GHSA-RX99-HQ7R-6G3R

Vulnerability from github – Published: 2024-06-18 21:30 – Updated: 2026-05-12 12:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP

If one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided, taprio_parse_mqprio_opt() must validate it, or userspace can inject arbitrary data to the kernel, the second time taprio_change() is called.

First call (with valid attributes) sets dev->num_tc to a non zero value.

Second call (with arbitrary mqprio attributes) returns early from taprio_parse_mqprio_opt() and bad things can happen.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-36974"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-18T20:15:13Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP\n\nIf one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided,\ntaprio_parse_mqprio_opt() must validate it, or userspace\ncan inject arbitrary data to the kernel, the second time\ntaprio_change() is called.\n\nFirst call (with valid attributes) sets dev-\u003enum_tc\nto a non zero value.\n\nSecond call (with arbitrary mqprio attributes)\nreturns early from taprio_parse_mqprio_opt()\nand bad things can happen.",
  "id": "GHSA-rx99-hq7r-6g3r",
  "modified": "2026-05-12T12:31:54Z",
  "published": "2024-06-18T21:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36974"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6db4af09987cc5d5f0136bd46148b0e0460dae5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c37a27a35eadb59286c9092c49c241270c802ae2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6041e7124464ce7e896ee3f912897ce88a0c4ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3dde4c217f0c31ab0621912e682b57e677dd923"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f921a58ae20852d188f70842431ce6519c4fdc36"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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