{
  "cveId": "CVE-2025-39976",
  "url": "https://patchblox.com/security/cve/CVE-2025-39976",
  "summary": "CVE-2025-39976 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39976 (version 6.16.10-1), released October 15, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  futex: Use correct exit on failure from futex_ha...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  futex: Use correct exit on failure from futex_hash_allocate_default()  copy_process() uses the wrong error exit path from futex_hash_allocate_default(). After exiting from futex_hash_allocate_default(), neither tasklist_lock nor siglock has been acquired. The exit label bad_fork_core_free unlocks both of these locks which is wrong.  The next exit label, bad_fork_cancel_cgroup, is the correct exit. sched_cgroup_fork() did not allocate any resources that need to freed.  Use bad_fork_cancel_cgroup on error exit from futex_hash_allocate_default().",
  "published": "2025-10-15T08:15:35Z",
  "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": 0.00147,
  "epssPercentile": 0.03952,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.16.10-1",
      "fix": "DEBIAN-CVE-2025-39976",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-39976",
      "released": "2025-10-15T08:15:35Z"
    }
  ],
  "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"
  }
}