CVEvulnerability
CVE-2026-64341
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-07-25
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
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 configurations
• linux linux kernel (>= 2.6.21.1 < 6.12.97)
• linux linux kernel (>= 6.13 < 7.1.4)
• linux linux kernel 2.6.21
• linux linux kernel 7.2
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/30ec3025b771511625375fb3fb959aea3b45fb0d git.kernel.org
- https://git.kernel.org/stable/c/3c0a7b29ebb391d5f50b115e86f842b709195b08 Patch
- https://git.kernel.org/stable/c/4e7d3c98fed73d3be84d3e146d8d9be0309e725b git.kernel.org
- https://git.kernel.org/stable/c/71590982700fdeb39a37a500c877228b0140978e Patch
- https://git.kernel.org/stable/c/c602254ba4c10f60a73cd99d147874f86a3f485c Patch