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CVE-2026-80759

Unknown

Last modified

CVE-2026-80759 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 37bac77e4649e8158698a60addc22ec4faf5649a, < 7733b01ed13685773ccda91035a46f87d4cfef7c; >= 37bac77e4649e8158698a60addc22ec4faf5649a, < e1534d49a7b8ba728e84b020f6d802aa1cb759d9; >= 37bac77e4649e8158698a60addc22ec4faf5649a, < 6c70253462902d835e843b470f74aa816d60af80; >= 37bac77e4649e8158698a60addc22ec4faf5649a, < 2763b8bcb504e30ec955474f51b99ce42fc62f3b; >= 37bac77e4649e8158698a60addc22ec4faf5649a, < 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4
LinuxLinux6.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80759?
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.
How severe is CVE-2026-80759?
Severity scoring for CVE-2026-80759 is pending analysis.
How do I fix CVE-2026-80759?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST