Read from Unallocated Memory (rua)

Problem: Attempt to read from nonexistent, unallocated, or unmapped memory.
Possible causes: A stray pointer, overflowing the bounds of a heap block or accessing a heap block that has already been freed.
		char c, *a = (char *)malloc(1);
		c = a[1];					/* Read from unallocated memory (rua) */