---
id: CVE-2025-68307
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs

  The driver lacks the cleanup of failed transfers of URBs
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs

  The driver lacks the cleanup of failed transfers of URBs. This reduces the
  number of avail…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T16:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68307'
references:
  - url: 'https://git.kernel.org/stable/c/1a588c40a422a3663a52f1c5535e8fb6b044167d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4a82072e451eacf24fc66a445e906f5095d215db'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/516a0cd1c03fa266bb67dd87940a209fd4e53ce7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/87974ebd6552817492daec7866ebfa2c484fa2ac'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9c8eb33b7008178b6ce88aa7593d12063ce60ca3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f7a5560675bd85efaf16ab01a43053670ff2b000'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00193
epssPercentile: 0.08279
ingestedAt: '2026-10-14T16:40:32.054Z'
---

## Overview

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

can: gs_usb: gs_usb_xmit_callback(): fix handling of failed transmitted URBs

The driver lacks the cleanup of failed transfers of URBs. This reduces the
number of available URBs per error by 1. This leads to reduced performance
and ultimately to a complete stop of the transmission.

If the sending of a bulk URB fails do proper cleanup:
- increase netdev stats
- mark the echo_sbk as free
- free the driver's context and do accounting
- wake the send queue

## Remediation

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