Re: System call interposition/unprotecting the table

From: Alan Cox
Date: Tue Aug 14 2007 - 18:35:28 EST


> So even with Alan's hypervisor support the whole thing would be still
> quite holey. The argument of raising the bar also doesn't seem very

Its materially harder, especially with the hypervisor.

> convincing to me, because attackers reuse code too and it's enough
> when someone publishes such code once, then they can cut'n'paste
> it into any exploits forever.

Then you fix the specific case and the game continues.

> In general the .data protection is only considered a debugging
> feature. I don't know why Fedora enables it in their production
> kernels.

That would be because we think you are wrong 8)

Alan
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