CVE-2026-64341

Last refreshed2026-10-23

Status: UPDATED | Advisory ID: CVE-2026-64341

Key Details

CVE	CVE-2026-64341
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-21
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-416 (Use After Free)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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") (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-64341
CVE	https://www.cve.org/CVERecord?id=CVE-2026-64341

Source

Reference

NVD

CVE