CVE-2022-46891: Arm Bifrost GPU Kernel Driver

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r13p0 through r32p0, Bifrost r1p0 through r40p0, and Valhall r19p0 through r40p0.

Affected products

• Arm Bifrost GPU Kernel Driver: from r1p0, up to and including r40p0
• Arm Midgard GPU Kernel Driver: from r13p0, up to and including r32p0
• Arm Valhall GPU Kernel Driver: from r19p0, up to and including r40p0

Published 2023-01-17. Last modified 2026-06-17.