linux-cve-announce - CVE-2024-53043: mctp i2c: handle NULL header address

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2024111925-CVE-2024-53043-f450@gregkh>
Date: Tue, 19 Nov 2024 18:19:25 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53043: mctp i2c: handle NULL header address

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

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

mctp i2c: handle NULL header address

daddr can be NULL if there is no neighbour table entry present,
in that case the tx packet should be dropped.

saddr will usually be set by MCTP core, but check for NULL in case a
packet is transmitted by a different protocol.

The Linux kernel CVE team has assigned CVE-2024-53043 to this issue.


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

	Issue introduced in 5.18 with commit f5b8abf9fc3d and fixed in 6.1.116 with commit 470789331580
	Issue introduced in 5.18 with commit f5b8abf9fc3d and fixed in 6.6.60 with commit 8e886e44397b
	Issue introduced in 5.18 with commit f5b8abf9fc3d and fixed in 6.11.7 with commit 8c222adadc16
	Issue introduced in 5.18 with commit f5b8abf9fc3d and fixed in 6.12 with commit 01e215975fd8

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-2024-53043
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/mctp/mctp-i2c.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/4707893315802a0917231b94cb20cbe50ccbfe03
	https://git.kernel.org/stable/c/8e886e44397ba89f6e8da8471386112b4f5b67b7
	https://git.kernel.org/stable/c/8c222adadc1612e4f097688875962a28e3f5ab44
	https://git.kernel.org/stable/c/01e215975fd80af81b5b79f009d49ddd35976c13