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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-46056

Bluetooth: hci_event: fix potential UAF in SSP passkey handlers

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 92a25256f142d55e25f9959441cea6ddeabae57e to < ea18732d2614557e59f4c0d8cdbe6611aeab33b7affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < d28311539ac9f65e29308ea219ecaa48aa5e76e5affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < b6ae482f88654db407c8c17619d4b62959b903efaffected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < 204028af77a265e31ceb4ba7f643349a3cca72b2affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < 01a6431766c35dfedb86e0cb5d3fc80c6d604a47affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < e08d75753db17aa943d7622f09d9c217b5bfd3b8affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < 8c6443bb9257b780986fb67ec08565bf48ecb8d7affected
  • 92a25256f142d55e25f9959441cea6ddeabae57e to < 85fa3512048793076eef658f66489112dcc91993affected

Linux Linux

Default version status: affected

  • 3.7affected
  • 0 to < 3.7unaffected
  • 5.10.259 to ≤ 5.10.*unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.140 to ≤ 6.6.*unaffected
  • 6.12.86 to ≤ 6.12.*unaffected
  • 6.18.27 to ≤ 6.18.*unaffected
  • 7.0.4 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References