---
id: CVE-2026-80814
title: 'rndis_host: add overflow check in rndis_rx_fixup()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  rndis_host: add overflow check in rndis_rx_fixup()

  Add an overflow check to ensure that data_offset + data_len + 8 does not
  wrap, which would enable an OOB read of the…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    2140db1232af04b92faa6c4a2a40df6371ea89ff
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    8ca3bd404d076495ed0b274b65971c57b6fd5ac0
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    f8e6fde5db87f855e99b200e392467274f0eb9d7
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    10a6b99079697c5027b25352e882bdf54fef702a
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    c5398ce6db7647b7004d73a3102ccc25fb4bb596
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    e971d956353d382ee2185d71c47b538501a43f76
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    be7dc3650f799a253df4edd4fe230fc9ea4be063
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    2ded89ca77fae1da6886fe94831acfe4d6aa80b1
  - >-
    Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 <
    965a251f23ff69cfb4486974d4532e9bb551c7fc
  - Linux 2.6.14
published: '2026-09-04'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:44:08.040Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80814'
references:
  - url: 'https://git.kernel.org/stable/c/2140db1232af04b92faa6c4a2a40df6371ea89ff'
  - url: 'https://git.kernel.org/stable/c/8ca3bd404d076495ed0b274b65971c57b6fd5ac0'
  - url: 'https://git.kernel.org/stable/c/f8e6fde5db87f855e99b200e392467274f0eb9d7'
  - url: 'https://git.kernel.org/stable/c/10a6b99079697c5027b25352e882bdf54fef702a'
  - url: 'https://git.kernel.org/stable/c/c5398ce6db7647b7004d73a3102ccc25fb4bb596'
  - url: 'https://git.kernel.org/stable/c/e971d956353d382ee2185d71c47b538501a43f76'
  - url: 'https://git.kernel.org/stable/c/be7dc3650f799a253df4edd4fe230fc9ea4be063'
  - url: 'https://git.kernel.org/stable/c/2ded89ca77fae1da6886fe94831acfe4d6aa80b1'
  - url: 'https://git.kernel.org/stable/c/965a251f23ff69cfb4486974d4532e9bb551c7fc'
tags:
  - cve.org
epss: 0.00195
epssPercentile: 0.08587
ingestedAt: '2026-10-19T09:16:01.508Z'
---

## Overview

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

rndis_host: add overflow check in rndis_rx_fixup()

Add an overflow check to ensure that data_offset + data_len + 8 does not
wrap, which would enable an OOB read of the USB data buffer.

## Affected

- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < 2140db1232af04b92faa6c4a2a40df6371ea89ff`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < 8ca3bd404d076495ed0b274b65971c57b6fd5ac0`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < f8e6fde5db87f855e99b200e392467274f0eb9d7`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < 10a6b99079697c5027b25352e882bdf54fef702a`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < c5398ce6db7647b7004d73a3102ccc25fb4bb596`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < e971d956353d382ee2185d71c47b538501a43f76`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < be7dc3650f799a253df4edd4fe230fc9ea4be063`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < 2ded89ca77fae1da6886fe94831acfe4d6aa80b1`
- `Linux >= 64e049102d3de3e61409cb6019403a9e689dfda6 < 965a251f23ff69cfb4486974d4532e9bb551c7fc`
- `Linux 2.6.14`

## Remediation

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