{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-46774",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-46774"
  ],
  "published": "2024-09-18T07:17:19Z",
  "summary": "powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()\n\nSmatch warns:\n\n  arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential\n  spectre issue 'args.args' [r] (local cap)\n\nThe 'nargs' and 'nret' locals come directly from a user-supplied\nbuffer and are used as indexes into a small stack-based array and as\ninputs to copy_to_user() after they are subject to bounds checks.\n\nUse array_index_nospec() after the bounds checks to clamp these values\nfor speculative execution.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.135",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-46774"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d2834ff1d9641a8695a09ea79cd901c7b6d4d05f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b137af795399d8b657bad1646c18561530f35ed1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1f1feff02e9da0dd0cdb195c428c42b5f9b6c771"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}