cJSON *cJSON_CreateInt( int64_t num )
{
	cJSON *item = cJSON_New_Item();
	if ( item ) {
		item->type = cJSON_Number;
		item->valuefloat = num;
		item->valueint = num;
	}
	return item;
}
The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.