linux-cve-announce - CVE-2022-49225: mt76: mt7921s: fix a possible memory leak in mt7921_load

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Message-ID: <2025022622-CVE-2022-49225-4daa@gregkh>
Date: Wed, 26 Feb 2025 02:57:10 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49225: mt76: mt7921s: fix a possible memory leak in mt7921_load_patch

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

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

mt76: mt7921s: fix a possible memory leak in mt7921_load_patch

Always release fw data at the end of mt7921_load_patch routine.

The Linux kernel CVE team has assigned CVE-2022-49225 to this issue.


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

	Issue introduced in 5.17 with commit 78b217580c50994ae22dde4ecaaf147de0f355f6 and fixed in 5.17.2 with commit b301043384c5c2447357952be9a536c2026d8ad0
	Issue introduced in 5.17 with commit 78b217580c50994ae22dde4ecaaf147de0f355f6 and fixed in 5.18 with commit 11005b18f453aa192d035d410c11d07edcba5a45

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-2022-49225
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/net/wireless/mediatek/mt76/mt7921/mcu.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/b301043384c5c2447357952be9a536c2026d8ad0
	https://git.kernel.org/stable/c/11005b18f453aa192d035d410c11d07edcba5a45