Re: [PROPOSAL/PATCH] Remove PT_GNU_STACK support before 2.6.11

From: Andi Kleen
Date: Sun Feb 06 2005 - 07:53:53 EST


> i.e. all mappings are executable (i.e. READ_IMPLIES_EXEC effect) - the
> intended change. (although i dont fully agree with PT_GNU_STACK being
> about something else than the stack, from a security POV if the stack is
> executable then all bets are off anyway. The heap and all mmaps being
> executable too in that case makes little difference.)

Well, that won't fix mono (and i suspect wine) and the others
who don't use trampolines that the compiler can detect.

And breaking programs silently definitely doesn't make them secure!

-Andi
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