CVE-2023-5643: Mali GPU Kernel Driver allows improper GPU memory processing operations

First published: Mon Feb 05 2024(Updated: )

Out-of-bounds Write 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 memory processing operations. Depending on the configuration of the Mali GPU Kernel Driver, and if the system’s memory is carefully prepared by the user, then this in turn could write to memory outside of buffer bounds.This issue affects Bifrost GPU Kernel Driver: from r41p0 through r45p0; Valhall GPU Kernel Driver: from r41p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r45p0.

Credit: arm-security@arm.com

Affected Software	Affected Version	How to fix
Arm 5th Gen GPU Architecture Kernel Driver	>=r41p0<r46p0
Arm Bifrost Gpu Kernel Driver	>=r41p0<r46p0
Arm Valhall Gpu Kernel Driver	>=r41p0<r46p0
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Remedy

This issue is fixed in Bifrost, Valhall, and Arm 5th Gen GPU Architecture Kernel Driver r46p0. Users are recommended to upgrade if they are impacted by this issue.

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