CVE-2026-11891

Name of the Vulnerable Software and Affected Versions Valhall GPU Userspace Driver versions r46p0 through r55p0 Arm 5th Gen GPU Architecture Userspace Driver versions r46p0 through r55p0

Description A Use After Free issue exists in the userspace drivers, where a non-privileged user process can access memory that has already been freed. This can be triggered by performing valid GPU processing operations, including through WebGL or WebGPU. Use After Free is a condition where a program continues to use a pointer after it has been freed, which can lead to crashes or unauthorized memory access.

Recommendations Update Valhall GPU Userspace Driver to version r56p0. Update Arm 5th Gen GPU Architecture Userspace Driver to version r56p0.