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Message-ID: <2024051707-CVE-2024-35789-52e5@gregkh>
Date: Fri, 17 May 2024 14:25:10 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-35789: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes

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

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

wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes

When moving a station out of a VLAN and deleting the VLAN afterwards, the
fast_rx entry still holds a pointer to the VLAN's netdev, which can cause
use-after-free bugs. Fix this by immediately calling ieee80211_check_fast_rx
after the VLAN change.

The Linux kernel CVE team has assigned CVE-2024-35789 to this issue.


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

	Fixed in 4.19.312 with commit ea9a0cfc07a7
	Fixed in 5.4.274 with commit be1dd9254fc1
	Fixed in 5.10.215 with commit e8b067c4058c
	Fixed in 5.15.154 with commit c8bddbd91bc8
	Fixed in 6.1.84 with commit 7eeabcea79b6
	Fixed in 6.6.24 with commit 6b948b54c8bd
	Fixed in 6.7.12 with commit 2884a50f5231
	Fixed in 6.8.3 with commit e8678551c024
	Fixed in 6.9 with commit 4f2bdb3c5e31

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-2024-35789
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:
	net/mac80211/cfg.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/ea9a0cfc07a7d3601cc680718d9cff0d6927a921
	https://git.kernel.org/stable/c/be1dd9254fc115321d6fbee042026d42afc8d931
	https://git.kernel.org/stable/c/e8b067c4058c0121ac8ca71559df8e2e08ff1a7e
	https://git.kernel.org/stable/c/c8bddbd91bc8e42c961a5e2cec20ab879f21100f
	https://git.kernel.org/stable/c/7eeabcea79b67cc29563e6a9a5c81f9e2c664d5b
	https://git.kernel.org/stable/c/6b948b54c8bd620725e0c906e44b10c0b13087a7
	https://git.kernel.org/stable/c/2884a50f52313a7a911de3afcad065ddbb3d78fc
	https://git.kernel.org/stable/c/e8678551c0243f799b4859448781cbec1bd6f1cb
	https://git.kernel.org/stable/c/4f2bdb3c5e3189297e156b3ff84b140423d64685

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