Description
In the Linux kernel, the following vulnerability has been resolved: USB: legousbtower: 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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 11d069f85851997b4ea0adf242ed9672dc749b8faffected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < b4222c05066b252b451f9c8c4730b5b60824ea66affected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 6462de75d2e370c7e74dcfb7b4ae79eb5a6a55eeaffected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 0b57e5ddbd89df3bc367463de3d2ca66f99a1a5eaffected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < ab2bfd7bec4f134b377ec42f513e90c35db94160affected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 766738ecf2b819e54d38763c8d1c8ae6cff14b39affected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 9ba62966461a8e3cc593b62c56ec62eb2d80436daffected18bcbcfe9ca2308ebffb40068b51803da9315d97 to < 62fc8eb1b1481051f7bab4aa93d79809053dd09faffected
Linux Linux
Default version status: affected
2.6.25affected0 to < 2.6.25unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.96 to ≤ 6.12.*unaffected6.18.39 to ≤ 6.18.*unaffected7.1.4 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/11d069f85851997b4ea0adf242ed9672dc749b8f ↗
- https://git.kernel.org/stable/c/b4222c05066b252b451f9c8c4730b5b60824ea66 ↗
- https://git.kernel.org/stable/c/6462de75d2e370c7e74dcfb7b4ae79eb5a6a55ee ↗
- https://git.kernel.org/stable/c/0b57e5ddbd89df3bc367463de3d2ca66f99a1a5e ↗
- https://git.kernel.org/stable/c/ab2bfd7bec4f134b377ec42f513e90c35db94160 ↗
- https://git.kernel.org/stable/c/766738ecf2b819e54d38763c8d1c8ae6cff14b39 ↗
- https://git.kernel.org/stable/c/9ba62966461a8e3cc593b62c56ec62eb2d80436d ↗
- https://git.kernel.org/stable/c/62fc8eb1b1481051f7bab4aa93d79809053dd09f ↗