linux-cve-announce - CVE-2023-53437: media: uvcvideo: Handle cameras with invalid descriptors

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Message-ID: <2025091858-CVE-2023-53437-7993@gregkh>
Date: Thu, 18 Sep 2025 18:04:28 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53437: media: uvcvideo: Handle cameras with invalid descriptors

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

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

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

media: uvcvideo: Handle cameras with invalid descriptors

If the source entity does not contain any pads, do not create a link.

The Linux kernel CVE team has assigned CVE-2023-53437 to this issue.


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

	Fixed in 4.14.308 with commit c8f4a424af5879baefb0fb8a8a09b09ea1779483
	Fixed in 4.19.276 with commit 2914259fcea23971c6fed8b2618d3a729a78c365
	Fixed in 5.4.235 with commit 4e4e6ca62e77539d4df8d13137e2683b10baddd9
	Fixed in 5.10.173 with commit d8aa2e1ae6426d7cbddf1735aed1a63ddf0e6909
	Fixed in 5.15.100 with commit 31a8d11d28b57656cebfbd4c0b8b76f6ad5b017d
	Fixed in 6.1.18 with commit 11196ee3916e50a5da3c1e6ecda19a02dca14ba3
	Fixed in 6.2.5 with commit 1a76cfc388cf105d3e04ac592670a52a3864b1ba
	Fixed in 6.3 with commit 41ddb251c68ac75c101d3a50a68c4629c9055e4c

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-2023-53437
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/uvc/uvc_entity.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/c8f4a424af5879baefb0fb8a8a09b09ea1779483
	https://git.kernel.org/stable/c/2914259fcea23971c6fed8b2618d3a729a78c365
	https://git.kernel.org/stable/c/4e4e6ca62e77539d4df8d13137e2683b10baddd9
	https://git.kernel.org/stable/c/d8aa2e1ae6426d7cbddf1735aed1a63ddf0e6909
	https://git.kernel.org/stable/c/31a8d11d28b57656cebfbd4c0b8b76f6ad5b017d
	https://git.kernel.org/stable/c/11196ee3916e50a5da3c1e6ecda19a02dca14ba3
	https://git.kernel.org/stable/c/1a76cfc388cf105d3e04ac592670a52a3864b1ba
	https://git.kernel.org/stable/c/41ddb251c68ac75c101d3a50a68c4629c9055e4c