important · Bluetooth — Firmware
A malformed channel map can transiently disable Qualcomm Bluetooth controllers.
Affects
Qualcomm Bluetooth controller firmware spanning mobile, compute, audio, fixed-wireless, XR and networking chipsets.
A nearby device supplies a channel map with too few used channels while adaptive frequency hopping is fully enabled, triggering a controller buffer over-read.
Detail and 1 source
The established result is temporary Bluetooth unavailability, not code execution or persistent compromise.
Qualcomm shared corrected proprietary code with customers, but end-user OEM firmware availability is not established.
Sources