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CVE-2022-47929

Status: ModifiedMedium (5.5)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Debian — Debian LinuxLinux — Linux Kernel

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2022-47929",
  "cveTags": [],
  "metrics": {
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2025-04-04T18:00:53.557625Z"
        }
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          "integrityImpact": "NONE",
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      "description": [
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    {
      "type": "Secondary",
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      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux anterior a 6.1.6, un error de desreferencia de puntero NULL en el subsistema de control de tráfico permite a un usuario sin privilegios desencadenar una denegación de servicio (caída del sistema) a través de una configuración de control de tráfico manipulada con comandos \"tc qdisc\" y \"tc class\". Esto afecta a qdisc_graft en net/sched/sch_api.c."
    }
  ],
  "lastModified": "2026-06-17T05:14:27.403",
  "configurations": [
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}