CVE-2022-1516 Null dereference in Kernel

What is CVE-2022-1516?

CVE-2022-1516 is a medium-severity vulnerability in Debian Debian Linux, published on 5 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A NULL pointer dereference flaw was found in the Linux kernel’s X.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system.

Weakness: CWE-476, CWE-416

Which versions are affected by CVE-2022-1516?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2022-1516?

Apply the vendor's patch.

Is CVE-2022-1516 being exploited?

There is no known exploitation of CVE-2022-1516 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-1516, GHSA-rm62-4x72-vwwp, UBUNTU-CVE-2022-1516.