---
id: CVE-2026-98766
title: >-
  kernel: usb: gadget: aspeed-vhub: cancel wake work on device removal
  (CVE-2026-98766)
summary: >-
  A flaw was found in the Linux kernel's Aspeed virtual hub (vhub) driver. When
  a device is removed, scheduled wakeup tasks are not properly canceled,
  allowing background work to run after the associated memory structures have
  been freed. A …
severity: medium
cvss: 4.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-825
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= 7ecca2a4080cb6b1fa174adc588fce9e9014c43c <
    0d39ac4f65f9357469518c70e42940e0d8b0e497
  - >-
    Linux >= 7ecca2a4080cb6b1fa174adc588fce9e9014c43c <
    f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41
  - >-
    Linux >= 7ecca2a4080cb6b1fa174adc588fce9e9014c43c <
    474e9e1852fb5ba0bfb26f123dd0cb361d0f4f4d
  - >-
    Linux >= 7ecca2a4080cb6b1fa174adc588fce9e9014c43c <
    c81504dfd2d93e345c98e7a012c2f2e74ce5b6a1
  - >-
    Linux >= 7ecca2a4080cb6b1fa174adc588fce9e9014c43c <
    20388c8d1d74c203fec8194c45cd31afdfab934e
  - Linux 4.18
published: '2026-10-18'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T06:41:05+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98766.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98766.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98766'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2555097'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98766'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98766'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98766.mbox
  - url: 'https://git.kernel.org/stable/c/0d39ac4f65f9357469518c70e42940e0d8b0e497'
  - url: 'https://git.kernel.org/stable/c/f343bfa3fc9f6255602d66f4a7dbe7ddef13ba41'
  - url: 'https://git.kernel.org/stable/c/474e9e1852fb5ba0bfb26f123dd0cb361d0f4f4d'
  - url: 'https://git.kernel.org/stable/c/c81504dfd2d93e345c98e7a012c2f2e74ce5b6a1'
  - url: 'https://git.kernel.org/stable/c/20388c8d1d74c203fec8194c45cd31afdfab934e'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00168
epssPercentile: 0.05974
ingestedAt: '2026-10-18T16:47:32.495Z'
---

## Overview

A flaw was found in the Linux kernel's Aspeed virtual hub (vhub) driver. When a device is removed, scheduled wakeup tasks are not properly canceled, allowing background work to run after the associated memory structures have been freed. A local attacker could exploit this race condition to trigger a use-after-free condition, resulting in memory corruption and a Denial of Service (DoS) via a system crash.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98766.json)

**kernel: usb: gadget: aspeed-vhub: cancel wake work on device removal** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.