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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64340 Detail

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")


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0b57e5ddbd89df3bc367463de3d2ca66f99a1a5e kernel.org
https://git.kernel.org/stable/c/11d069f85851997b4ea0adf242ed9672dc749b8f kernel.org
https://git.kernel.org/stable/c/62fc8eb1b1481051f7bab4aa93d79809053dd09f kernel.org
https://git.kernel.org/stable/c/6462de75d2e370c7e74dcfb7b4ae79eb5a6a55ee kernel.org
https://git.kernel.org/stable/c/766738ecf2b819e54d38763c8d1c8ae6cff14b39 kernel.org
https://git.kernel.org/stable/c/9ba62966461a8e3cc593b62c56ec62eb2d80436d kernel.org
https://git.kernel.org/stable/c/ab2bfd7bec4f134b377ec42f513e90c35db94160 kernel.org
https://git.kernel.org/stable/c/b4222c05066b252b451f9c8c4730b5b60824ea66 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64340
NVD Published Date:
07/25/2026
NVD Last Modified:
07/25/2026
Source:
kernel.org