linux-cve-announce - CVE-2023-53443: mfd: arizona: Use pm_runtime_resume_and

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Message-ID: <2025091859-CVE-2023-53443-6815@gregkh>
Date: Thu, 18 Sep 2025 18:04:34 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53443: mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak

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

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

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

mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak

In arizona_clk32k_enable(), we should use pm_runtime_resume_and_get()
as pm_runtime_get_sync() will increase the refcnt even when it
returns an error.

The Linux kernel CVE team has assigned CVE-2023-53443 to this issue.


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

	Fixed in 5.4.235 with commit 7195e642b49af60d4120fa1b45bd812ba528174f
	Fixed in 5.10.173 with commit 754e81ff44061dda68da0fd4ef51bd1aa9fbf2cf
	Fixed in 5.15.100 with commit 5a47bb71b1a94a279144fc3031d3c4591b38dd16
	Fixed in 6.1.18 with commit 9893771097b22a8743a446e45994a177795ca4da
	Fixed in 6.2.5 with commit dc9437e9889c3dacf1f320e3cf08da74127573fe
	Fixed in 6.3 with commit 4414a7ab80cebf715045e3c4d465feefbad21139

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-2023-53443
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/mfd/arizona-core.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/7195e642b49af60d4120fa1b45bd812ba528174f
	https://git.kernel.org/stable/c/754e81ff44061dda68da0fd4ef51bd1aa9fbf2cf
	https://git.kernel.org/stable/c/5a47bb71b1a94a279144fc3031d3c4591b38dd16
	https://git.kernel.org/stable/c/9893771097b22a8743a446e45994a177795ca4da
	https://git.kernel.org/stable/c/dc9437e9889c3dacf1f320e3cf08da74127573fe
	https://git.kernel.org/stable/c/4414a7ab80cebf715045e3c4d465feefbad21139