linux-cve-announce - CVE-2023-54263: drm/nouveau/kms/nv50-: init hpd_irq

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Message-ID: <2025123058-CVE-2023-54263-0976@gregkh>
Date: Tue, 30 Dec 2025 13:20:29 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-54263: drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP

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

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

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

drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP

Fixes OOPS on boards with ANX9805 DP encoders.

The Linux kernel CVE team has assigned CVE-2023-54263 to this issue.


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

	Fixed in 6.4.7 with commit 92d48ce21645267c574268678131cd2b648dad0f
	Fixed in 6.5 with commit ea293f823a8805735d9e00124df81a8f448ed1ae

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-2023-54263
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/nouveau/dispnv50/disp.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/92d48ce21645267c574268678131cd2b648dad0f
	https://git.kernel.org/stable/c/ea293f823a8805735d9e00124df81a8f448ed1ae