{
  "cveId": "CVE-2021-47179",
  "url": "https://patchblox.com/security/cve/CVE-2021-47179",
  "summary": "CVE-2021-47179 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47179, released March 25, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  NFSv4: Fix a NULL pointer dereference in pnfs_ma...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()  Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn\u0027t check if we have a value here before dereferencing it, causing an oops.  I\u0027m able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.",
  "published": "2024-03-25T10:15:09Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00676,
  "epssPercentile": 0.52485,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47179",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47179",
      "released": "2024-03-25T10:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47179",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47179",
      "released": "2024-03-25T10:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.14.6-1",
      "fix": "DEBIAN-CVE-2021-47179",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47179",
      "released": "2024-03-25T10:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}