linux-cve-announce - CVE-2026-23049: drm/panel-simple: fix connector type for DataImage SCF0700C48GGU18 panel

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Message-ID: <2026020449-CVE-2026-23049-9298@gregkh>
Date: Wed,  4 Feb 2026 17:04:44 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2026-23049: drm/panel-simple: fix connector type for DataImage SCF0700C48GGU18 panel

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

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

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

drm/panel-simple: fix connector type for DataImage SCF0700C48GGU18 panel

The connector type for the DataImage SCF0700C48GGU18 panel is missing and
devm_drm_panel_bridge_add() requires connector type to be set. This leads
to a warning and a backtrace in the kernel log and panel does not work:
"
WARNING: CPU: 3 PID: 38 at drivers/gpu/drm/bridge/panel.c:379 devm_drm_of_get_bridge+0xac/0xb8
"
The warning is triggered by a check for valid connector type in
devm_drm_panel_bridge_add(). If there is no valid connector type
set for a panel, the warning is printed and panel is not added.
Fill in the missing connector type to fix the warning and make
the panel operational once again.

The Linux kernel CVE team has assigned CVE-2026-23049 to this issue.


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

	Issue introduced in 4.19 with commit 97ceb1fb08b6a2f78aa44a7c229ca280964860c0 and fixed in 6.6.122 with commit bc0b17bdba3838e9e17e7e9adc968384ac99938b
	Issue introduced in 4.19 with commit 97ceb1fb08b6a2f78aa44a7c229ca280964860c0 and fixed in 6.12.67 with commit 04218cd68d1502000823c8288f37b4f171dcdcae
	Issue introduced in 4.19 with commit 97ceb1fb08b6a2f78aa44a7c229ca280964860c0 and fixed in 6.18.7 with commit f7940d3ec1dc6bf719eddc69d4b8e52cc2201896
	Issue introduced in 4.19 with commit 97ceb1fb08b6a2f78aa44a7c229ca280964860c0 and fixed in 6.19-rc6 with commit 6ab3d4353bf75005eaa375677c9fed31148154d6

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-2026-23049
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-simple.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/bc0b17bdba3838e9e17e7e9adc968384ac99938b
	https://git.kernel.org/stable/c/04218cd68d1502000823c8288f37b4f171dcdcae
	https://git.kernel.org/stable/c/f7940d3ec1dc6bf719eddc69d4b8e52cc2201896
	https://git.kernel.org/stable/c/6ab3d4353bf75005eaa375677c9fed31148154d6