{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-40938",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-40938"
  ],
  "published": "2024-07-12T12:27:31Z",
  "summary": "landlock: Fix d_parent walk",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlandlock: Fix d_parent walk\n\nThe WARN_ON_ONCE() in collect_domain_accesses() can be triggered when\ntrying to link a root mount point.  This cannot work in practice because\nthis directory is mounted, but the VFS check is done after the call to\nsecurity_path_link().\n\nDo not use source directory's d_parent when the source directory is the\nmount point.\n\n[mic: Fix commit message]",
  "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": "6.1.95",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-40938"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b6e5e696435832b33e40775f060ef5c95f4fda1f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cc30d05b34f9a087a6928d09b131f7b491e9ab11"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/88da52ccd66e65f2e63a6c35c9dff55d448ef4dc"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}