CVEvulnerability
CVE-2026-64344
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-25
- Last modified
- 2026-09-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved:
USB: idmouse: fix use-after-free on disconnect race
mutex_unlock() may access the mutex structure after releasing the lock
and therefore cannot be used to manage lifetime of objects directly
(unlike spinlocks and refcounts). [1][2]
Use a kref to release the driver data to avoid use-after-free in
mutex_unlock() when release() races with disconnect().
[1] a51749ab34d9 ("locking/mutex: Document that mutex_unlock() is
non-atomic")
[2] 2b9d9e0a9ba0 ("locking/mutex: Clarify that mutex_unlock(), and most
other sleeping locks, can still use the lock object
after it's unlocked")
Affected configurations
• linux linux kernel (>= 2.6.24.1 < 5.10.261)
• linux linux kernel (>= 5.11 < 5.15.212)
• linux linux kernel (>= 5.16 < 6.1.178)
• linux linux kernel (>= 6.2 < 6.6.145)
• linux linux kernel (>= 6.7 < 6.12.96)
• linux linux kernel (>= 6.13 < 6.18.39)
• linux linux kernel (>= 6.19 < 7.1.4)
• linux linux kernel 2.6.24
• linux linux kernel 7.2
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872 Patch
- https://git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cb Patch
- https://git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09 Patch
- https://git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41 Patch
- https://git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4 Patch
- https://git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515 Patch
- https://git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4 Patch
- https://git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4 Patch