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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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