Protecting Freed Memory

Protecting Freed Memory

When you’re freeing memory, remember to set the memory contents to 0 so no other malicious program can read it after it’s been freed.

//For example#define DATA_SIZEBOOL function(){   char pszData = NULL;  //Memory pointer     //Allocate memory   pszData = new char [DATA_SIZE];   if(pszData == NULL){      return(FALSE);   }   //Reset the memory Initially   memset(pszData, 0, sizeof(char) *  DATA_SIZE);   .... //Use the memory and free it before the return()    statement  //The below part is Important to protect the data  memset(pszData, 0, sizeof(char) *  DATA_SIZE);  delete [] pszData;    return(TRUE);}
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