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-2023-3212

CVE-2023-3212MEDIUM

n/a Linux kernel (gfs2 file system) — A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   H   N  U  N  N  H    4.4   .0028   18.9     —

AFFECTED
  Product                          Versions                   Fixed
  Linux kernel (gfs2 file system)  Fixed in kernel 6.4-rc2 –  —

TIMELINE
  Jun 12  Reserved by redhat
  Jun 23  Published (CNA: redhat)
  Oct 14  ENRICHED — CVE-2023-3212 (Linux kernel (gfs2 file system)). Received CVSS 4.4 and CPE data from NVD.

CWE-476 · CNA: redhat · CVSS v3.1 · 9 references · NVD status: Modified

Description

A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 12, 2023	Reserved	Reserved by redhat
June 23, 2023	Published	Published (CNA: redhat)
October 14, 2026	ENRICHED	ENRICHED — CVE-2023-3212 (Linux kernel (gfs2 file system)). Received CVSS 4.4 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	Linux kernel (gfs2 file system)	—	Fixed in kernel 6.4-rc2	—

Weaknesses

CWE-476

References (9)

https://bugzilla.redhat.com/show_bug.cgi?id=2214348 [Issue Tracking, Patch, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-806742.html
https://github.com/torvalds/linux/commit/504a10d9e46bc37b23d0a1ae2f28973c8516e636 [Patch]
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://security.netapp.com/advisory/ntap-20230929-0005/ [Third Party Advisory]
https://www.debian.org/security/2023/dsa-5448 [Third Party Advisory]
https://www.debian.org/security/2023/dsa-5480 [Third Party Advisory]

Authoritative record: CVE-2023-3212 at cve.org

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-3212 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.