CVE-2026-98111 (GCVE-0-2026-98111)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:35 – Updated: 2026-09-25 10:35
VLAI
Title
Bluetooth: btintel: validate version TLV value lengths
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: validate version TLV value lengths btintel_parse_version_tlv() verifies that a complete TLV is present in the response, but it does not ensure that the value is long enough for the specific TLV type. A short value can therefore cause an out-of-bounds read through get_unaligned_le16(), get_unaligned_le32(), or memcpy(). Reject values shorter than the minimum required by each known TLV type. Also reject responses that do not contain the Command Complete Status field.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 57375beef71af9f245e88357fa71d9600650cb7d , < 83499ac3ca62e43ed40f7574b13ed398a6891511 (git)
Affected: 57375beef71af9f245e88357fa71d9600650cb7d , < 76948d207d0978a613ce06a05cba07284a5578a7 (git)
Affected: 57375beef71af9f245e88357fa71d9600650cb7d , < 5ec43df2830b73e004147303bf7914ca884d6770 (git)
Affected: 57375beef71af9f245e88357fa71d9600650cb7d , < a086c0892969bf8a0151b0f12bd14a68827c88b2 (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: validate version TLV value lengths\n\nbtintel_parse_version_tlv() verifies that a complete TLV is present in\nthe response, but it does not ensure that the value is long enough for\nthe specific TLV type. A short value can therefore cause an\nout-of-bounds read through get_unaligned_le16(), get_unaligned_le32(),\nor memcpy().\n\nReject values shorter than the minimum required by each known TLV type.\nAlso reject responses that do not contain the Command Complete Status\nfield."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T10:35:58.728Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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      "title": "Bluetooth: btintel: validate version TLV value lengths",
      "x_generator": {
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  "cveMetadata": {
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    "cveId": "CVE-2026-98111",
    "datePublished": "2026-09-25T10:35:58.728Z",
    "dateReserved": "2026-09-25T10:25:14.316Z",
    "dateUpdated": "2026-09-25T10:35:58.728Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: validate version TLV value lengths\n\nbtintel_parse_version_tlv() verifies that a complete TLV is present in\nthe response, but it does not ensure that the value is long enough for\nthe specific TLV type. A short value can therefore cause an\nout-of-bounds read through get_unaligned_le16(), get_unaligned_le32(),\nor memcpy().\n\nReject values shorter than the minimum required by each known TLV type.\nAlso reject responses that do not contain the Command Complete Status\nfield."
          }
        ],
        "id": "CVE-2026-98111",
        "lastModified": "2026-09-25T11:17:42.223",
        "metrics": {},
        "published": "2026-09-25T11:17:42.223",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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