CVE-2022-50525 iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()

Medium 5.5 Published Updated

A resource leak in the Linux kernel's FSL PAMU driver can lead to memory exhaustion and 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-2022-50525?

CVE-2022-50525 is a medium-severity denial of service vulnerability in Linux kernel, published on 7 Oct 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:

iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()

The fsl_pamu_probe() returns directly when create_csd() failed, leaving irq and memories unreleased. Fix by jumping to error if create_csd() returns error.

Weakness: CWE-401

Which versions are affected by CVE-2022-50525?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-50525?

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-2022-50525 being exploited?

There is no known exploitation of CVE-2022-50525 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-50525, GHSA-7xx4-26g9-3j94, UBUNTU-CVE-2022-50525.

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