linux-cve-announce - CVE-2022-50115: ASoC: SOF: ipc3-topology: Prevent double freeing of ipc_control_data via load

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025061809-CVE-2022-50115-86c0@gregkh>
Date: Wed, 18 Jun 2025 13:03:00 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50115: ASoC: SOF: ipc3-topology: Prevent double freeing of ipc_control_data via load_bytes

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

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

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

ASoC: SOF: ipc3-topology: Prevent double freeing of ipc_control_data via load_bytes

We have sanity checks for byte controls and if any of the fail the locally
allocated scontrol->ipc_control_data is freed up, but not set to NULL.

On a rollback path of the error the higher level code will also try to free
the scontrol->ipc_control_data which will eventually going to lead to
memory corruption as double freeing memory is not a good thing.

The Linux kernel CVE team has assigned CVE-2022-50115 to this issue.


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

	Issue introduced in 5.18 with commit b5cee8feb1d482a9d07b677f4f2f9565bacda53e and fixed in 5.18.18 with commit 8463986b54295e6b65ddf2b7c65627d01ce7643b
	Issue introduced in 5.18 with commit b5cee8feb1d482a9d07b677f4f2f9565bacda53e and fixed in 5.19.2 with commit c2eddfcafcffaf1b9245ea0dde9143bbfb47d5d1
	Issue introduced in 5.18 with commit b5cee8feb1d482a9d07b677f4f2f9565bacda53e and fixed in 6.0 with commit d5bd47f3ca124058a8e87eae4508afeda2132611

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-2022-50115
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/ipc3-topology.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/8463986b54295e6b65ddf2b7c65627d01ce7643b
	https://git.kernel.org/stable/c/c2eddfcafcffaf1b9245ea0dde9143bbfb47d5d1
	https://git.kernel.org/stable/c/d5bd47f3ca124058a8e87eae4508afeda2132611