Riskcovery

CVE-2026-90364

ACPI: processor: Unregister cpufreq notifier on init failure

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c0e0421a60bf468e88cf569fbd727346b138ed04 to before ccee0785030978c49505e04954eee3f30a5f01caAffected
  • c0e0421a60bf468e88cf569fbd727346b138ed04 to before 8f3036c5de8b651880f323e223b1604b6cfbff21Affected
  • c0e0421a60bf468e88cf569fbd727346b138ed04 to before 64976f3b34b07eb866ead4052cefe7e9ff45fd2fAffected
  • c0e0421a60bf468e88cf569fbd727346b138ed04 to before 182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892Affected
  • c0e0421a60bf468e88cf569fbd727346b138ed04 to before 06f32dd67e6b23a05bef0d8183c5335af91c0c3bAffected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.110 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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