CVE-2022-48783 net: dsa: lantiq_gswip: fix use after free in gswip_remove()

High 7.8 Published Updated

A use-after-free vulnerability in the Lantiq GSWIP network driver allows attackers to cause denial of service or execute arbitrary code.

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-2022-48783?

CVE-2022-48783 is a high-severity use after free vulnerability in Linux kernel, published on 16 Jul 2024. 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: dsa: lantiq_gswip: fix use after free in gswip_remove()

of_node_put(priv->ds->slave_mii_bus->dev.of_node) should be done before mdiobus_free(priv->ds->slave_mii_bus).

Weakness: CWE-416

Which versions are affected by CVE-2022-48783?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-48783?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-48783 being exploited?

There is no known exploitation of CVE-2022-48783 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-48783, GHSA-pm35-jc42-34cq, UBUNTU-CVE-2022-48783.

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