CVE-2026-46056

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/01a6431766c35dfedb86e0cb5d3fc80c6d604a47	Patch
https://git.kernel.org/stable/c/204028af77a265e31ceb4ba7f643349a3cca72b2	Patch
https://git.kernel.org/stable/c/85fa3512048793076eef658f66489112dcc91993	Patch
https://git.kernel.org/stable/c/8c6443bb9257b780986fb67ec08565bf48ecb8d7	Patch
https://git.kernel.org/stable/c/b6ae482f88654db407c8c17619d4b62959b903ef	Patch
https://git.kernel.org/stable/c/d28311539ac9f65e29308ea219ecaa48aa5e76e5
https://git.kernel.org/stable/c/e08d75753db17aa943d7622f09d9c217b5bfd3b8	Patch
https://git.kernel.org/stable/c/ea18732d2614557e59f4c0d8cdbe6611aeab33b7

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-19 13:16

NVD link : CVE-2026-46056

Mitre link : CVE-2026-46056

CVE.ORG link : CVE-2026-46056

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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