CVE-2023-6241: Mali GPU Kernel Driver allows improper GPU memory processing operations

Severity: high (CVSS 7.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-04 · updated 2026-06-17
Weakness: CWE-416

Description

Use After Free vulnerability in Arm Ltd Midgard GPU Kernel Driver, 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 exploit a software race condition to perform improper memory processing operations. If the system’s memory is carefully prepared by the user, then this in turn cause a use-after-free.This issue affects Midgard GPU Kernel Driver: from r13p0 through r32p0; Bifrost GPU Kernel Driver: from r11p0 through r25p0; Valhall GPU Kernel Driver: from r19p0 through r25p0, from r29p0 through r46p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r46p0.

Affected products

Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 before r47p0 — fixed in r47p0
Arm Ltd Bifrost GPU Kernel Driver: from r11p0 before r26p0 — fixed in r26p0
Arm Ltd Midgard GPU Kernel Driver: from r13p0 through r32p0
Arm Ltd Valhall GPU Kernel Driver: from r19p0 before r26p0; from r29p0 before r47p0 — fixed in r26p0, r47p0

How to fix

Upgrade to a fixed version: Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r47p0; Arm Ltd Bifrost GPU Kernel Driver r26p0; Arm Ltd Valhall GPU Kernel Driver r26p0, r47p0. Check the vendor advisory for mitigations.

References

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