linux-cve-announce - CVE-2022-50125: ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform

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Message-ID: <2025061812-CVE-2022-50125-5895@gregkh>
Date: Wed, 18 Jun 2025 13:03:10 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50125: ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe

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

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

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

ASoC: cros_ec_codec: Fix refcount leak in cros_ec_codec_platform_probe

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

The Linux kernel CVE team has assigned CVE-2022-50125 to this issue.


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

	Issue introduced in 5.5 with commit b6bc07d4360dbf766e551f18e43c67fff6784955 and fixed in 5.10.137 with commit bae95c5aee1f67da6608ceaebfb744d900e5ffbf
	Issue introduced in 5.5 with commit b6bc07d4360dbf766e551f18e43c67fff6784955 and fixed in 5.15.61 with commit 1065c385325845c88350c765cc6e449f46741984
	Issue introduced in 5.5 with commit b6bc07d4360dbf766e551f18e43c67fff6784955 and fixed in 5.18.18 with commit b3e64b5562c077218295f2230fb5cf181193cb06
	Issue introduced in 5.5 with commit b6bc07d4360dbf766e551f18e43c67fff6784955 and fixed in 5.19.2 with commit ca6c9244e6c9827a0b2fe8808c5e7b1ee8ab7104
	Issue introduced in 5.5 with commit b6bc07d4360dbf766e551f18e43c67fff6784955 and fixed in 6.0 with commit 0a034d93ee929a9ea89f3fa5f1d8492435b9ee6e

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-2022-50125
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/codecs/cros_ec_codec.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/bae95c5aee1f67da6608ceaebfb744d900e5ffbf
	https://git.kernel.org/stable/c/1065c385325845c88350c765cc6e449f46741984
	https://git.kernel.org/stable/c/b3e64b5562c077218295f2230fb5cf181193cb06
	https://git.kernel.org/stable/c/ca6c9244e6c9827a0b2fe8808c5e7b1ee8ab7104
	https://git.kernel.org/stable/c/0a034d93ee929a9ea89f3fa5f1d8492435b9ee6e