peter/spectre-meltdown-checker
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cosmetic + v0.02

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Stéphane Lesimple
2018-01-07 16:22:30 +01:00
parent ef7c0d7ec5
commit 9ed1fcd98a
2 changed files with 27 additions and 22 deletions
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14
spectre-meltdown-checker.sh
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@ -1,7 +1,7 @@
#! /bin/sh
# Spectre & Meltdown checker
# Stephane Lesimple, v0.00.01
VERSION=0.01
# Stephane Lesimple
VERSION=0.02
pstatus()
{
@ -81,11 +81,11 @@ elif ! which objdump >/dev/null 2>&1; then
pstatus yellow UNKNOWN "missing 'objdump' tool, please install it, usually it's in the binutils package"
else
nb_lfence=$(objdump -D "$vmlinux" | grep -wc lfence)
if [ "$nb_lfence" -lt 50 ]; then
pstatus red NO "only $nb_lfence lfence opcodes found, should be >= 50"
if [ "$nb_lfence" -lt 60 ]; then
pstatus red NO "only $nb_lfence opcodes found, should be >= 60"
status=1
else
pstatus green YES "$nb_lfence opcodes found, which is >= 50"
pstatus green YES "$nb_lfence opcodes found, which is >= 60"
status=2
fi
rm -f $vmlinux
@ -155,7 +155,7 @@ if [ "$mounted_debugfs" = 1 ]; then
fi
/bin/echo "* Mitigation 2"
/bin/echo -n "* Kernel recompiled with retpoline: "
/bin/echo -n "* Kernel recompiled with retpolines: "
pstatus yellow UNKNOWN "check not yet implemented"
/bin/echo -ne "> \033[46m\033[30mSTATUS:\033[0m "
@ -164,7 +164,7 @@ if grep -q AMD /proc/cpuinfo; then
elif [ "$ibrs_enabled" = 1 -o "$ibrs_enabled" = 2 ]; then
pstatus green "NOT VULNERABLE" "IBRS mitigates the vulnerability"
else
pstatus red VULNERABLE "IBRS hardware + kernel support OR retpoline-compiled kernel are needed to mitigate the vulnerability"
pstatus red VULNERABLE "IBRS hardware + kernel support OR retpolines-compiled kernel are needed to mitigate the vulnerability"
fi
# MELTDOWN