linux-cve-announce - CVE-2022-49616: ASoC: rt7*-sdw: harden jack_detect

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Message-ID: <2025022614-CVE-2022-49616-5eb4@gregkh>
Date: Wed, 26 Feb 2025 03:22:59 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49616: ASoC: rt7*-sdw: harden jack_detect_handler

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

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

ASoC: rt7*-sdw: harden jack_detect_handler

Realtek headset codec drivers typically check if the card is
instantiated before proceeding with the jack detection.

The rt700, rt711 and rt711-sdca are however missing a check on the
card pointer, which can lead to NULL dereferences encountered in
driver bind/unbind tests.

The Linux kernel CVE team has assigned CVE-2022-49616 to this issue.


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

	Fixed in 5.15.56 with commit 07a606e1389a63b61cb8cd591026f30529117573
	Fixed in 5.18.13 with commit 1d75b73ec6d6b705cca528b36d8315e43e8d7fa5
	Fixed in 5.19 with commit 0484271ab0ce50649329fa9dc23c50853c5b26a4

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-2022-49616
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/rt700.c
	sound/soc/codecs/rt711-sdca.c
	sound/soc/codecs/rt711.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/07a606e1389a63b61cb8cd591026f30529117573
	https://git.kernel.org/stable/c/1d75b73ec6d6b705cca528b36d8315e43e8d7fa5
	https://git.kernel.org/stable/c/0484271ab0ce50649329fa9dc23c50853c5b26a4