Date: Fri, 24 Jul 2015 12:01:48 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: [PATCH] fix atexit when it is called from an atexit handler On Fri, Jul 24, 2015 at 08:52:23AM +0200, Jens Gustedt wrote: > > not an input dependent dos attack surface. > > I am not an expert in these, but AFAIR all function pointers that are > stored in predictable places are attack surfaces. This is a valid position, but I would distinguish interface-level attack surfaces, in the form of interfaces that are processing attacker-controlled data, from secondary attack surfaces that are only accessible once you have already exploited a bug that yields undefined behavior. These function pointers are the latter. Rich
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