---
id: CVE-2025-68750
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: potential integer overflow in usbg_make_tpg()

  The variable tpgt in usbg_make_tpg() is defined as unsigned long and is
  assigned to tpgt->tport_tpgt, which is defin…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: potential integer overflow in usbg_make_tpg()

  The variable tpgt in usbg_make_tpg() is defined as unsigned long and is
  assigned to tpgt->tport_tpgt, which is defin…
severity: none
published: '2025-12-24'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68750'
references:
  - url: 'https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/358d5ba08f1609c34a054aed88c431844d09705a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/620a5e1e84a3a7004270703a118d33eeb1c0f368'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6722e080b5b39ab7471386c73d0c1b39572f943c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a33f507f36d5881f602dab581ab0f8d22b49762c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00196
epssPercentile: 0.08585
ingestedAt: '2026-10-13T10:22:03.521Z'
---

## Overview

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

usb: potential integer overflow in usbg_make_tpg()

The variable tpgt in usbg_make_tpg() is defined as unsigned long and is
assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an
integer overflow when tpgt is greater than USHRT_MAX (65535). I
haven't tried to trigger it myself, but it is possible to trigger it
by calling usbg_make_tpg() with a large value for tpgt.

I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the
relevant code accordingly.

This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential
memory corruption").

## Remediation

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