_pages_start; + struct ftrace_page *tmp_page = NULL; struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; @@ -6188,9 +6199,8 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) ftrace_update_tot_cnt--; if (!pg->index) { *last_pg = pg->next; - order = get_count_order(pg->size / ENTRIES_PER_PAGE); - free_pages((unsigned long)pg->records, order); - kfree(pg); + pg->next = tmp_page; + tmp_page = pg; pg = container_of(last_pg, struct ftrace_page, next); if (!(*last_pg)) ftrace_pages = pg; @@ -6207,6 +6217,11 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) clear_func_from_hashes(func); kfree(func); } + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) { + synchronize_rcu(); + ftrace_free_pages(tmp_page); + } } void __init ftrace_free_init_mem(void) -- 2.25.1

3 2

[PATCH openEuler-1.0-LTS] ftrace: Fix possible use-after-free issue in ftrace_location()
by Zheng Yejian 20 Jun '24

20 Jun '24

From: Zheng Yejian <zhengyejian1(a)huawei.com> mainline inclusion from mainline-v6.10-rc1 commit e60b613df8b6253def41215402f72986fee3fc8d category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I9R2TB CVE: CVE-2024-38588 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------------ KASAN reports a bug: BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted: CPU1 | CPU2 register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free! To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem(). Link: https://lore.kernel.org/linux-trace-kernel/20240509192859.1273558-1-zhengye… Cc: stable(a)vger.kernel.org Cc: <mhiramat(a)kernel.org> Cc: <mark.rutland(a)arm.com> Cc: <mathieu.desnoyers(a)efficios.com> Fixes: ae6aa16fdc16 ("kprobes: introduce ftrace based optimization") Suggested-by: Steven Rostedt <rostedt(a)goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Conflicts: kernel/trace/ftrace.c [Resolve conflicts due to lack of commit aebfd12521d9 ("x86/ibt,ftrace: Search for __fentry__ location")] Signed-off-by: Zheng Yejian <zhengyejian(a)huaweicloud.com> --- kernel/trace/ftrace.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 3ea4c9fa8b57..12ab1ad5f94f 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1576,10 +1576,12 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; + unsigned long ip = 0; key.ip = start; key.flags = end; /* overload flags, as it is unsigned long */ + rcu_read_lock(); for (pg = ftrace_pages_start; pg; pg = pg->next) { if (pg->index == 0 || end < pg->records[0].ip || @@ -1588,11 +1590,14 @@ unsigned long ftrace_location_range(unsigned long start, unsigned long end) rec = bsearch(&key, pg->records, pg->index, sizeof(struct dyn_ftrace), ftrace_cmp_recs); - if (rec) - return rec->ip; + if (rec) { + ip = rec->ip; + break; + } } + rcu_read_unlock(); - return 0; + return ip; } /** @@ -5682,6 +5687,8 @@ static int ftrace_process_locs(struct module *mod, /* We should have used all pages unless we skipped some */ if (pg_unuse) { WARN_ON(!skipped); + /* Need to synchronize with ftrace_location_range() */ + synchronize_rcu(); ftrace_free_pages(pg_unuse); } return ret; @@ -5836,6 +5843,9 @@ void ftrace_release_mod(struct module *mod) out_unlock: mutex_unlock(&ftrace_lock); + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) + synchronize_rcu(); for (pg = tmp_page; pg; pg = tmp_page) { /* Needs to be called outside of ftrace_lock */ @@ -6144,6 +6154,7 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) unsigned long start = (unsigned long)(start_ptr); unsigned long end = (unsigned long)(end_ptr); struct ftrace_page **last_pg = &ftrace_pages_start; + struct ftrace_page *tmp_page = NULL; struct ftrace_page *pg; struct dyn_ftrace *rec; struct dyn_ftrace key; @@ -6188,9 +6199,8 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) ftrace_update_tot_cnt--; if (!pg->index) { *last_pg = pg->next; - order = get_count_order(pg->size / ENTRIES_PER_PAGE); - free_pages((unsigned long)pg->records, order); - kfree(pg); + pg->next = tmp_page; + tmp_page = pg; pg = container_of(last_pg, struct ftrace_page, next); if (!(*last_pg)) ftrace_pages = pg; @@ -6207,6 +6217,11 @@ void ftrace_free_mem(struct module *mod, void *start_ptr, void *end_ptr) clear_func_from_hashes(func); kfree(func); } + /* Need to synchronize with ftrace_location_range() */ + if (tmp_page) { + synchronize_rcu(); + ftrace_free_pages(tmp_page); + } } void __init ftrace_free_init_mem(void) -- 2.25.1

3 2

[PATCH OLK-5.10] ksmbd: no response from compound read
by liwei 20 Jun '24

20 Jun '24

From: Namjae Jeon <linkinjeon(a)kernel.org> mainline inclusion from mainline-v6.5-rc4 commit e202a1e8634b186da38cbbff85382ea2b9e297cf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6VIB Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- ksmbd doesn't support compound read. If client send read-read in compound to ksmbd, there can be memory leak from read buffer. Windows and linux clients doesn't send it to server yet. For now, No response from compound read. compound read will be supported soon. Reported-by: zdi-disclosures(a)trendmicro.com # ZDI-CAN-21587, ZDI-CAN-21588 Signed-off-by: Namjae Jeon <linkinjeon(a)kernel.org> Signed-off-by: Steve French <stfrench(a)microsoft.com> Conflicts: fs/smb/server/smb2pdu.c Signed-off-by: liwei <liwei728(a)huawei.com> --- fs/ksmbd/smb2pdu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 7937f860ea8f..50ef53115cab 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -6253,6 +6253,11 @@ int smb2_read(struct ksmbd_work *work) int err = 0; WORK_BUFFERS(work, req, rsp); + if (work->next_smb2_rcv_hdr_off) { + work->send_no_response = 1; + err = -EOPNOTSUPP; + goto out; + } if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) { -- 2.25.1

3 2

[PATCH OLK-6.6] Bluetooth: RFCOMM: Fix not validating setsockopt user input
by Jinjiang Tu 20 Jun '24

20 Jun '24

From: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> stable inclusion from stable-v6.8.7 commit c3f787a3eafe519c93df9abbb0ca5145861c8d0f bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRFS CVE: CVE-2024-35966 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit a97de7bff13b1cc825c1b1344eaed8d6c2d3e695 ] syzbot reported rfcomm_sock_setsockopt_old() 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 rfcomm_sock_setsockopt_old net/bluetooth/rfcomm/sock.c:632 [inline] BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt+0x893/0xa70 net/bluetooth/rfcomm/sock.c:673 Read of size 4 at addr ffff8880209a8bc3 by task syz-executor632/5064 Fixes: 9f2c8a03fbb3 ("Bluetooth: Replace RFCOMM link mode with security level") Fixes: bb23c0ab8246 ("Bluetooth: Add support for deferring RFCOMM connection setup") 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: Jinjiang Tu <tujinjiang(a)huawei.com> --- net/bluetooth/rfcomm/sock.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index b54e8a530f55..29aa07e9db9d 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -629,7 +629,7 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, switch (optname) { case RFCOMM_LM: - if (copy_from_sockptr(&opt, optval, sizeof(u32))) { + if (bt_copy_from_sockptr(&opt, sizeof(opt), optval, optlen)) { err = -EFAULT; break; } @@ -664,7 +664,6 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, struct sock *sk = sock->sk; struct bt_security sec; int err = 0; - size_t len; u32 opt; BT_DBG("sk %p", sk); @@ -686,11 +685,9 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, sec.level = BT_SECURITY_LOW; - len = min_t(unsigned int, sizeof(sec), optlen); - if (copy_from_sockptr(&sec, optval, len)) { - err = -EFAULT; + err = bt_copy_from_sockptr(&sec, sizeof(sec), optval, optlen); + if (err) break; - } if (sec.level > BT_SECURITY_HIGH) { err = -EINVAL; @@ -706,10 +703,9 @@ static int rfcomm_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); -- 2.25.1

3 2

[PATCH OLK-5.10 v2] crypto: jitter - change subsys_initcall(jent_mod_init) back to module_init(jent_mod_init)
by Xiang Yang 20 Jun '24

20 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6GL4 -------------------------------- jent_entropy_init depend on the clocksource being initialized, with the subsys_initcall(jent_mod_init) called in arm32, the initialization of clocksource is after jent_mod_init, so change the subsys_initcall in arm32 to module_init. And the fips depend on jitter init, this feature is controlled by CONFIG_CRYPTO_FIPS, so use CONFIG_CRYPTO_FIPS to isolate the case of the fips problem for arm64/x86 with the dependance of clocksource for arm32. Fixes: 0d9fbb7dcca5 ("crypto: jitter - change module_init(jent_mod_init) to subsys_initcall(jent_mod_init)") Signed-off-by: Xiang Yang <xiangyang3(a)huawei.com> --- crypto/jitterentropy-kcapi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/crypto/jitterentropy-kcapi.c b/crypto/jitterentropy-kcapi.c index b1d7b5a6e61c..4424664496e1 100644 --- a/crypto/jitterentropy-kcapi.c +++ b/crypto/jitterentropy-kcapi.c @@ -214,7 +214,11 @@ static void __exit jent_mod_exit(void) crypto_unregister_rng(&jent_alg); } +#if defined(CONFIG_CRYPTO_FIPS) && (defined(CONFIG_ARM64) || defined(CONFIG_X86)) subsys_initcall(jent_mod_init); +#else +module_init(jent_mod_init); +#endif module_exit(jent_mod_exit); MODULE_LICENSE("Dual BSD/GPL"); -- 2.34.1

3 2

[PATCH OLK-5.10 v2 0/3] Bugfix backport for rcu
by Wei Li 20 Jun '24

20 Jun '24

Backport 3 bugfix patches for rcu from mainline. v1 -> v2: - Fix conflict in patch 2 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

3 5

[PATCH OLK-5.10] Fix token error issue when concurrent calls
by Shengjie Li 20 Jun '24

20 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6GOR -------------------------------- Fix token error issue when concurrent calls Fixes: 31071f4b2a0b ("cvm_tsi: add cvm tsi interface") Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/uapi/asm/cvm_tsi.h | 6 ++- arch/arm64/kernel/cvm_tsi.c | 66 ++++++++------------------- 2 files changed, 24 insertions(+), 48 deletions(-) diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 1ed4386db2..16f0e01598 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -23,9 +23,10 @@ * This macro needs to be updated accordingly if new algorithms are supported. */ #define MAX_MEASUREMENT_SIZE SHA512_SIZE -#define MAX_DEV_CERT_SIZE 4096 +#define MAX_DEV_CERT_SIZE (4096U) -#define MAX_TOKEN_GRANULE_PAGE (10U) +#define GRANULE_SIZE (4096U) +#define MAX_TOKEN_GRANULE_COUNT (2U) #define CHALLENGE_SIZE (64U) struct cvm_attester { @@ -55,6 +56,7 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ + unsigned char token[GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT]; unsigned long token_size; /* return: token size */ }; diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index a020dc12a5..32406a8a38 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -8,8 +8,6 @@ #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> -#define GRANULE_SIZE PAGE_SIZE - struct attestation_token { void *buf; unsigned long size; @@ -20,8 +18,6 @@ static struct attestation_token token; static DEFINE_MUTEX(token_lock); static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -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); @@ -29,7 +25,6 @@ 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, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -54,7 +49,7 @@ static int __init tmm_tsi_init(void) } /* Allocate a large memory */ - token.buf = kzalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); + token.buf = kzalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT, GFP_KERNEL); if (!token.buf) return -ENOMEM; @@ -68,7 +63,7 @@ static int __init tmm_tsi_init(void) static void __exit tmm_tsi_exit(void) { if (token.buf != NULL) { - memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); + memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT); kfree(token.buf); } misc_deregister(&ioctl_dev); @@ -97,32 +92,6 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg return ret; } -static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, - size_t size, loff_t *offset) -{ - int ret; - int to_copy; - - mutex_lock(&token_lock); - if (*offset >= token.size) { - mutex_unlock(&token_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); - mutex_unlock(&token_lock); - return -1; - } - - *offset += to_copy; - mutex_unlock(&token_lock); - return to_copy; -} - - static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { struct cvm_tsi_version ver_measured = {0}; @@ -150,7 +119,7 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { - pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); + pr_err("tmm_tsi: copy challenge from user failed (%lu)!\n", ret); return -EFAULT; } @@ -166,8 +135,13 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) } do { /* Retrieve one Granule of data per loop iteration */ - token_granule.ipa = token_granule.head + - (unsigned long)(token_granule.count * GRANULE_SIZE); + if (token_granule.count + 1 > MAX_TOKEN_GRANULE_COUNT) { + pr_err("tmm_tsi: macro MAX_TOKEN_GRANULE_COUNT (%d) is too small!\n", + MAX_TOKEN_GRANULE_COUNT); + mutex_unlock(&token_lock); + return -ENOMEM; + } + token_granule.ipa = token_granule.head + (token_granule.count * GRANULE_SIZE); token_granule.offset = 0; do { /* Retrieve sub-Granule chunk of data per loop iteration */ @@ -176,23 +150,23 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) token_granule.offset += token_granule.num_wr_bytes; } while (ret == TSI_INCOMPLETE && token_granule.offset < GRANULE_SIZE); - 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); - mutex_unlock(&token_lock); - return -ENOMEM; - } + token_granule.count++; } while (ret == TSI_INCOMPLETE); /* Send to user space the total size of the token */ - token_granule.count = token_granule.count - 1; - token.size = (unsigned long)(GRANULE_SIZE * token_granule.count) + token_granule.offset; + token.size = (GRANULE_SIZE * (token_granule.count - 1)) + token_granule.offset; 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); + pr_err("tmm_tsi: copy token_size to user failed (%lu)!\n", ret); + mutex_unlock(&token_lock); + return -EFAULT; + } + + ret = copy_to_user(arg->token, token.buf, token.size); + if (ret) { + pr_err("tmm_tsi: copy token to user failed (%lu)!\n", ret); mutex_unlock(&token_lock); return -EFAULT; } -- 2.37.2.windows.2

2 1

[PATCH OLK-5.10] Fix token error issue when concurrent calls
by Shengjie Li 20 Jun '24

20 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6GOR -------------------------------- Fix token error issue when concurrent calls Fixes: 31071f4b2a0b ("cvm_tsi: add cvm tsi interface") Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/uapi/asm/cvm_tsi.h | 6 ++- arch/arm64/kernel/cvm_tsi.c | 66 ++++++++------------------- 2 files changed, 24 insertions(+), 48 deletions(-) diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 1ed4386db2..16f0e01598 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -23,9 +23,10 @@ * This macro needs to be updated accordingly if new algorithms are supported. */ #define MAX_MEASUREMENT_SIZE SHA512_SIZE -#define MAX_DEV_CERT_SIZE 4096 +#define MAX_DEV_CERT_SIZE (4096U) -#define MAX_TOKEN_GRANULE_PAGE (10U) +#define GRANULE_SIZE (4096U) +#define MAX_TOKEN_GRANULE_COUNT (2U) #define CHALLENGE_SIZE (64U) struct cvm_attester { @@ -55,6 +56,7 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ + unsigned char token[GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT]; unsigned long token_size; /* return: token size */ }; diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index a020dc12a5..45ad5bd5bc 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -8,8 +8,6 @@ #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> -#define GRANULE_SIZE PAGE_SIZE - struct attestation_token { void *buf; unsigned long size; @@ -20,8 +18,6 @@ static struct attestation_token token; static DEFINE_MUTEX(token_lock); static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -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); @@ -29,7 +25,6 @@ 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, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -54,7 +49,7 @@ static int __init tmm_tsi_init(void) } /* Allocate a large memory */ - token.buf = kzalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE, GFP_KERNEL); + token.buf = kzalloc(GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT, GFP_KERNEL); if (!token.buf) return -ENOMEM; @@ -68,7 +63,7 @@ static int __init tmm_tsi_init(void) static void __exit tmm_tsi_exit(void) { if (token.buf != NULL) { - memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE); + memset(token.buf, 0, GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT); kfree(token.buf); } misc_deregister(&ioctl_dev); @@ -97,32 +92,6 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg return ret; } -static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, - size_t size, loff_t *offset) -{ - int ret; - int to_copy; - - mutex_lock(&token_lock); - if (*offset >= token.size) { - mutex_unlock(&token_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); - mutex_unlock(&token_lock); - return -1; - } - - *offset += to_copy; - mutex_unlock(&token_lock); - return to_copy; -} - - static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { struct cvm_tsi_version ver_measured = {0}; @@ -150,7 +119,7 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { - pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); + pr_err("tmm_tsi: copy challenge from user failed (%lu)!\n", ret); return -EFAULT; } @@ -166,8 +135,13 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) } do { /* Retrieve one Granule of data per loop iteration */ - token_granule.ipa = token_granule.head + - (unsigned long)(token_granule.count * GRANULE_SIZE); + if (token_granule.count + 1 > MAX_TOKEN_GRANULE_COUNT) { + pr_err("tmm_tsi: macro MAX_TOKEN_GRANULE_COUNT (%d) is too small!\n", + MAX_TOKEN_GRANULE_COUNT); + mutex_unlock(&token_lock); + return 1; + } + token_granule.ipa = token_granule.head + (token_granule.count * GRANULE_SIZE); token_granule.offset = 0; do { /* Retrieve sub-Granule chunk of data per loop iteration */ @@ -176,23 +150,23 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) token_granule.offset += token_granule.num_wr_bytes; } while (ret == TSI_INCOMPLETE && token_granule.offset < GRANULE_SIZE); - 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); - mutex_unlock(&token_lock); - return -ENOMEM; - } + token_granule.count++; } while (ret == TSI_INCOMPLETE); /* Send to user space the total size of the token */ - token_granule.count = token_granule.count - 1; - token.size = (unsigned long)(GRANULE_SIZE * token_granule.count) + token_granule.offset; + token.size = (GRANULE_SIZE * (token_granule.count - 1)) + token_granule.offset; 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); + pr_err("tmm_tsi: copy token_size to user failed (%lu)!\n", ret); + mutex_unlock(&token_lock); + return -EFAULT; + } + + ret = copy_to_user(arg->token, token.buf, token.size); + if (ret) { + pr_err("tmm_tsi: copy token to user failed (%lu)!\n", ret); mutex_unlock(&token_lock); return -EFAULT; } -- 2.37.2.windows.2

2 1

[PATCH OLK-6.6 V2 00/18] cachefiles: introduce failover mechanism
by Zizhi Wo 19 Jun '24

19 Jun '24

V2: add subsequent bugfix patches and some clean up. V1: adapt mainline patch for main function Baokun Li (11): cachefiles: add output string to cachefiles_obj_[get|put]_ondemand_fd cachefiles: remove requests from xarray during flushing requests cachefiles: fix slab-use-after-free in cachefiles_ondemand_get_fd() cachefiles: fix slab-use-after-free in cachefiles_ondemand_daemon_read() cachefiles: remove err_put_fd label in cachefiles_ondemand_daemon_read() cachefiles: add consistency check for copen/cread cachefiles: add spin_lock for cachefiles_ondemand_info cachefiles: never get a new anonymous fd if ondemand_id is valid cachefiles: defer exposing anon_fd until after copy_to_user() succeeds cachefiles: flush all requests after setting CACHEFILES_DEAD cachefiles: make on-demand read killable David Howells (1): cachefiles, erofs: Fix NULL deref in when cachefiles is not doing ondemand-mode Jia Zhu (5): cachefiles: introduce object ondemand state cachefiles: extract ondemand info field from cachefiles_object cachefiles: resend an open request if the read request's object is closed cachefiles: narrow the scope of triggering EPOLLIN events in ondemand mode cachefiles: add restore command to recover inflight ondemand read requests Zizhi Wo (1): cachefiles: Set object to close if ondemand_id < 0 in copen fs/cachefiles/daemon.c | 18 +- fs/cachefiles/interface.c | 7 +- fs/cachefiles/internal.h | 64 ++++- fs/cachefiles/ondemand.c | 372 ++++++++++++++++++++++-------- include/trace/events/cachefiles.h | 8 +- 5 files changed, 373 insertions(+), 96 deletions(-) -- 2.39.2

2 19

[PATCH OLK-5.10 0/1] Fix allmodconfig build frame size error
by Shuai Wu 19 Jun '24

19 Jun '24

Fix allmodconfig build frame size is large than 2048 bytes error in hiroce3 driver. Fixes: ae52f9c522dd ("infiniband/hw/hiroce3: Add Huawei Intelligent Network Card RDMA Driver") Shuai Wu (1): RDMA/hiroce3: Fix allmodconfig build frame size error drivers/infiniband/hw/hiroce3/dfx/roce_dfx_query.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) -- 2.33.0

2 2

[PATCH OLK-5.10 0/1] Fix allmodconfig build frame size error
by Shuai Wu 19 Jun '24

19 Jun '24

Fix allmodconfig build frame size is large than 2048 bytes error in hiroce3 driver. Fixes: ae52f9c522dd ("infiniband/hw/hiroce3: Add Huawei Intelligent Network Card RDMA Driver") Shuai Wu (1): net/ethernet/huawei/hiroce3: Fix allmodconfig build frame size error drivers/infiniband/hw/hiroce3/dfx/roce_dfx_query.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) -- 2.33.0

2 2

[PATCH OLK-5.10] Fix token error issue when concurrent calls
by Shengjie Li 19 Jun '24

19 Jun '24

virtcca inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6GOR -------------------------------- Fix token error issue when concurrent calls Fixes: 31071f4b2a0b ("cvm_tsi: add cvm tsi interface") Signed-off-by: Shengjie Li <lishengjie12(a)huawei.com> --- arch/arm64/include/uapi/asm/cvm_tsi.h | 6 ++-- arch/arm64/kernel/cvm_tsi.c | 42 ++++++--------------------- 2 files changed, 13 insertions(+), 35 deletions(-) diff --git a/arch/arm64/include/uapi/asm/cvm_tsi.h b/arch/arm64/include/uapi/asm/cvm_tsi.h index 1ed4386db2..d627382bba 100644 --- a/arch/arm64/include/uapi/asm/cvm_tsi.h +++ b/arch/arm64/include/uapi/asm/cvm_tsi.h @@ -23,9 +23,10 @@ * This macro needs to be updated accordingly if new algorithms are supported. */ #define MAX_MEASUREMENT_SIZE SHA512_SIZE -#define MAX_DEV_CERT_SIZE 4096 +#define MAX_DEV_CERT_SIZE (4096U) -#define MAX_TOKEN_GRANULE_PAGE (10U) +#define GRANULE_SIZE (4096U) +#define MAX_TOKEN_GRANULE_PAGE (2U) #define CHALLENGE_SIZE (64U) struct cvm_attester { @@ -55,6 +56,7 @@ struct cvm_measurement_extend { struct cvm_attestation_cmd { unsigned char challenge[CHALLENGE_SIZE]; /* input: challenge value */ + unsigned char token[GRANULE_SIZE * MAX_TOKEN_GRANULE_PAGE]; unsigned long token_size; /* return: token size */ }; diff --git a/arch/arm64/kernel/cvm_tsi.c b/arch/arm64/kernel/cvm_tsi.c index a020dc12a5..d64687093d 100644 --- a/arch/arm64/kernel/cvm_tsi.c +++ b/arch/arm64/kernel/cvm_tsi.c @@ -8,8 +8,6 @@ #include <asm/cvm_smc.h> #include <asm/cvm_tsi.h> -#define GRANULE_SIZE PAGE_SIZE - struct attestation_token { void *buf; unsigned long size; @@ -20,8 +18,6 @@ static struct attestation_token token; static DEFINE_MUTEX(token_lock); static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -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); @@ -29,7 +25,6 @@ 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, .unlocked_ioctl = tmm_tsi_ioctl }; @@ -97,32 +92,6 @@ static long tmm_tsi_ioctl(struct file *file, unsigned int cmd, unsigned long arg return ret; } -static ssize_t tmm_token_read(struct file *file, char __user *user_buffer, - size_t size, loff_t *offset) -{ - int ret; - int to_copy; - - mutex_lock(&token_lock); - if (*offset >= token.size) { - mutex_unlock(&token_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); - mutex_unlock(&token_lock); - return -1; - } - - *offset += to_copy; - mutex_unlock(&token_lock); - return to_copy; -} - - static int tmm_get_tsi_version(struct cvm_tsi_version __user *arg) { struct cvm_tsi_version ver_measured = {0}; @@ -150,7 +119,7 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) ret = copy_from_user(challenge, &(arg->challenge), CHALLENGE_SIZE); if (ret) { - pr_err("tmm_tsi: copy data from user failed (%lu)!\n", ret); + pr_err("tmm_tsi: copy challenge from user failed (%lu)!\n", ret); return -EFAULT; } @@ -192,7 +161,14 @@ static int tmm_get_attestation_token(struct cvm_attestation_cmd __user *arg) 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); + pr_err("tmm_tsi: copy token_size to user failed (%lu)!\n", ret); + mutex_unlock(&token_lock); + return -EFAULT; + } + + ret = copy_to_user(arg->token, token.buf, token.size); + if (ret) { + pr_err("tmm_tsi: copy token to user failed (%lu)!\n", ret); mutex_unlock(&token_lock); return -EFAULT; } -- 2.37.2.windows.2

2 1

[PATCH openEuler-1.0-LTS] batman-adv: Avoid WARN_ON timing related checks
by heyujie 19 Jun '24

19 Jun '24

From: Sven Eckelmann <sven(a)narfation.org> mainline inclusion from mainline-v5.13-rc7 commit 9f460ae31c4435fd022c443a6029352217a16ac1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4GZ CVE: CVE-2021-47252 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn. Reported-by: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp> Reported-by: syzbot+c0b807de416427ff3dd1(a)syzkaller.appspotmail.com Fixes: ef0a937f7a14 ("batman-adv: consider outgoing interface in OGM sending") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> --- net/batman-adv/bat_iv_ogm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index f5941837c3ad..cf86438edb2e 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -594,8 +594,10 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet) if (WARN_ON(!forw_packet->if_outgoing)) return; - if (WARN_ON(forw_packet->if_outgoing->soft_iface != soft_iface)) + if (forw_packet->if_outgoing->soft_iface != soft_iface) { + pr_warn("%s: soft interface switch for queued OGM\n", __func__); return; + } if (forw_packet->if_incoming->if_status != BATADV_IF_ACTIVE) return; -- 2.34.1

2 1

[PATCH OLK-5.10 v2 0/3] Bugfix backport for rcu
by Wei Li 19 Jun '24

19 Jun '24

Backport 3 bugfix patches for rcu from mainline. v1 -> v2: - Fix conflict in patch 2 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-1.0-LTS] batman-adv: Avoid WARN_ON timing related checks
by heyujie 19 Jun '24

19 Jun '24

From: Sven Eckelmann <sven(a)narfation.org> mainline inclusion from mainline-v5.13-rc7 commit 9f460ae31c4435fd022c443a6029352217a16ac1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4GZ CVE: CVE-2021-47252 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn. Reported-by: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp> Reported-by: syzbot+c0b807de416427ff3dd1(a)syzkaller.appspotmail.com Fixes: ef0a937f7a14 ("batman-adv: consider outgoing interface in OGM sending") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> --- net/batman-adv/bat_iv_ogm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index f5941837c3ad..cf86438edb2e 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -594,8 +594,10 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet) if (WARN_ON(!forw_packet->if_outgoing)) return; - if (WARN_ON(forw_packet->if_outgoing->soft_iface != soft_iface)) + if (forw_packet->if_outgoing->soft_iface != soft_iface) { + pr_warn("%s: soft interface switch for queued OGM\n", __func__); return; + } if (forw_packet->if_incoming->if_status != BATADV_IF_ACTIVE) return; -- 2.34.1

1 0

[PATCH openEuler-1.0-LTS] batman-adv: Avoid WARN_ON timing related checks
by heyujie 19 Jun '24

19 Jun '24

From: Sven Eckelmann <sven(a)narfation.org> mainline inclusion from mainline-v5.13-rc7 commit 9f460ae31c4435fd022c443a6029352217a16ac1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4GZ CVE: CVE-2021-47252 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn. Reported-by: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp> Reported-by: syzbot+c0b807de416427ff3dd1(a)syzkaller.appspotmail.com Fixes: ef0a937f7a14 ("batman-adv: consider outgoing interface in OGM sending") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> --- net/batman-adv/bat_iv_ogm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index f5941837c3ad..cf86438edb2e 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -594,8 +594,10 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet) if (WARN_ON(!forw_packet->if_outgoing)) return; - if (WARN_ON(forw_packet->if_outgoing->soft_iface != soft_iface)) + if (forw_packet->if_outgoing->soft_iface != soft_iface) { + pr_warn("%s: soft interface switch for queued OGM\n", __func__); return; + } if (forw_packet->if_incoming->if_status != BATADV_IF_ACTIVE) return; -- 2.34.1

1 0

[PATCH openEuler-1.0-LTS] batman-adv: Avoid WARN_ON timing related checks
by heyujie 19 Jun '24

19 Jun '24

From: Sven Eckelmann <sven(a)narfation.org> mainline inclusion from mainline-v5.13-rc7 commit 9f460ae31c4435fd022c443a6029352217a16ac1 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4GZ CVE: CVE-2021-47252 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The soft/batadv interface for a queued OGM can be changed during the time the OGM was queued for transmission and when the OGM is actually transmitted by the worker. But WARN_ON must be used to denote kernel bugs and not to print simple warnings. A warning can simply be printed using pr_warn. Reported-by: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp> Reported-by: syzbot+c0b807de416427ff3dd1(a)syzkaller.appspotmail.com Fixes: ef0a937f7a14 ("batman-adv: consider outgoing interface in OGM sending") Signed-off-by: Sven Eckelmann <sven(a)narfation.org> Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> --- net/batman-adv/bat_iv_ogm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index f5941837c3ad..cf86438edb2e 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -594,8 +594,10 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet) if (WARN_ON(!forw_packet->if_outgoing)) return; - if (WARN_ON(forw_packet->if_outgoing->soft_iface != soft_iface)) + if (forw_packet->if_outgoing->soft_iface != soft_iface) { + pr_warn("%s: soft interface switch for queued OGM\n", __func__); return; + } if (forw_packet->if_incoming->if_status != BATADV_IF_ACTIVE) return; -- 2.34.1

1 0

[PATCH openEuler-1.0-LTS 0/2] CVE-2021-47434
by Yuan Can 19 Jun '24

19 Jun '24

Mathias Nyman (1): xhci: Fix commad ring abort, write all 64 bits to CRCR register. Pavankumar Kondeti (1): xhci: Fix command ring pointer corruption while aborting a command drivers/usb/host/xhci-ring.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) -- 2.17.1

2 3

[openeuler:openEuler-1.0-LTS 17072/22974] drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:148:6: sparse: sparse: symbol 'hclge_reset_end_it' was not declared. Should it be static?
by kernel test robot 19 Jun '24

19 Jun '24

Hi Jiaran, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 44bbb358cb1ac8a5d2c2ad270c197cc25fcc39f4 commit: acebebc63e4378ca8b17b877258b702be47ab293 [17072/22974] net: hns3: change hclge_reset_done function name config: arm64-randconfig-r111-20240615 (https://download.01.org/0day-ci/archive/20240619/202406191541.MxoJ4Pzy-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240619/202406191541.MxoJ4Pzy-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/202406191541.MxoJ4Pzy-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:140:44: sparse: sparse: mixing different enum types: drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:140:44: sparse: unsigned int enum hnae3_reset_type drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:140:44: sparse: unsigned int enum hnae3_event_type_custom drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:97:6: sparse: sparse: symbol 'hclge_reset_event_it' was not declared. Should it be static? >> drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:148:6: sparse: sparse: symbol 'hclge_reset_end_it' was not declared. Should it be static? drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:181:6: sparse: sparse: symbol 'hclge_ext_init' was not declared. Should it be static? drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:186:6: sparse: sparse: symbol 'hclge_ext_uninit' was not declared. Should it be static? drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:195:6: sparse: sparse: symbol 'hclge_ext_reset_done' was not declared. Should it be static? drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:204:5: sparse: sparse: symbol 'hclge_init_it' was not declared. Should it be static? drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:97:6: warning: no previous prototype for 'hclge_reset_event_it' [-Wmissing-prototypes] 97 | void hclge_reset_event_it(struct pci_dev *pdev, struct hnae3_handle *handle) | ^~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c: In function 'hclge_reset_event_it': drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:140:44: warning: implicit conversion from 'enum hnae3_reset_type' to 'enum hnae3_event_type_custom' [-Wenum-conversion] 140 | nic_call_event(netdev, hdev->reset_level); | ~~~~^~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c: At top level: drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:148:6: warning: no previous prototype for 'hclge_reset_end_it' [-Wmissing-prototypes] 148 | bool hclge_reset_end_it(struct hnae3_handle *handle, bool done) | ^~~~~~~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:181:6: warning: no previous prototype for 'hclge_ext_init' [-Wmissing-prototypes] 181 | void hclge_ext_init(struct hnae3_handle *handle) | ^~~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:186:6: warning: no previous prototype for 'hclge_ext_uninit' [-Wmissing-prototypes] 186 | void hclge_ext_uninit(struct hnae3_handle *handle) | ^~~~~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:195:6: warning: no previous prototype for 'hclge_ext_reset_done' [-Wmissing-prototypes] 195 | void hclge_ext_reset_done(struct hnae3_handle *handle) | ^~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c:204:5: warning: no previous prototype for 'hclge_init_it' [-Wmissing-prototypes] 204 | int hclge_init_it(void) | ^~~~~~~~~~~~~ vim +/hclge_reset_end_it +148 drivers/net/ethernet/hisilicon/hns3/hns3_extension/hns3pf/hclge_main_it.c 147 > 148 bool hclge_reset_end_it(struct hnae3_handle *handle, bool done) 149 { 150 struct hclge_vport *vport = hclge_get_vport(handle); 151 struct hclge_dev *hdev = vport->back; 152 struct net_device *netdev; 153 154 netdev = hdev->vport[0].nic.netdev; 155 156 if (done) { 157 dev_info(&hdev->pdev->dev, "IT Report Reset DONE!\n"); 158 if (nic_event_call) 159 nic_call_event(netdev, HNAE3_RESET_DONE_CUSTOM); 160 } 161 162 if (hdev->reset_fail_cnt >= HCLGE_RESET_MAX_FAIL_CNT) { 163 dev_err(&hdev->pdev->dev, "IT Report Reset fail!\n"); 164 if (nic_event_call) { 165 if (hdev->reset_type == HNAE3_FUNC_RESET) 166 nic_call_event(netdev, 167 HNAE3_FUNC_RESET_FAIL_CUSTOM); 168 else if (hdev->reset_type == HNAE3_GLOBAL_RESET) 169 nic_call_event(netdev, 170 HNAE3_GLOBAL_RESET_FAIL_CUSTOM); 171 else if (hdev->reset_type == HNAE3_IMP_RESET) 172 nic_call_event(netdev, 173 HNAE3_IMP_RESET_FAIL_CUSTOM); 174 } 175 } 176 177 return done; 178 } 179 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 v2] sched: smart_grid: fix potential NULL pointer dereference
by Yipeng Zou 19 Jun '24

19 Jun '24

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IA6J1H CVE: NA ---------------------------------------- There is a low probability that kernel panic will occur when we test with smart_grid. The log show below: [65160.746953] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 [65160.746990] Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 [65160.756974] Mem abort info: [65160.766849] Mem abort info: [65160.770660] ESR = 0x96000004 [65160.770663] EC = 0x25: DABT (current EL), IL = 32 bits [65160.774374] ESR = 0x96000004 [65160.774377] EC = 0x25: DABT (current EL), IL = 32 bits [65160.778428] SET = 0, FnV = 0 [65160.778430] EA = 0, S1PTW = 0 [65160.784728] SET = 0, FnV = 0 [65160.784731] EA = 0, S1PTW = 0 [65160.786018] Detected VIPT I-cache on CPU104 [65160.786070] GICv3: CPU104: found redistributor 3a0000 region 104: 0x00002000aa300000 [65160.786240] CPU104: Booted secondary processor 0x00003a0000 [0x481fd010] [65160.788696] Data abort info: [65160.788699] ISV = 0, ISS = 0x00000004 [65160.794911] Data abort info: [65160.794913] ISV = 0, ISS = 0x00000004 [65160.798965] CM = 0, WnR = 0 [65160.798967] user pgtable: 4k pages, 48-bit VAs, pgdp=00000030059b2000 [65160.803102] CM = 0, WnR = 0 [65160.803104] user pgtable: 4k pages, 48-bit VAs, pgdp=00000020ab07c000 [65160.807066] [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 [65160.811113] [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 [65160.816199] Internal error: Oops: 0000000096000004 [#1] SMP [65160.832723] Modules linked in: [65161.006841] CPU: 39 PID: 195931 Comm: (hrottler) Kdump: loaded Nottainted 5.10.0 #51 [65161.016660] Hardware name: Huawei TaiShan 200 (Model 5280)/BC82AMDD, BIOS 1.08 12/14/2019 [65161.026146] pstate: 80400089 (Nzcv daIf +PAN -UAO -TCO BTYPE=--) [65161.033199] pc : set_task_select_cpus+0x8c/0x3d0 [65161.038865] lr : select_task_rq_fair+0x1c8/0x5cc [65161.044528] sp : ffff800172673ba0 [65161.048888] x29: ffff800172673ba0 x28: ffff00303f22cd00 [65161.055237] x27: 0000000000000027 x26: 0000000000000027 [65161.061583] x25: 0000aaaafd32b180 x24: 0000000000000002 [65161.067925] x23: ffff00303f22cd00 x22: 0000000000000000 [65161.074264] x21: ffff800172673cc4 x20: ffff00303f22cd00 [65161.080603] x19: ffff00303f22d7f4 x18: 0000000000000000 [65161.086938] x17: 0000000000000000 x16: 0000000000000000 [65161.093266] x15: 0000aaaafd365130 x14: 0000000000000000 [65161.099584] x13: 0000000000000000 x12: 0000000000000000 [65161.105892] x11: 0000000000000000 x10: 0000000000000000 [65161.112194] x9 : ffff800010129e80 x8 : 0000000000000000 [65161.118489] x7 : ffff00303f22cd00 x6 : 0000000000000001 [65161.124776] x5 : 0000000000000000 x4 : ffff8000118f5008 [65161.131058] x3 : 0000000000000000 x2 : 0000000000000002 [65161.137331] x1 : ffff800172673cc4 x0 : 0000000000000000 [65161.143598] Call trace: [65161.147005] set_task_select_cpus+0x8c/0x3d0 [65161.152225] select_task_rq_fair+0x1c8/0x5cc [65161.157439] sched_exec+0x94/0x1bc [65161.161782] bprm_execve.part.0+0x60/0x164 [65161.166813] bprm_execve+0x78/0xc0 [65161.171143] do_execveat_common+0x1c4/0x250 [65161.176244] __arm64_sys_execve+0x48/0x70 [65161.181167] invoke_syscall+0x50/0x130 [65161.185824] el0_svc_common.constprop.0+0x158/0x180 [65161.191601] do_el0_svc+0x34/0xe0 [65161.195816] el0_svc+0x20/0x30 [65161.199773] el0_sync_handler+0xb8/0xc0 [65161.204502] el0_sync+0x1e8/0x200 [65161.208712] Code: d50323bf d65f03c0 f941ac00 f941c400 (f9400400) It's panic on task_group(current)->auto_affinity dereference. In the scenario like: CPU0 CPU1 rmdir cgroup free auto_affinity try to wake up select_task_rq_fair auto_affinity(NULL) dereference panic Because there is no protect when remove task from one cgroup with task wakeup, so we need to check auto_affinity is NULL in task_prefer_cpus. Fixes: 6eb07f9925a9 ("sched: Introduce smart grid scheduling strategy for cfs") Signed-off-by: Yipeng Zou <zouyipeng(a)huawei.com> --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 84af50f4285f..d2efd40fb784 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6833,7 +6833,8 @@ static void smart_grid_usage_dec(void) static inline struct cpumask *task_prefer_cpus(struct task_struct *p) { - if (!smart_grid_used()) + if (!smart_grid_used() || + !task_group(p)->auto_affinity) return p->prefer_cpus; if (task_group(p)->auto_affinity->mode == 0) -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS 1/2] xhci: Fix command ring pointer corruption while aborting a command
by Yuan Can 19 Jun '24

19 Jun '24

From: Pavankumar Kondeti <pkondeti(a)codeaurora.org> stable inclusion from stable-v4.19.213 commit dec944bb7079b37968cf69c8a438f91f15c4cc61 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RB55 CVE: CVE-2021-47434 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit ff0e50d3564f33b7f4b35cadeabd951d66cfc570 upstream. The command ring pointer is located at [6:63] bits of the command ring control register (CRCR). All the control bits like command stop, abort are located at [0:3] bits. While aborting a command, we read the CRCR and set the abort bit and write to the CRCR. The read will always give command ring pointer as all zeros. So we essentially write only the control bits. Since we split the 64 bit write into two 32 bit writes, there is a possibility of xHC command ring stopped before the upper dword (all zeros) is written. If that happens, xHC updates the upper dword of its internal command ring pointer with all zeros. Next time, when the command ring is restarted, we see xHC memory access failures. Fix this issue by only writing to the lower dword of CRCR where all control bits are located. Cc: stable(a)vger.kernel.org Signed-off-by: Pavankumar Kondeti <pkondeti(a)codeaurora.org> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> Link: https://lore.kernel.org/r/20211008092547.3996295-5-mathias.nyman@linux.inte… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yuan Can <yuancan(a)huawei.com> --- drivers/usb/host/xhci-ring.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 98b67605d3cf..22655e0d257a 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -339,16 +339,22 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci, /* Must be called with xhci->lock held, releases and aquires lock back */ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags) { - u64 temp_64; + u32 temp_32; int ret; xhci_dbg(xhci, "Abort command ring\n"); reinit_completion(&xhci->cmd_ring_stop_completion); - temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); - xhci_write_64(xhci, temp_64 | CMD_RING_ABORT, - &xhci->op_regs->cmd_ring); + /* + * The control bits like command stop, abort are located in lower + * dword of the command ring control register. Limit the write + * to the lower dword to avoid corrupting the command ring pointer + * in case if the command ring is stopped by the time upper dword + * is written. + */ + temp_32 = readl(&xhci->op_regs->cmd_ring); + writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring); /* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the * completion of the Command Abort operation. If CRR is not negated in 5 -- 2.17.1

2 2

[PATCH openEuler-1.0-LTS 1/2] xhci: Fix command ring pointer corruption while aborting a command
by Yuan Can 19 Jun '24

19 Jun '24

From: Pavankumar Kondeti <pkondeti(a)codeaurora.org> stable inclusion from stable-v4.19.213 commit dec944bb7079b37968cf69c8a438f91f15c4cc61 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9RB55 CVE: CVE-2021-47434 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit ff0e50d3564f33b7f4b35cadeabd951d66cfc570 upstream. The command ring pointer is located at [6:63] bits of the command ring control register (CRCR). All the control bits like command stop, abort are located at [0:3] bits. While aborting a command, we read the CRCR and set the abort bit and write to the CRCR. The read will always give command ring pointer as all zeros. So we essentially write only the control bits. Since we split the 64 bit write into two 32 bit writes, there is a possibility of xHC command ring stopped before the upper dword (all zeros) is written. If that happens, xHC updates the upper dword of its internal command ring pointer with all zeros. Next time, when the command ring is restarted, we see xHC memory access failures. Fix this issue by only writing to the lower dword of CRCR where all control bits are located. Cc: stable(a)vger.kernel.org Signed-off-by: Pavankumar Kondeti <pkondeti(a)codeaurora.org> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> Link: https://lore.kernel.org/r/20211008092547.3996295-5-mathias.nyman@linux.inte… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yuan Can <yuancan(a)huawei.com> --- drivers/usb/host/xhci-ring.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 98b67605d3cf..22655e0d257a 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -339,16 +339,22 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci, /* Must be called with xhci->lock held, releases and aquires lock back */ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags) { - u64 temp_64; + u32 temp_32; int ret; xhci_dbg(xhci, "Abort command ring\n"); reinit_completion(&xhci->cmd_ring_stop_completion); - temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); - xhci_write_64(xhci, temp_64 | CMD_RING_ABORT, - &xhci->op_regs->cmd_ring); + /* + * The control bits like command stop, abort are located in lower + * dword of the command ring control register. Limit the write + * to the lower dword to avoid corrupting the command ring pointer + * in case if the command ring is stopped by the time upper dword + * is written. + */ + temp_32 = readl(&xhci->op_regs->cmd_ring); + writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring); /* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the * completion of the Command Abort operation. If CRR is not negated in 5 -- 2.17.1

2 2

[PATCH openEuler-1.0-LTS] coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
by Chen Zhongjin 19 Jun '24

19 Jun '24

From: Sai Prakash Ranjan <saiprakash.ranjan(a)codeaurora.org> stable inclusion from stable-v4.19.198 commit 04bd77ef4f4d9fc6102023b85f4590fc2130aac5 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4FH CVE: CVE-2021-47346 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 5fae8a946ac2df879caf3f79a193d4766d00239b upstream. commit 6f755e85c332 ("coresight: Add helper for inserting synchronization packets") removed trailing '\0' from barrier_pkt array and updated the call sites like etb_update_buffer() to have proper checks for barrier_pkt size before read but missed updating tmc_update_etf_buffer() which still reads barrier_pkt past the array size resulting in KASAN out-of-bounds bug. Fix this by adding a check for barrier_pkt size before accessing like it is done in etb_update_buffer(). BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698 Read of size 4 at addr ffffffd05b7d1030 by task perf/2629 Call trace: dump_backtrace+0x0/0x27c show_stack+0x20/0x2c dump_stack+0x11c/0x188 print_address_description+0x3c/0x4a4 __kasan_report+0x140/0x164 kasan_report+0x10/0x18 __asan_report_load4_noabort+0x1c/0x24 tmc_update_etf_buffer+0x4b8/0x698 etm_event_stop+0x248/0x2d8 etm_event_del+0x20/0x2c event_sched_out+0x214/0x6f0 group_sched_out+0xd0/0x270 ctx_sched_out+0x2ec/0x518 __perf_event_task_sched_out+0x4fc/0xe6c __schedule+0x1094/0x16a0 preempt_schedule_irq+0x88/0x170 arm64_preempt_schedule_irq+0xf0/0x18c el1_irq+0xe8/0x180 perf_event_exec+0x4d8/0x56c setup_new_exec+0x204/0x400 load_elf_binary+0x72c/0x18c0 search_binary_handler+0x13c/0x420 load_script+0x500/0x6c4 search_binary_handler+0x13c/0x420 exec_binprm+0x118/0x654 __do_execve_file+0x77c/0xba4 __arm64_compat_sys_execve+0x98/0xac el0_svc_common+0x1f8/0x5e0 el0_svc_compat_handler+0x84/0xb0 el0_svc_compat+0x10/0x50 The buggy address belongs to the variable: barrier_pkt+0x10/0x40 Memory state around the buggy address: ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00 ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03 ^ ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa ================================================================== Link: https://lore.kernel.org/r/20210505093430.18445-1-saiprakash.ranjan@codeauro… Fixes: 0c3fc4d5fa26 ("coresight: Add barrier packet for synchronisation") Cc: stable(a)vger.kernel.org Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan(a)codeaurora.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose(a)arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier(a)linaro.org> Link: https://lore.kernel.org/r/20210614175901.532683-6-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- drivers/hwtracing/coresight/coresight-tmc-etf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c index e31061308e19..988cbb5f3e0b 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c @@ -472,7 +472,7 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev, buf_ptr = buf->data_pages[cur] + offset; *buf_ptr = readl_relaxed(drvdata->base + TMC_RRD); - if (lost && *barrier) { + if (lost && i < CORESIGHT_BARRIER_PKT_SIZE) { *buf_ptr = *barrier; barrier++; } -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] kprobes: Fix possible use-after-free issue on kprobe registration
by Chen Zhongjin 19 Jun '24

19 Jun '24

stable inclusion from stable-v4.19.313 commit b5808d40093403334d939e2c3c417144d12a6f33 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9QRI5 CVE: CVE-2024-35955 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8 upstream. When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE. Link: https://lore.kernel.org/all/20240410015802.265220-1-zhengyejian1@huawei.com/ Fixes: 28f6c37a2910 ("kprobes: Forbid probing on trampoline and BPF code areas") Cc: stable(a)vger.kernel.org Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat(a)kernel.org> [Fix conflict due to lack dependency commit 223a76b268c9 ("kprobes: Fix coding style issues")] Signed-off-by: Zheng Yejian <zhengyejian1(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: kernel/kprobes.c [This conflict because dependency commit 1efda38d6f9b ("kprobes: Prohibit probes in gate area") not merged] Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- kernel/kprobes.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index f4871c2b69b6..81ea5a3bd05f 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1564,9 +1564,17 @@ static int check_kprobe_address_safe(struct kprobe *p, jump_label_lock(); preempt_disable(); - /* Ensure it is not in reserved area nor out of text */ - if (!(core_kernel_text((unsigned long) p->addr) || - is_module_text_address((unsigned long) p->addr)) || + /* Ensure the address is in a text area, and find a module if exists. */ + *probed_mod = NULL; + if (!core_kernel_text((unsigned long) p->addr)) { + *probed_mod = __module_text_address((unsigned long) p->addr); + if (!(*probed_mod)) { + ret = -EINVAL; + goto out; + } + } + /* Ensure it is not in reserved area. */ + if (in_gate_area_no_mm((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || find_bug((unsigned long)p->addr)) { @@ -1574,8 +1582,7 @@ static int check_kprobe_address_safe(struct kprobe *p, goto out; } - /* Check if are we probing a module */ - *probed_mod = __module_text_address((unsigned long) p->addr); + /* Get module refcount and reject __init functions for loaded modules. */ if (*probed_mod) { /* * We must hold a refcount of the probed module while updating -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS] can: sja1000: fix use after free in ems_pcmcia_add_card()
by Chen Zhongjin 19 Jun '24

19 Jun '24

From: Dan Carpenter <dan.carpenter(a)oracle.com> stable inclusion from stable-v4.19.221 commit ccf070183e4655824936c0f96c4a2bcca93419aa category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9S254 CVE: CVE-2021-47521 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45 upstream. If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up. Fixes: fd734c6f25ae ("can/sja1000: add driver for EMS PCMCIA card") Link: https://lore.kernel.org/all/20211124145041.GB13656@kili Cc: stable(a)vger.kernel.org Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> Acked-by: Oliver Hartkopp <socketcan(a)hartkopp.net> Tested-by: Oliver Hartkopp <socketcan(a)hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Chen Zhongjin <chenzhongjin(a)huawei.com> --- drivers/net/can/sja1000/ems_pcmcia.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/can/sja1000/ems_pcmcia.c b/drivers/net/can/sja1000/ems_pcmcia.c index 381de998d2f1..fef5c59c0f4c 100644 --- a/drivers/net/can/sja1000/ems_pcmcia.c +++ b/drivers/net/can/sja1000/ems_pcmcia.c @@ -243,7 +243,12 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base) free_sja1000dev(dev); } - err = request_irq(dev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, + if (!card->channels) { + err = -ENODEV; + goto failure_cleanup; + } + + err = request_irq(pdev->irq, &ems_pcmcia_interrupt, IRQF_SHARED, DRV_NAME, card); if (!err) return 0; -- 2.25.1

2 3

[PATCH openEuler-1.0-LTS 0/2] spi: Fix deadlock when adding SPI controllers on SPI buses
by Zeng Heng 19 Jun '24

19 Jun '24

Mark Brown (1): spi: Fix deadlock when adding SPI controllers on SPI buses Zeng Heng (1): spi: fix kabi breakage in struct spi_controller drivers/spi/spi.c | 43 ++++++++++++++++++++++++++---------------- include/linux/device.h | 8 ++++++++ 2 files changed, 35 insertions(+), 16 deletions(-) -- 2.25.1

2 3

[PATCH OLK-6.6] memcg: attach memcg async reclaim worker to curcpu
by Lu Jialin 19 Jun '24

19 Jun '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9PXW6 -------------------------------- Attach memcg async relcaim worker to a curcpu, which will make sure memcg async reclaim worker will be scheduled among the cpumask belong to the current's cpuset. Signed-off-by: Lu Jialin <lujialin4(a)huawei.com> --- mm/memcontrol.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index c7958805ee66..d97410e3ec0e 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2926,7 +2926,13 @@ static int try_charge_memcg(struct mem_cgroup *memcg, gfp_t gfp_mask, #ifdef CONFIG_MEMCG_V1_RECLAIM if (is_high_async_reclaim(memcg) && !mem_high) { WRITE_ONCE(memcg->high_async_reclaim, true); - schedule_work(&memcg->high_work); +#ifdef CONFIG_MEMCG_SWAP_QOS + if (static_branch_likely(&memcg_swap_qos_key)) + schedule_work_on(smp_processor_id(), + &memcg->high_work); + else +#endif + schedule_work(&memcg->high_work); break; } #endif -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1] drm/amd/display: Fix division by zero in setup_dsc_config
by Jinjiang Tu 19 Jun '24

19 Jun '24

From: Jose Fernandez <josef(a)netflix.com> stable inclusion from stable-v5.15.160 commit a32c8f951c8a456c1c251e1dcdf21787f8066445 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA3UT7 CVE: CVE-2024-36969 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 130afc8a886183a94cf6eab7d24f300014ff87ba upstream. When slice_height is 0, the division by slice_height in the calculation of the number of slices will cause a division by zero driver crash. This leaves the kernel in a state that requires a reboot. This patch adds a check to avoid the division by zero. The stack trace below is for the 6.8.4 Kernel. I reproduced the issue on a Z16 Gen 2 Lenovo Thinkpad with a Apple Studio Display monitor connected via Thunderbolt. The amdgpu driver crashed with this exception when I rebooted the system with the monitor connected. kernel: ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) kernel: ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? exc_divide_error (arch/x86/kernel/traps.c:194 (discriminator 2)) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? asm_exc_divide_error (./arch/x86/include/asm/idtentry.h:548) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: dc_dsc_compute_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1109) amdgpu After applying this patch, the driver no longer crashes when the monitor is connected and the system is rebooted. I believe this is the same issue reported for 3113. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Signed-off-by: Jose Fernandez <josef(a)netflix.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3113 Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: "Limonciello, Mario" <mario.limonciello(a)amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c [Context conflicts.] Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index 4c844cfaa956..cbbcc34ac58b 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -735,7 +735,12 @@ static bool setup_dsc_config( if (!is_dsc_possible) goto done; - dsc_cfg->num_slices_v = pic_height/slice_height; + if (slice_height > 0) { + dsc_cfg->num_slices_v = pic_height / slice_height; + } else { + is_dsc_possible = false; + goto done; + } // Final decission: can we do DSC or not? if (is_dsc_possible) { -- 2.25.1

2 1

[PATCH OLK-5.10] drm/amd/display: Fix division by zero in setup_dsc_config
by Jinjiang Tu 19 Jun '24

19 Jun '24

From: Jose Fernandez <josef(a)netflix.com> stable inclusion from stable-v5.15.160 commit a32c8f951c8a456c1c251e1dcdf21787f8066445 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA3UT7 CVE: CVE-2024-36969 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 130afc8a886183a94cf6eab7d24f300014ff87ba upstream. When slice_height is 0, the division by slice_height in the calculation of the number of slices will cause a division by zero driver crash. This leaves the kernel in a state that requires a reboot. This patch adds a check to avoid the division by zero. The stack trace below is for the 6.8.4 Kernel. I reproduced the issue on a Z16 Gen 2 Lenovo Thinkpad with a Apple Studio Display monitor connected via Thunderbolt. The amdgpu driver crashed with this exception when I rebooted the system with the monitor connected. kernel: ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) kernel: ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? exc_divide_error (arch/x86/kernel/traps.c:194 (discriminator 2)) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? asm_exc_divide_error (./arch/x86/include/asm/idtentry.h:548) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: dc_dsc_compute_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1109) amdgpu After applying this patch, the driver no longer crashes when the monitor is connected and the system is rebooted. I believe this is the same issue reported for 3113. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Signed-off-by: Jose Fernandez <josef(a)netflix.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3113 Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: "Limonciello, Mario" <mario.limonciello(a)amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c [Context conflicts.] Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> --- drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index 4c844cfaa956..cbbcc34ac58b 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -735,7 +735,12 @@ static bool setup_dsc_config( if (!is_dsc_possible) goto done; - dsc_cfg->num_slices_v = pic_height/slice_height; + if (slice_height > 0) { + dsc_cfg->num_slices_v = pic_height / slice_height; + } else { + is_dsc_possible = false; + goto done; + } // Final decission: can we do DSC or not? if (is_dsc_possible) { -- 2.25.1

2 1

[PATCH OLK-5.10] memcg: attach memcg async reclaim worker to curcpu
by Lu Jialin 19 Jun '24

19 Jun '24

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9PXW6 -------------------------------- Attach memcg async relcaim worker to a curcpu, which will make sure memcg async reclaim worker will be scheduled among the cpumask belong to the current's cpuset. Signed-off-by: Lu Jialin <lujialin4(a)huawei.com> --- mm/memcontrol.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e6b355332ffb..3c979aa70ff6 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2844,7 +2844,13 @@ static int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask, #ifdef CONFIG_MEMCG_V1_THRESHOLD_QOS if (is_high_async_reclaim(memcg) && !mem_high) { WRITE_ONCE(memcg->high_async_reclaim, true); - schedule_work(&memcg->high_work); +#ifdef CONFIG_MEMCG_SWAP_QOS + if (static_branch_likely(&memcg_swap_qos_key)) + schedule_work_on(smp_processor_id(), + &memcg->high_work); + else +#endif + schedule_work(&memcg->high_work); break; } #endif -- 2.34.1

2 1