Improper control of a resource through its lifetime in Linux kernel - CVE-2026-31571
Published: April 25, 2026
Vulnerability identifier: #VU127829
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-2026-31571
CWE-ID: CWE-664
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 state management in the i915 NV12 plane handling logic when processing userspace plane reconfiguration requests. A local user can reconfigure a plane previously selected as a Y plane as a normal plane to cause a denial of service.
The issue occurs when plane state computed by plane_atomic_check() is later clobbered by unlink_nv12_plane().
How to mitigate CVE-2026-31571
Install security update from vendor's repository.