linux-cve-announce - CVE-2024-57989: wifi: mt76: mt7925: fix NULL deref check in mt7925_change_vif

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Message-ID: <2025022638-CVE-2024-57989-0a14@gregkh>
Date: Wed, 26 Feb 2025 18:05:48 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-57989: wifi: mt76: mt7925: fix NULL deref check in mt7925_change_vif_links

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

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

wifi: mt76: mt7925: fix NULL deref check in mt7925_change_vif_links

In mt7925_change_vif_links() devm_kzalloc() may return NULL but this
returned value is not checked.

The Linux kernel CVE team has assigned CVE-2024-57989 to this issue.


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

	Issue introduced in 6.11 with commit 69acd6d910b0c83842bd45c36224d4f8fe59d1d4 and fixed in 6.12.13 with commit 5872530c2862700070223a2c2ea85642bf2f8875
	Issue introduced in 6.11 with commit 69acd6d910b0c83842bd45c36224d4f8fe59d1d4 and fixed in 6.13.2 with commit 2f709fe755c16b811ba7339ae4c3ee2c72323d3d
	Issue introduced in 6.11 with commit 69acd6d910b0c83842bd45c36224d4f8fe59d1d4 and fixed in 6.14-rc1 with commit 5cd0bd815c8a48862a296df9b30e0ea0da14acd3

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-2024-57989
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/mt7925/main.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/5872530c2862700070223a2c2ea85642bf2f8875
	https://git.kernel.org/stable/c/2f709fe755c16b811ba7339ae4c3ee2c72323d3d
	https://git.kernel.org/stable/c/5cd0bd815c8a48862a296df9b30e0ea0da14acd3