CVE-2022-49324 mips: cpc: Fix refcount leak in mips_cpc_default_phys_base

Medium 5.5 Published Updated

A missing reference count release in the MIPS CPC driver 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-2022-49324?

CVE-2022-49324 is a medium-severity memory corruption vulnerability in Linux kernel, published on 26 Feb 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:

mips: cpc: Fix refcount leak in mips_cpc_default_phys_base

Add the missing of_node_put() to release the refcount incremented by of_find_compatible_node().

Which versions are affected by CVE-2022-49324?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49324?

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-2022-49324 being exploited?

There is no known exploitation of CVE-2022-49324 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49324, GHSA-cmp4-vjg9-36mg, UBUNTU-CVE-2022-49324.

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