linux-cve-announce - CVE-2025-40132: ASoC: Intel: sof_sdw: Prevent jump to NULL add

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Message-ID: <2025111254-CVE-2025-40132-9d00@gregkh>
Date: Wed, 12 Nov 2025 19:24:08 +0900
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-40132: ASoC: Intel: sof_sdw: Prevent jump to NULL add_sidecar callback

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

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

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

ASoC: Intel: sof_sdw: Prevent jump to NULL add_sidecar callback

In create_sdw_dailink() check that sof_end->codec_info->add_sidecar
is not NULL before calling it.

The original code assumed that if include_sidecar is true, the codec
on that link has an add_sidecar callback. But there could be other
codecs on the same link that do not have an add_sidecar callback.

The Linux kernel CVE team has assigned CVE-2025-40132 to this issue.


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

	Issue introduced in 6.10 with commit da5244180281a18c4c7859674fec308514aaf629 and fixed in 6.12.53 with commit aea038062edfca9c6e5ddcecd4611d5a80113b4e
	Issue introduced in 6.10 with commit da5244180281a18c4c7859674fec308514aaf629 and fixed in 6.17.3 with commit a5416c0fc9e77b69f853dfb1e78bc05a7c06a789
	Issue introduced in 6.10 with commit da5244180281a18c4c7859674fec308514aaf629 and fixed in 6.18-rc1 with commit 87cab86925b7fa4c1c977bc191ac549a3b23f0ea

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-2025-40132
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/intel/boards/sof_sdw.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/aea038062edfca9c6e5ddcecd4611d5a80113b4e
	https://git.kernel.org/stable/c/a5416c0fc9e77b69f853dfb1e78bc05a7c06a789
	https://git.kernel.org/stable/c/87cab86925b7fa4c1c977bc191ac549a3b23f0ea