Date: Thu, 10 Sep 1998 00:16:19 -0600 From: Warner Losh <imp@village.org> To: freebsd-hackers@FreeBSD.ORG Subject: Idea re stack and system calls. Message-ID: <199809100616.AAA09917@harmony.village.org>
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Hmmmm. Never mind. It turns out that one can execute data fairly trivially, so the "egg" would only need copy part of itself to the start of data and jump to that. Better to make the stack non-executable, which has its own set of problems that have been beaten to death here, so I'll not repeat them. The idea of putting the firewall at the system call location was interesting while it lasted... :-( Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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