Bluetooth: hci_aml: validate firmware segment lengths

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80759
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 16:18:00 UTC
Updated2026-09-04 16:18:00 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 37bac77e4649e8158698a60addc22ec4faf5649a 7733b01ed13685773ccda91035a46f87d4cfef7c git Not specified
CNA Linux Linux affected 37bac77e4649e8158698a60addc22ec4faf5649a e1534d49a7b8ba728e84b020f6d802aa1cb759d9 git Not specified
CNA Linux Linux affected 37bac77e4649e8158698a60addc22ec4faf5649a 6c70253462902d835e843b470f74aa816d60af80 git Not specified
CNA Linux Linux affected 37bac77e4649e8158698a60addc22ec4faf5649a 2763b8bcb504e30ec955474f51b99ce42fc62f3b git Not specified
CNA Linux Linux affected 37bac77e4649e8158698a60addc22ec4faf5649a 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4 git Not specified
CNA Linux Linux affected 6.12 Not specified
CNA Linux Linux unaffected 6.12 semver Not specified
CNA Linux Linux unaffected 6.12.106 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.47 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.11 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2.1 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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