linux-cve-announce - CVE-2022-49966: drm/amd/pm: add missing ->fini

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Message-ID: <2025061815-CVE-2022-49966-6b06@gregkh>
Date: Wed, 18 Jun 2025 13:00:31 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-49966: drm/amd/pm: add missing ->fini_microcode interface for Sienna Cichlid

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

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

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

drm/amd/pm: add missing ->fini_microcode interface for Sienna Cichlid

To avoid any potential memory leak.

The Linux kernel CVE team has assigned CVE-2022-49966 to this issue.


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

	Fixed in 5.10.141 with commit 60d522f317078381ff8a3599fe808f96fc256cd5
	Fixed in 5.15.65 with commit a89e753d5a9f3b321f4a3098e2755c5aabcff0af
	Fixed in 5.19.7 with commit 4d21584ac6392aa66171b7efd647ecd1a447556b
	Fixed in 6.0 with commit 0a2d922a5618377cdf8fa476351362733ef55342

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-2022-49966
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/smu11/sienna_cichlid_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/60d522f317078381ff8a3599fe808f96fc256cd5
	https://git.kernel.org/stable/c/a89e753d5a9f3b321f4a3098e2755c5aabcff0af
	https://git.kernel.org/stable/c/4d21584ac6392aa66171b7efd647ecd1a447556b
	https://git.kernel.org/stable/c/0a2d922a5618377cdf8fa476351362733ef55342