CVE-2026-90364
kernel: ACPI: processor: Unregister cpufreq notifier on init failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's ACPI (Advanced Configuration and Power Interface) processor initialization. During the setup process, if certain driver registration or CPU hotplug state configurations fail, a cpufreq notifier may remain improperly registered. This improper resource cleanup can lead to resource leaks or unexpected system behavior, potentially impacting system stability and availability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime