Microsoft releases emergency update to disable Intel's broken Spectre fix2018-01-29 15:31 by Daniela
Tags: Microsoft, Intel, Spectre
Microsoft has released a new Windows patch to disable Intel's hardware-based mitigation for the Spectre attack due to bugs introduced by Intel's mitigation.
Not only was Intel's fix for the Spectre attack causing reboots and stability issues, but Microsoft also found it resulted in the worse scenario of data loss or corruption in some circumstances.
Unfortunately, Intel discovered earlier this month that the microcode updates are causing machines to reboot. Initially this was confirmed to be the case for Haswell and Broadwell chips; Intel later confirmed that it also applied to Sandy Bridge, Ivy Bridge, Skylake and Kaby Lake parts. Intel's advice was to stop deploying the microcode. A week ago the company said that it had isolated the root cause of reboots, at least for Haswell and Broadwell processors, and that it would soon begin testing a new version.
"Our own experience is that system instability can in some circumstances cause data loss or corruption," Microsoft said. "We understand that Intel is continuing to investigate the potential impact of the current microcode version and encourage customers to review their guidance on an ongoing basis to inform their decisions," it added.
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