CVE-2012-0217 Intel's sysret Kernel Privilege Escalation and
FreeBSD 6.2/6.3
Poul-Henning Kamp
phk at phk.freebsd.dk
Fri Jul 13 14:42:13 UTC 2012
In message <201207130831.59211.jhb at freebsd.org>, John Baldwin writes:
>Every FreeBSD/amd64 kernel in existent is vulnerable. In truth, my personal
>opinion is that Intel screwed up their implementation of that instruction
>whereas AMD got it right, and we are merely working around Intel's CPU bug. :(
Given that the instruction set of AMD64 is defined by AMD originally,
while Intel was trying very hard to ram Itanic down everybodys
throat, that diagnosis is a given: Intel copied AMD, and difference
in functionality is a screwup on Intels part, even if they documented
their screwup in their manual.
TL;DR: Which part of "compatible" doesn't Intel get ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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