static int opcmp(RAsm *a, ut8 *data, const Opcode *op) {
	if (op->operands[1].type & OT_CONSTANT) {
		if (op->operands[0].type & OT_GPREG &&
		    op->operands[0].type & OT_WORD) {
			return process_16bit_group_1 (a, data, op, 0x38);
		}
		if (!is_al_reg (&op->operands[0])) {
			return process_group_1 (a, data, op);
		}
	}
	return process_1byte_op (a, data, op, 0x38);
}

The product reads data past the end, or before the beginning, of the intended buffer.