CVE-2026-53299 net: airoha: Move ndesc initialization at end of airoha_qdma_init_tx()

Medium 5.5 Published Updated

A NULL pointer dereference in the Linux kernel Airoha network driver can cause a system crash if queue entry allocation fails.

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-2026-53299?

CVE-2026-53299 is a medium-severity vulnerability in Linux kernel, published on 26 Jun 2026. 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: airoha: Move ndesc initialization at end of airoha_qdma_init_tx()

If queue entry list allocation fails in airoha_qdma_init_tx_queue routine, airoha_qdma_cleanup_tx_queue() will trigger a NULL pointer dereference accessing the queue entry array. The issue is due to the early ndesc initialization in airoha_qdma_init_tx_queue(). Fix the issue moving ndesc initialization at end of airoha_qdma_init_tx routine.

Weakness: CWE-476

Which versions are affected by CVE-2026-53299?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-53299?

Apply the vendor's patch.

Is CVE-2026-53299 being exploited?

There is no known exploitation of CVE-2026-53299 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-53299, GHSA-cpq4-x345-qfwq, UBUNTU-CVE-2026-53299.

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