linux-cve-announce - CVE-2023-54261: drm/amdkfd: Add missing gfx11 MQD manager callbacks

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Message-ID: <2025123057-CVE-2023-54261-0331@gregkh>
Date: Tue, 30 Dec 2025 13:20:27 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-54261: drm/amdkfd: Add missing gfx11 MQD manager callbacks

From: Greg Kroah-Hartman <gregkh@...nel.org>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Add missing gfx11 MQD manager callbacks

mqd_stride function was introduced in commit 2f77b9a242a2
("drm/amdkfd: Update MQD management on multi XCC setup")
but not assigned for gfx11. Fixes a NULL dereference in debugfs.

The Linux kernel CVE team has assigned CVE-2023-54261 to this issue.


Affected and fixed versions
===========================

	Fixed in 6.5.4 with commit 399b73d6b7720a9eae68a333193b53ed4f432fe5
	Fixed in 6.6 with commit e9dca969b2426702a73719ab9207e43c6d80b581

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2023-54261
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v11.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/399b73d6b7720a9eae68a333193b53ed4f432fe5
	https://git.kernel.org/stable/c/e9dca969b2426702a73719ab9207e43c6d80b581