{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.2.6-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  fuse: publish io-uring queues with release semantics  fuse_uring_create_queue() initializes a fuse_ring_queue and then publishes the pointer into ring-\u003equeues[qid] with WRITE_ONCE() under the fch-\u003elock. There are several readers that may concurrently be fetching that pointer locklessly and then deferencing it.  WRITE_ONCE() doesn't ensure ordering of the queue's field initialization before the ring-\u003equeues[qid] pointer assignment. The queue must be published with smp_store_release() so the field initialization is guaranteed to happen before.  Readers in paths where the read may happen concurrently with the store need to use READ_ONCE() because any race involving a plain access is undefined.",
  "id": "DEBIAN-CVE-2026-80858",
  "modified": "2026-09-23T03:47:34.372733032Z",
  "published": "2026-09-04T16:18:14.940Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-80858"
    }
  ],
  "upstream": [
    "CVE-2026-80858"
  ]
}