{
  "cveId": "CVE-2026-98994",
  "url": "https://patchblox.com/security/cve/CVE-2026-98994",
  "summary": "CVE-2026-98994 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98994 (version 7.2.11-1), released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  statmount: read the parent of an unmounted mount...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  statmount: read the parent of an unmounted mount under mount_lock  statmount_mnt_basic() reads the ids of the parent through m-\u003Emnt_parent with namespace_sem held for reading. That\u0027s fine for a mount that is in a namespace. Everything above it is pinned by that namespace.  STATMOUNT_BY_FD also accepts a file descriptor on a mount that has been unmounted on purpose and that only the file descriptor keeps alive. If that mount stayed attached to its parent when it was unmounted the parent is unmounted as well and nothing pins it for the child.  The final mntput() unmounts the children under mount_lock alone and frees the parent afterwards. Concurrently, statmount_mnt_basic() reads m-\u003Emnt_parent twice while that can happen and can easily dereference a mount that\u0027s already gone.  Read the parent of an unmounted mount under mount_lock. The parent can\u0027t be put while it is held and both ids come from the same mount. A mounted mount\u0027s parent is pinned by the namespace and a mount can\u0027t leave its namespace while namespace_sem is held, so the common case takes no global lock.",
  "published": "2026-10-23T13:17:21Z",
  "severity": "",
  "epss": 0.00156,
  "epssPercentile": 0.04752,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.11-1",
      "fix": "DEBIAN-CVE-2026-98994",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98994",
      "released": "2026-10-24T13:25:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}