CVE-2026-64344
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < 31e75fed8f90cfea9f8285e7ed135b0e452bf872 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < 8d53b14ad4ccbff6d306b3a39c812303f4a87d41 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < f62622e947f82a3854a8502d09492ffbdeb252b4 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < 60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < 54c2b7356b4aeea467f9fb13b85e9e036bc428cb | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < e88cff5fbaa629f3cab45c8b46f395d62c2eb515 | affected |
| Linux | Linux | 54d2bc068fd21bcb096660938bce7c7265613a24 < ff002c153f9722caece3983cc23dc4d9d4652cb4 | affected |
| Linux | Linux | 2.6.24 | affected |
| Linux | Linux | 0 < 2.6.24 | unaffected |
| Linux | Linux | 5.10.261 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.212 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.96 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.39 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.4 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc3 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872
- https://git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41
- https://git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4
- https://git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09
- https://git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4
- https://git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cb
- https://git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515
- https://git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4
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