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Esto resulta en un patr\u00f3n de indexaci\u00f3n de doble matriz cuando intenta obtener los datos de cada tensor. Sin embargo, algunos operadores pueden tener algunos tensores opcionales. Para manejar este escenario, el modelo flatbuffer usa un valor negativo \"-1\" como \u00edndice para estos tensores. Esto resulta en un cubierta especial durante la comprobaci\u00f3n en el momento de la carga del modelo. Desafortunadamente, esto significa que el \u00edndice \"-1\" es un \u00edndice tensorial v\u00e1lido para cualquier operador, incluyendo aquellos que no esperan entradas opcionales e incluso para tensores de salida. Por tanto, esto permite escribir y leer desde fuera de los l\u00edmites de los arreglos asignados de la pila, aunque solo en un desplazamiento espec\u00edfico desde el inicio de estos arreglos. Esto resulta en gadgets de lectura y escritura, aunque con un alcance muy limitado. 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