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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Fri, 19 Jun 2026 12:45:00 +0000
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Mon, 01 Jun 2026 17:00:00 +0000
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Sat, 30 May 2026 11:00:00 +0000
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| Metrics |
cvssV3_1
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cvssV3_1
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Thu, 28 May 2026 00:15:00 +0000
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| Weaknesses | CWE-413 | |
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| Metrics |
threat_severity
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cvssV3_1
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Wed, 27 May 2026 18:30:00 +0000
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| Weaknesses | CWE-416 |
Wed, 27 May 2026 14:15:00 +0000
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| Description | 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. | |
| Title | Bluetooth: hci_event: fix potential UAF in SSP passkey handlers | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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| References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-06-19T11:59:12.139Z
Reserved: 2026-05-13T15:03:33.094Z
Link: CVE-2026-46056
No data.
Status : Analyzed
Published: 2026-05-27T14:17:25.317
Modified: 2026-06-17T10:52:59.557
Link: CVE-2026-46056
OpenCVE Enrichment
Updated: 2026-05-30T12:45:23Z