What is CVE-2022-3646?

CVE-2022-3646 is a low-severity vulnerability in Linux Kernel, classified under Improper Resource Shutdown or Release. CVSS score: 3.1/10. Published 2022-10-21.

How severe is CVE-2022-3646?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Linux Kernel

CVE-2022-3646

A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability.

Published 2022-10-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Weakness classification (CWE)

References

git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/ (Patch, Mailing List, Vendor Advisory)
vuldb.com/ (Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/11/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/12/msg00034.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-3646?: CVE-2022-3646 is a low-severity vulnerability in Linux Kernel, classified under Improper Resource Shutdown or Release. CVSS score: 3.1/10. Published 2022-10-21.
How severe is CVE-2022-3646?: Low severity. CVSS v3 base score is 3.1 out of 10.