---
id: CVE-2026-68181
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mei: bus: access mei_device under device_lock on cleanup

  Fix couple of problems in mei_cl_bus_dev_release():

  mei_cl_flush_queues() is running without lock.
  bus->file_…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mei: bus: access mei_device under device_lock on cleanup

  Fix couple of problems in mei_cl_bus_dev_release():

  mei_cl_flush_queues() is running without lock.
  bus->file_…
severity: none
published: '2026-08-10'
updated: '2026-08-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-68181'
references:
  - url: 'https://git.kernel.org/stable/c/02e3a755086db847d795f2593ebc45e8ee4f1755'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/441559d4c595f839b39f0ab6a4ae628427c2fd9e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/59dd34854202d9a3faaa87a85205e553fe7150e1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7cf79e8d682fe93777268f029668ce5e214237fd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c88c030a324c9018b77894a19b2564eb66862020'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f112ea910e554d58b4b39a4492b7d302f0f4204f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00206
epssPercentile: 0.10948
ingestedAt: '2026-08-23T13:48:06.569Z'
---

## Overview

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

mei: bus: access mei_device under device_lock on cleanup

Fix couple of problems in mei_cl_bus_dev_release():

mei_cl_flush_queues() is running without lock.
bus->file_list access after mei_dev_bus_put(bus) can become a
use-after-free if this was the last reference to bus.

Protect queues cleanup and WARN traversal by device lock there
to avoid the concurrent access problems.
Move WARN traversal before mei_dev_bus_put(bus).

This file uses bus variable name for mei_device, adjust
code of mei_cl_bus_dev_release() to use bus variable too.

## Remediation

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