---
id: CVE-2026-90142
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  virtio_net: Fix resize of the RX ring

  When a AF_XDP socket is attached, the virtnet_rx_resize
  should resize the rq->xsk_buffs XSK buffer array
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  virtio_net: Fix resize of the RX ring

  When a AF_XDP socket is attached, the virtnet_rx_resize
  should resize the rq->xsk_buffs XSK buffer array. Otherwise,
  when the siz…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 <
    8344c9233c8f77017174d9e280c5a26034d068b6
  - >-
    Linux >= e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 <
    d09c98a6da215bce2173a292e4b95c8de6ea5d51
  - Linux 6.11
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:17:43.567'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90142'
references:
  - url: 'https://git.kernel.org/stable/c/8344c9233c8f77017174d9e280c5a26034d068b6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d09c98a6da215bce2173a292e4b95c8de6ea5d51'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00165
epssPercentile: 0.05029
ingestedAt: '2026-09-17T16:21:47.877Z'
---

## Overview

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

virtio_net: Fix resize of the RX ring

When a AF_XDP socket is attached, the virtnet_rx_resize
should resize the rq->xsk_buffs XSK buffer array. Otherwise,
when the size grows, the virtnet_rx_resume() causes a write
past the end of the array. This is easily reproducable with

    ethtool -G ens3 rx 32
    ./xdpsock -i eth0 -q 0 -r -z &
    ethtool -G eth0 rx 256

## Remediation

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