CVE-2023-5427: Arm 5th Gen GPU Architecture Kernel Driver

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.

Affected products

• Arm 5th Gen GPU Architecture Kernel Driver: from r44p0, before r46p0 (fixed in r46p0)
• Arm Bifrost GPU Kernel Driver: from r44p0, before r46p0 (fixed in r46p0)
• Arm Valhall GPU Kernel Driver: from r44p0, before r46p0 (fixed in r46p0)

Published 2023-12-01. Last modified 2026-06-17.