CVE-2026-23116: pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu

CVE-2026-23116: pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu

[Greg Kroah-Hartman]

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

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

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

pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu

For i.MX8MQ platform, the ADB in the VPUMIX domain has no separate reset
and clock enable bits, but is ungated and reset together with the VPUs.
So we can't reset G1 or G2 separately, it may led to the system hang.
Remove rst_mask and clk_mask of imx8mq_vpu_blk_ctl_domain_data.
Let imx8mq_vpu_power_notifier() do really vpu reset.

The Linux kernel CVE team has assigned CVE-2026-23116 to this issue.


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

	Issue introduced in 5.18 with commit 608d7c325e855cb4a853afef3cd9f0df594bd12d and fixed in 6.1.162 with commit 8859e336d233e61a4c40d40dc6a9f21e8b9b719c
	Issue introduced in 5.18 with commit 608d7c325e855cb4a853afef3cd9f0df594bd12d and fixed in 6.6.122 with commit cad7003d951e8899db58ee2fef211586af726f09
	Issue introduced in 5.18 with commit 608d7c325e855cb4a853afef3cd9f0df594bd12d and fixed in 6.12.68 with commit 5c56a6f4b5a4f87c094c92a30fa17e28e37ec2ab
	Issue introduced in 5.18 with commit 608d7c325e855cb4a853afef3cd9f0df594bd12d and fixed in 6.18.8 with commit fd675de6bddf7e9bdf42ae3929d4c27ba6d1ef76
	Issue introduced in 5.18 with commit 608d7c325e855cb4a853afef3cd9f0df594bd12d and fixed in 6.19 with commit 3de49966499634454fd59e0e6fecd50baab7febd

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-2026-23116
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/8859e336d233e61a4c40d40dc6a9f21e8b9b719c
	https://git.kernel.org/stable/c/cad7003d951e8899db58ee2fef211586af726f09
	https://git.kernel.org/stable/c/5c56a6f4b5a4f87c094c92a30fa17e28e37ec2ab
	https://git.kernel.org/stable/c/fd675de6bddf7e9bdf42ae3929d4c27ba6d1ef76
	https://git.kernel.org/stable/c/3de49966499634454fd59e0e6fecd50baab7febd