linux-cve-announce - CVE-2024-56536: wifi: cw1200: Fix potential NULL dereference

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Message-ID: <2024122725-CVE-2024-56536-a7c4@gregkh>
Date: Fri, 27 Dec 2024 15:11:27 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56536: wifi: cw1200: Fix potential NULL dereference

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

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

wifi: cw1200: Fix potential NULL dereference

A recent refactoring was identified by static analysis to
cause a potential NULL dereference, fix this!

The Linux kernel CVE team has assigned CVE-2024-56536 to this issue.


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

	Issue introduced in 6.9 with commit 2719a9e7156c4b3983b43db467c1ff96801bda99 and fixed in 6.11.11 with commit 0ec90ac5f7bd9dd573bd5d964cbdc3beaa93a33e
	Issue introduced in 6.9 with commit 2719a9e7156c4b3983b43db467c1ff96801bda99 and fixed in 6.12.2 with commit 67c914f2d64b28409796a6b9036c131e93f8af6c
	Issue introduced in 6.9 with commit 2719a9e7156c4b3983b43db467c1ff96801bda99 and fixed in 6.13-rc1 with commit 2b94751626a6d49bbe42a19cc1503bd391016bd5

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-2024-56536
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/st/cw1200/cw1200_spi.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/0ec90ac5f7bd9dd573bd5d964cbdc3beaa93a33e
	https://git.kernel.org/stable/c/67c914f2d64b28409796a6b9036c131e93f8af6c
	https://git.kernel.org/stable/c/2b94751626a6d49bbe42a19cc1503bd391016bd5