CVE-2026-98460 (GCVE-0-2026-98460)
Vulnerability from cvelistv5
Published
2026-10-18 15:15
Modified
2026-10-19 09:19
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sock: reject out-of-range OCF values The raw HCI socket security filter has 128 OCF bits per supported OGF, but masks the 10-bit OCF with 127 before looking up the command. An unprivileged socket can therefore submit a reserved OCF that aliases an allowlisted command modulo 128. A conforming controller should reject reserved opcodes. Nevertheless, the security decision must apply to the opcode that will actually be sent, especially since controller-specific behavior is outside the host stack's control. Reject OCF values that cannot be represented by the security filter instead of aliasing them onto an unrelated command.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sock.c"
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          "vendor": "Linux",
          "versions": [
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            },
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              "version": "0",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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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: hci_sock: reject out-of-range OCF values\n\nThe raw HCI socket security filter has 128 OCF bits per supported OGF,\nbut masks the 10-bit OCF with 127 before looking up the command. An\nunprivileged socket can therefore submit a reserved OCF that aliases an\nallowlisted command modulo 128.\n\nA conforming controller should reject reserved opcodes. Nevertheless,\nthe security decision must apply to the opcode that will actually be\nsent, especially since controller-specific behavior is outside the host\nstack\u0027s control.\n\nReject OCF values that cannot be represented by the security filter\ninstead of aliasing them onto an unrelated command."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:19:57.273Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/70b0a27bdde0cb524349c8261202c7c9393cf5e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/598686f5d65b9af2223ed9d22fadba16e09f6ca8"
        },
        {
          "url": "https://git.kernel.org/stable/c/c1fd465ea1c5aef459f9bc3ac602b5353e0f536f"
        },
        {
          "url": "https://git.kernel.org/stable/c/68f0bcc4e16e31ff8dbe6ca93116eb70d7b6ac44"
        },
        {
          "url": "https://git.kernel.org/stable/c/320dedad15e8bbaecc8d2d7fd4189defb84caa85"
        },
        {
          "url": "https://git.kernel.org/stable/c/173457fa3e99ef4188dd0fe63e4dee98d0e441a9"
        },
        {
          "url": "https://git.kernel.org/stable/c/47d67ec424e63e61e9eb58633d43a9d58a1852b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/e93fad891c72deb84cae49430163b384ebcc92b1"
        }
      ],
      "title": "Bluetooth: hci_sock: reject out-of-range OCF values",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98460",
    "datePublished": "2026-10-18T15:15:09.787Z",
    "dateReserved": "2026-09-25T10:25:14.350Z",
    "dateUpdated": "2026-10-19T09:19:57.273Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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