CVE-2022-3028 Race condition in Linux kernel

High 7.0 Published 31 Aug 2022 Updated 14 Oct 2026

A local attacker can exploit a race condition in the Linux kernel XFRM subsystem to trigger out-of-bounds writes or leak kernel heap memory.

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-2022-3028?

CVE-2022-3028 is a high-severity vulnerability in Debian Debian Linux, published on 31 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak kernel heap memory by performing an out-of-bounds read and copying it into a socket.

Weakness: CWE-787, CWE-362, CWE-667

Which versions are affected by CVE-2022-3028?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2022-3028?

Apply the vendor's patch.

Is CVE-2022-3028 being exploited?

There is no known exploitation of CVE-2022-3028 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-10822, DEBIAN-CVE-2022-3028, GHSA-9xgv-7fjq-ccw2, UBUNTU-CVE-2022-3028.