cbcvebase.
CVE-2023-53233
published 2025-09-15

CVE-2023-53233: In the Linux kernel, the following vulnerability has been resolved: net/smc: fix deadlock triggered by cancel_delayed_work_syn() The following LOCKDEP was…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.11%
1.5th percentile
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix deadlock triggered by cancel_delayed_work_syn() The following LOCKDEP was detected: Workqueue: events smc_lgr_free_work [smc] WARNING: possible circular locking dependency detected 6.1.0-20221027.rc2.git8.56bc5b569087.300.fc36.s390x+debug #1 Not tainted kworker/3:0/176251 is trying to acquire lock: 00000000f1467148 ((wq_completion)smc_tx_wq-00000000#2){+.+.}-{0:0}, at: __flush_workqueue+0x7a/0x4f0 but task is already holding lock: 0000037fffe97dc8 ((work_completion)(&(&lgr->free_work)->work)){+.+.}-{0:0}, at: process_one_work+0x232/0x730 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 ((work_completion)(&(&lgr->free_work)->work)){+.+.}-{0:0}: __lock_acquire+0x58e/0xbd8 lock_acquire.part.0+0xe2/0x248 lock_acquire+0xac/0x1c8 __flush_work+0x76/0xf0 __cancel_work_timer+0x170/0x220 __smc_lgr_terminate.part.0+0x34/0x1c0 [smc] smc_connect_rdma+0x15e/0x418 [smc] __smc_connect+0x234/0x480 [smc] smc_connect+0x1d6/0x230 [smc] __sys_connect+0x90/0xc0 __do_sys_socketcall+0x186/0x370 __do_syscall+0x1da/0x208 system_call+0x82/0xb0 -> #3 (smc_client_lgr_pending){+.+.}-{3:3}: __lock_acquire+0x58e/0xbd8 lock_acquire.part.0+0xe2/0x248 lock_acquire+0xac/0x1c8 __mutex_lock+0x96/0x8e8 mutex_lock_nested+0x32/0x40 smc_connect_rdma+0xa4/0x418 [smc] __smc_connect+0x234/0x480 [smc] smc_connect+0x1d6/0x230 [smc] __sys_connect+0x90/0xc0 __do_sys_socketcall+0x186/0x370 __do_syscall+0x1da/0x208 system_call+0x82/0xb0 -> #2 (sk_lock-AF_SMC){+.+.}-{0:0}: __lock_acquire+0x58e/0xbd8 lock_acquire.part.0+0xe2/0x248 lock_acquire+0xac/0x1c8 lock_sock_nested+0x46/0xa8 smc_tx_work+0x34/0x50 [smc] process_one_work+0x30c/0x730 worker_thread+0x62/0x420 kthread+0x138/0x150 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 -> #1 ((work_completion)(&(&smc->conn.tx_work)->work)){+.+.}-{0:0}: __lock_acquire+0x58e/0xbd8 lock_acquire.part.0+0xe2/0x248 lock_acquire+0xac/0x1c8 process

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.25-1 (bookworm)linux 6.1.25-1 (bookworm)
linuxlinux——
linuxlinux>= a52bcc919b14c9d78f03b2b4ff604e5ca69c7e6d < 9708efad9ba5095b9bb7916e11a135b3bd66c0719708efad9ba5095b9bb7916e11a135b3bd66c071
linuxlinux>= a52bcc919b14c9d78f03b2b4ff604e5ca69c7e6d < b615238e5bc01e13dc0610febddc1ca99bab1df6b615238e5bc01e13dc0610febddc1ca99bab1df6
linuxlinux>= a52bcc919b14c9d78f03b2b4ff604e5ca69c7e6d < 3517584cf1b35bd02f4a90267ddf9dcf17bd9c873517584cf1b35bd02f4a90267ddf9dcf17bd9c87
linuxlinux>= a52bcc919b14c9d78f03b2b4ff604e5ca69c7e6d < c9ca2257150272df1b8d9ebe5059197ffea6e913c9ca2257150272df1b8d9ebe5059197ffea6e913
linuxlinux>= a52bcc919b14c9d78f03b2b4ff604e5ca69c7e6d < 13085e1b5cab8ad802904d72e6a6dae85ae0cd2013085e1b5cab8ad802904d72e6a6dae85ae0cd20
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.178-15.10.178-1
linuxlinux_kernel>= 0 < 6.1.25-16.1.25-1
linuxlinux_kernel>= 0 < 6.1.25-16.1.25-1
linuxlinux_kernel>= 0 < 6.1.25-16.1.25-1
linuxlinux_kernel>= 5.11 < 5.15.1045.15.104
linuxlinux_kernel>= 5.16 < 6.1.216.1.21
linuxlinux_kernel>= 5.8 < 5.10.1765.10.176
linuxlinux_kernel>= 6.2 < 6.2.86.2.8

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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