CVE-2026-46056

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.

References

• https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47
• https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2
• https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993
• https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7
• https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8