Bluetooth: hci_aml: validate firmware segment lengths (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c
- https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9
- https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80
- https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b
- https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4
European references
- ENISA EUVD · EUVD-2026-71402
- GCVE · GCVE-0-2026-80759
CERT-FR advisories
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 37bac77e4649e8158698a60addc22ec4faf5649a < 7733b01ed13685773ccda91035a46f87d4cfef7c ; affected 37bac77e4649e8158698a60addc22ec4faf5649a < e1534d49a7b8ba728e84b020f6d802aa1cb759d9 ; affected 37bac77e4649e8158698a60addc22ec4faf5649a < 6c70253462902d835e843b470f74aa816d60af80 ; affected 37bac77e4649e8158698a60addc22ec4faf5649a < 2763b8bcb504e30ec955474f51b99ce42fc62f3b ; affected 37bac77e4649e8158698a60addc22ec4faf5649a < 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4 |
| Linux · Linux | affected 6.12 ; unaffected 0 < 6.12 ; unaffected 6.12.106 ≤ 6.12.* ; unaffected 6.18.47 ≤ 6.18.* ; unaffected 7.1.11 ≤ 7.1.* ; unaffected 7.2.1 ≤ 7.2.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |