CVE-2026-64341

Summary

In the Linux kernel, the following vulnerability has been resolved:

USB: iowarrior: 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 Software

VendorProductVersion RangeStatus
LinuxLinux946b960d13c15f050a3b848987aaca79f6a459b7 < 3c0a7b29ebb391d5f50b115e86f842b709195b08affected
LinuxLinux946b960d13c15f050a3b848987aaca79f6a459b7 < 71590982700fdeb39a37a500c877228b0140978eaffected
LinuxLinux946b960d13c15f050a3b848987aaca79f6a459b7 < c602254ba4c10f60a73cd99d147874f86a3f485caffected
LinuxLinux2.6.21affected
LinuxLinux0 < 2.6.21unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc3 <= *unaffected

Weaknesses

References