---
id: CVE-2026-97508
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  thunderbolt: Set tb->root_switch to NULL when domain is stopped

  Similarly what we do with the firmware connection manager
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  thunderbolt: Set tb->root_switch to NULL when domain is stopped

  Similarly what we do with the firmware connection manager. This makes
  tb_xdp_handle_request() return er…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    f06e9fbae78a51832211b4495a19412c7d49ecb4
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    99f019d2e9eb79adc485fef8aa8ada2cd0c843e9
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    e56249d8a68e712f3b60e1f3fdbb5b4fea146468
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T05:17:07.300'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97508'
references:
  - url: 'https://git.kernel.org/stable/c/99f019d2e9eb79adc485fef8aa8ada2cd0c843e9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e56249d8a68e712f3b60e1f3fdbb5b4fea146468'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f06e9fbae78a51832211b4495a19412c7d49ecb4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.861Z'
---

## Overview

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

thunderbolt: Set tb->root_switch to NULL when domain is stopped

Similarly what we do with the firmware connection manager. This makes
tb_xdp_handle_request() return error to the remote host. However, we
need to make sure we keep the uuid alive so that we can reply until the
whole domain is released.

## Remediation

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