linux-cve-announce - CVE-2021-47643: media: ir_toy: free before error exiting

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Message-ID: <2025022647-CVE-2021-47643-0b4b@gregkh>
Date: Wed, 26 Feb 2025 02:53:54 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2021-47643: media: ir_toy: free before error exiting

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

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

media: ir_toy: free before error exiting

Fix leak in error path.

The Linux kernel CVE team has assigned CVE-2021-47643 to this issue.


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

	Fixed in 5.10.110 with commit 99e3f83539cac6884a4df02cb204a57a184ea12b
	Fixed in 5.15.33 with commit 2011363c196846c083649c91ed30aeef64358d52
	Fixed in 5.16.19 with commit 382e0f6958ef34eb093127b6d74c12f3b8fd0904
	Fixed in 5.17.2 with commit 93ef3fdf3b6633c58f049e5a6be755777dde4340
	Fixed in 5.18 with commit 52cdb013036391d9d87aba5b4fc49cdfc6ea4b23

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-2021-47643
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/rc/ir_toy.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/99e3f83539cac6884a4df02cb204a57a184ea12b
	https://git.kernel.org/stable/c/2011363c196846c083649c91ed30aeef64358d52
	https://git.kernel.org/stable/c/382e0f6958ef34eb093127b6d74c12f3b8fd0904
	https://git.kernel.org/stable/c/93ef3fdf3b6633c58f049e5a6be755777dde4340
	https://git.kernel.org/stable/c/52cdb013036391d9d87aba5b4fc49cdfc6ea4b23