linux-cve-announce - CVE-2022-49161: ASoC: mediatek: Fix error handling in mt8183_da7219_max98357_dev

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025022611-CVE-2022-49161-ff61@gregkh>
Date: Wed, 26 Feb 2025 02:56:06 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49161: ASoC: mediatek: Fix error handling in mt8183_da7219_max98357_dev_probe

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

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

ASoC: mediatek: Fix error handling in mt8183_da7219_max98357_dev_probe

The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.

This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error paths.
Fix this by calling of_node_put() in error handling too.

The Linux kernel CVE team has assigned CVE-2022-49161 to this issue.


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

	Fixed in 5.17.2 with commit 9b9f6227e8d0c7c46b6d9d7b8a5c4e0536049fcf
	Fixed in 5.18 with commit 28a265a1ee11febeec5ea73a804f30dcec3181ca

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-2022-49161
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:
	sound/soc/mediatek/mt8183/mt8183-da7219-max98357.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/9b9f6227e8d0c7c46b6d9d7b8a5c4e0536049fcf
	https://git.kernel.org/stable/c/28a265a1ee11febeec5ea73a804f30dcec3181ca