{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.7-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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's 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:    Assertion `!xe_pm_runtime_suspended(xe)` failed!   WARNING at xe_device.c:1267 xe_device_assert_mem_access+0x11c/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++, 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]",
  "id": "DEBIAN-CVE-2026-98391",
  "modified": "2026-10-15T04:47:32.324069582Z",
  "published": "2026-10-14T14:17:49.980Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98391"
    }
  ],
  "upstream": [
    "CVE-2026-98391"
  ]
}