---
id: CVE-2026-74614
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  vsock/virtio: read virtqueues under worker locks

  Commit bd50c5dc182b ("vsock/virtio: add support for device
  suspend/resume") made the *_run flags transition from false…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  vsock/virtio: read virtqueues under worker locks

  Commit bd50c5dc182b ("vsock/virtio: add support for device
  suspend/resume") made the *_run flags transition from false…
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
published: '2026-08-22'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74614'
references:
  - url: 'https://git.kernel.org/stable/c/1cecb4202afdbeddcf29d59baf596ac6ab753f7f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/29dd10583bf9d2744cd84b862e4257c0a5699570'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/941329ce14c5f481223a10d1d4c8b57ea7f3048a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a1fb0c5b8a7c2753758aeced40971f99449dde0c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bd43a7ec668be428265b3209eb43647aedcf720a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/eae099c764c7ebdb842eb1f638913e310bdd6513'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ebac8f6b1ef0e9278afe204b8692a7479988dace'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00142
epssPercentile: 0.03052
ingestedAt: '2026-10-14T13:30:58.516Z'
---

## Overview

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

vsock/virtio: read virtqueues under worker locks

Commit bd50c5dc182b ("vsock/virtio: add support for device
suspend/resume") made the *_run flags transition from false to true when
restore installs replacement virtqueues.  The RX, TX and event workers
read their virtqueue before locking and checking the corresponding flag,
so a worker delayed across freeze and restore can observe the replacement
queue's running state while retaining a pointer to the deleted queue.

Read each virtqueue under its mutex after checking the run flag, keeping
the pointer and state in the same queue generation.

## Remediation

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