{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: ISO: fix race of kfree vs kref_get_unless_zero  hci_conn::iso_data is accessed and modified without lock or RCU. This leads to a race      [Task hdev-\u003eworkqueue]                 \t[Task 2]     iso_recv                                    iso_conn_put(conn)       conn = LOAD hcon-\u003eiso_data                  iso_conn_free(conn)       iso_conn_hold_unless_zero(conn)               hcon-\u003eiso_data = NULL                                                     kfree(conn)         kref_get_unless_zero(\u0026conn-\u003eref) /* UAF */  and also to races in iso_conn_add() vs. iso_conn_free().  Fix by adding spinlock hci_conn::proto_lock and using it to guard hci_conn::iso_data.",
  "id": "DEBIAN-CVE-2026-74533",
  "modified": "2026-10-01T02:47:50.472361963Z",
  "published": "2026-08-15T13:17:58.603Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74533"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-74533"
  ]
}