{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.13-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer  In iso_sock_rebind_bc(), the bis pointer is cached, then the socket lock is dropped: \tbis = iso_pi(sk)-\u003econn-\u003ehcon; \t/* Release the socket before lookups since that requires hci_dev_lock \t * which shall not be acquired while holding sock_lock for proper \t * ordering. \t */ \trelease_sock(sk); \thci_dev_lock(bis-\u003ehdev);  During the unlocked window, could a concurrent close() destroy the connection and free the bis structure, causing hci_dev_lock(bis-\u003ehdev) to access memory after it is freed, fix this by using the hdev reference which was safely acquired via iso_conn_get_hdev().",
  "id": "DEBIAN-CVE-2026-53276",
  "modified": "2026-09-14T16:47:30.446060123Z",
  "published": "2026-06-25T09:16:45.807Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-53276"
    }
  ],
  "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-2026-53276"
  ]
}