{"id":"CVE-2026-80759","title":"Bluetooth: hci_aml: validate firmware segment lengths","summary":"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 checkin…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 7733b01ed13685773ccda91035a46f87d4cfef7c","Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < e1534d49a7b8ba728e84b020f6d802aa1cb759d9","Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 6c70253462902d835e843b470f74aa816d60af80","Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 2763b8bcb504e30ec955474f51b99ce42fc62f3b","Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4","Linux 6.12"],"published":"2026-09-04","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:43:15.994Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80759","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"}],"tags":["cve.org"],"epss":0.00168,"epssPercentile":0.05666,"ingestedAt":"2026-10-19T10:20:54.950Z","slug":"CVE-2026-80759","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 7733b01ed13685773ccda91035a46f87d4cfef7c`\n- `Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < e1534d49a7b8ba728e84b020f6d802aa1cb759d9`\n- `Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 6c70253462902d835e843b470f74aa816d60af80`\n- `Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 2763b8bcb504e30ec955474f51b99ce42fc62f3b`\n- `Linux >= 37bac77e4649e8158698a60addc22ec4faf5649a < 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4`\n- `Linux 6.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}