Improper control of a resource through its lifetime in Linux kernel - CVE-2026-31479
Published: April 24, 2026
Vulnerability identifier: #VU127674
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-2026-31479
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 xe virtual memory bind/unwind handling in drm/xe when processing crafted VM bind and rebind operations during 3D workloads. A local user can trigger bind operations that cause overlapping VMA re-insertion and leave the VM in a bad state to cause a denial of service.
The issue can be triggered on the unwind path, including with a vector of binds, when a rebind occurs in the middle of a VMA and compatible mapped ends are skipped.
How to mitigate CVE-2026-31479
Install security update from vendor's repository.