---
id: CVE-2026-93052
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  misc: bcm-vk: Use acquire/release for msgq_inited

  bcm_vk_sync_msgq() fills the message queue information and then sets
  msgq_inited
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  misc: bcm-vk: Use acquire/release for msgq_inited

  bcm_vk_sync_msgq() fills the message queue information and then sets
  msgq_inited. Readers call bcm_vk_drv_access_ok()…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    bab66a9e30e39a06f3463b19f8c704386dfd5268
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    679cfada6868723ccf162ec3b78c7402ff2405bf
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    f7a8f4cbc8cede0be55220367dc52b126e2d39e5
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    1df3926ed8771edf286ff753428b243f334e6041
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    a45d6dd3c11e921882a2e74c7c8710b975f2eaa7
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    4984277bc43f84d7506346a09b29af138246d54a
  - >-
    Linux >= 111d746bb4767ad476f80fe49067e3df3d9a9375 <
    61b101c6a150057b6d512421ed108aed16e822ea
  - Linux 5.12
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:58.657'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93052'
references:
  - url: 'https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.770Z'
epss: 0.00205
epssPercentile: 0.109
---

## Overview

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

misc: bcm-vk: Use acquire/release for msgq_inited

bcm_vk_sync_msgq() fills the message queue information and then sets
msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the
message queues and their cached queue information.

atomic_set()/atomic_read() do not order those accesses. A reader can see
msgq_inited set while still seeing stale queue information. Use release
when publishing the initialized queues and acquire when checking the gate.

Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the
gate and does not publish queue state to readers.

## Remediation

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