---
id: CVE-2025-68221
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mptcp: fix address removal logic in mptcp_pm_nl_rm_addr

  Fix inverted WARN_ON_ONCE condition that prevented normal address
  removal counter updates
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mptcp: fix address removal logic in mptcp_pm_nl_rm_addr

  Fix inverted WARN_ON_ONCE condition that prevented normal address
  removal counter updates. The current code onl…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68221'
references:
  - url: 'https://git.kernel.org/stable/c/92e239e36d600002559074994a545fcfac9afd2d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f7d953c38245c0e9d8e268fb6a9e524602fb44ec'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00205
epssPercentile: 0.09753
ingestedAt: '2026-10-14T13:30:58.458Z'
---

## Overview

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

mptcp: fix address removal logic in mptcp_pm_nl_rm_addr

Fix inverted WARN_ON_ONCE condition that prevented normal address
removal counter updates. The current code only executes decrement
logic when the counter is already 0 (abnormal state), while
normal removals (counter > 0) are ignored.

## Remediation

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