Date: Mon, 21 Jan 2019 08:05:10 +1300 From: Tycho Andersen <tycho@...ho.ws> To: Luc Van Oostenryck <luc.vanoostenryck@...il.com> Cc: linux-sparse@...r.kernel.org, kernel-hardening@...ts.openwall.com Subject: Re: [RFC v1 0/4] static analysis of copy_to_user() Hey Luc, On Fri, Dec 21, 2018 at 11:47:19PM +0100, Luc Van Oostenryck wrote: > On Thu, Dec 20, 2018 at 12:59:27PM -0700, Tycho Andersen wrote: > > Hi all, > > > > A while ago I talked with various people about whether some static > > analsys of copy_to_user() could be productive in finding infoleaks. > > Unfortunately, due to the various issues outlined in the patch notes, it > > doesn't seem like it is. Perhaps these checks are useful to put in just > > to future proof ourselves against these sorts of issues, though. > > > > Anyway, here's the code. Thoughts welcome! > > Hi, > > I'm taking the first patch directly but I won't be able to look > closer at the other patches until next week. Any chance you can take a peek at these? Cheers, Tycho
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