linux-cve-announce - CVE-2024-53129: drm/rockchip: vop: Fix a dereferenced before check warning

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Message-ID: <2024120449-CVE-2024-53129-9f04@gregkh>
Date: Wed,  4 Dec 2024 15:20:52 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53129: drm/rockchip: vop: Fix a dereferenced before check warning

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

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

drm/rockchip: vop: Fix a dereferenced before check warning

The 'state' can't be NULL, we should check crtc_state.

Fix warning:
drivers/gpu/drm/rockchip/rockchip_drm_vop.c:1096
vop_plane_atomic_async_check() warn: variable dereferenced before check
'state' (see line 1077)

The Linux kernel CVE team has assigned CVE-2024-53129 to this issue.


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

	Issue introduced in 5.13 with commit 5ddb0bd4ddc3 and fixed in 6.1.119 with commit 656dbd1c21c2
	Issue introduced in 5.13 with commit 5ddb0bd4ddc3 and fixed in 6.6.63 with commit 1e5305972969
	Issue introduced in 5.13 with commit 5ddb0bd4ddc3 and fixed in 6.11.10 with commit bbf8bc7e7586
	Issue introduced in 5.13 with commit 5ddb0bd4ddc3 and fixed in 6.12 with commit ab1c793f457f

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-2024-53129
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/rockchip/rockchip_drm_vop.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/656dbd1c21c2c088c70059cdd43ec83e7d54ec4d
	https://git.kernel.org/stable/c/1e53059729691ca4d905118258b9fbd17d854174
	https://git.kernel.org/stable/c/bbf8bc7e75863942028131ae39c23118f62de6c0
	https://git.kernel.org/stable/c/ab1c793f457f740ab7108cc0b1340a402dbf484d