linux-cve-announce - CVE-2024-48873: wifi: rtw89: check return value of ieee80211_probereq

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Message-ID: <2025011120-CVE-2024-48873-75a9@gregkh>
Date: Sat, 11 Jan 2025 13:25:24 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-48873: wifi: rtw89: check return value of ieee80211_probereq_get() for RNR

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

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

wifi: rtw89: check return value of ieee80211_probereq_get() for RNR

The return value of ieee80211_probereq_get() might be NULL, so check it
before using to avoid NULL pointer access.

Addresses-Coverity-ID: 1529805 ("Dereference null return value")

The Linux kernel CVE team has assigned CVE-2024-48873 to this issue.


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

	Fixed in 6.6.66 with commit 1a0f54cb3fea5d087440b2bae03202c445156a8d
	Fixed in 6.12.5 with commit 7296e5611adb2c619bd7bd3817ddde7ba865ef17
	Fixed in 6.13-rc1 with commit 630d5d8f2bf6b340202b6bc2c05d794bbd8e4c1c

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-2024-48873
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/realtek/rtw89/fw.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/1a0f54cb3fea5d087440b2bae03202c445156a8d
	https://git.kernel.org/stable/c/7296e5611adb2c619bd7bd3817ddde7ba865ef17
	https://git.kernel.org/stable/c/630d5d8f2bf6b340202b6bc2c05d794bbd8e4c1c