Improper resource shutdown or release in Linux kernel - CVE-2026-43301
Published: May 9, 2026
Vulnerability identifier: #VU130879
CSH Severity: Low
CVSS v4.0: 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-2026-43301
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown handling in the wave5 media driver remove path when removing the device after autosuspend has suspended it. A local user can trigger device removal to cause a denial of service.
The issue occurs because the runtime PM usage count can underflow during module unload when the device is already suspended.
How to mitigate CVE-2026-43301
Install security update from vendor's repository.