linux-cve-announce - CVE-2023-53605: drm: amd: display: Fix memory leakage

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Message-ID: <2025100432-CVE-2023-53605-a660@gregkh>
Date: Sat,  4 Oct 2025 17:51:59 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53605: drm: amd: display: Fix memory leakage

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

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

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

drm: amd: display: Fix memory leakage

This commit fixes memory leakage in dc_construct_ctx() function.

The Linux kernel CVE team has assigned CVE-2023-53605 to this issue.


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

	Fixed in 5.10.173 with commit d473c55ce1975c9e601c25293328a5039225d2b2
	Fixed in 5.15.99 with commit 9ae15ebaefc4878d614f10cc56ea672f88cea582
	Fixed in 6.1.16 with commit 83ace0dd67ee386be1ddcf59dab49d6d9a54e62e
	Fixed in 6.2.3 with commit 1bdea8ee92a6abc650b2189fd5c53f36859baecb
	Fixed in 6.3 with commit 6b8701be1f66064ca72733c5f6e13748cdbf8397

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-2023-53605
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/gpu/drm/amd/display/dc/core/dc.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/d473c55ce1975c9e601c25293328a5039225d2b2
	https://git.kernel.org/stable/c/9ae15ebaefc4878d614f10cc56ea672f88cea582
	https://git.kernel.org/stable/c/83ace0dd67ee386be1ddcf59dab49d6d9a54e62e
	https://git.kernel.org/stable/c/1bdea8ee92a6abc650b2189fd5c53f36859baecb
	https://git.kernel.org/stable/c/6b8701be1f66064ca72733c5f6e13748cdbf8397