{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-27437",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-27437"
  ],
  "published": "2024-04-05T08:25:01Z",
  "summary": "vfio/pci: Disable auto-enable of exclusive INTx IRQ",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Disable auto-enable of exclusive INTx IRQ\n\nCurrently for devices requiring masking at the irqchip for INTx, ie.\ndevices without DisINTx support, the IRQ is enabled in request_irq()\nand subsequently disabled as necessary to align with the masked status\nflag.  This presents a window where the interrupt could fire between\nthese events, resulting in the IRQ incrementing the disable depth twice.\nThis would be unrecoverable for a user since the masked flag prevents\nnested enables through vfio.\n\nInstead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx\nis never auto-enabled, then unmask as required.",
  "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": "6.1.84",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-27437"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}