Not yet scoredPublished Sep 17, 2026

CVE-2026-90364ACPI: processor: Unregister cpufreq notifier on init failure

Updated under an hour ago (Oct 27, 2026, 9:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from c0e0421a60bf468e88cf569fbd727346b138ed04 before ccee0785030978c49505e04954eee3f30a5f01ca; from c0e0421a60bf468e88cf569fbd727346b138ed04 before 8f3036c5de8b651880f323e223b1604b6cfbff21; from c0e0421a60bf468e88cf569fbd727346b138ed04 before 64976f3b34b07eb866ead4052cefe7e9ff45fd2f; from c0e0421a60bf468e88cf569fbd727346b138ed04 before 182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892; from c0e0421a60bf468e88cf569fbd727346b138ed04 before 06f32dd67e6b23a05bef0d8183c5335af91c0c3b	CNA record

References

References

https://git.kernel.org/stable/c/ccee0785030978c49505e04954eee3f30a5f01ca
https://git.kernel.org/stable/c/8f3036c5de8b651880f323e223b1604b6cfbff21
https://git.kernel.org/stable/c/64976f3b34b07eb866ead4052cefe7e9ff45fd2f
https://git.kernel.org/stable/c/182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892
https://git.kernel.org/stable/c/06f32dd67e6b23a05bef0d8183c5335af91c0c3b

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.