{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-63946",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2026-63946"
  ],
  "published": "2026-07-19T14:56:29Z",
  "summary": "Bluetooth: ISO: fix UAF in iso_recv_frame",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: fix UAF in iso_recv_frame\n\niso_recv_frame reads conn->sk under iso_conn_lock but releases the lock\nbefore using sk, with no reference held. A concurrent iso_sock_kill()\ncan free sk in that window, causing use-after-free on sk->sk_state and\nsock_queue_rcv_skb().\n\nFix by replacing the bare pointer read with iso_sock_hold(conn), which\ncalls sock_hold() while the spinlock is held, atomically elevating the\nrefcount before the lock drops. Add a drop_put label so sock_put() is\ncalled on all exit paths where the hold succeeded.",
  "severity": [
    {
      "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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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-63946"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c57ea90f203c8b8b41a474f19a09000d0f841436"
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    "upstream_modified": "2026-08-05T13:16:28Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 8.8,
      "cvss_v3_severity": "High",
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}