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

[Andi Kleen]

On Wed, Jan 03, 2001 at 10:20:37PM -0500, David Huggins-Daines wrote:
> Dan Aloni <[EMAIL PROTECTED]> 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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