CVE-2022-50105 powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader

Medium 5.5 Published Updated

A refcount leak in the Linux kernel's powerpc SPU filesystem can lead to resource 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-2022-50105?

CVE-2022-50105 is a medium-severity memory corruption 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:

powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader

of_find_node_by_path() returns remote device nodepointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.

Which versions are affected by CVE-2022-50105?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-50105?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-50105 being exploited?

There is no known exploitation of CVE-2022-50105 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-50105, GHSA-c69w-8vxq-ff5h, UBUNTU-CVE-2022-50105.

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