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CVE-2026-68392

Updated on 10 Aug 2026

Severity

7.8 High severity

Details

CVSS score
7.8
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync

Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF.

Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don’t use RCU to ensure the conn is fully initialized at this point.

Details

Affected product:
AlmaLinux 9.2 ESU , CentOS 6 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , Debian 10 ELS , RHEL 7 ELS , TuxCare 9.6 ESU
Affected packages:
linux @ 4.19.0 (+8 more)

Fixes

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Debian 13 Planned —
Ubuntu 24.04 Planned —
Ubuntu 24.04 AWS Planned —
Ubuntu 26.04 Will Not Fix —