---
id: CVE-2025-68321
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  page_pool: always add GFP_NOWARN for ATOMIC allocations

  Driver authors often forget to add GFP_NOWARN for page allocation
  from the datapath
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  page_pool: always add GFP_NOWARN for ATOMIC allocations

  Driver authors often forget to add GFP_NOWARN for page allocation
  from the datapath. This is annoying to users …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-390
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    0ec2cd5c58793d0c622797cd5fbe26634b357210
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    9835a0fd59a1df5ec0740fdab6d50db68e0f10de
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    7613c06ffa89c1e2266fb532e23ef7dfdf269d73
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    3671a0775952026228ae44e096eb144bca75f8dc
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    ab48dc0e23eb714b3f233f8e8f6deed7df2051f5
  - >-
    Linux >= ff7d6b27f894f1469dc51ccb828b7363ccd9799f <
    f3b52167a0cb23b27414452fbc1278da2ee884fc
  - Linux 4.18
published: '2025-12-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:16:51.303'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68321'
references:
  - url: 'https://git.kernel.org/stable/c/0ec2cd5c58793d0c622797cd5fbe26634b357210'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3671a0775952026228ae44e096eb144bca75f8dc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7613c06ffa89c1e2266fb532e23ef7dfdf269d73'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9835a0fd59a1df5ec0740fdab6d50db68e0f10de'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ab48dc0e23eb714b3f233f8e8f6deed7df2051f5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f3b52167a0cb23b27414452fbc1278da2ee884fc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68321.json
  - url: 'https://access.redhat.com/security/cve/CVE-2025-68321'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2422811'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2025-68321'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68321'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2025121622-CVE-2025-68321-72b0@gregkh/T
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00441
epssPercentile: 0.3816
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-16T15:04:40.319034Z'
scores:
  nvd: 7.5
  vendor: 5.5
ingestedAt: '2026-10-13T11:23:51.108Z'
---

## Overview

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

page_pool: always add GFP_NOWARN for ATOMIC allocations

Driver authors often forget to add GFP_NOWARN for page allocation
from the datapath. This is annoying to users as OOMs are a fact
of life, and we pretty much expect network Rx to hit page allocation
failures during OOM. Make page pool add GFP_NOWARN for ATOMIC allocations
by default.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68321.json)