{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.10-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  futex: Drop CLONE_THREAD requirement for private default hash alloc  Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD.  This breaks the non-concurrency assumptions when doing the mm-\u003efutex_ref pcpu allocations, leading to bugs[0] when sharing the mm in other ways; ie:      BUG: KASAN: slab-use-after-free in futex_hash_put  ... where the +1 bias can end up on a percpu counter that mm-\u003efutex_ref no longer points at.  Loosen the check to cover any CLONE_VM clone, except vfork().  Excluding vfork keeps the existing paths untouched (no overhead), and we can't race in the first place: either the parent is suspended and the child runs alone, or mm-\u003efutex_ref is already allocated from an earlier CLONE_VM.",
  "id": "DEBIAN-CVE-2026-52973",
  "modified": "2026-09-14T16:47:34.147826455Z",
  "published": "2026-06-24T17:17:07.840Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-52973"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-52973"
  ]
}