cbcvebase.
CVE-2024-40922
published 2024-07-12

CVE-2024-40922: In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: don't lock while !TASK_RUNNING There is a report of io_rsrc_ref_quiesce()…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.6th percentile
In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: don't lock while !TASK_RUNNING There is a report of io_rsrc_ref_quiesce() locking a mutex while not TASK_RUNNING, which is due to forgetting restoring the state back after io_run_task_work_sig() and attempts to break out of the waiting loop. do not call blocking ops when !TASK_RUNNING; state=1 set at [] prepare_to_wait+0xa4/0x380 kernel/sched/wait.c:237 WARNING: CPU: 2 PID: 397056 at kernel/sched/core.c:10099 __might_sleep+0x114/0x160 kernel/sched/core.c:10099 RIP: 0010:__might_sleep+0x114/0x160 kernel/sched/core.c:10099 Call Trace: __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0xb4/0x940 kernel/locking/mutex.c:752 io_rsrc_ref_quiesce+0x590/0x940 io_uring/rsrc.c:253 io_sqe_buffers_unregister+0xa2/0x340 io_uring/rsrc.c:799 __io_uring_register io_uring/register.c:424 [inline] __do_sys_io_uring_register+0x5b9/0x2400 io_uring/register.c:613 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd8/0x270 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6f/0x77

Affected

11 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.9.7-1 (forky)linux 6.9.7-1 (forky)
linuxlinux
linuxlinux>= 4ea15b56f0810f0d8795d475db1bb74b3a7c1b2f < 0c9df3df0c888d9ec8d11a68474a4aa04d371cff0c9df3df0c888d9ec8d11a68474a4aa04d371cff
linuxlinux>= 4ea15b56f0810f0d8795d475db1bb74b3a7c1b2f < 4429c6c77e176a4c5aa7a3bbd1632f9fc05825184429c6c77e176a4c5aa7a3bbd1632f9fc0582518
linuxlinux>= 4ea15b56f0810f0d8795d475db1bb74b3a7c1b2f < 54559642b96116b45e4b5ca7fd9f7835b856127254559642b96116b45e4b5ca7fd9f7835b8561272
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 6.4 < 6.6.356.6.35
linuxlinux_kernel>= 6.7 < 6.9.66.9.6

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_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.