linux-cve-announce - CVE-2023-53085: drm/edid: fix info leak when failing to get panel id

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: <2025050218-CVE-2023-53085-c37a@gregkh>
Date: Fri,  2 May 2025 17:55:50 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53085: drm/edid: fix info leak when failing to get panel id

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

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

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

drm/edid: fix info leak when failing to get panel id

Make sure to clear the transfer buffer before fetching the EDID to
avoid leaking slab data to the logs on errors that leave the buffer
unchanged.

The Linux kernel CVE team has assigned CVE-2023-53085 to this issue.


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

	Issue introduced in 6.2 with commit 69c7717c20cc87105b8b54ba43d12ca4e432a1a5 and fixed in 6.2.8 with commit 598c42c78919117dc0d235ae22d17ad642377483
	Issue introduced in 6.2 with commit 69c7717c20cc87105b8b54ba43d12ca4e432a1a5 and fixed in 6.3 with commit 4d8457fe0eb9c80ff7795cf8a30962128b71d853

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-2023-53085
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/drm_edid.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/598c42c78919117dc0d235ae22d17ad642377483
	https://git.kernel.org/stable/c/4d8457fe0eb9c80ff7795cf8a30962128b71d853