---
id: CVE-2025-68300
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs/namespace: fix reference leak in grab_requested_mnt_ns

  lookup_mnt_ns() already takes a reference on mnt_ns.
  grab_requested_mnt_ns() doesn't need to take an extra re…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  fs/namespace: fix reference leak in grab_requested_mnt_ns

  lookup_mnt_ns() already takes a reference on mnt_ns.
  grab_requested_mnt_ns() doesn't need to take an extra re…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T16:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68300'
references:
  - url: 'https://git.kernel.org/stable/c/4a16b2a0c1f033f95f5d0b98b9e40e8bf7c4c2c5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7b6dcd9bfd869eee7693e45b1817dac8c56e5f86'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fe256e59b8e7f126b2464ee32bd9fee131f0a883'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00184
epssPercentile: 0.07378
ingestedAt: '2026-10-14T16:40:32.052Z'
---

## Overview

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

fs/namespace: fix reference leak in grab_requested_mnt_ns

lookup_mnt_ns() already takes a reference on mnt_ns.
grab_requested_mnt_ns() doesn't need to take an extra reference.

## Remediation

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