CVE-2026-64013

ACPI: button: Fix ACPI GPE handler leak during removal

MEDIUM
5.5
CVSS Score
Published: July 19, 2026 at 02:56 PM UTC
Updated: October 15, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.15 ≤ v < 7.0.126.157.1a7e23ec17feecc7bac0d500cea900cace7b50129
Vendor states this is fixed in 614cb8c26c5aa53196ee9b211b76ee618b147d32 (fixed)
Vendor states this is fixed in fe80251152fed5b185f795ef2cd9f7fe9c3162e0 (fixed)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 7.0.12 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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