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cleanup: remove superseded atom detection code

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This is now handled properly by checking the CPU
vendor, family, model instead of looking for the
commercial name of the CPU in /proc/cpuinfo
This commit is contained in:
Stéphane Lesimple 2018-01-31 14:55:58 +01:00
parent 247b176882
commit 0267659adc
1 changed files with 1 additions and 10 deletions
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spectre-meltdown-checker.sh
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@ -210,19 +210,10 @@ is_cpu_vulnerable()
variant3=immune variant3=immune
elif [ "$cpu_vendor" = GenuineIntel ]; then elif [ "$cpu_vendor" = GenuineIntel ]; then
# Intel # Intel
# Old Atoms are not vulnerable to spectre 2 nor meltdown
# https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00088&languageid=en-fr
# model name : Genuine Intel(R) CPU N270 @ 1.60GHz
# model name : Intel(R) Atom(TM) CPU N270 @ 1.60GHz
# model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz
if grep -qE '^model name.+ Intel\(R\) (Atom\(TM\) CPU +(S|D|N|230|330)|CPU N[0-9]{3} )' /proc/cpuinfo; then
variant1=vuln
[ -z "$variant2" ] && variant2=immune
[ -z "$variant3" ] && variant3=immune
# https://github.com/crozone/SpectrePoC/issues/1 ^F E5200 => spectre 2 not vulnerable # https://github.com/crozone/SpectrePoC/issues/1 ^F E5200 => spectre 2 not vulnerable
# https://github.com/paboldin/meltdown-exploit/issues/19 ^F E5200 => meltdown vulnerable # https://github.com/paboldin/meltdown-exploit/issues/19 ^F E5200 => meltdown vulnerable
# model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz # model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
elif grep -qE '^model name.+ Pentium\(R\) Dual-Core[[:space:]]+CPU[[:space:]]+E[0-9]{4}K? ' /proc/cpuinfo; then if grep -qE '^model name.+ Pentium\(R\) Dual-Core[[:space:]]+CPU[[:space:]]+E[0-9]{4}K? ' /proc/cpuinfo; then
variant1=vuln variant1=vuln
[ -z "$variant2" ] && variant2=immune [ -z "$variant2" ] && variant2=immune
variant3=vuln variant3=vuln