{
  "cveId": "CVE-2022-50552",
  "url": "https://patchblox.com/security/cve/CVE-2022-50552",
  "summary": "CVE-2022-50552 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50552, released October 7, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  blk-mq: use quiesced elevator switch when reinit...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  blk-mq: use quiesced elevator switch when reinitializing queues  The hctx\u0027s run_work may be racing with the elevator switch when reinitializing hardware queues. The queue is merely frozen in this context, but that only prevents requests from allocating and doesn\u0027t stop the hctx work from running. The work may get an elevator pointer that\u0027s being torn down, and can result in use-after-free errors and kernel panics (example below). Use the quiesced elevator switch instead, and make the previous one static since it is now only used locally.    nvme nvme0: resetting controller   nvme nvme0: 32/0/0 default/read/poll queues   BUG: kernel NULL pointer dereference, address: 0000000000000008   #PF: supervisor read access in kernel mode   #PF: error_code(0x0000) - not-present page   PGD 80000020c8861067 P4D 80000020c8861067 PUD 250f8c8067 PMD 0   Oops: 0000 [#1] SMP PTI   Workqueue: kblockd blk_mq_run_work_fn   RIP: 0010:kyber_has_work\u002B0x29/0x70  ...    Call Trace:    __blk_mq_do_dispatch_sched\u002B0x83/0x2b0    __blk_mq_sched_dispatch_requests\u002B0x12e/0x170    blk_mq_sched_dispatch_requests\u002B0x30/0x60    __blk_mq_run_hw_queue\u002B0x2b/0x50    process_one_work\u002B0x1ef/0x380    worker_thread\u002B0x2d/0x3e0",
  "published": "2025-10-07T16:15:41Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00214,
  "epssPercentile": 0.11865,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50552",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50552",
      "released": "2025-10-07T16:15:41Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50552",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50552",
      "released": "2025-10-07T16:15:41Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.3-1",
      "fix": "DEBIAN-CVE-2022-50552",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50552",
      "released": "2025-10-07T16:15:41Z"
    }
  ],
  "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"
  }
}