---
id: CVE-2026-68392
title: |-
  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…
summary: |-
  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…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
published: '2026-08-10'
updated: '2026-08-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-68392'
references:
  - url: 'https://git.kernel.org/stable/c/16cd66443957e4ad42155c6fec401012f600c6f8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/579faba5ede6df6b7f36777c431dc8dcf9d272e7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/74f3e6e21ebc6c418d348f8ce68aef6fe6d82c82'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8bc83f9ef6789571f399ff631a2a14a12b6d8585'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b11511006f9e17000de3f4cadee451364f658ca3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ca58ad287bfc5b9d31a72ecb8650289df2b57250'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00176
epssPercentile: 0.06246
ingestedAt: '2026-08-23T13:48:07.110Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.