linux-cve-announce - CVE-2025-38044: media: cx231xx: set device

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Message-ID: <2025061829-CVE-2025-38044-4caf@gregkh>
Date: Wed, 18 Jun 2025 11:33:40 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38044: media: cx231xx: set device_caps for 417

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

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

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

media: cx231xx: set device_caps for 417

The video_device for the MPEG encoder did not set device_caps.

Add this, otherwise the video device can't be registered (you get a
WARN_ON instead).

Not seen before since currently 417 support is disabled, but I found
this while experimenting with it.

The Linux kernel CVE team has assigned CVE-2025-38044 to this issue.


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

	Fixed in 5.4.294 with commit 2ad41beb7df3bd63b209842d16765ec59dafe6e4
	Fixed in 5.10.238 with commit 0884dd3abbe80307a2d4cbdbe5e312be164f8adb
	Fixed in 5.15.185 with commit c91447e35b9bea60bda4408c48e7891d14351021
	Fixed in 6.1.141 with commit 9d1a5be86dbe074bd8dd6bdd63a99d6bb66d5930
	Fixed in 6.6.93 with commit 5c9eca180a4235abd56cc7f7308ca72128d93dce
	Fixed in 6.12.31 with commit 4731d5328f507ae8fd8a57abbca9119ec7a8d665
	Fixed in 6.14.9 with commit e43fd82bb2110bf9d13d800cdc49cceddfd0ede5
	Fixed in 6.15 with commit a79efc44b51432490538a55b9753a721f7d3ea42

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-2025-38044
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/media/usb/cx231xx/cx231xx-417.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/2ad41beb7df3bd63b209842d16765ec59dafe6e4
	https://git.kernel.org/stable/c/0884dd3abbe80307a2d4cbdbe5e312be164f8adb
	https://git.kernel.org/stable/c/c91447e35b9bea60bda4408c48e7891d14351021
	https://git.kernel.org/stable/c/9d1a5be86dbe074bd8dd6bdd63a99d6bb66d5930
	https://git.kernel.org/stable/c/5c9eca180a4235abd56cc7f7308ca72128d93dce
	https://git.kernel.org/stable/c/4731d5328f507ae8fd8a57abbca9119ec7a8d665
	https://git.kernel.org/stable/c/e43fd82bb2110bf9d13d800cdc49cceddfd0ede5
	https://git.kernel.org/stable/c/a79efc44b51432490538a55b9753a721f7d3ea42