---
id: CVE-2026-97430
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  xhci: Prevent queuing new commands if xhci is inaccessible

  Refuse to queue a new command on the command ring if xHC is marked
  inaccessible with the HCD_FLAG_HW_ACCESSI…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  xhci: Prevent queuing new commands if xhci is inaccessible

  Refuse to queue a new command on the command ring if xHC is marked
  inaccessible with the HCD_FLAG_HW_ACCESSI…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    0e2eaa000e4e5ad46b7cf8fcf1e4a2585ef8b5a8
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    add3aeb74e2c7d82fa1035af2a027666c6906210
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    a215190ef68ca3602fe00674e0efffad71beb3aa
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    fec259e46d44317379834a44115fae66122dc93f
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    a50948386256b24d73971b9a152fe1de808446ab
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    a05e54c1eeaba10414aa2fde94589a7c9885f2a1
  - >-
    Linux >= 5535b1d5f8885695c6ded783c692e3c0d0eda8ca <
    82b70c799281cc24506085be978b829149ba0ca4
  - Linux 2.6.37
published: '2026-09-24'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:54.737'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97430'
references:
  - url: 'https://git.kernel.org/stable/c/0e2eaa000e4e5ad46b7cf8fcf1e4a2585ef8b5a8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/82b70c799281cc24506085be978b829149ba0ca4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a05e54c1eeaba10414aa2fde94589a7c9885f2a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a215190ef68ca3602fe00674e0efffad71beb3aa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a50948386256b24d73971b9a152fe1de808446ab'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/add3aeb74e2c7d82fa1035af2a027666c6906210'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fec259e46d44317379834a44115fae66122dc93f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97430.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-97430'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2540480'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-97430'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97430'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97430.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00173
epssPercentile: 0.0665
ingestedAt: '2026-09-24T16:47:15.882Z'
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-841
---

## Overview

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

xhci: Prevent queuing new commands if xhci is inaccessible

Refuse to queue a new command on the command ring if xHC is marked
inaccessible with the HCD_FLAG_HW_ACCESSIBLE.

HCD_FLAG_HW_ACCESSIBLE is set and cleared in suspend and resume.

Also print a warning if xhci is being suspended with commands
still pending on the command ring.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · 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 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97430.json)