CVE-2022-49386 net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks

Medium 5.5 Published Updated

A refcount leak in the TI AM65 CPSW network 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-2022-49386?

CVE-2022-49386 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:

net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks

of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. am65_cpsw_init_cpts() and am65_cpsw_nuss_probe() don't release the refcount in error case. Add missing of_node_put() to avoid refcount leak.

Which versions are affected by CVE-2022-49386?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49386?

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-2022-49386 being exploited?

There is no known exploitation of CVE-2022-49386 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49386, GHSA-2cx7-5g5j-x648, UBUNTU-CVE-2022-49386.

Is CVE-2022-49386 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free