func: void CWE590_Free_Memory_Not_on_Heap__free_char_declare_34_bad() char * data ; CWE590_Free_Memory_Not_on_Heap__free_char_declare_34_unionType myUnion ; data = NULL; char dataBuffer [ 100 ] ; memset ( dataBuffer , 'A' , 100 - 1 ); dataBuffer [ 100 - 1 ] = '\0'; data = dataBuffer; myUnion . unionFirst = data; char * data = myUnion . unionSecond ; free ( data ); 