Date: Thu, 10 Dec 2015 11:45:35 -0800 From: Kees Cook <keescook@...omium.org> To: "Schaufler, Casey" <casey.schaufler@...el.com> Cc: "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, Catalin Marinas <catalin.marinas@....com>, PaX Team <pageexec@...email.hu>, Michael Ellerman <mpe@...erman.id.au>, Heiko Carstens <heiko.carstens@...ibm.com>, Ralf Baechle <ralf@...ux-mips.org> Subject: Re: Self Introduction On Thu, Dec 10, 2015 at 11:38 AM, Schaufler, Casey <casey.schaufler@...el.com> wrote: >> -----Original Message----- >> From: keescook@...gle.com [mailto:keescook@...gle.com] On Behalf Of >> Kees Cook >> Sent: Thursday, December 10, 2015 11:24 AM >> To: kernel-hardening@...ts.openwall.com >> Cc: Catalin Marinas <catalin.marinas@....com>; PaX Team >> <pageexec@...email.hu>; Michael Ellerman <mpe@...erman.id.au>; Heiko >> Carstens <heiko.carstens@...ibm.com>; Ralf Baechle <ralf@...ux-mips.org> >> Subject: Re: [kernel-hardening] Self Introduction >> >> On Thu, Dec 10, 2015 at 11:07 AM, Daniel Micay <danielmicay@...il.com> >> wrote: >> >> Yeah. PCID was Sandybridge and later? >> > >> > Yeah, that's right. And it defaults to the strong PCID implementation, >> > but there's also a weaker but significantly faster PCID-based one. >> >> Is there anyone from Intel on the list? I would love to see UDEREF >> ported to upstream on x86 (and the non PCID version too). No one has >> stepped up to work on it yet. > > Yes, we're here. There are a couple things we need to do before making > commitments on things, including deciding which are the most urgent > from our perspective. We will be looking at what we want to do with > UDEREF. That's great! Thanks for speaking up. Another area that hasn't seen any traction yet is PAX_USERCOPY. Valdis seems to be MIA, so I'd love to see someone else take on that chunk of work. -Kees -- Kees Cook Chrome OS & Brillo Security
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