CVE-2026-64539 Bluetooth: eir: Fix stack OOB write when prepending the Flags AD

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix stack OOB write when prepending the Flags AD eircreateadvdata builds the advertising data into a fixed-size buffer "size", 31 for the legacy path. It may prepend a 3-byte "Flags" AD structure LEADNOBREDR on an...