FKIE_CVE-2026-90364

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06f32dd67e6b23a05bef0d8183c5335af91c0c3b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64976f3b34b07eb866ead4052cefe7e9ff45fd2f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f3036c5de8b651880f323e223b1604b6cfbff21
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccee0785030978c49505e04954eee3f30a5f01ca
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/processor_driver.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ccee0785030978c49505e04954eee3f30a5f01ca",
              "status": "affected",
              "version": "c0e0421a60bf468e88cf569fbd727346b138ed04",
              "versionType": "git"
            },
            {
              "lessThan": "8f3036c5de8b651880f323e223b1604b6cfbff21",
              "status": "affected",
              "version": "c0e0421a60bf468e88cf569fbd727346b138ed04",
              "versionType": "git"
            },
            {
              "lessThan": "64976f3b34b07eb866ead4052cefe7e9ff45fd2f",
              "status": "affected",
              "version": "c0e0421a60bf468e88cf569fbd727346b138ed04",
              "versionType": "git"
            },
            {
              "lessThan": "182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892",
              "status": "affected",
              "version": "c0e0421a60bf468e88cf569fbd727346b138ed04",
              "versionType": "git"
            },
            {
              "lessThan": "06f32dd67e6b23a05bef0d8183c5335af91c0c3b",
              "status": "affected",
              "version": "c0e0421a60bf468e88cf569fbd727346b138ed04",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/acpi/processor_driver.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-90364",
  "lastModified": "2026-09-17T17:17:35.480",
  "metrics": {},
  "published": "2026-09-17T17:17:35.480",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/06f32dd67e6b23a05bef0d8183c5335af91c0c3b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/182cd086b31ea4ccc1d8f2ec5b81e988dfe0b892"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/64976f3b34b07eb866ead4052cefe7e9ff45fd2f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8f3036c5de8b651880f323e223b1604b6cfbff21"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccee0785030978c49505e04954eee3f30a5f01ca"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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