linux-cve-announce - CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains

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Message-ID: <2026021431-CVE-2026-23187-018e@gregkh>
Date: Sat, 14 Feb 2026 17:28:44 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains

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

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

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

pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains

Fix out-of-range access of bc->domains in imx8m_blk_ctrl_remove().

The Linux kernel CVE team has assigned CVE-2026-23187 to this issue.


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

	Issue introduced in 5.16 with commit 2684ac05a8c4d2d5c49e6c11eb6206b30a284813 and fixed in 6.1.163 with commit 7842b5dfcac888ece025a2321257d74b2264b099
	Issue introduced in 5.16 with commit 2684ac05a8c4d2d5c49e6c11eb6206b30a284813 and fixed in 6.6.124 with commit 071159ff5c0bf2e5efff79501e23faf3775cbcd1
	Issue introduced in 5.16 with commit 2684ac05a8c4d2d5c49e6c11eb6206b30a284813 and fixed in 6.12.70 with commit 4390dcdabb5fca4647bf56a5a6b050bbdfa5760f
	Issue introduced in 5.16 with commit 2684ac05a8c4d2d5c49e6c11eb6206b30a284813 and fixed in 6.18.10 with commit eb54ce033b344b531b374496e68a2554b2b56b5a
	Issue introduced in 5.16 with commit 2684ac05a8c4d2d5c49e6c11eb6206b30a284813 and fixed in 6.19 with commit 6bd8b4a92a901fae1a422e6f914801063c345e8d

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-2026-23187
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/pmdomain/imx/imx8m-blk-ctrl.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/7842b5dfcac888ece025a2321257d74b2264b099
	https://git.kernel.org/stable/c/071159ff5c0bf2e5efff79501e23faf3775cbcd1
	https://git.kernel.org/stable/c/4390dcdabb5fca4647bf56a5a6b050bbdfa5760f
	https://git.kernel.org/stable/c/eb54ce033b344b531b374496e68a2554b2b56b5a
	https://git.kernel.org/stable/c/6bd8b4a92a901fae1a422e6f914801063c345e8d