Re: security patch

[Chris Wright <chrisw@osdl.org>]

* breno@kalangolinux.org (breno@kalangolinux.org) wrote:
> I'm doing a new feature for linux kernel 2.6 to protect against all kinds of buffer
> overflow. It works with new sys_control() system call controling if a process can or can't
> call a system call ie. sys_execve();

This is insufficient to protect against buffer overflow.  You are
re-inventing something that's been done multiple times.  Each are
arguably more effective.  Look at the seccomp option in current kernels.
Look also to policy enforcement via something expressive such as
SELinux.

> I think it can be an option in linux kernel.

We've got what we need in the kernel now.

thanks,
-chris