GHSA-Q82P-XQW2-Q8M2
Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32In 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": [],
"aliases": [
"CVE-2026-90364"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:35Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor: Unregister cpufreq notifier on init failure\n\nacpi_processor_driver_init() registers the cpufreq policy notifier before\nregistering the ACPI processor driver and setting up CPU hotplug state.\n\nIf driver_register() or cpuhp_setup_state() fails, the error path only\nunregisters the ACPI processor driver and the idle driver. The cpufreq\nnotifier remains registered even though initialization failed.\n\nMirror the module exit path on the init failure path and unregister the\ncpufreq notifier when it has been registered.",
"id": "GHSA-q82p-xqw2-q8m2",
"modified": "2026-09-17T18:32:02Z",
"published": "2026-09-17T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90364"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/06f32dd67e6b23a05bef0d8183c5335af91c0c3b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/64976f3b34b07eb866ead4052cefe7e9ff45fd2f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8f3036c5de8b651880f323e223b1604b6cfbff21"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ccee0785030978c49505e04954eee3f30a5f01ca"
}
],
"schema_version": "1.4.0",
"severity": []
}
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