CVE-2023-28147: Arm Avalon GPU Kernel Driver

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r29p0 through r32p0, Bifrost r17p0 through r42p0 before r43p0, Valhall r19p0 through r42p0 before r43p0, and Arm's GPU Architecture Gen5 r41p0 through r42p0 before r43p0.

Affected products

• Arm Avalon GPU Kernel Driver: from r41p0, before r43p0 (fixed in r43p0)
• Arm Bifrost GPU Kernel Driver: from r17p0, before r43p0 (fixed in r43p0)
• Arm Midgard GPU Kernel Driver: from r29p0, up to and including r32p0
• Arm Valhall GPU Kernel Driver: from r19p0, before r43p0 (fixed in r43p0)

Published 2023-06-02. Last modified 2026-06-17.