linux-cve-announce - CVE-2024-56711: drm/panel: himax-hx83102: Add a check to prevent NULL pointer dereference

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 for Android: free password hash cracker in your pocket

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

Message-ID: <2024122913-CVE-2024-56711-d4f9@gregkh>
Date: Sun, 29 Dec 2024 09:48:15 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56711: drm/panel: himax-hx83102: Add a check to prevent NULL pointer dereference

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

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

drm/panel: himax-hx83102: Add a check to prevent NULL pointer dereference

drm_mode_duplicate() could return NULL due to lack of memory,
which will then call NULL pointer dereference. Add a check to
prevent it.

The Linux kernel CVE team has assigned CVE-2024-56711 to this issue.


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

	Issue introduced in 6.11 with commit 0ef94554dc40fbdb7e57ff90cd1e7fa71e1e89fd and fixed in 6.12.7 with commit 747547972e647509815ad8530ff09d62220a56c2
	Issue introduced in 6.11 with commit 0ef94554dc40fbdb7e57ff90cd1e7fa71e1e89fd and fixed in 6.13-rc4 with commit e1e1af9148dc4c866eda3fb59cd6ec3c7ea34b1d

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-2024-56711
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/panel/panel-himax-hx83102.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/747547972e647509815ad8530ff09d62220a56c2
	https://git.kernel.org/stable/c/e1e1af9148dc4c866eda3fb59cd6ec3c7ea34b1d