linux-cve-announce - CVE-2022-49117: mips: ralink: fix a refcount leak in ill_acc_of

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Message-ID: <2025022603-CVE-2022-49117-6f1f@gregkh>
Date: Wed, 26 Feb 2025 02:55:22 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49117: mips: ralink: fix a refcount leak in ill_acc_of_setup()

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

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

mips: ralink: fix a refcount leak in ill_acc_of_setup()

of_node_put(np) needs to be called when pdev == NULL.

The Linux kernel CVE team has assigned CVE-2022-49117 to this issue.


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

	Fixed in 5.4.189 with commit 060a485df4ec1183d543317511cb4caa43468b5d
	Fixed in 5.10.111 with commit 142ae7d4f21524acfe073e5a3da5667aa85eb970
	Fixed in 5.15.34 with commit 5fb47ca3490813d3884d8ad0b2ce511aa3537551
	Fixed in 5.16.20 with commit 8d7f7ef7980f287ace1c15f2ac03d6754e12f071
	Fixed in 5.17.3 with commit c74c755daed551b9aceb8388159180861474bdfe
	Fixed in 5.18 with commit 4a0a1436053b17e50b7c88858fb0824326641793

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-2022-49117
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:
	arch/mips/ralink/ill_acc.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/060a485df4ec1183d543317511cb4caa43468b5d
	https://git.kernel.org/stable/c/142ae7d4f21524acfe073e5a3da5667aa85eb970
	https://git.kernel.org/stable/c/5fb47ca3490813d3884d8ad0b2ce511aa3537551
	https://git.kernel.org/stable/c/8d7f7ef7980f287ace1c15f2ac03d6754e12f071
	https://git.kernel.org/stable/c/c74c755daed551b9aceb8388159180861474bdfe
	https://git.kernel.org/stable/c/4a0a1436053b17e50b7c88858fb0824326641793