Weird shellcode issues.

[Marc Soda <marc () aspre net>]

I have been playing around with buffer overflows.  In a couple of
situations /bin/sh won't run when I successful execute my shellcode.
But if change /bin/sh to /bin/ls for example, it works fine.  I am on
an i686 linux box, however I've seen this behavour on freebsd also.
Any thoughts?

-- 

Marc Soda
ASPRE, Inc.
marc () aspre net
http://www.aspre.net/