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fix(cpu): Pentium Exxxx are vulnerable to Meltdown

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Stéphane Lesimple 2018-01-29 11:18:15 +01:00
parent 90a65965ff
commit 6e544d6055
1 changed files with 9 additions and 7 deletions
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16
spectre-meltdown-checker.sh
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@ -210,21 +210,23 @@ is_cpu_vulnerable()
# model name : Genuine Intel(R) CPU N270 @ 1.60GHz # 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 N270 @ 1.60GHz
# model name : Intel(R) Atom(TM) CPU 330 @ 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
# https://github.com/crozone/SpectrePoC/issues/1 ^F E5200:
# model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
if grep -qE -e '^model name.+ Intel\(R\) (Atom\(TM\) CPU +(S|D|N|230|330)|CPU N[0-9]{3} )' \
-e '^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
[ -z "$variant3" ] && variant3=immune [ -z "$variant3" ] && variant3=immune
# 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
# 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
variant1=vuln
[ -z "$variant2" ] && variant2=immune
variant3=vuln
fi fi
if [ "$capabilities_rdcl_no" = 1 ]; then if [ "$capabilities_rdcl_no" = 1 ]; then
# capability bit for future Intel processor that will explicitly state # capability bit for future Intel processor that will explicitly state
# that they're not vulnerable to Meltdown # that they're not vulnerable to Meltdown
# this var is set in check_cpu() # this var is set in check_cpu()
[ -z "$variant3" ] && variant3=immune variant3=immune
_debug "is_cpu_vulnerable: RDCL_NO is set so not vuln to meltdown" _debug "is_cpu_vulnerable: RDCL_NO is set so not vuln to meltdown"
fi fi
elif grep -q AuthenticAMD /proc/cpuinfo; then elif grep -q AuthenticAMD /proc/cpuinfo; then