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SubjectStopping buffer-overflow security exploits using page protection
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Hi,

Please see http://technocrat.net/964824712/ . Is there any good
reason that we can not run Linux executables with the execute permission
turned off, by default, on all stack and data pages? Wouldn't this stop
buffer-overflow security exploits that try to inject executable code onto
the stack or into function tables? i386 won't support it, but other
architectures do.

Thanks

Bruce Perens

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