Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-3646

CVE-2022-3646MEDIUM

Linux Kernel BPF segment.c nilfs_attach_log_writer memory leak

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  N  N  L    4.3   .0109   64.8     —

AFFECTED
  Product  Versions  Fixed
  Kernel   n/a –     —

TIMELINE
  Oct 21  Reserved by VulDB
  Oct 21  Published (CNA: VulDB)
  Oct 14  RESCORED — CVE-2022-3646 (Linux Kernel). CVSS 3.1 → 4.3 (NVD).

CWE-404, CWE-401 · CNA: VulDB · CVSS v3.1 · 5 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 21, 2022	Reserved	Reserved by VulDB
October 21, 2022	Published	Published (CNA: VulDB)
October 14, 2026	RESCORED	RESCORED — CVE-2022-3646 (Linux Kernel). CVSS 3.1 → 4.3 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Kernel	—	n/a	—

Weaknesses

CWE-404 · CWE-401

References (5)

https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d51a97063db4704a5ef6bc978dddab1636a306 [Mailing List, Patch, Vendor Advisory]
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html [Mailing List, Third Party Advisory]
https://vuldb.com/?id.211961 [Third Party Advisory]

Authoritative record: CVE-2022-3646 at cve.org

Vendors: linux

Weaknesses: CWE-404 · CWE-401

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-3646 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.