{
  "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 refcounting of iso_conn  iso_conn_del() and iso_chan_del() have a race that results to double-put of iso_conn:      [Task hdev-\u003eworkqueue]         [Task 2]     iso_conn_del                   iso_chan_del       iso_conn_hold_unless_zero      iso_conn_lock       iso_conn_lock                  conn-\u003esk = NULL                                      iso_conn_unlock       sk = iso_sock_hold(conn)  \u003c---------´       if (!sk) iso_conn_put          iso_conn_put       iso_conn_put /* UAF */  The extra put for !sk in iso_conn_del() is currently required since failing iso_chan_add() may leave iso_conn not associated with any sk.  Fix by having iso_pi(sk)-\u003econn own refcount when non-NULL, so iso_conn_del does not need to put it.  Adjust the iso_conn_add() refcounting so that conn is put if it does not get associated with an sk.",
  "id": "DEBIAN-CVE-2026-74534",
  "modified": "2026-09-14T16:47:29.115725936Z",
  "published": "2026-08-15T13:17:58.700Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74534"
    }
  ],
  "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-2026-74534"
  ]
}