CVE-2022-50195 ARM: dts: qcom: replace gcc PXO with pxo_board fixed clock

Medium 5.5 Published Updated

A kernel panic occurs in the Linux kernel when drivers attempt to use an invalid PXO clock source, leading to a denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-50195?

CVE-2022-50195 is a medium-severity denial of service vulnerability in Linux kernel, published on 18 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Which versions are affected by CVE-2022-50195?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-50195?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-50195 being exploited?

There is no known exploitation of CVE-2022-50195 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-50195, GHSA-vpq5-x7gr-w285, ROOT-OS-UBUNTU-2204-CVE-2022-50195, UBUNTU-CVE-2022-50195.

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