CVE-2022-3533: Linux Kernel BPF usdt.c parse_usdt_arg memory leak

Severity: medium (CVSS 5.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-17 · updated 2026-06-17
Weakness: CWE-404

Description

A vulnerability was found in Linux Kernel. It has been rated as problematic. This issue affects the function parse_usdt_arg of the file tools/lib/bpf/usdt.c of the component BPF. The manipulation of the argument reg_name leads to memory leak. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211031.

Affected products

Linux kernel: before 6.2 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=0dc9254e03704c75f2ebc9cbef2ce4de83fba603
https://vuldb.com/?id.211031
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=0dc9254e03704c75f2ebc9cbef2ce4de83fba603
https://vuldb.com/?id.211031

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