---
id: CVE-2026-98375
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  xen/netfront: drop RX packets with a short Ethernet header

  handle_incoming_queue() pulls pull_to bytes into the head before
  calling eth_type_trans()
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  xen/netfront: drop RX packets with a short Ethernet header

  handle_incoming_queue() pulls pull_to bytes into the head before
  calling eth_type_trans().  pull_to is the l…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-125
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-09'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:18:12.323'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98375'
references:
  - url: 'https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/236a17caebcff31f75bec5ff4136bde2de944e40'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/72d2f54367895d6e236b9857892e2e6b6036e067'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/09/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://xenbits.xen.org/xsa/advisory-522.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98375.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98375'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2548385'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98375'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98375'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98375.mbox
  - url: 'https://git.kernel.org/stable/c/0542d213253eec18785a24b603b28bd385dfe4a5'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00186
epssPercentile: 0.08123
cvssSource: vendor
ingestedAt: '2026-10-09T08:29:41.346Z'
---

## Overview

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

xen/netfront: drop RX packets with a short Ethernet header

handle_incoming_queue() pulls pull_to bytes into the head before
calling eth_type_trans().  pull_to is the length of the first RX slot,
capped at RX_COPY_THRESHOLD, and that length comes from the backend.
Nothing checks it against ETH_HLEN.

If the first slot is shorter than ETH_HLEN and more slots follow, the
head ends up shorter than an Ethernet header while skb->len is longer,
and eth_type_trans() BUG()s in __skb_pull().  If the whole packet is
shorter than ETH_HLEN, eth_type_trans() reads the header past the end
of the data instead.

Pull at least ETH_HLEN, and drop the packet if that fails, which also
drops packets too short to hold an Ethernet header.  This also checks
the return value of the pull, which was ignored.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, 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 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98375.json)