Arm Mali GPU Valhall and 5th Gen Architecture Kernel Drivers Use-After-Free Vulnerability

A use-after-free vulnerability has been identified in the Arm Mali Valhall GPU Kernel Driver and the Arm 5th Gen GPU Architecture Kernel Driver, both allowing local non-privileged user processes to access already freed memory. This vulnerability arises from improper GPU memory processing operations, potentially leading to exploitation by accessing sensitive data or causing memory corruption. The issue affects Valhall GPU Kernel Driver versions r53p0 prior to r54p1 and Arm 5th Gen GPU Architecture Kernel Driver versions r53p0 prior to r54p1.

Impact

Exploitation of this vulnerability could allow a local non-privileged user process to access already freed memory, potentially leading to memory corruption or unauthorized access to sensitive data.

Remediation

Users are advised to upgrade to Arm Mali Valhall GPU Kernel Driver r54p2 or r55p0, or to Arm 5th Gen GPU Architecture Kernel Driver r54p2 or r55p0.