linux-cve-announce - CVE-2025-37919: ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm

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Message-ID: <2025052002-CVE-2025-37919-d839@gregkh>
Date: Tue, 20 May 2025 17:22:16 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-37919: ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot

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

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

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

ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot

Update chip data using dev_get_drvdata(dev->parent) to fix
NULL pointer deref in acp_i2s_set_tdm_slot.

The Linux kernel CVE team has assigned CVE-2025-37919 to this issue.


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

	Issue introduced in 6.12 with commit cd60dec8994cf0626faf80a67be9350ae335f7e9 and fixed in 6.12.28 with commit 3104b7d559ffb28f34e55028ff55a475e26e2e1e
	Issue introduced in 6.12 with commit cd60dec8994cf0626faf80a67be9350ae335f7e9 and fixed in 6.14.6 with commit fd4d8d139030dd2de97ef46d332673675ca8ad72
	Issue introduced in 6.12 with commit cd60dec8994cf0626faf80a67be9350ae335f7e9 and fixed in 6.15-rc5 with commit 6d9b64156d849e358cb49b6b899fb0b7d262bda8

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-2025-37919
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/amd/acp/acp-i2s.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/3104b7d559ffb28f34e55028ff55a475e26e2e1e
	https://git.kernel.org/stable/c/fd4d8d139030dd2de97ef46d332673675ca8ad72
	https://git.kernel.org/stable/c/6d9b64156d849e358cb49b6b899fb0b7d262bda8