linux-cve-announce - CVE-2022-50195: ARM: dts: qcom: replace gcc PXO with pxo

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Message-ID: <2025061838-CVE-2022-50195-c685@gregkh>
Date: Wed, 18 Jun 2025 13:04:20 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2022-50195: ARM: dts: qcom: replace gcc PXO with pxo_board fixed clock

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

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

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

ARM: dts: qcom: replace gcc PXO with pxo_board fixed clock

Replace gcc PXO phandle to pxo_board fixed clock declared in the dts.
gcc driver doesn't provide PXO_SRC as it's a fixed-clock. This cause a
kernel panic if any driver actually try to use it.

The Linux kernel CVE team has assigned CVE-2022-50195 to this issue.


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

	Issue introduced in 5.14 with commit 40cf5c884a965554a424797afb424ffbca4c24b3 and fixed in 5.19.2 with commit 0a4fa4ce697987b71eafce17bb198961ed9070bd
	Issue introduced in 5.14 with commit 40cf5c884a965554a424797afb424ffbca4c24b3 and fixed in 6.0 with commit eb9e93937756a05787977875830c0dc482cb57e0

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-2022-50195
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:
	arch/arm/boot/dts/qcom-ipq8064.dtsi


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/0a4fa4ce697987b71eafce17bb198961ed9070bd
	https://git.kernel.org/stable/c/eb9e93937756a05787977875830c0dc482cb57e0