CVE-2022-3534 Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free

Medium 5.1 Published 17 Oct 2022 Updated 14 Oct 2026

A use-after-free flaw in the Linux Kernel's libbpf component allows local attackers to potentially execute arbitrary code or escalate privileges.

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-2022-3534?

CVE-2022-3534 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 17 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and 6.2 is sufficient to resolve this issue. The identifier of the patch is c61650b869e0b6fb0c0a28ed42d928eea969afc8/fbe08093fb2334549859829ef81d42570812597d/8c64a8e76eb85d422af5ec60ccbf26e3ead8c333/a733bf10198eb5bb927890940de8ab457491ed3b/93c660ca40b5d2f7c1b1626e955a8e9fa30e0749. You should upgrade the affected component.

Weakness: CWE-416, CWE-119

Which versions are affected by CVE-2022-3534?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2022-3534?

Upgrade to a fixed version.

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-2022-3534 being exploited?

There is no known exploitation of CVE-2022-3534 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-3534, GHSA-gfpq-px23-jj9f, UBUNTU-CVE-2022-3534.