CVE-2025-38609 (GCVE-0-2025-38609)
Vulnerability from cvelistv5
Published
2025-08-19 17:03
Modified
2025-08-28 14:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Check governor before using governor->name Commit 96ffcdf239de ("PM / devfreq: Remove redundant governor_name from struct devfreq") removes governor_name and uses governor->name to replace it. But devfreq->governor may be NULL and directly using devfreq->governor->name may cause null pointer exception. Move the check of governor to before using governor->name.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2731c68f536fddcb71332db7f8d78c5eb4684c04
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/631e101728df2a86b8fb761b49fad9712c651f8a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75323a49aa603cf5484a6d74d0d329e86d756e11
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81f50619370045120c133bfdda5b320c8c97d41e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bab7834c03820eb11269bc48f07c3800192460d2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5632359dbc44862fc1ed04093c1f57529830261
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0479e878d4beb45e73c03e574c59f0a23ccd176
Impacted products
Vendor Product Version
Linux Linux Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
Version: 96ffcdf239de6f9970178bb7d643e16fd9e68ab9
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   Linux Linux Version: 5.11
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/devfreq/devfreq.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "0",
              "versionType": "semver"
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              "version": "5.15.190",
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            },
            {
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              "status": "unaffected",
              "version": "6.1.148",
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              "status": "unaffected",
              "version": "6.6.102",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.42",
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              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17-rc1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM / devfreq: Check governor before using governor-\u003ename\n\nCommit 96ffcdf239de (\"PM / devfreq: Remove redundant governor_name from\nstruct devfreq\") removes governor_name and uses governor-\u003ename to replace\nit. But devfreq-\u003egovernor may be NULL and directly using\ndevfreq-\u003egovernor-\u003ename may cause null pointer exception. Move the check of\ngovernor to before using governor-\u003ename."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-28T14:44:07.842Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/f0479e878d4beb45e73c03e574c59f0a23ccd176"
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          "url": "https://git.kernel.org/stable/c/631e101728df2a86b8fb761b49fad9712c651f8a"
        },
        {
          "url": "https://git.kernel.org/stable/c/81f50619370045120c133bfdda5b320c8c97d41e"
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          "url": "https://git.kernel.org/stable/c/d5632359dbc44862fc1ed04093c1f57529830261"
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        },
        {
          "url": "https://git.kernel.org/stable/c/bab7834c03820eb11269bc48f07c3800192460d2"
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      ],
      "title": "PM / devfreq: Check governor before using governor-\u003ename",
      "x_generator": {
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38609",
    "datePublished": "2025-08-19T17:03:52.542Z",
    "dateReserved": "2025-04-16T04:51:24.029Z",
    "dateUpdated": "2025-08-28T14:44:07.842Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38609\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-19T17:15:39.343\",\"lastModified\":\"2025-08-28T15:15:55.213\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nPM / devfreq: Check governor before using governor-\u003ename\\n\\nCommit 96ffcdf239de (\\\"PM / devfreq: Remove redundant governor_name from\\nstruct devfreq\\\") removes governor_name and uses governor-\u003ename to replace\\nit. But devfreq-\u003egovernor may be NULL and directly using\\ndevfreq-\u003egovernor-\u003ename may cause null pointer exception. Move the check of\\ngovernor to before using governor-\u003ename.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PM/devfreq: Comprobar el gobernador antes de usar governor-\u0026gt;name. El commit 96ffcdf239de (\\\"PM/devfreq: Eliminar el nombre redundante de governor_name de la estructura devfreq\\\") elimina governor_name y usa governor-\u0026gt;name para reemplazarlo. Sin embargo, devfreq-\u0026gt;governor podr\u00eda ser NULL y usar directamente devfreq-\u0026gt;governor-\u0026gt;name podr\u00eda causar una excepci\u00f3n de puntero nulo. Se debe mover la comprobaci\u00f3n del gobernador a antes de usar governor-\u0026gt;name. \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2731c68f536fddcb71332db7f8d78c5eb4684c04\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/631e101728df2a86b8fb761b49fad9712c651f8a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/75323a49aa603cf5484a6d74d0d329e86d756e11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/81f50619370045120c133bfdda5b320c8c97d41e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bab7834c03820eb11269bc48f07c3800192460d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d5632359dbc44862fc1ed04093c1f57529830261\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f0479e878d4beb45e73c03e574c59f0a23ccd176\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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