Date: Wed, 03 Jan 2018 22:14:05 +0100 From: "Julian H. Stacey" <jhs@berklix.com> To: "Freebsd Security" <freebsd-security@freebsd.org> Subject: Re: Intel hardware bug Message-ID: <201801032114.w03LE5ZL017578@fire.js.berklix.net> In-Reply-To: Your message "Tue, 02 Jan 2018 20:52:27 -0500." <477ab39d-286d-d9a2-d31e-fd5f7f1679a8@sentex.net>
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Mike Tancsa wrote: > I am guessing this will impact FreeBSD as well ? > http://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/ More URLs: https://lkml.org/lkml/2017/12/4/709 [patch 00/60] x86/kpti: Kernel Page Table Isolation (was KAISER) https://gruss.cc/files/kaiser.pdf Funded by ERC & EU KASLR is Dead: Long Live KASLR http://pythonsweetness.tumblr.com/post/169166980422/the-mysterious-case-of-the-linux-page-table July 28, 2017 The mysterious case of the Linux Page Table Isolation patches ... Ref to FreeBSD http://www.bbc.co.uk/news/technology-42553818 Major flaw in millions of Intel chips revealed https://www.theguardian.com/technology/2018/jan/03/major-security-flaw-found-intel-processors-computers-windows-mac-os-linux Wed 3 Jan `18 14.24 GMT Major security flaw found in Intel processors https://twitter.com/aionescu/status/948609809540046849 9:39 AM - 3 Jan 2018 MacOS fix the Intel #KPTI Issue? Why yes ... since 10.13.2 https://twitter.com/aionescu/status/948609809540046849 https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx?source=isesitlnk0000001&mrr=1.00 Dec 19, 2017 at 5:10PM Intel's CEO Just Sold A Lot of StocK .. Krzanich is keeping the bare minimum https://github.com/IAIK/KAISER/ Kernel Address Isolation to have Side-channels Efficiently Removed https://cyber.wtf/2017/07/28/negative-result-reading-kernel-memory-from-user-mode/ Upgrades inc reboots of lots of commercial global net servers is predicted once patches are out for each OS in a few days. I wonder what keywords industry will settle on to refer to this by (eg last time "FOOF bug") Options inc.: KASLR, KAISER, Kernel Address tables, Intel software mitigation, x86/kpti: Kernel Page Table Isolation. I don't know what effect this has on FreeBSD, I guess we'll see an authoritative announcement in a bit, when memory management people get time to stop coding & drop back to PR, Meanwhile: https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/bibliography-osinternals.html https://duckduckgo.com/?sites=www.FreeBSD.org%2Cdocs.FreeBSD.org%2Clists.FreeBSD.org%2Cwiki.FreeBSD.org%2Cforums.FreeBSD.org&ka=v&kt=v&kh=1&kj=r2&q=memory+management&submit=Search&ia=web https://www.freebsd.org/doc/en_US.ISO8859-1/articles/vm-design/page-table-optimizations.html https://forums.freebsd.org/threads/63955/page-2 Cheers, Julian -- Julian H. Stacey, Computer Consultant, BSD Linux Unix Systems Engineer, Munich http://berklix.eu/brexit/ UK stole 3,700,000 votes; 700,000 from Brits in EU. http://berklix.eu/queen/ Sign petition before end of 2017.
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