---
id: CVE-2026-100072
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPI: platform: Use acpi_bus_get_primary_device()

  The acpi_get_first_physical_node() usage in acpi_platform_fill_resource()
  and acpi_create_platform_device() is genera…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPI: platform: Use acpi_bus_get_primary_device()

  The acpi_get_first_physical_node() usage in acpi_platform_fill_resource()
  and acpi_create_platform_device() is genera…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3b95bd160547f56a68aeb972c33ae9511e7a8380 <
    c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71
  - >-
    Linux >= 3b95bd160547f56a68aeb972c33ae9511e7a8380 <
    a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd
  - Linux 4.6
published: '2026-09-25'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T14:10:59.253'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100072'
references:
  - url: 'https://git.kernel.org/stable/c/a9ba4dd2f18bf3f439d9ef0d8f375f90360ba1bd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c9d202d3b6c28e8c779cd2f2b10d2f7ab665ca71'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100072.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-100072'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2541429'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-100072'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100072'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-100072.mbox
  - url: 'https://git.kernel.org/stable/c/a75e5de593ef158feb17989bff7730c5a3d82503'
  - url: 'https://git.kernel.org/stable/c/527a497fb2ef77a95170eefe2007e2c4c957bd2c'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00156
epssPercentile: 0.04682
ingestedAt: '2026-09-25T14:09:46.376Z'
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-825
---

## Overview

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

ACPI: platform: Use acpi_bus_get_primary_device()

The acpi_get_first_physical_node() usage in acpi_platform_fill_resource()
and acpi_create_platform_device() is generally unsafe because in theory
the device returned by it may be freed at any time [1].

It is also inefficient because acpi_get_first_physical_node() is called
multiple times for the same argument which can be avoided.

Address these issues by using acpi_bus_get_primary_device() instead of
acpi_get_first_physical_node() and adjusting the code to call it just
once at the beginning of and acpi_create_platform_device() and drop
the device reference acquired by it upon the return from that function.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, 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 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100072.json)