linux-cve-announce - CVE-2024-57980: media: uvcvideo: Fix double free in error path

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Message-ID: <2025022634-CVE-2024-57980-4b5a@gregkh>
Date: Wed, 26 Feb 2025 18:05:39 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-57980: media: uvcvideo: Fix double free in error path

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

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

media: uvcvideo: Fix double free in error path

If the uvc_status_init() function fails to allocate the int_urb, it will
free the dev->status pointer but doesn't reset the pointer to NULL. This
results in the kfree() call in uvc_status_cleanup() trying to
double-free the memory. Fix it by resetting the dev->status pointer to
NULL after freeing it.

Reviewed by: Ricardo Ribalda <ribalda@...omium.org>

The Linux kernel CVE team has assigned CVE-2024-57980 to this issue.


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

	Issue introduced in 2.6.28 with commit a31a4055473bf0a7b2b06cb2262347200d0711e1 and fixed in 6.1.129 with commit 9232719ac9ce4d5c213cebda23d72aec3e1c4c0d
	Issue introduced in 2.6.28 with commit a31a4055473bf0a7b2b06cb2262347200d0711e1 and fixed in 6.6.76 with commit 6c36dcd662ec5276782838660f8533a7cb26be49
	Issue introduced in 2.6.28 with commit a31a4055473bf0a7b2b06cb2262347200d0711e1 and fixed in 6.12.13 with commit d1f8e69eec91d5a75ef079778a5d0151db2a7f22
	Issue introduced in 2.6.28 with commit a31a4055473bf0a7b2b06cb2262347200d0711e1 and fixed in 6.13.2 with commit d8e63dd7b6683969d3d47c7b8e9635f96d554ad4
	Issue introduced in 2.6.28 with commit a31a4055473bf0a7b2b06cb2262347200d0711e1 and fixed in 6.14-rc1 with commit c6ef3a7fa97ec823a1e1af9085cf13db9f7b3bac

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-2024-57980
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_status.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/9232719ac9ce4d5c213cebda23d72aec3e1c4c0d
	https://git.kernel.org/stable/c/6c36dcd662ec5276782838660f8533a7cb26be49
	https://git.kernel.org/stable/c/d1f8e69eec91d5a75ef079778a5d0151db2a7f22
	https://git.kernel.org/stable/c/d8e63dd7b6683969d3d47c7b8e9635f96d554ad4
	https://git.kernel.org/stable/c/c6ef3a7fa97ec823a1e1af9085cf13db9f7b3bac