---
id: CVE-2026-64013
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPI: button: Fix ACPI GPE handler leak during removal

  Commit a7e23ec17fee ("ACPI: button: Install notifier for system events
  as well") changed the ACPI notify handler…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ACPI: button: Fix ACPI GPE handler leak during removal

  Commit a7e23ec17fee ("ACPI: button: Install notifier for system events
  as well") changed the ACPI notify handler…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 6.15, < 7.0.12'
  - linux_kernel = 7.1
patched:
  - linux_kernel 7.0.12
published: '2026-07-19'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T13:53:57.830'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-64013'
references:
  - url: 'https://git.kernel.org/stable/c/614cb8c26c5aa53196ee9b211b76ee618b147d32'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fe80251152fed5b185f795ef2cd9f7fe9c3162e0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00198
epssPercentile: 0.08857
ingestedAt: '2026-10-13T14:29:01.775Z'
---

## Overview

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

ACPI: button: Fix ACPI GPE handler leak during removal

Commit a7e23ec17fee ("ACPI: button: Install notifier for system events
as well") changed the ACPI notify handler type for ACPI buttons to
ACPI_ALL_NOTIFY, but it forgot to update acpi_button_remove() to reflect
that change.  This leads to leaking the notify handler past driver
removal, which may cause a kernel crash to occur if ACPI notify on
the given device is triggered after removing the driver, and causes a
subsequent probe of the given device with the same driver to fail.

Address this by updating the acpi_remove_notify_handler() call in
acpi_button_remove() as appropriate.

## Affected

- `linux_kernel >= 6.15, < 7.0.12`
- `linux_kernel = 7.1`

## Remediation

Upgrade past the affected range:

- `linux_kernel 7.0.12`