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-2022-47929

CVE-2022-47929MEDIUM

n/a n/a — In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger …

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0101   62.5     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Dec 22  Reserved by mitre
  Jan 17  Published (CNA: mitre)
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-47929. Public exploit reference added.

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

Description

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 22, 2022	Reserved	Reserved by mitre
January 17, 2023	Published	Published (CNA: mitre)
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-47929. Public exploit reference added.

Affected

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

Weaknesses

CWE-476

References (9)

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 [Mailing List, Patch, Vendor Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 [Patch, Vendor Advisory]
https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html [Third Party Advisory]
https://www.debian.org/security/2023/dsa-5324 [Third Party Advisory]
https://www.spinics.net/lists/netdev/msg555705.html [Exploit, Mailing List, Third Party Advisory]

Authoritative record: CVE-2022-47929 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-2022-47929 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.