CVE-2026-46056 (GCVE-0-2026-46056)
Vulnerability from cvelistv5
Published
2026-05-27 12:57
Modified
2026-06-14 17:51
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise the connection can be freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage in both handlers. Keep the existing keypress notification behavior unchanged by routing the early exits through a common unlock path.
Impacted products
Vendor Product Version
Linux Linux Version: 92a25256f142d55e25f9959441cea6ddeabae57e
Version: 92a25256f142d55e25f9959441cea6ddeabae57e
Version: 92a25256f142d55e25f9959441cea6ddeabae57e
Version: 92a25256f142d55e25f9959441cea6ddeabae57e
Version: 92a25256f142d55e25f9959441cea6ddeabae57e
Version: 92a25256f142d55e25f9959441cea6ddeabae57e
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: fix potential UAF in SSP passkey handlers\n\nhci_conn lookup and field access must be covered by hdev lock in\nhci_user_passkey_notify_evt() and hci_keypress_notify_evt(), otherwise\nthe connection can be freed concurrently.\n\nExtend the hci_dev_lock critical section to cover all conn usage in both\nhandlers.\n\nKeep the existing keypress notification behavior unchanged by routing\nthe early exits through a common unlock path."
        }
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      "metrics": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:51:08.884Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47"
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          "url": "https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8"
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        },
        {
          "url": "https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993"
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      "title": "Bluetooth: hci_event: fix potential UAF in SSP passkey handlers",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46056",
    "datePublished": "2026-05-27T12:57:15.150Z",
    "dateReserved": "2026-05-13T15:03:33.094Z",
    "dateUpdated": "2026-06-14T17:51:08.884Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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