What is a “memory stomp”?

Question

I just came across this blog post which mentions “stomping memory”:

a C++ program which is easily capable of stomping memory (something you prob

Answer 1

Other answers basically are correct, but I would like to give an example.

int a[10], i;       
for (i = 0; i < 11 ; i++)
    a[i] = 0;

---

int i, a[10];     
for (i = 0; i < 11 ; i++)
    a[i] = 0;

These samples may lead into infinite loop (or may not lead), because it is undefined behavior.

Very likely variable i in memory is stored just after array. So accessing a[10] could actually access i in other words it could reset loop counter.

I think it is good example that demonstrates memory "stomping".