{
  "cveId": "CVE-2026-98391",
  "url": "https://patchblox.com/security/cve/CVE-2026-98391",
  "summary": "CVE-2026-98391 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98391 (version 7.2.7-1), released October 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/xe: Guard page-fault worker with runtime PM...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/xe: Guard page-fault worker with runtime PM check  During VM teardown, the VM\u0027s runtime PM reference is dropped asynchronously, allowing the device to autosuspend while stale page faults belonging to the now-dead VM are still queued. When the page-fault worker later tries to ack one of these, it calls into guc_ct_send_locked() on an already-suspended device, tripping:  \u00A0 Assertion \u0060!xe_pm_runtime_suspended(xe)\u0060 failed! \u00A0 WARNING at xe_device.c:1267 xe_device_assert_mem_access\u002B0x11c/0x140 [xe]  A live VM/exec queue always holds a PM reference while it has outstanding work, so if the device is suspended at ack time, the owning context is already gone and the fault is stale.  Take a runtime PM reference across the entire pagefault queue worker to safely deliver acks for torn-down VMs.  v3:  - Move PM ref to the generic xe_pagefault_queue_work using    guard(xe_pm_runtime)(xe) instead of tracking it in the GuC    backend(Matt Brost).  v2:  - Hold PM ref across the entire batch (begin/end) instead of per-ack.    This prevents the device from autosuspending mid-batch, which would    leave write_only acks written but the end flush skipped, and skip    counter\u002B\u002B, desyncing the cadence check.(Himal)  - Add a comment explaining stale faults.(Himal)  (cherry picked from commit fcc2431d2213dc4d04250c4f1ae87d9c3ae0d455) [Rodrigo: Added xe_device struct for compatibility while cherry-picking]",
  "published": "2026-10-14T14:17:49Z",
  "severity": "",
  "epss": 0.00189,
  "epssPercentile": 0.08622,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.7-1",
      "fix": "DEBIAN-CVE-2026-98391",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98391",
      "released": "2026-10-16T15:52:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}