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CVE-2026-90364

Unknown

Last modified

CVE-2026-90364 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Unregister cpufreq notifier on init failure acpi_processor_driver_init() registers the cpufreq policy notifier before registering the ACPI processor driver and setting up CPU hotplug state. If driver_register() or cpuhp_setup_state() fails, the error path only unregisters the ACPI processor driver and the idle driver. The cpufreq notifier remains registered even though initialization failed. Mirror the module exit path on the init failure path and unregister the cpufreq notifier when it has been registered..

Description

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Unregister cpufreq notifier on init failure acpi_processor_driver_init() registers the cpufreq policy notifier before registering the ACPI processor driver and setting up CPU hotplug state. If driver_register() or cpuhp_setup_state() fails, the error path only unregisters the ACPI processor driver and the idle driver. The cpufreq notifier remains registered even though initialization failed. Mirror the module exit path on the init failure path and unregister the cpufreq notifier when it has been registered.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= c0e0421a60bf468e88cf569fbd727346b138ed04, < ccee0785030978c49505e04954eee3f30a5f01ca; >= c0e0421a60bf468e88cf569fbd727346b138ed04, < 8f3036c5de8b651880f323e223b1604b6cfbff21; >= c0e0421a60bf468e88cf569fbd727346b138ed04, < 64976f3b34b07eb866ead4052cefe7e9ff45fd2f; >= c0e0421a60bf468e88cf569fbd727346b138ed04, < 182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892; >= c0e0421a60bf468e88cf569fbd727346b138ed04, < 06f32dd67e6b23a05bef0d8183c5335af91c0c3b
LinuxLinux6.3

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90364?
In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Unregister cpufreq notifier on init failure acpi_processor_driver_init() registers the cpufreq policy notifier before registering the ACPI processor driver and setting up CPU hotplug state. If driver_register() or cpuhp_setup_state() fails, the error path only unregisters the ACPI processor driver and the idle driver. The cpufreq notifier remains registered even though initialization failed. Mirror the module exit path on the init failure path and unregister the cpufreq notifier when it has been registered.
How severe is CVE-2026-90364?
Severity scoring for CVE-2026-90364 is pending analysis.
How do I fix CVE-2026-90364?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST