linux-cve-announce - CVE-2025-22043: ksmbd: add bounds check for durable handle context

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Message-ID: <2025041600-CVE-2025-22043-a8b9@gregkh>
Date: Wed, 16 Apr 2025 16:12:14 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2025-22043: ksmbd: add bounds check for durable handle context

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

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

ksmbd: add bounds check for durable handle context

Add missing bounds check for durable handle context.

The Linux kernel CVE team has assigned CVE-2025-22043 to this issue.


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

	Fixed in 6.6.87 with commit 8d4848c45943c9cf5e86142fd7347efa97f497db
	Fixed in 6.12.23 with commit 29b946714d6aa77de54c71243bba39469ac43ef2
	Fixed in 6.13.11 with commit 1107b9ed92194603593c51829a3887812ae9e806
	Fixed in 6.14.2 with commit f0db3d9d416e332a0d6f045a1509539d3a4cd898
	Fixed in 6.15-rc1 with commit 542027e123fc0bfd61dd59e21ae0ee4ef2101b29

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-2025-22043
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:
	fs/smb/server/smb2pdu.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/8d4848c45943c9cf5e86142fd7347efa97f497db
	https://git.kernel.org/stable/c/29b946714d6aa77de54c71243bba39469ac43ef2
	https://git.kernel.org/stable/c/1107b9ed92194603593c51829a3887812ae9e806
	https://git.kernel.org/stable/c/f0db3d9d416e332a0d6f045a1509539d3a4cd898
	https://git.kernel.org/stable/c/542027e123fc0bfd61dd59e21ae0ee4ef2101b29