linux-cve-announce - CVE-2022-49245: ASoC: rockchip: Fix PM usage reference of rockchip_i2s_tdm

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Message-ID: <2025022625-CVE-2022-49245-dcd4@gregkh>
Date: Wed, 26 Feb 2025 02:57:30 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49245: ASoC: rockchip: Fix PM usage reference of rockchip_i2s_tdm_resume

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

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

ASoC: rockchip: Fix PM usage reference of rockchip_i2s_tdm_resume

pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced.

The Linux kernel CVE team has assigned CVE-2022-49245 to this issue.


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

	Issue introduced in 5.16 with commit 081068fd641403994f0505e6b91e021d3925f348 and fixed in 5.16.19 with commit 4e5510219111607b1f1875ab3c3f0485ba3c381c
	Issue introduced in 5.16 with commit 081068fd641403994f0505e6b91e021d3925f348 and fixed in 5.17.2 with commit 5c1834aac759ddfd0f17c9f38db1b30adc8eb4e8
	Issue introduced in 5.16 with commit 081068fd641403994f0505e6b91e021d3925f348 and fixed in 5.18 with commit cc5d8ac95663a5813c696008bc524b794d471215

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-2022-49245
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/rockchip/rockchip_i2s_tdm.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/4e5510219111607b1f1875ab3c3f0485ba3c381c
	https://git.kernel.org/stable/c/5c1834aac759ddfd0f17c9f38db1b30adc8eb4e8
	https://git.kernel.org/stable/c/cc5d8ac95663a5813c696008bc524b794d471215