Improper control of a resource through its lifetime in Linux kernel - CVE-2026-43229

 

Improper control of a resource through its lifetime in Linux kernel - CVE-2026-43229

Published: May 7, 2026


Vulnerability identifier: #VU130510
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43229
CWE-ID: CWE-664
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper shutdown sequence in wave5 driver device removal handling when unregistering and removing the device during polling mode. A local user can trigger encoding operations and device removal to cause a denial of service.

The issue occurs because an hrtimer can continue queueing worker activity that reads hardware registers after the hardware has been powered down, leading to a bus error and kernel panic.


Remediation

Install security update from vendor's repository.

External links