Vulnerability-Lookup

GHSA-Q3HJ-W9XJ-VC4P

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

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

Bluetooth: hci_aml: validate firmware segment lengths

aml_download_firmware() reads two lengths from the firmware header and uses them to build pointers before checking that the header and segment data are present. A truncated or inconsistent firmware image can make the driver read past firmware->data while constructing TCI commands.

Reject images shorter than the header and ensure that the ICCM and DCCM ranges fit within the loaded firmware before downloading either segment.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80759"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T16:18:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_aml: validate firmware segment lengths\n\naml_download_firmware() reads two lengths from the firmware header and\nuses them to build pointers before checking that the header and segment\ndata are present. A truncated or inconsistent firmware image can make\nthe driver read past firmware-\u003edata while constructing TCI commands.\n\nReject images shorter than the header and ensure that the ICCM and DCCM\nranges fit within the loaded firmware before downloading either segment.",
  "id": "GHSA-q3hj-w9xj-vc4p",
  "modified": "2026-09-04T18:31:24Z",
  "published": "2026-09-04T18:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80759"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80759 (GCVE-0-2026-80759)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:12 – Updated: 2026-09-04 15:12

Title

Bluetooth: hci_aml: validate firmware segment lengths

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_aml: validate firmware segment lengths aml_download_firmware() reads two lengths from the firmware header and uses them to build pointers before checking that the header and segment data are present. A truncated or inconsistent firmware image can make the driver read past firmware->data while constructing TCI commands. Reject images shorter than the header and ensure that the ICCM and DCCM ranges fit within the loaded firmware before downloading either segment.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/7733b01ed13685773…
https://git.kernel.org/stable/c/e1534d49a7b8ba728…
https://git.kernel.org/stable/c/6c70253462902d835…
https://git.kernel.org/stable/c/2763b8bcb504e30ec…
https://git.kernel.org/stable/c/2bf6b9baca9372ea5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 37bac77e4649e8158698a60addc22ec4faf5649a , < 7733b01ed13685773ccda91035a46f87d4cfef7c (git) Affected: 37bac77e4649e8158698a60addc22ec4faf5649a , < e1534d49a7b8ba728e84b020f6d802aa1cb759d9 (git) Affected: 37bac77e4649e8158698a60addc22ec4faf5649a , < 6c70253462902d835e843b470f74aa816d60af80 (git) Affected: 37bac77e4649e8158698a60addc22ec4faf5649a , < 2763b8bcb504e30ec955474f51b99ce42fc62f3b (git) Affected: 37bac77e4649e8158698a60addc22ec4faf5649a , < 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4 (git)
Linux	Linux	Affected: 6.12 Unaffected: 0 , < 6.12 (semver) Unaffected: 6.12.106 , ≤ 6.12.* (semver) Unaffected: 6.18.47 , ≤ 6.18.* (semver) Unaffected: 7.1.11 , ≤ 7.1.* (semver) Unaffected: 7.2.1 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_aml.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7733b01ed13685773ccda91035a46f87d4cfef7c",
              "status": "affected",
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "versionType": "git"
            },
            {
              "lessThan": "e1534d49a7b8ba728e84b020f6d802aa1cb759d9",
              "status": "affected",
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "versionType": "git"
            },
            {
              "lessThan": "6c70253462902d835e843b470f74aa816d60af80",
              "status": "affected",
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "versionType": "git"
            },
            {
              "lessThan": "2763b8bcb504e30ec955474f51b99ce42fc62f3b",
              "status": "affected",
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "versionType": "git"
            },
            {
              "lessThan": "2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4",
              "status": "affected",
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_aml.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.106",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.106",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.47",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.11",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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_aml: validate firmware segment lengths\n\naml_download_firmware() reads two lengths from the firmware header and\nuses them to build pointers before checking that the header and segment\ndata are present. A truncated or inconsistent firmware image can make\nthe driver read past firmware-\u003edata while constructing TCI commands.\n\nReject images shorter than the header and ensure that the ICCM and DCCM\nranges fit within the loaded firmware before downloading either segment."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:12:28.900Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9"
        },
        {
          "url": "https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80"
        },
        {
          "url": "https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b"
        },
        {
          "url": "https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4"
        }
      ],
      "title": "Bluetooth: hci_aml: validate firmware segment lengths",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80759",
    "datePublished": "2026-09-04T15:12:28.900Z",
    "dateReserved": "2026-08-26T14:34:25.791Z",
    "dateUpdated": "2026-09-04T15:12:28.900Z",
    "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-Q3HJ-W9XJ-VC4P

CVE-2026-80759 (GCVE-0-2026-80759)

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