linux-cve-announce - CVE-2022-50729: ksmbd: Fix resource leak in ksmbd_session_rpc

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Message-ID: <2025122419-CVE-2022-50729-f996@gregkh>
Date: Wed, 24 Dec 2025 13:26:28 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50729: ksmbd: Fix resource leak in ksmbd_session_rpc_open()

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

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

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

ksmbd: Fix resource leak in ksmbd_session_rpc_open()

When ksmbd_rpc_open() fails then it must call ksmbd_rpc_id_free() to
undo the result of ksmbd_ipc_id_alloc().

The Linux kernel CVE team has assigned CVE-2022-50729 to this issue.


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

	Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 5.15.86 with commit 31c1b5d3000cdff70b98d5af045271e09079bec1
	Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.0.16 with commit 9cb49b95c05df09b369d1ec1f378b5c92109433c
	Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.1.2 with commit f9ed133381eba883c5e0059063d5b3ca7cac6d41
	Issue introduced in 5.15 with commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 and fixed in 6.2 with commit bc044414fa0326a4e5c3c509c00b1fcaf621b5f4

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-2022-50729
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/ksmbd/mgmt/user_session.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/31c1b5d3000cdff70b98d5af045271e09079bec1
	https://git.kernel.org/stable/c/9cb49b95c05df09b369d1ec1f378b5c92109433c
	https://git.kernel.org/stable/c/f9ed133381eba883c5e0059063d5b3ca7cac6d41
	https://git.kernel.org/stable/c/bc044414fa0326a4e5c3c509c00b1fcaf621b5f4