August 2024 - Kernel - mailweb.openeuler.org

[PATCH openEuler-22.03-LTS-SP1] scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory
by Guo Mengqi 22 Aug '24

22 Aug '24

From: Breno Leitao <leitao(a)debian.org> stable inclusion from stable-v5.10.221 commit 0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IACZL6 CVE: CVE-2024-40901 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 4254dfeda82f20844299dca6c38cbffcfd499f41 upstream. There is a potential out-of-bounds access when using test_bit() on a single word. The test_bit() and set_bit() functions operate on long values, and when testing or setting a single word, they can exceed the word boundary. KASAN detects this issue and produces a dump: BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965 For full log, please look at [1]. Make the allocation at least the size of sizeof(unsigned long) so that set_bit() and test_bit() have sufficient room for read/write operations without overwriting unallocated memory. [1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/ Fixes: c696f7b83ede ("scsi: mpt3sas: Implement device_remove_in_progress check in IOCTL path") Cc: stable(a)vger.kernel.org Suggested-by: Keith Busch <kbusch(a)kernel.org> Signed-off-by: Breno Leitao <leitao(a)debian.org> Link: https://lore.kernel.org/r/20240605085530.499432-1-leitao@debian.org Reviewed-by: Keith Busch <kbusch(a)kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- drivers/scsi/mpt3sas/mpt3sas_base.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 55200f5db150..04c0b2fb65d5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -7440,6 +7440,12 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8); if (ioc->facts.MaxDevHandle % 8) ioc->pd_handles_sz++; + /* + * pd_handles_sz should have, at least, the minimal room for + * set_bit()/test_bit(), otherwise out-of-memory touch may occur. + */ + ioc->pd_handles_sz = ALIGN(ioc->pd_handles_sz, sizeof(unsigned long)); + ioc->pd_handles = kzalloc(ioc->pd_handles_sz, GFP_KERNEL); if (!ioc->pd_handles) { @@ -7457,6 +7463,13 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc) ioc->pend_os_device_add_sz = (ioc->facts.MaxDevHandle / 8); if (ioc->facts.MaxDevHandle % 8) ioc->pend_os_device_add_sz++; + + /* + * pend_os_device_add_sz should have, at least, the minimal room for + * set_bit()/test_bit(), otherwise out-of-memory may occur. + */ + ioc->pend_os_device_add_sz = ALIGN(ioc->pend_os_device_add_sz, + sizeof(unsigned long)); ioc->pend_os_device_add = kzalloc(ioc->pend_os_device_add_sz, GFP_KERNEL); if (!ioc->pend_os_device_add) { @@ -7747,6 +7760,12 @@ _base_check_ioc_facts_changes(struct MPT3SAS_ADAPTER *ioc) if (ioc->facts.MaxDevHandle % 8) pd_handles_sz++; + /* + * pd_handles should have, at least, the minimal room for + * set_bit()/test_bit(), otherwise out-of-memory touch may + * occur. + */ + pd_handles_sz = ALIGN(pd_handles_sz, sizeof(unsigned long)); pd_handles = krealloc(ioc->pd_handles, pd_handles_sz, GFP_KERNEL); if (!pd_handles) { -- 2.17.1

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[PATCH OLK-5.10] phonet: fix rtm_phonet_notify() skb allocation
by Guo Mengqi 22 Aug '24

22 Aug '24

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

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[PATCH OLK-5.10] m68k: Fix spinlock race in kernel thread creation
by Guo Mengqi 22 Aug '24

22 Aug '24

From: Michael Schmitz <schmitzmic(a)gmail.com> stable inclusion from stable-v5.10.219 commit 4eeffecc8e3cce25bb559502c2fd94a948bcde82 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SFZ CVE: CVE-2024-38613 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit da89ce46f02470ef08f0f580755d14d547da59ed ] Context switching does take care to retain the correct lock owner across the switch from 'prev' to 'next' tasks. This does rely on interrupts remaining disabled for the entire duration of the switch. This condition is guaranteed for normal process creation and context switching between already running processes, because both 'prev' and 'next' already have interrupts disabled in their saved copies of the status register. The situation is different for newly created kernel threads. The status register is set to PS_S in copy_thread(), which does leave the IPL at 0. Upon restoring the 'next' thread's status register in switch_to() aka resume(), interrupts then become enabled prematurely. resume() then returns via ret_from_kernel_thread() and schedule_tail() where run queue lock is released (see finish_task_switch() and finish_lock_switch()). A timer interrupt calling scheduler_tick() before the lock is released in finish_task_switch() will find the lock already taken, with the current task as lock owner. This causes a spinlock recursion warning as reported by Guenter Roeck. As far as I can ascertain, this race has been opened in commit 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") but I haven't done a detailed study of kernel history so it may well predate that commit. Interrupts cannot be disabled in the saved status register copy for kernel threads (init will complain about interrupts disabled when finally starting user space). Disable interrupts temporarily when switching the tasks' register sets in resume(). Note that a simple oriw 0x700,%sr after restoring sr is not enough here - this leaves enough of a race for the 'spinlock recursion' warning to still be observed. Tested on ARAnyM and qemu (Quadra 800 emulation). Fixes: 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") Reported-by: Guenter Roeck <linux(a)roeck-us.net> Closes: https://lore.kernel.org/all/07811b26-677c-4d05-aeb4-996cd880b789@roeck-us.n… Signed-off-by: Michael Schmitz <schmitzmic(a)gmail.com> Tested-by: Guenter Roeck <linux(a)roeck-us.net> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/20240411033631.16335-1-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- arch/m68k/kernel/entry.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 546bab6bfc27..d0ca4df43528 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -432,7 +432,9 @@ resume: movec %a0,%dfc /* restore status register */ - movew %a1@(TASK_THREAD+THREAD_SR),%sr + movew %a1@(TASK_THREAD+THREAD_SR),%d0 + oriw #0x0700,%d0 + movew %d0,%sr rts -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] m68k: Fix spinlock race in kernel thread creation
by Guo Mengqi 22 Aug '24

22 Aug '24

From: Michael Schmitz <schmitzmic(a)gmail.com> stable inclusion from stable-v5.10.219 commit 4eeffecc8e3cce25bb559502c2fd94a948bcde82 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA6SFZ CVE: CVE-2024-38613 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit da89ce46f02470ef08f0f580755d14d547da59ed ] Context switching does take care to retain the correct lock owner across the switch from 'prev' to 'next' tasks. This does rely on interrupts remaining disabled for the entire duration of the switch. This condition is guaranteed for normal process creation and context switching between already running processes, because both 'prev' and 'next' already have interrupts disabled in their saved copies of the status register. The situation is different for newly created kernel threads. The status register is set to PS_S in copy_thread(), which does leave the IPL at 0. Upon restoring the 'next' thread's status register in switch_to() aka resume(), interrupts then become enabled prematurely. resume() then returns via ret_from_kernel_thread() and schedule_tail() where run queue lock is released (see finish_task_switch() and finish_lock_switch()). A timer interrupt calling scheduler_tick() before the lock is released in finish_task_switch() will find the lock already taken, with the current task as lock owner. This causes a spinlock recursion warning as reported by Guenter Roeck. As far as I can ascertain, this race has been opened in commit 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") but I haven't done a detailed study of kernel history so it may well predate that commit. Interrupts cannot be disabled in the saved status register copy for kernel threads (init will complain about interrupts disabled when finally starting user space). Disable interrupts temporarily when switching the tasks' register sets in resume(). Note that a simple oriw 0x700,%sr after restoring sr is not enough here - this leaves enough of a race for the 'spinlock recursion' warning to still be observed. Tested on ARAnyM and qemu (Quadra 800 emulation). Fixes: 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") Reported-by: Guenter Roeck <linux(a)roeck-us.net> Closes: https://lore.kernel.org/all/07811b26-677c-4d05-aeb4-996cd880b789@roeck-us.n… Signed-off-by: Michael Schmitz <schmitzmic(a)gmail.com> Tested-by: Guenter Roeck <linux(a)roeck-us.net> Reviewed-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Link: https://lore.kernel.org/r/20240411033631.16335-1-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- arch/m68k/kernel/entry.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 9dd76fbb7c6b..192bdb278974 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -429,7 +429,9 @@ resume: movec %a0,%dfc /* restore status register */ - movew %a1@(TASK_THREAD+THREAD_SR),%sr + movew %a1@(TASK_THREAD+THREAD_SR),%d0 + oriw #0x0700,%d0 + movew %d0,%sr rts -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] phonet: fix rtm_phonet_notify() skb allocation
by Guo Mengqi 22 Aug '24

22 Aug '24

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

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[PATCH OLK-5.10 0/3] CVE-2024-36915
by Guo Mengqi 22 Aug '24

22 Aug '24

CVE-2024-36915 Eric Dumazet (3): mISDN: fix MISDN_TIME_STAMP handling net: add copy_safe_from_sockptr() helper nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies drivers/isdn/mISDN/socket.c | 10 +++++----- include/linux/sockptr.h | 25 +++++++++++++++++++++++++ net/nfc/llcp_sock.c | 12 ++++++------ 3 files changed, 36 insertions(+), 11 deletions(-) -- 2.17.1

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[PATCH OLK-5.10] netfilter: tproxy: bail out if IP has been disabled on the device
by Guo Mengqi 22 Aug '24

22 Aug '24

From: Florian Westphal <fw(a)strlen.de> stable inclusion from stable-v5.10.219 commit 07eeedafc59c45fe5de43958128542be3784764c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D8P CVE: CVE-2024-36270 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 21a673bddc8fd4873c370caf9ae70ffc6d47e8d3 ] syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168 __in_dev_get_rcu() can return NULL, so check for this. Reported-and-tested-by: syzbot+b94a6818504ea90d7661(a)syzkaller.appspotmail.com Fixes: cc6eb4338569 ("tproxy: use the interface primary IP address as a default value for --on-ip") Signed-off-by: Florian Westphal <fw(a)strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- net/ipv4/netfilter/nf_tproxy_ipv4.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/netfilter/nf_tproxy_ipv4.c b/net/ipv4/netfilter/nf_tproxy_ipv4.c index 61cb2341f50f..7c1a0cd9f435 100644 --- a/net/ipv4/netfilter/nf_tproxy_ipv4.c +++ b/net/ipv4/netfilter/nf_tproxy_ipv4.c @@ -58,6 +58,8 @@ __be32 nf_tproxy_laddr4(struct sk_buff *skb, __be32 user_laddr, __be32 daddr) laddr = 0; indev = __in_dev_get_rcu(skb->dev); + if (!indev) + return daddr; in_dev_for_each_ifa_rcu(ifa, indev) { if (ifa->ifa_flags & IFA_F_SECONDARY) -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1] netfilter: tproxy: bail out if IP has been disabled on the device
by Guo Mengqi 22 Aug '24

22 Aug '24

From: Florian Westphal <fw(a)strlen.de> stable inclusion from stable-v5.10.219 commit 07eeedafc59c45fe5de43958128542be3784764c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IA7D8P CVE: CVE-2024-36270 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 21a673bddc8fd4873c370caf9ae70ffc6d47e8d3 ] syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168 __in_dev_get_rcu() can return NULL, so check for this. Reported-and-tested-by: syzbot+b94a6818504ea90d7661(a)syzkaller.appspotmail.com Fixes: cc6eb4338569 ("tproxy: use the interface primary IP address as a default value for --on-ip") Signed-off-by: Florian Westphal <fw(a)strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Wang Wensheng <wangwensheng4(a)huawei.com> --- net/ipv4/netfilter/nf_tproxy_ipv4.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/netfilter/nf_tproxy_ipv4.c b/net/ipv4/netfilter/nf_tproxy_ipv4.c index b2bae0b0e42a..20de70b75ad3 100644 --- a/net/ipv4/netfilter/nf_tproxy_ipv4.c +++ b/net/ipv4/netfilter/nf_tproxy_ipv4.c @@ -58,6 +58,8 @@ __be32 nf_tproxy_laddr4(struct sk_buff *skb, __be32 user_laddr, __be32 daddr) laddr = 0; indev = __in_dev_get_rcu(skb->dev); + if (!indev) + return daddr; in_dev_for_each_ifa_rcu(ifa, indev) { if (ifa->ifa_flags & IFA_F_SECONDARY) -- 2.17.1

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[PATCH openEuler-22.03-LTS-SP1 0/3] CVE-2024-36915
by Guo Mengqi 22 Aug '24

22 Aug '24

CVE-2024-36915 Eric Dumazet (3): mISDN: fix MISDN_TIME_STAMP handling net: add copy_safe_from_sockptr() helper nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies drivers/isdn/mISDN/socket.c | 10 +++++----- include/linux/sockptr.h | 25 +++++++++++++++++++++++++ net/nfc/llcp_sock.c | 12 ++++++------ 3 files changed, 36 insertions(+), 11 deletions(-) -- 2.17.1

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[PATCH openEuler-1.0-LTS] filelock: Correct the filelock owner in fcntl_setlk/fcntl_setlk64
by Long Li 22 Aug '24

22 Aug '24

maillist inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IALNC4 CVE: NA Reference: https://lore.kernel.org/stable/20240816050627.2122228-1-leo.lilong@huawei.c… ---------------------------------------- The locks_remove_posix() function in fcntl_setlk/fcntl_setlk64 is designed to reliably remove locks when an fcntl/close race is detected. However, it was passing in the wrong filelock owner, it looks like a mistake and resulting in a failure to remove locks. More critically, if the lock removal fails, it could lead to a uaf issue while traversing the locks. This problem occurs only in the 4.19/5.4 stable version. Fixes: a561145f3ae9 ("filelock: Fix fcntl/close race recovery compat path") Fixes: d30ff3304083 ("filelock: Remove locks reliably when fcntl/close race is detected") Cc: stable(a)vger.kernel.org Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/locks.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index ae4b6d487985..ba9b7b7fd90a 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -2314,7 +2314,7 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd, f = fcheck(fd); spin_unlock(&current->files->file_lock); if (f != filp) { - locks_remove_posix(filp, &current->files); + locks_remove_posix(filp, current->files); error = -EBADF; } } @@ -2444,7 +2444,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd, f = fcheck(fd); spin_unlock(&current->files->file_lock); if (f != filp) { - locks_remove_posix(filp, &current->files); + locks_remove_posix(filp, current->files); error = -EBADF; } } -- 2.39.2

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