{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-27431",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-27431"
  ],
  "published": "2024-05-17T12:02:33Z",
  "summary": "cpumap: Zero-initialise xdp_rxq_info struct before running XDP program",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpumap: Zero-initialise xdp_rxq_info struct before running XDP program\n\nWhen running an XDP program that is attached to a cpumap entry, we don't\ninitialise the xdp_rxq_info data structure being used in the xdp_buff\nthat backs the XDP program invocation. Tobias noticed that this leads to\nrandom values being returned as the xdp_md->rx_queue_index value for XDP\nprograms running in a cpumap.\n\nThis means we're basically returning the contents of the uninitialised\nmemory, which is bad. Fix this by zero-initialising the rxq data\nstructure before running the XDP program.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.1.63-1+rpt1",
        "1:6.1.73-1+rpt1",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-27431"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5f4e51abfbe6eb444fa91906a5cd083044278297"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b"
    },
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      "url": "https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95"
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      "url": "https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6"
    },
    {
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
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}