CVE-2026-90364 (GCVE-0-2026-90364)
Vulnerability from cvelistv5
Published
2026-09-17 16:09
Modified
2026-10-19 09:02
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: c0e0421a60bf468e88cf569fbd727346b138ed04
Version: c0e0421a60bf468e88cf569fbd727346b138ed04
Version: c0e0421a60bf468e88cf569fbd727346b138ed04
Version: c0e0421a60bf468e88cf569fbd727346b138ed04
Version: c0e0421a60bf468e88cf569fbd727346b138ed04
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/processor_driver.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "6.3"
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              "version": "0",
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:02:23.517Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ccee0785030978c49505e04954eee3f30a5f01ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f3036c5de8b651880f323e223b1604b6cfbff21"
        },
        {
          "url": "https://git.kernel.org/stable/c/64976f3b34b07eb866ead4052cefe7e9ff45fd2f"
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        {
          "url": "https://git.kernel.org/stable/c/182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892"
        },
        {
          "url": "https://git.kernel.org/stable/c/06f32dd67e6b23a05bef0d8183c5335af91c0c3b"
        }
      ],
      "title": "ACPI: processor: Unregister cpufreq notifier on init failure",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90364",
    "datePublished": "2026-09-17T16:09:07.474Z",
    "dateReserved": "2026-09-11T19:38:34.807Z",
    "dateUpdated": "2026-10-19T09:02:23.517Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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