linux-cve-announce - CVE-2025-71220: smb/server: call ksmbd_session_rpc_close() on error path in create_smb2

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: <2026021425-CVE-2025-71220-162f@gregkh>
Date: Sat, 14 Feb 2026 17:28:26 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-71220: smb/server: call ksmbd_session_rpc_close() on error path in create_smb2_pipe()

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

smb/server: call ksmbd_session_rpc_close() on error path in create_smb2_pipe()

When ksmbd_iov_pin_rsp() fails, we should call ksmbd_session_rpc_close().

The Linux kernel CVE team has assigned CVE-2025-71220 to this issue.


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

	Fixed in 5.15.200 with commit a2c68e256fb7a4ac34154c6e865a1389acca839f
	Fixed in 6.1.163 with commit 2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29
	Fixed in 6.6.124 with commit 04dd114b682a4ccaeba2c2bad049c8b50ce740d8
	Fixed in 6.12.70 with commit ac18761b530b5dd40f59af8a25902282e5512854
	Fixed in 6.18.10 with commit fdda836fcee6fdbcccc24e3679097efb583f581f
	Fixed in 6.19 with commit 7c28f8eef5ac5312794d8a52918076dcd787e53b

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-2025-71220
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/a2c68e256fb7a4ac34154c6e865a1389acca839f
	https://git.kernel.org/stable/c/2b7b4df87fe6f2db6ee45f475de6b37b8b8e5d29
	https://git.kernel.org/stable/c/04dd114b682a4ccaeba2c2bad049c8b50ce740d8
	https://git.kernel.org/stable/c/ac18761b530b5dd40f59af8a25902282e5512854
	https://git.kernel.org/stable/c/fdda836fcee6fdbcccc24e3679097efb583f581f
	https://git.kernel.org/stable/c/7c28f8eef5ac5312794d8a52918076dcd787e53b