Vulnerability-Lookup

GHSA-RFM8-6V7M-6RJ9

Vulnerability from github – Published: 2026-08-15 15:30 – Updated: 2026-08-15 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btintel: Validate length before parsing diagnostics TLV

btintel_diagnostics() accesses tlv->val[0] without first validating that the diagnostics VSE is long enough to contain that field, so may cause reading data beyond the received frame.

Fix by validating the length before access.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74532"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T13:17:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Validate length before parsing diagnostics TLV\n\nbtintel_diagnostics() accesses tlv-\u003eval[0] without first validating\nthat the diagnostics VSE is long enough to contain that field, so\nmay cause reading data beyond the received frame.\n\nFix by validating the length before access.",
  "id": "GHSA-rfm8-6v7m-6rj9",
  "modified": "2026-08-15T15:30:35Z",
  "published": "2026-08-15T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74532"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74532 (GCVE-0-2026-74532)

Vulnerability from cvelistv5 – Published: 2026-08-15 12:27 – Updated: 2026-08-17 05:21

Title

Bluetooth: btintel: Validate length before parsing diagnostics TLV

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Validate length before parsing diagnostics TLV btintel_diagnostics() accesses tlv->val[0] without first validating that the diagnostics VSE is long enough to contain that field, so may cause reading data beyond the received frame. Fix by validating the length before access.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/c31be902ccbbb0b2c…
https://git.kernel.org/stable/c/dd20e30bdbd707ea8…
https://git.kernel.org/stable/c/c618a9a5b08ea2e17…
https://git.kernel.org/stable/c/6ec9c3dc52302b891…
https://git.kernel.org/stable/c/b640ff9af3c809ff5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: af395330abed142a2685bf3d17a938544816bf3c , < c31be902ccbbb0b2c23159a1481dce80d1f9753d (git) Affected: af395330abed142a2685bf3d17a938544816bf3c , < dd20e30bdbd707ea8ced581f3d7f9e9854634b17 (git) Affected: af395330abed142a2685bf3d17a938544816bf3c , < c618a9a5b08ea2e17bddf4e948be9f75d408fca4 (git) Affected: af395330abed142a2685bf3d17a938544816bf3c , < 6ec9c3dc52302b891513f608f5fb478349b15ab3 (git) Affected: af395330abed142a2685bf3d17a938544816bf3c , < b640ff9af3c809ff5ea2077fbba17df1594ec1e4 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.151 , ≤ 6.6.* (semver) Unaffected: 6.12.103 , ≤ 6.12.* (semver) Unaffected: 6.18.44 , ≤ 6.18.* (semver) Unaffected: 7.1.8 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c31be902ccbbb0b2c23159a1481dce80d1f9753d",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            },
            {
              "lessThan": "dd20e30bdbd707ea8ced581f3d7f9e9854634b17",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
              "lessThan": "6ec9c3dc52302b891513f608f5fb478349b15ab3",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            },
            {
              "lessThan": "b640ff9af3c809ff5ea2077fbba17df1594ec1e4",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.151",
                  "versionStartIncluding": "6.4",
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                },
                {
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                },
                {
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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: Validate length before parsing diagnostics TLV\n\nbtintel_diagnostics() accesses tlv-\u003eval[0] without first validating\nthat the diagnostics VSE is long enough to contain that field, so\nmay cause reading data beyond the received frame.\n\nFix by validating the length before access."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:21:15.978Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d"
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"
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      ],
      "title": "Bluetooth: btintel: Validate length before parsing diagnostics TLV",
      "x_generator": {
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      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74532",
    "datePublished": "2026-08-15T12:27:46.597Z",
    "dateReserved": "2026-08-15T05:44:03.912Z",
    "dateUpdated": "2026-08-17T05:21:15.978Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-RFM8-6V7M-6RJ9

CVE-2026-74532 (GCVE-0-2026-74532)

Tags

Sightings

Nomenclature