An integer underflow may occur due to lack of check when received data length from font_mgr_qsee_request_service is bigger than the minimal value of the segment header which may result in a buffer overflow in Snapdragon Automobile Snapdragon Mobile Snapdragon Wear in MDM9206 MDM9607 MDM9650 SD 210/SD 212/SD 205 SD 425 SD 430 SD 450 SD 625 SD 650/52 SD 820 SD 820A SD 835 SD 845 SD 850.