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

07 Jun '24

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

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

07 Jun '24

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

2 3

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

07 Jun '24

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

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

07 Jun '24

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

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

07 Jun '24

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

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

07 Jun '24

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

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

06 Jun '24

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

2 1

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

06 Jun '24

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

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

06 Jun '24

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

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

06 Jun '24

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

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