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

From: Andi Kleen (ak@suse.de)
Date: Wed Jan 03 2001 - 22:32:44 EST

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On Wed, Jan 03, 2001 at 10:20:37PM -0500, David Huggins-Daines wrote:
> Dan Aloni <karrde@callisto.yi.org> writes:
>
> > This preliminary, small patch prevents execution of system calls which
> > were executed from a writable segment.
>
> How does signal return work, then?

Newer glibc sets a sa_restorer.

-Andi

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