linux-cve-announce - CVE-2022-50621: dm: verity-loadpin: Only trust verity targets with enforcement

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Message-ID: <2025120852-CVE-2022-50621-be59@gregkh>
Date: Mon,  8 Dec 2025 10:16:58 +0900
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50621: dm: verity-loadpin: Only trust verity targets with enforcement

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

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

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

dm: verity-loadpin: Only trust verity targets with enforcement

Verity targets can be configured to ignore corrupted data blocks.
LoadPin must only trust verity targets that are configured to
perform some kind of enforcement when data corruption is detected,
like returning an error, restarting the system or triggering a
panic.

The Linux kernel CVE team has assigned CVE-2022-50621 to this issue.


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

	Issue introduced in 6.0 with commit b6c1c5745ccc68ac5d57c7ffb51ea25a86d0e97b and fixed in 6.0.3 with commit cb1f5b76e39d86c98722696bdf632987aa777b83
	Issue introduced in 6.0 with commit b6c1c5745ccc68ac5d57c7ffb51ea25a86d0e97b and fixed in 6.1 with commit 916ef6232cc4b84db7082b4c3d3cf1753d9462ba

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-2022-50621
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/md/dm-verity-loadpin.c
	drivers/md/dm-verity-target.c
	drivers/md/dm-verity.h


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/cb1f5b76e39d86c98722696bdf632987aa777b83
	https://git.kernel.org/stable/c/916ef6232cc4b84db7082b4c3d3cf1753d9462ba