Bluetooth: btintel: Check dsbr size from EFI variable

{
  "id": "34b05cad9f07f2b0ec5db49c98fd3a447e1d31e52e0e41b035bc60463f1ef8bd",
  "url": "https://osv.dev/vulnerability/CVE-2025-38315",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bluetooth: btintel: Check dsbr size from EFI variable",
    "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.",
    "evidence": "osv:CVE-2025-38315",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.34",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38315",
      "aliases": [
        "CVE-2025-38315"
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "9427f6081f37c795a8bd29d0ee72a4da3bd64af8"
                },
                {
                  "fixed": "7b8526bb489780ccc0caffc446ecabec83cfe568"
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                {
                  "fixed": "3aa1dc3c9060e335e82e9c182bf3d1db29220b1b"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38315.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.12.34"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.3"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38315.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.468130050Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3aa1dc3c9060e335e82e9c182bf3d1db29220b1b",
        "https://git.kernel.org/stable/c/7b8526bb489780ccc0caffc446ecabec83cfe568",
        "https://git.kernel.org/stable/c/9427f6081f37c795a8bd29d0ee72a4da3bd64af8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38315.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38315",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38315.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38315",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493625,
  "published_at": "2025-07-10T07:42:22.569+00:00"
}