{
  "cveId": "CVE-2025-39999",
  "url": "https://patchblox.com/security/cve/CVE-2025-39999",
  "summary": "CVE-2025-39999 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39999 (version 6.16.11-1), released October 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  blk-mq: fix blk_mq_tags double free while nr_req...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  blk-mq: fix blk_mq_tags double free while nr_requests grown  In the case user trigger tags grow by queue sysfs attribute nr_requests, hctx-\u003Esched_tags will be freed directly and replaced with a new allocated tags, see blk_mq_tag_update_depth().  The problem is that hctx-\u003Esched_tags is from elevator-\u003Eet-\u003Etags, while et-\u003Etags is still the freed tags, hence later elevator exit will try to free the tags again, causing kernel panic.  Fix this problem by replacing et-\u003Etags with new allocated tags as well.  Noted there are still some long term problems that will require some refactor to be fixed thoroughly[1].  [1] https://lore.kernel.org/all/20250815080216.410665-1-yukuai1@huaweicloud.com/",
  "published": "2025-10-15T08:15:38Z",
  "severity": "",
  "epss": 0.00197,
  "epssPercentile": 0.09436,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.16.11-1",
      "fix": "DEBIAN-CVE-2025-39999",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-39999",
      "released": "2025-10-15T08:15:38Z"
    }
  ],
  "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"
  }
}