linux-cve-announce - CVE-2022-49230: mt76: mt7915: fix possible memory leak in mt7915_mcu_add

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Message-ID: <2025022623-CVE-2022-49230-2758@gregkh>
Date: Wed, 26 Feb 2025 02:57:15 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49230: mt76: mt7915: fix possible memory leak in mt7915_mcu_add_sta

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

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

mt76: mt7915: fix possible memory leak in mt7915_mcu_add_sta

Free allocated skb in mt7915_mcu_add_sta routine in case of failures.

The Linux kernel CVE team has assigned CVE-2022-49230 to this issue.


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

	Issue introduced in 5.16 with commit 89bbd3730f382f15cfcc2c9264c65b5901ce02fa and fixed in 5.16.19 with commit daf02c7e3c3dc82ffa925999597bd455cf799551
	Issue introduced in 5.16 with commit 89bbd3730f382f15cfcc2c9264c65b5901ce02fa and fixed in 5.17.2 with commit b334a245ff1d76b1e97af8cea648ea6798b9eb87
	Issue introduced in 5.16 with commit 89bbd3730f382f15cfcc2c9264c65b5901ce02fa and fixed in 5.18 with commit a43736cd12d82913102eb49cb56787a5553e028f

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-2022-49230
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/mt7915/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/daf02c7e3c3dc82ffa925999597bd455cf799551
	https://git.kernel.org/stable/c/b334a245ff1d76b1e97af8cea648ea6798b9eb87
	https://git.kernel.org/stable/c/a43736cd12d82913102eb49cb56787a5553e028f