CVE-2025-39837

platform/x86: asus-wmi: Fix racy registrations

State: Published
Severity: 7.8 High
Published: Sep 19, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 2025

Description

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

platform/x86: asus-wmi: Fix racy registrations

asus_wmi_register_driver() may be called from multiple drivers concurrently, which can lead to the racy list operations, eventually corrupting the memory and hitting Oops on some ASUS machines. Also, the error handling is missing, and it forgot to unregister ACPI lps0 dev ops in the error case.

This patch covers those issues by introducing a simple mutex at acpi_wmi_register_driver() & *_unregister_driver, and adding the proper call of asus_s2idle_check_unregister() in the error path.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
LinuxLinux	feea7bd6b02d43a794e3f065650d89cf8d8e8e59 to before e7a70326fb26b905cfc8fe2366113aa4394733efAffected feea7bd6b02d43a794e3f065650d89cf8d8e8e59 to before 5549202b9c02c2ecbc8634768a3da8d9e82d548dAffected
LinuxLinux	6.16Affected before 6.16Not affected 6.16.6 through 6.16.*Not affected 6.17 and laterNot affected

References

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