Re: "Moving" Stack: my poor return address!

[Jon Erickson <matrix () phiral com>]

On Mon, Jul 31, 2006 at 10:03:33PM -0400, Jack C wrote:
> I'm running on Fedora 5. Is this a security thing that's new in the past 
> 2 years or so since I've coded one of these? Is there any way I can 
> either (1) make the stack sit still so I can point into it or (2) find 
> out where it is during execution?

Assuming you're using a 2.6.11+ kernel, stack space is randomized by 
default.  You can turn it off by doing:
 echo 0 > /proc/sys/kernel/randomize_va_space