[svlug] Intel CPUs' Kernel Page Table Isolation (KPTI) fix

Rick Moen rick at linuxmafia.com
Mon Jan 22 19:00:35 PST 2018


Quoting Sarah Newman (newmans at sonic.net):

> There will be microcode updates. I don't know if they will be needed
> for systems not running a VM.
> https://lists.xenproject.org/archives/html/xen-devel/2018-01/msg00110.html

Update:  Intel Corp. advised on Monday to _not_ run the existing
mitigation patches Broadwell and Haswell platforms, because they are
causing spontaneous reboots 'and other unpredictable system behavior'.

https://newsroom.intel.com/news/root-cause-of-reboot-issue-identified-updated-guidance-for-customers-and-partners/
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00088&languageid=en-fr

Last week's LWN detailed the status of Linux-kernel mitigations for the
three vulnerabilities.

https://lwn.net/Articles/744287/
(subscriber-only content until Thursday)




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