{
  "cveId": "CVE-2026-53326",
  "url": "https://patchblox.com/security/cve/CVE-2026-53326",
  "summary": "CVE-2026-53326 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53326 (version 7.0.13-1), released July 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  debugobjects: Don\u0027t call fill_pool() in early bo...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  debugobjects: Don\u0027t call fill_pool() in early boot hardirq context  When booting a debug PREEMPT_RT kernel on an ARM64 system, a \u0022inconsistent {HARDIRQ-ON-W} -\u003E {IN-HARDIRQ-W} usage\u0022 lockdep warning message was reported to the console.  During early boot, interrupts are enabled before the scheduler is enabled. In this window (before SYSTEM_SCHEDULING is set) interrupts can fire and in the hard interrupt context handler attempt to fill the pool  This can lead to a deadlock when the interrupt occurred when the interrupt hits a region which holds a lock that is required to be taken in the allocation path.  Add a new can_fill_pool() helper and reorder the exception rule and forbid this scenario by excluding allocations from hard interrupt context.",
  "published": "2026-07-01T14:16:40Z",
  "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": 0.00125,
  "epssPercentile": 0.02255,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.13-1",
      "fix": "DEBIAN-CVE-2026-53326",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53326",
      "released": "2026-07-02T14:46:03Z"
    }
  ],
  "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"
  }
}