Re: [RFC] prevention of syscalls from writable segments, breakingbug exploits

[Alexander Viro]

On Thu, 4 Jan 2001, Dan Aloni wrote:

> Did you notice that question was ambiguous? I understood that sentence in
> its other meaning, i.e, someone insulting Alex ;-)

<choke><sputter> Well, _that_ definitely takes more than posting a patch ;-)

> Anyway, while it is agreed that you can't completely eliminate exploits,
> it is recommended that, it should be at least harder to create them, maybe
> it can even minimize the will to write them.

<shrug> large overhead to every syscall and protection that can be defeated
in a couple of instructions. Doesn't look like a good tradeoff.

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