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CVE-2026-64344

USB: idmouse: fix use-after-free on disconnect race PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 54d2bc068fd21bcb096660938bce7c7265613a24 before 31e75fed8f90cfea9f8285e7ed135b0e452bf872; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before 8d53b14ad4ccbff6d306b3a39c812303f4a87d41; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before f62622e947f82a3854a8502d09492ffbdeb252b4; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before 60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before 54c2b7356b4aeea467f9fb13b85e9e036bc428cb; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before e88cff5fbaa629f3cab45c8b46f395d62c2eb515; affected 54d2bc068fd21bcb096660938bce7c7265613a24 before ff002c153f9722caece3983cc23dc4d9d4652cb4
Linux / Linuxaffected 2.6.24; unaffected 0 before 2.6.24; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References