FKIE_CVE-2026-74532

Vulnerability from fkie_nvd - Published: 2026-08-15 13:17 - Updated: 2026-08-17 06:19
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            },
            {
              "lessThan": "c618a9a5b08ea2e17bddf4e948be9f75d408fca4",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            },
            {
              "lessThan": "6ec9c3dc52302b891513f608f5fb478349b15ab3",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            },
            {
              "lessThan": "b640ff9af3c809ff5ea2077fbba17df1594ec1e4",
              "status": "affected",
              "version": "af395330abed142a2685bf3d17a938544816bf3c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btintel.c"
          ],
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-74532",
  "lastModified": "2026-08-17T06:19:50.120",
  "metrics": {},
  "published": "2026-08-15T13:17:58.500",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6ec9c3dc52302b891513f608f5fb478349b15ab3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b640ff9af3c809ff5ea2077fbba17df1594ec1e4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c31be902ccbbb0b2c23159a1481dce80d1f9753d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c618a9a5b08ea2e17bddf4e948be9f75d408fca4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd20e30bdbd707ea8ced581f3d7f9e9854634b17"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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