{
  "cveId": "CVE-2026-93075",
  "url": "https://patchblox.com/security/cve/CVE-2026-93075",
  "summary": "CVE-2026-93075 is fixed in linux on 1 platform by DEBIAN-CVE-2026-93075 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  dax/fsdev: clear pgmap ops and owner on unbind...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dax/fsdev: clear pgmap ops and owner on unbind  fsdev_dax_probe() sets pgmap-\u003Eops = \u0026fsdev_pagemap_ops and pgmap-\u003Eowner = dev_dax, but nothing ever clears them. For a dynamic device the pgmap is devm-allocated and freed on unbind, so this is harmless. For a static device the pgmap is the shared, long-lived one owned by the dax bus (kill_dev_dax() only NULLs dev_dax-\u003Epgmap for the non-static case), and device.c\u0027s probe sets only pgmap-\u003Etype, never clearing ops/owner.  So after fsdev unbinds a static device the stale fsdev_pagemap_ops survives on the shared pgmap. If the device is then rebound to device_dax (MEMORY_DEVICE_GENERIC, which installs no -\u003Ememory_failure), or the fsdev_dax module is unloaded, a subsequent memory_failure on that pgmap dispatches through the stale -- and possibly freed -- handler.  Register a devm action that clears pgmap-\u003Eops and pgmap-\u003Eowner on unbind, symmetric with setting them at probe, so the pgmap carries no fsdev state once fsdev is detached.",
  "published": "2026-09-17T17:18:01Z",
  "severity": "",
  "epss": 0.00198,
  "epssPercentile": 0.09585,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-93075",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-93075",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}