CVE-2025-38315 (GCVE-0-2025-38315)
Vulnerability from cvelistv5
Published
2025-07-10 07:42
Modified
2025-07-28 04:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Check dsbr size from EFI variable Since the size of struct btintel_dsbr is already known, we can just start there instead of querying the EFI variable size. If the final result doesn't match what we expect also fail. This fixes a stack buffer overflow when the EFI variable is larger than struct btintel_dsbr.
References
Impacted products
Vendor Product Version
Linux Linux Version: eb9e749c0182affafadfbe5ded4503c4b5a9b57c
Version: eb9e749c0182affafadfbe5ded4503c4b5a9b57c
Version: eb9e749c0182affafadfbe5ded4503c4b5a9b57c
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "git"
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
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              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.15.3",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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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\nBluetooth: btintel: Check dsbr size from EFI variable\n\nSince the size of struct btintel_dsbr is already known, we can just\nstart there instead of querying the EFI variable size. If the final\nresult doesn\u0027t match what we expect also fail. This fixes a stack buffer\noverflow when the EFI variable is larger than struct btintel_dsbr."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:18:26.041Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9427f6081f37c795a8bd29d0ee72a4da3bd64af8"
        },
        {
          "url": "https://git.kernel.org/stable/c/7b8526bb489780ccc0caffc446ecabec83cfe568"
        },
        {
          "url": "https://git.kernel.org/stable/c/3aa1dc3c9060e335e82e9c182bf3d1db29220b1b"
        }
      ],
      "title": "Bluetooth: btintel: Check dsbr size from EFI variable",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38315",
    "datePublished": "2025-07-10T07:42:22.569Z",
    "dateReserved": "2025-04-16T04:51:24.003Z",
    "dateUpdated": "2025-07-28T04:18:26.041Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38315\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-10T08:15:30.477\",\"lastModified\":\"2025-07-10T13:17:30.017\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: btintel: Check dsbr size from EFI variable\\n\\nSince the size of struct btintel_dsbr is already known, we can just\\nstart there instead of querying the EFI variable size. If the final\\nresult doesn\u0027t match what we expect also fail. This fixes a stack buffer\\noverflow when the EFI variable is larger than struct btintel_dsbr.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: btintel: Verificar el tama\u00f1o de dsbr desde la variable EFI. Dado que el tama\u00f1o de struct btintel_dsbr ya se conoce, podemos empezar por ah\u00ed en lugar de consultar el tama\u00f1o de la variable EFI. Si el resultado final no coincide con lo esperado, tambi\u00e9n falla. Esto corrige un desbordamiento del b\u00fafer de pila cuando la variable EFI es mayor que struct btintel_dsbr.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3aa1dc3c9060e335e82e9c182bf3d1db29220b1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7b8526bb489780ccc0caffc446ecabec83cfe568\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9427f6081f37c795a8bd29d0ee72a4da3bd64af8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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