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CVE-2026-46056

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 92a25256f142d55e25f9959441cea6ddeabae57e before ea18732d2614557e59f4c0d8cdbe6611aeab33b7; affected 92a25256f142d55e25f9959441cea6ddeabae57e before d28311539ac9f65e29308ea219ecaa48aa5e76e5; affected 92a25256f142d55e25f9959441cea6ddeabae57e before b6ae482f88654db407c8c17619d4b62959b903ef; affected 92a25256f142d55e25f9959441cea6ddeabae57e before 204028af77a265e31ceb4ba7f643349a3cca72b2; affected 92a25256f142d55e25f9959441cea6ddeabae57e before 01a6431766c35dfedb86e0cb5d3fc80c6d604a47; affected 92a25256f142d55e25f9959441cea6ddeabae57e before e08d75753db17aa943d7622f09d9c217b5bfd3b8; affected 92a25256f142d55e25f9959441cea6ddeabae57e before 8c6443bb9257b780986fb67ec08565bf48ecb8d7; affected 92a25256f142d55e25f9959441cea6ddeabae57e before 85fa3512048793076eef658f66489112dcc91993
Linux / Linuxaffected 3.7; unaffected 0 before 3.7; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.86 through 6.12.*; unaffected 6.18.27 through 6.18.*; unaffected 7.0.4 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.