CVE-2024-40922

MEDIUM EPSS 11.5%
Published Jul 12, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 12, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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 [<ffffffff815d2494>] 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: <TASK> __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

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
11.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.4  –  <6.6.35
linuxlinux_kernel*≥6.7  –  <6.9.6
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any
linuxlinux_kernel6.10any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0c9df3df0c888d9ec8d11a68474a4aa04d371cff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4429c6c77e176a4c5aa7a3bbd1632f9fc0582518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54559642b96116b45e4b5ca7fd9f7835b8561272
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0c9df3df0c888d9ec8d11a68474a4aa04d371cff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4429c6c77e176a4c5aa7a3bbd1632f9fc0582518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/54559642b96116b45e4b5ca7fd9f7835b8561272
    Patch