CVE-2022-42722 Null dereference in n/a

Medium 5.5 Published 13 Oct 2022 Updated 14 Oct 2026

Local attackers can cause a denial of service in the Linux kernel by injecting WLAN frames that trigger a NULL pointer dereference in the mac80211 stack.

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-2022-42722?

CVE-2022-42722 is a medium-severity vulnerability in Debian Debian Linux, published on 13 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel 5.8 through 5.19.x before 5.19.16, local attackers able to inject WLAN frames into the mac80211 stack could cause a NULL pointer dereference denial-of-service attack against the beacon protection of P2P devices.

Weakness: CWE-476

Which versions are affected by CVE-2022-42722?

It affects 3 products.

Linux distribution packages (2)

`kernel-livepatch-SLE15-SP3_Update_24` SUSE:Linux Enterprise Live Patching 15 SP3	All versions	`4-150300.2.1`
`kernel-livepatch-SLE15-SP4_Update_3` SUSE:Linux Enterprise Live Patching 15 SP4	All versions	`4-150400.2.1`

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

How do I fix CVE-2022-42722?

Apply the vendor's patch.

Is CVE-2022-42722 being exploited?

There is no known exploitation of CVE-2022-42722 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2022-42722, AZL-11118, DEBIAN-CVE-2022-42722, GHSA-wfvm-966j-jch4, SUSE-SU-2022:3976-1, SUSE-SU-2022:4037-1 and 1 more.