Bluetooth: ISO: clear iso_data always when detaching conn from hcon

{
  "id": "875f481010dc67cf3de7c40e81469ed24a1ef722f7859557a9bb7e1a5eaed929",
  "url": "https://osv.dev/vulnerability/CVE-2026-74541",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bluetooth: ISO: clear iso_data always when detaching conn from hcon",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync().",
    "evidence": "osv:CVE-2026-74541",
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        "prerequisites": [],
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    "severity": "high",
    "structured": {
      "id": "CVE-2026-74541",
      "aliases": [
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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      ],
      "modified": "2026-10-28T02:30:36.106068846Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59",
        "https://git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7",
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        "https://git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74541.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-74541",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
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        "cna_assigner": "Linux",
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 503518,
  "published_at": "2026-08-15T12:27:52.12+00:00"
}