CVE-2026-46056
Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
| Last Updated | Jun 1, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
92a25256f142d55e25f9959441cea6ddeabae57e < b6ae482f88654db407c8c17619d4b62959b903ef 92a25256f142d55e25f9959441cea6ddeabae57e < 204028af77a265e31ceb4ba7f643349a3cca72b2 92a25256f142d55e25f9959441cea6ddeabae57e < 01a6431766c35dfedb86e0cb5d3fc80c6d604a47 92a25256f142d55e25f9959441cea6ddeabae57e < e08d75753db17aa943d7622f09d9c217b5bfd3b8 92a25256f142d55e25f9959441cea6ddeabae57e < 8c6443bb9257b780986fb67ec08565bf48ecb8d7 92a25256f142d55e25f9959441cea6ddeabae57e < 85fa3512048793076eef658f66489112dcc91993
Linux / Linux
3.7
References
git.kernel.org: https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef git.kernel.org: https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2 git.kernel.org: https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47 git.kernel.org: https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8 git.kernel.org: https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7 git.kernel.org: https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993