What’s Vulnerable › Vulnerabilities

CVE-2023-5427: Mali GPU Kernel Driver allows improper GPU processing operations

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-01 · updated 2026-06-17
• Weakness: CWE-416

Description

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 Ltd Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 before r46p0 — fixed in r46p0
• Arm Ltd Bifrost GPU Kernel Driver: from r44p0 before r46p0 — fixed in r46p0
• Arm Ltd Valhall GPU Kernel Driver: from r44p0 before r46p0 — fixed in r46p0

How to fix

Upgrade to a fixed version: Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r46p0; Arm Ltd Bifrost GPU Kernel Driver r46p0; Arm Ltd Valhall GPU Kernel Driver r46p0. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.html
• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.html
• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

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