linux-cve-announce - CVE-2025-37793: ASoC: Intel: avs: Fix null-ptr-deref in avs_component

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Message-ID: <2025050121-CVE-2025-37793-a56f@gregkh>
Date: Thu,  1 May 2025 15:07:40 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-37793: ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe()

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

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

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

ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe()

devm_kasprintf() returns NULL when memory allocation fails. Currently,
avs_component_probe() does not check for this case, which results in a
NULL pointer dereference.

The Linux kernel CVE team has assigned CVE-2025-37793 to this issue.


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

	Issue introduced in 6.6 with commit 739c031110da9ba966b0189fa25a2a1c0d42263c and fixed in 6.6.88 with commit aaa93b8846101461de815759d39979661b82d5a5
	Issue introduced in 6.6 with commit 739c031110da9ba966b0189fa25a2a1c0d42263c and fixed in 6.12.25 with commit 23fde311ea1d0a6c36bf92ce48b90b77d0ece1a4
	Issue introduced in 6.6 with commit 739c031110da9ba966b0189fa25a2a1c0d42263c and fixed in 6.14.4 with commit c2825073271b6f15e669a424b363612082494863
	Issue introduced in 6.6 with commit 739c031110da9ba966b0189fa25a2a1c0d42263c and fixed in 6.15-rc3 with commit 95f723cf141b95e3b3a5b92cf2ea98a863fe7275

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-2025-37793
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/avs/pcm.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/aaa93b8846101461de815759d39979661b82d5a5
	https://git.kernel.org/stable/c/23fde311ea1d0a6c36bf92ce48b90b77d0ece1a4
	https://git.kernel.org/stable/c/c2825073271b6f15e669a424b363612082494863
	https://git.kernel.org/stable/c/95f723cf141b95e3b3a5b92cf2ea98a863fe7275