CVE-2026-9034

1th percentile - higher than 1% of all known CVEs

Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory. This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.

The risk includes potential data disclosure or arbitrary code execution in the context of the browser process, which may lead to system security compromise.

It is recommended to update Arm GPU userspace drivers to versions containing a fix and to restrict access to WebGL/WebGPU in browsers if possible.