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Vulnerabilities

Vulnerability · CVE-2022-47929

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 cr…

Published Jan 17, 2023 · catalog updated Oct 14, 2026 · Arch Linux Arch Linux

Check if you run it

No confirmed exploitation is on record for CVE-2022-47929. EPSS is 1.01%. Act only if a listed version of Arch Linux Arch Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.01%
Remediation
Advisory link
Affected products
cpe debian/debian linux · cpe linux/linux kernel

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe debian/debian linux11.0
  • cpe linux/linux kernelversion unspecified

How to fix CVE-2022-47929

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-47929. EPSS is 1.01%. Act only if a listed version of Arch Linux Arch Linux is installed.

Which versions are affected?

Compare what you have installed with debian/debian linux 11.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 1.01%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 17, 2023 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Sources

  • Arch Linux SecurityVendor advisoryCVE-2022-47929

    CVE-2022-47929 is named on the public Arch Linux Security page.

    security.archlinux.org
  • CVE.orgVulnerability recordCVE-2022-47929

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-47929

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2022-47929

    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 aff

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.