---
id: CVE-2026-98804
title: >-
  kernel: net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()
  (CVE-2026-98804)
summary: >-
  A flaw was found in the Linux kernel's networking subsystem. When page pool
  statistics are enabled, a race condition in the bulk recycling mechanism can
  allow a memory pool to be freed before statistical updates finish processing.
  An attac…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-825
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
published: '2026-10-18'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T15:35:30+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98804.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98804.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98804'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555126'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98804'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98804'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98804.mbox
  - url: 'https://git.kernel.org/stable/c/f78d45d5f1ac4141a03f033141368671da4293e4'
  - url: 'https://git.kernel.org/stable/c/0b105f4eb78e5ee39e5a74c47c9efd69b6ac849c'
  - url: 'https://git.kernel.org/stable/c/bdea4980182e3badac74f04df6c07492b91c569e'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00198
epssPercentile: 0.09497
ingestedAt: '2026-10-18T16:47:32.481Z'
---

## Overview

A flaw was found in the Linux kernel's networking subsystem. When page pool statistics are enabled, a race condition in the bulk recycling mechanism can allow a memory pool to be freed before statistical updates finish processing. An attacker capable of triggering concurrent network buffer teardown could exploit this use-after-free flaw to cause a Denial of Service (DoS) via a system crash or potentially corrupt system memory.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98804.json)

**kernel: net: page_pool: fix use-after-free in page_pool_recycle_ring_bulk()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.

Affected:

- Red Hat Enterprise Linux 10

No fix planned:

- Red Hat Enterprise Linux 10

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Fix deferred