linux-cve-announce - CVE-2022-49965: drm/amd/pm: add missing ->fini

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Message-ID: <2025061815-CVE-2022-49965-08f3@gregkh>
Date: Wed, 18 Jun 2025 13:00:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-49965: drm/amd/pm: add missing ->fini_xxxx interfaces for some SMU13 asics

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

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

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

drm/amd/pm: add missing ->fini_xxxx interfaces for some SMU13 asics

Without these, potential memory leak may be induced.

The Linux kernel CVE team has assigned CVE-2022-49965 to this issue.


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

	Fixed in 5.19.7 with commit 22a75c616f1971c23838506b14971a4ef4a66bd7
	Fixed in 6.0 with commit 4bac1c846eff8042dd59ddecd0a43f3b9de5fd23

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-2022-49965
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/pm/swsmu/smu13/smu_v13_0_0_ppt.c
	drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.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/22a75c616f1971c23838506b14971a4ef4a66bd7
	https://git.kernel.org/stable/c/4bac1c846eff8042dd59ddecd0a43f3b9de5fd23