Date: Mon, 26 Aug 1996 00:05:52 -0600 From: Warner Losh <imp@village.org> To: Gene Stark <gene@starkhome.cs.sunysb.edu> Cc: security@freebsd.org Subject: Re: Vulnerability in the Xt library (fwd) Message-ID: <199608260605.AAA07212@rover.village.org> In-Reply-To: Your message of Mon, 26 Aug 1996 01:59:31 EDT
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: However, this new system call could test to make sure that it is : being executed from the text segment, which is read-only, and refuse : to perform if not. Well, couldn't the code that was inserted onto the stack copy itself somewhere handy, make that a read only text segment, and make these calls? Why is the stack segment executable in the first place? Or does Intel require this? Warnerhome | help
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