linux-cve-announce - CVE-2024-53074: wifi: iwlwifi: mvm: don't leak a link on AP removal

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Message-ID: <2024111924-CVE-2024-53074-e49b@gregkh>
Date: Tue, 19 Nov 2024 18:31:25 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53074: wifi: iwlwifi: mvm: don't leak a link on AP removal

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

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

wifi: iwlwifi: mvm: don't leak a link on AP removal

Release the link mapping resource in AP removal. This impacted devices
that do not support the MLD API (9260 and down).
On those devices, we couldn't start the AP again after the AP has been
already started and stopped.

The Linux kernel CVE team has assigned CVE-2024-53074 to this issue.


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

	Issue introduced in 6.9 with commit a8b5d4809b50 and fixed in 6.11.7 with commit 70ddf9ce1894
	Issue introduced in 6.9 with commit a8b5d4809b50 and fixed in 6.12 with commit 3ed092997a00

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-2024-53074
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/intel/iwlwifi/mvm/mac80211.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/70ddf9ce1894c48dbbf10b0de51a95e4fb3dd376
	https://git.kernel.org/stable/c/3ed092997a004d68a3a5b0eeb94e71b69839d0f7