---
id: CVE-2026-98933
title: 'usb: hub: use shorter 120ms post resume hold for SS root hubs'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: hub: use shorter 120ms post resume hold for SS root hubs

  Holding a USB3 hub PM runtime reference for 200ms at hub resume triggers
  an AMD platform issue.  Users ru…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 15fea75a788681dd36a869dd90ff4f0461ea0714 <
    e4df763ba3c4fdd1d9256f7a75a17ab7c5e31db6
  - >-
    Linux >= aec11e5f9c452ef64e2c113637ab89a67a5ceb62 <
    2dc82d6a12050c2c678a328cd29837beb367df7d
  - >-
    Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 <
    e9545dd8bc62596b2a20966be41f39879ea7c8d0
  - >-
    Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 <
    d7c4a49b41583266e1456d40f37966029f61dab9
  - >-
    Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 <
    29480b05e6e226594dc11ccf2a036fbd5cdd0e42
  - Linux 042959e9b479502a921109224c3abcc3d3cf09a1
  - Linux 8aa04df2553f29e6249f978a29421f2744a65ffb
  - Linux e38ca702130b7d70834abdbee58135ca471b2106
  - Linux 43e53eb8433c332666a222bff8e49aa03a470d0d
  - Linux 16840c4e102ee5424ab1c49238f0bbf568d13a1c
  - Linux >= 6.6.100 < 6.6.160
  - Linux >= 6.12.40 < 6.12.113
  - Linux >= 5.4.297 < 5.5
  - Linux >= 5.10.241 < 5.11
  - Linux >= 5.15.190 < 5.16
  - Linux >= 6.1.147 < 6.2
  - Linux >= 6.15.8 < 6.16
  - Linux 6.16
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T12:11:39.531Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98933'
references:
  - url: 'https://git.kernel.org/stable/c/e4df763ba3c4fdd1d9256f7a75a17ab7c5e31db6'
  - url: 'https://git.kernel.org/stable/c/2dc82d6a12050c2c678a328cd29837beb367df7d'
  - url: 'https://git.kernel.org/stable/c/e9545dd8bc62596b2a20966be41f39879ea7c8d0'
  - url: 'https://git.kernel.org/stable/c/d7c4a49b41583266e1456d40f37966029f61dab9'
  - url: 'https://git.kernel.org/stable/c/29480b05e6e226594dc11ccf2a036fbd5cdd0e42'
tags:
  - cve.org
ingestedAt: '2026-10-23T13:24:55.563Z'
---

## Overview

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

usb: hub: use shorter 120ms post resume hold for SS root hubs

Holding a USB3 hub PM runtime reference for 200ms at hub resume triggers
an AMD platform issue.  Users running Android adb report crashes after
adb has been polling and waking up the USB subsystem once a second for
some time.  Vendors are working on a solution.  Disabling USB runtime PM
is one way to prevent this issue, but it is also proven that reducing the
hold time to 120ms in resume also mitigates it.  See Link for more
details.

Reducing the hold time to 120ms for the USB3 roothub is in itself a valid
change and optimization, as the current 200ms is excessive: a root hub
has no upstream suspended hub whose wake propagation needs to be
accounted for, but still need some time for USB3 link training to
complete.

Keep the 200ms hold for external hubs that commit 8f5b7e2bec1c
("usb: hub: fix detection of high tier USB3 devices behind suspended
hubs") is intended for.

## Affected

- `Linux >= 15fea75a788681dd36a869dd90ff4f0461ea0714 < e4df763ba3c4fdd1d9256f7a75a17ab7c5e31db6`
- `Linux >= aec11e5f9c452ef64e2c113637ab89a67a5ceb62 < 2dc82d6a12050c2c678a328cd29837beb367df7d`
- `Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 < e9545dd8bc62596b2a20966be41f39879ea7c8d0`
- `Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 < d7c4a49b41583266e1456d40f37966029f61dab9`
- `Linux >= 8f5b7e2bec1c36578fdaa74a6951833541103e27 < 29480b05e6e226594dc11ccf2a036fbd5cdd0e42`
- `Linux 042959e9b479502a921109224c3abcc3d3cf09a1`
- `Linux 8aa04df2553f29e6249f978a29421f2744a65ffb`
- `Linux e38ca702130b7d70834abdbee58135ca471b2106`
- `Linux 43e53eb8433c332666a222bff8e49aa03a470d0d`
- `Linux 16840c4e102ee5424ab1c49238f0bbf568d13a1c`
- `Linux >= 6.6.100 < 6.6.160`
- `Linux >= 6.12.40 < 6.12.113`
- `Linux >= 5.4.297 < 5.5`
- `Linux >= 5.10.241 < 5.11`
- `Linux >= 5.15.190 < 5.16`
- `Linux >= 6.1.147 < 6.2`
- `Linux >= 6.15.8 < 6.16`
- `Linux 6.16`

## Remediation

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