Question

how to make stacks
non- executable?​

Answer 1

Answer:

If you are using 64-bit, then you can enable the NXE flag (bit 11) in EFER and then set bit 63 for PTEs that you want to mark as non-executable.

Answer 2

Answer:

By setting the NX bit, parts of the stack can be designated as non-executable which would mean that in order to execute shellcode from ...