{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2024-53167",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-53167",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-12-27T13:49:13.201Z",
    "updatedAt": "2026-10-15T21:41:46.787Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "nfs/blocklayout: Don't attempt unregister for invalid block device",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs/blocklayout: Don't attempt unregister for invalid block device\n\nSince commit d869da91cccb (\"nfs/blocklayout: Fix premature PR key\nunregistration\") an unmount of a pNFS SCSI layout-enabled NFS may\ndereference a NULL block_device in:\n\n  bl_unregister_scsi+0x16/0xe0 [blocklayoutdriver]\n  bl_free_device+0x70/0x80 [blocklayoutdriver]\n  bl_free_deviceid_node+0x12/0x30 [blocklayoutdriver]\n  nfs4_put_deviceid_node+0x60/0xc0 [nfsv4]\n  nfs4_deviceid_purge_client+0x132/0x190 [nfsv4]\n  unset_pnfs_layoutdriver+0x59/0x60 [nfsv4]\n  nfs4_destroy_server+0x36/0x70 [nfsv4]\n  nfs_free_server+0x23/0xe0 [nfs]\n  deactivate_locked_super+0x30/0xb0\n  cleanup_mnt+0xba/0x150\n  task_work_run+0x59/0x90\n  syscall_exit_to_user_mode+0x217/0x220\n  do_syscall_64+0x8e/0x160\n\nThis happens because even though we were able to create the\nnfs4_deviceid_node, the lookup for the device was unable to attach the\nblock device to the pnfs_block_dev.\n\nIf we never found a block device to register, we can avoid this case with\nthe PNFS_BDEV_REGISTERED flag.  Move the deref behind the test for the\nflag.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3402704a424f34bbcca7f4a4503859357f422217"
            },
            {
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "faa4bacfaeed827a4ca8cb8529a3ce65a9e8ef46"
            },
            {
              "version": "d869da91cccb90320e101a2758f1e2b3803ade5c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3a4ce14d9a6b868e0787e4582420b721c04ee41e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.11"
            },
            {
              "version": "6.11.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}