CVE-2026-80759

Full vulnerability record from the local CVENow database.

Description

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

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-04 16:18:00.950000

Last modified

2026-10-19 09:17:09.670000

View original CVE JSON

{
  "id": "CVE-2026-80759",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-04T16:18:00.950",
  "lastModified": "2026-10-19T09:17:09.670",
  "vulnStatus": "Received",
  "cveTags": [],
  "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->data 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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/bluetooth/hci_aml.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "lessThan": "7733b01ed13685773ccda91035a46f87d4cfef7c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "lessThan": "e1534d49a7b8ba728e84b020f6d802aa1cb759d9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "lessThan": "6c70253462902d835e843b470f74aa816d60af80",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "lessThan": "2763b8bcb504e30ec955474f51b99ce42fc62f3b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "37bac77e4649e8158698a60addc22ec4faf5649a",
              "lessThan": "2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/bluetooth/hci_aml.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.12",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.12",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.106",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.47",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1.11",
              "lessThanOrEqual": "7.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.1",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}