---
id: CVE-2026-93820
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI: rockchip: Protect root bus removal with rescan lock

  Hold the pci_rescan_remove_lock lock while stopping and removing a root bus
  to avoid racing with concurrent re…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI: rockchip: Protect root bus removal with rescan lock

  Hold the pci_rescan_remove_lock lock while stopping and removing a root bus
  to avoid racing with concurrent re…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    025308e7c9cd10112b73558c9f63f8f7285fa726
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    ac47d42901859edb504a2890a3a5709c86dbc0c3
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    eaeb9bed3641741aceb0add84a97023bed61e748
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    ebca7e5947720e9d4bd918af3e17720270c50744
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    9b19201f57d87c4d0777621275dbc59bff41b7f2
  - >-
    Linux >= 073d3dbe9a7c38888d8dafe09df421b174a6cffa <
    0bd9611587bb494c33566d825fe34b2705e4b167
  - Linux 4.12
published: '2026-09-24'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:51.790'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93820'
references:
  - url: 'https://git.kernel.org/stable/c/025308e7c9cd10112b73558c9f63f8f7285fa726'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/0bd9611587bb494c33566d825fe34b2705e4b167'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5d566ac3a055f0a6f4890ff0af7cfd7e8ed89652'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9b19201f57d87c4d0777621275dbc59bff41b7f2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ac47d42901859edb504a2890a3a5709c86dbc0c3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/eaeb9bed3641741aceb0add84a97023bed61e748'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ebca7e5947720e9d4bd918af3e17720270c50744'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00173
epssPercentile: 0.06635
ingestedAt: '2026-09-24T16:47:15.892Z'
---

## Overview

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

PCI: rockchip: Protect root bus removal with rescan lock

Hold the pci_rescan_remove_lock lock while stopping and removing a root bus
to avoid racing with concurrent rescan or hotplug operations triggered via
sysfs.  Such races may lead to use-after-free issues or system crashes.

[bhelgaas: commit log]

## Remediation

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