How to detect if one of the linked list pointer is corrupted or not ?
0.In case of doubly linked list, by checking the prev/next pointer, we can identify whether the pointer is valid or not...
1.We can add some extra field to store the count of the linked list node from 1,2,... and so on. For any node we can check the value with previous node value
2.we can make use of virtualquery() fn in windows to check whether the given address is valid or not.
In the same way, in linux, we will be having mprotect() fn. if we are passing the invalid address in mprotect(), it will notifies the application
with SIGSEGV signal, Application need to catch this signal and do the necessary things.
