---
id: CVE-2023-53125
title: 'net: usb: smsc75xx: Limit packet length to skb->len'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: usb: smsc75xx: Limit packet length to skb->len

  Packet length retrieved from skb data may be larger than
  the actual socket buffer length (up to 9026 bytes). In suc…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    4a4de0a68b18485c68ab4f0cfa665b1633c6d277
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    53966d572d056d6b234cfe76a5f9d60049d3c178
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    9fabdd79051a9fe51388df099aff6e4b660fedd2
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    e294f0aa47e4844f3d3c8766c02accd5a76a7d4e
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    105db6574281e1e03fcbf87983f4fee111682306
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    c7bdc137ca163b90917c1eeba4f1937684bd4f8b
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    8ee5df9c039e37b9d8eb5e3de08bfb7f53d31cb6
  - >-
    Linux >= d0cad871703b898a442e4049c532ec39168e5b57 <
    d8b228318935044dafe3a5bc07ee71a1f1424b8d
  - Linux 2.6.34
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:18:23.411143Z'
published: '2025-05-02'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:21:03.388Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53125'
references:
  - url: 'https://git.kernel.org/stable/c/4a4de0a68b18485c68ab4f0cfa665b1633c6d277'
  - url: 'https://git.kernel.org/stable/c/53966d572d056d6b234cfe76a5f9d60049d3c178'
  - url: 'https://git.kernel.org/stable/c/9fabdd79051a9fe51388df099aff6e4b660fedd2'
  - url: 'https://git.kernel.org/stable/c/e294f0aa47e4844f3d3c8766c02accd5a76a7d4e'
  - url: 'https://git.kernel.org/stable/c/105db6574281e1e03fcbf87983f4fee111682306'
  - url: 'https://git.kernel.org/stable/c/c7bdc137ca163b90917c1eeba4f1937684bd4f8b'
  - url: 'https://git.kernel.org/stable/c/8ee5df9c039e37b9d8eb5e3de08bfb7f53d31cb6'
  - url: 'https://git.kernel.org/stable/c/d8b228318935044dafe3a5bc07ee71a1f1424b8d'
tags:
  - cve.org
epss: 0.00191
epssPercentile: 0.08837
ingestedAt: '2026-11-05T22:38:31.775Z'
---

## Overview

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

net: usb: smsc75xx: Limit packet length to skb->len

Packet length retrieved from skb data may be larger than
the actual socket buffer length (up to 9026 bytes). In such
case the cloned skb passed up the network stack will leak
kernel memory contents.

## Affected

- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < 4a4de0a68b18485c68ab4f0cfa665b1633c6d277`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < 53966d572d056d6b234cfe76a5f9d60049d3c178`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < 9fabdd79051a9fe51388df099aff6e4b660fedd2`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < e294f0aa47e4844f3d3c8766c02accd5a76a7d4e`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < 105db6574281e1e03fcbf87983f4fee111682306`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < c7bdc137ca163b90917c1eeba4f1937684bd4f8b`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < 8ee5df9c039e37b9d8eb5e3de08bfb7f53d31cb6`
- `Linux >= d0cad871703b898a442e4049c532ec39168e5b57 < d8b228318935044dafe3a5bc07ee71a1f1424b8d`
- `Linux 2.6.34`

## Remediation

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