linux-cve-announce - CVE-2023-53092: interconnect: exynos: fix node leak in probe PM QoS error path

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Message-ID: <2025050221-CVE-2023-53092-91b5@gregkh>
Date: Fri,  2 May 2025 17:55:57 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53092: interconnect: exynos: fix node leak in probe PM QoS error path

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

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

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

interconnect: exynos: fix node leak in probe PM QoS error path

Make sure to add the newly allocated interconnect node to the provider
before adding the PM QoS request so that the node is freed on errors.

The Linux kernel CVE team has assigned CVE-2023-53092 to this issue.


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

	Issue introduced in 5.11 with commit 2f95b9d5cf0b3d15154225e369558a3c6b40e948 and fixed in 5.15.104 with commit fd4738ae1a0c216d25360a98e835967b06d6a253
	Issue introduced in 5.11 with commit 2f95b9d5cf0b3d15154225e369558a3c6b40e948 and fixed in 6.1.21 with commit c479e4ac4a3d1485a48599e66ce46547c1367828
	Issue introduced in 5.11 with commit 2f95b9d5cf0b3d15154225e369558a3c6b40e948 and fixed in 6.2.8 with commit b71dd43bd49bd68186c1d19dbeedee219e003149
	Issue introduced in 5.11 with commit 2f95b9d5cf0b3d15154225e369558a3c6b40e948 and fixed in 6.3 with commit 3aab264875bf3c915ea2517fae1eec213e0b4987

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-2023-53092
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:
	drivers/interconnect/samsung/exynos.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/fd4738ae1a0c216d25360a98e835967b06d6a253
	https://git.kernel.org/stable/c/c479e4ac4a3d1485a48599e66ce46547c1367828
	https://git.kernel.org/stable/c/b71dd43bd49bd68186c1d19dbeedee219e003149
	https://git.kernel.org/stable/c/3aab264875bf3c915ea2517fae1eec213e0b4987