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Vulnerabilities CVE-2026-68391

CVE-2026-68391

High
Open
TLP:CLEAR

Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

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Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF. Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid. When accessing conn->state, ensure hdev->lock is held to avoid data race.

Details

CVSS Score
7.8
EPSS Score
0.17%

6.4th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Aug 10, 2026
Last Modified
Aug 13, 2026
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