{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  udp: Unhash auto-bound connected sk from 4-tuple hash table when disconnected.  Let's say we bind() an UDP socket to the wildcard address with a non-zero port, connect() it to an address, and disconnect it from the address.  bind() sets SOCK_BINDPORT_LOCK on sk-\u003esk_userlocks (but not SOCK_BINDADDR_LOCK), and connect() calls udp_lib_hash4() to put the socket into the 4-tuple hash table.  Then, __udp_disconnect() calls sk-\u003esk_prot-\u003erehash(sk).  It computes a new hash based on the wildcard address and moves the socket to a new slot in the 4-tuple hash table, leaving a garbage in the chain that no packet hits.  Let's remove such a socket from 4-tuple hash table when disconnected.  Note that udp_sk(sk)-\u003eudp_portaddr_hash needs to be udpated after udp_hash4_dec(hslot2) in udp_unhash4().",
  "id": "DEBIAN-CVE-2026-23331",
  "modified": "2026-04-28T19:51:17.554890525Z",
  "published": "2026-03-25T11:16:30.510Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-23331"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-23331"
  ]
}