{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-35843",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-35843"
  ],
  "published": "2024-05-17T14:40:27Z",
  "summary": "iommu/vt-d: Use device rbtree in iopf reporting path",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Use device rbtree in iopf reporting path\n\nThe existing I/O page fault handler currently locates the PCI device by\ncalling pci_get_domain_bus_and_slot(). This function searches the list\nof all PCI devices until the desired device is found. To improve lookup\nefficiency, replace it with device_rbtree_find() to search the device\nwithin the probed device rbtree.\n\nThe I/O page fault is initiated by the device, which does not have any\nsynchronization mechanism with the software to ensure that the device\nstays in the probed device tree. Theoretically, a device could be released\nby the IOMMU subsystem after device_rbtree_find() and before\niopf_get_dev_fault_param(), which would cause a use-after-free problem.\n\nAdd a mutex to synchronize the I/O page fault reporting path and the IOMMU\nrelease device path. This lock doesn't introduce any performance overhead,\nas the conflict between I/O page fault reporting and device releasing is\nvery rare.",
  "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": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-35843"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3d39238991e745c5df85785604f037f35d9d1b15"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/def054b01a867822254e1dda13d587f5c7a99e2a"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
  }
}