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CVE-2023-6363: Mali GPU Kernel Driver allows improper GPU processing operations

• Severity: medium (CVSS 5.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-416

Description

Use After Free vulnerability in 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 memory processing operations. If the system’s memory is carefully prepared by the user, then this in turn could give them access to already freed memory. This issue affects Valhall GPU Kernel Driver: from r41p0 through r47p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r47p0.

Affected products

• Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 before r48p0 — fixed in r48p0
• Arm Ltd Valhall GPU Kernel Driver: from r41p0 before r48p0 — fixed in r48p0

How to fix

Upgrade to a fixed version: Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r48p0; Arm Ltd Valhall GPU Kernel Driver r48p0. Check the vendor advisory for mitigations.

References

• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

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