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")

https://git.kernel.org/stable/c/0b57e5ddbd89df3bc367463de3d2ca66f99a1a5e

https://git.kernel.org/stable/c/11d069f85851997b4ea0adf242ed9672dc749b8f

https://git.kernel.org/stable/c/62fc8eb1b1481051f7bab4aa93d79809053dd09f

https://git.kernel.org/stable/c/6462de75d2e370c7e74dcfb7b4ae79eb5a6a55ee

https://git.kernel.org/stable/c/766738ecf2b819e54d38763c8d1c8ae6cff14b39

https://git.kernel.org/stable/c/9ba62966461a8e3cc593b62c56ec62eb2d80436d

https://git.kernel.org/stable/c/ab2bfd7bec4f134b377ec42f513e90c35db94160

https://git.kernel.org/stable/c/b4222c05066b252b451f9c8c4730b5b60824ea66

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