linux-cve-announce - CVE-2022-49239: ASoC: codecs: wcd934x: Add missing of_node_put() in wcd934x_codec_parse

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Message-ID: <2025022624-CVE-2022-49239-e012@gregkh>
Date: Wed, 26 Feb 2025 02:57:24 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49239: ASoC: codecs: wcd934x: Add missing of_node_put() in wcd934x_codec_parse_data

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

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

ASoC: codecs: wcd934x: Add missing of_node_put() in wcd934x_codec_parse_data

The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.
This is similar to commit 64b92de9603f
("ASoC: wcd9335: fix a leaked reference by adding missing of_node_put")

The Linux kernel CVE team has assigned CVE-2022-49239 to this issue.


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

	Issue introduced in 5.6 with commit a61f3b4f476eceb25274161e5a53a8d18e42610b and fixed in 5.10.110 with commit 1f24716e38220fc9e52e208d20591d2bc9b7f020
	Issue introduced in 5.6 with commit a61f3b4f476eceb25274161e5a53a8d18e42610b and fixed in 5.15.33 with commit 2f44eca78cc6d4e1779eb95765ec79e433accab4
	Issue introduced in 5.6 with commit a61f3b4f476eceb25274161e5a53a8d18e42610b and fixed in 5.16.19 with commit f3793eeb7b94a5eeed6f5c7a44bce403c6681a12
	Issue introduced in 5.6 with commit a61f3b4f476eceb25274161e5a53a8d18e42610b and fixed in 5.17.2 with commit f8e89d84ea83c51ba3ba97ff154f7aa679326760
	Issue introduced in 5.6 with commit a61f3b4f476eceb25274161e5a53a8d18e42610b and fixed in 5.18 with commit 9531a631379169d57756b2411178c6238655df88

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-2022-49239
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/wcd934x.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/1f24716e38220fc9e52e208d20591d2bc9b7f020
	https://git.kernel.org/stable/c/2f44eca78cc6d4e1779eb95765ec79e433accab4
	https://git.kernel.org/stable/c/f3793eeb7b94a5eeed6f5c7a44bce403c6681a12
	https://git.kernel.org/stable/c/f8e89d84ea83c51ba3ba97ff154f7aa679326760
	https://git.kernel.org/stable/c/9531a631379169d57756b2411178c6238655df88