CVE-2026-64340None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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")
Linux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 11d069f85851997b4ea0adf242ed9672dc749b8fLinux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < b4222c05066b252b451f9c8c4730b5b60824ea66Linux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 6462de75d2e370c7e74dcfb7b4ae79eb5a6a55eeLinux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 0b57e5ddbd89df3bc367463de3d2ca66f99a1a5eLinux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < ab2bfd7bec4f134b377ec42f513e90c35db94160Linux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 766738ecf2b819e54d38763c8d1c8ae6cff14b39Linux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 9ba62966461a8e3cc593b62c56ec62eb2d80436dLinux >= 18bcbcfe9ca2308ebffb40068b51803da9315d97 < 62fc8eb1b1481051f7bab4aa93d79809053dd09fLinux 2.6.25Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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