---
id: CVE-2025-68374
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  md: fix rcu protection in md_wakeup_thread

  We attempted to use RCU to protect the pointer 'thread', but directly
  passed the value when calling md_wakeup_thread()
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  md: fix rcu protection in md_wakeup_thread

  We attempted to use RCU to protect the pointer 'thread', but directly
  passed the value when calling md_wakeup_thread(). This…
severity: none
published: '2025-12-24'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T11:10:00.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68374'
references:
  - url: 'https://git.kernel.org/stable/c/0dc76205549b4c25705e54345f211b9f66e018a0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/21989cb5034c835b212385a2afadf279d8069da0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a4bd1caf591faeae44cb10b6517e7dacb5139bda'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f98b191f78124405294481dea85f8a22a3eb0a59'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dc6d1249ee35c1c76700b4b96281daeb7637bce1'
tags:
  - nvd
  - cve.org
epss: 0.00214
epssPercentile: 0.1171
ingestedAt: '2026-10-13T11:23:51.154Z'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 4469315439827290923fce4f3f672599cabeb366 <
    dc6d1249ee35c1c76700b4b96281daeb7637bce1
  - >-
    Linux >= 4469315439827290923fce4f3f672599cabeb366 <
    21989cb5034c835b212385a2afadf279d8069da0
  - >-
    Linux >= 4469315439827290923fce4f3f672599cabeb366 <
    a4bd1caf591faeae44cb10b6517e7dacb5139bda
  - >-
    Linux >= 4469315439827290923fce4f3f672599cabeb366 <
    f98b191f78124405294481dea85f8a22a3eb0a59
  - >-
    Linux >= 4469315439827290923fce4f3f672599cabeb366 <
    0dc76205549b4c25705e54345f211b9f66e018a0
  - Linux 6.5
---

## Overview

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

md: fix rcu protection in md_wakeup_thread

We attempted to use RCU to protect the pointer 'thread', but directly
passed the value when calling md_wakeup_thread(). This means that the
RCU pointer has been acquired before rcu_read_lock(), which renders
rcu_read_lock() ineffective and could lead to a use-after-free.

## Remediation

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