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CVE-2026-80759

Bluetooth: hci_aml: validate firmware segment lengths

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.12.106, 6.18.47, 7.1.11, 7.2.1
None on Exploit-DB, Metasploit or GitHub

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 37bac77e4649e8158698a60addc22ec4faf5649a · fixed in 7733b01ed13685773ccda91035a46f87d4cfef7c; From 37bac77e4649e8158698a60addc22ec4faf5649a · fixed in e1534d49a7b8ba728e84b020f6d802aa1cb759d9; From 37bac77e4649e8158698a60addc22ec4faf5649a · fixed in 6c70253462902d835e843b470f74aa816d60af80; From 37bac77e4649e8158698a60addc22ec4faf5649a · fixed in 2763b8bcb504e30ec955474f51b99ce42fc62f3b; From 37bac77e4649e8158698a60addc22ec4faf5649a · fixed in 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4

  • Linux Linux

    6.12

  • KernelLinux

    From 6.12.0 · fixed in 6.12.106; From 6.13.0 · fixed in 6.18.47; From 6.19.0 · fixed in 7.1.11; From 7.2.0 · fixed in 7.2.1

References 5

git.kernel.org