CVE-2025-0427 Mali GPU Kernel Driver allows access to already freed memory

High 7.8 Published 2 May 2025 Updated 12 May 2025

A local attacker can exploit a use-after-free flaw in Mali GPU drivers to access freed memory, potentially leading to privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2025-0427?

CVE-2025-0427 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 2 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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 process to perform valid GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r8p0 through r49p3, from r50p0 through r51p0; Valhall GPU Kernel Driver: from r19p0 through r49p3, from r50p0 through r53p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p3, from r50p0 through r53p0.

Weakness: CWE-416

Which versions are affected by CVE-2025-0427?

It affects 3 products.

Products include Arm 5th Gen Gpu Architecture Kernel Driver, Arm Bifrost Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.

How do I fix CVE-2025-0427?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2025-0427 being exploited?

There is no known exploitation of CVE-2025-0427 in the wild and no public exploit code.

All Arm Valhall Gpu Kernel Driver vulnerabilities

Sources

Also known as A-391932683, ASB-A-391932683, GHSA-rj95-ccvx-j559.