linux-cve-announce - CVE-2023-52987: ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs

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Message-ID: <2025032707-CVE-2023-52987-bcc0@gregkh>
Date: Thu, 27 Mar 2025 17:43:34 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2023-52987: ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write()

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

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

ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write()

The "id" comes from the user.  Change the type to unsigned to prevent
an array underflow.

The Linux kernel CVE team has assigned CVE-2023-52987 to this issue.


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

	Issue introduced in 6.1 with commit f4ea22f7aa7536560097d765be56445933d07e0d and fixed in 6.1.11 with commit d52f34784e4e2f6e77671a9f104d8a69a3b5d24c
	Issue introduced in 6.1 with commit f4ea22f7aa7536560097d765be56445933d07e0d and fixed in 6.2 with commit ea57680af47587397f5005d7758022441ed66d54

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-2023-52987
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/sof/ipc4-mtrace.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/d52f34784e4e2f6e77671a9f104d8a69a3b5d24c
	https://git.kernel.org/stable/c/ea57680af47587397f5005d7758022441ed66d54