---
id: CVE-2026-68374
title: 'usb: core: sysfs: add lock to bos_descriptors_read()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: core: sysfs: add lock to bos_descriptors_read()

  Add a lock to the function bos_descriptors_read().

  This function accesses udev->bos, which could be simultaneousl…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 <
    c07caee449c968842a350bfefa049889923b8240
  - >-
    Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 <
    217774e143d7b5a88739193284b6421be3978601
  - >-
    Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 <
    ab82adf5e63b2d89ead7933ab753b9cedbe028e9
  - >-
    Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 <
    4e0197fbb0eec588795d5431716a244d9ac8fa93
  - Linux 6.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T15:47:33.384722Z'
published: '2026-08-10'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T15:53:09.811Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-68374'
references:
  - url: 'https://git.kernel.org/stable/c/c07caee449c968842a350bfefa049889923b8240'
  - url: 'https://git.kernel.org/stable/c/217774e143d7b5a88739193284b6421be3978601'
  - url: 'https://git.kernel.org/stable/c/ab82adf5e63b2d89ead7933ab753b9cedbe028e9'
  - url: 'https://git.kernel.org/stable/c/4e0197fbb0eec588795d5431716a244d9ac8fa93'
tags:
  - cve.org
epss: 0.00128
epssPercentile: 0.02204
ingestedAt: '2026-10-16T17:24:46.861Z'
---

## Overview

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

usb: core: sysfs: add lock to bos_descriptors_read()

Add a lock to the function bos_descriptors_read().

This function accesses udev->bos, which could be simultaneously freed in
usb_reset_and_verify_device(), a function that is commonly called in
drivers all over the kernel.

## Affected

- `Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 < c07caee449c968842a350bfefa049889923b8240`
- `Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 < 217774e143d7b5a88739193284b6421be3978601`
- `Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 < ab82adf5e63b2d89ead7933ab753b9cedbe028e9`
- `Linux >= 12fc84e8c4288cc8ed5f14a35e077130c2cfece2 < 4e0197fbb0eec588795d5431716a244d9ac8fa93`
- `Linux 6.9`

## Remediation

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