peter/spectre-meltdown-checker
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spectre-meltdown-checker
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Fixes for FreeBSD to parse CPU info.

This commit is contained in:
Matt Christian 2020-02-06 19:54:27 +01:00 committed by Stéphane Lesimple
parent 7d2a510146
commit 3d21dae168
1 changed files with 16 additions and 12 deletions
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28
spectre-meltdown-checker.sh
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@ -369,7 +369,7 @@ is_cpu_vulnerable()
# 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
if grep -qE '^model name.+ Pentium\(R\) Dual-Core[[:space:]]+CPU[[:space:]]+E[0-9]{4}K? ' "$procfs/cpuinfo"; then if echo "$cpu_friendly_name" | grep -qE 'Pentium\(R\) Dual-Core[[:space:]]+CPU[[:space:]]+E[0-9]{4}K?'; then
variant1=vuln variant1=vuln
[ -z "$variant2" ] && variant2=immune [ -z "$variant2" ] && variant2=immune
variant3=vuln variant3=vuln
@ -1487,7 +1487,13 @@ parse_cpu_details()
cpu_stepping=$(grep '^stepping' "$procfs/cpuinfo" | awk '{print $3}' | grep -E '^[0-9]+$' | head -1) cpu_stepping=$(grep '^stepping' "$procfs/cpuinfo" | awk '{print $3}' | grep -E '^[0-9]+$' | head -1)
cpu_ucode=$( grep '^microcode' "$procfs/cpuinfo" | awk '{print $3}' | head -1) cpu_ucode=$( grep '^microcode' "$procfs/cpuinfo" | awk '{print $3}' | head -1)
else else
cpu_friendly_name=$(sysctl -n hw.model) cpu_vendor=$( dmesg | grep -i -m1 'Origin=' | cut -f2 -w | cut -f2 -d= | cut -f2 -d\" )
cpu_family=$( dmesg | grep -i -m1 'Family=' | cut -f4 -w | cut -f2 -d= )
cpu_family=$(( cpu_family ))
cpu_model=$( dmesg | grep -i -m1 'Model=' | cut -f5 -w | cut -f2 -d= )
cpu_model=$(( cpu_model ))
cpu_stepping=$( dmesg | grep -i -m1 'Stepping=' | cut -f6 -w | cut -f2 -d= )
cpu_friendly_name=$(sysctl -n hw.model 2>/dev/null)
fi fi
if [ -n "$SMC_MOCK_CPU_FRIENDLY_NAME" ]; then if [ -n "$SMC_MOCK_CPU_FRIENDLY_NAME" ]; then
@ -1562,7 +1568,7 @@ parse_cpu_details()
fi fi
echo "$cpu_ucode" | grep -q ^0x && cpu_ucode=$(( cpu_ucode )) echo "$cpu_ucode" | grep -q ^0x && cpu_ucode=$(( cpu_ucode ))
ucode_found=$(printf "model 0x%x family 0x%x stepping 0x%x ucode 0x%x cpuid 0x%x" "$cpu_model" "$cpu_family" "$cpu_stepping" "$cpu_ucode" "$cpu_cpuid") ucode_found=$(printf "family 0x%x model 0x%x stepping 0x%x ucode 0x%x cpuid 0x%x" "$cpu_family" "$cpu_model" "$cpu_stepping" "$cpu_ucode" "$cpu_cpuid")
# also define those that we will need in other funcs # also define those that we will need in other funcs
# taken from https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/intel-family.h # taken from https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/x86/include/asm/intel-family.h
@ -2022,6 +2028,8 @@ if [ "$opt_live" = 1 ]; then
if [ -n "$custom_arch_kernel" ] && [ -e "$custom_arch_kernel" ]; then if [ -n "$custom_arch_kernel" ] && [ -e "$custom_arch_kernel" ]; then
opt_kernel="$custom_arch_kernel" opt_kernel="$custom_arch_kernel"
fi fi
# FreeBSD:
[ -e "/boot/kernel/kernel" ] && opt_kernel="/boot/kernel/kernel"
fi fi
# system.map # system.map
@ -4812,16 +4820,12 @@ check_mds_bsd()
kernel_md_clear=0 kernel_md_clear=0
fi fi
else else
if command -v "strings" >/dev/null 2>&1; then if grep -Fq hw.mds_disable $opt_kernel; then
if strings /boot/kernel/kernel | grep -Fq hw.mds_disable; then pstatus green YES
pstatus green YES kernel_md_clear=1
kernel_md_clear=1
else
kernel_md_clear=0
pstatus yellow NO
fi
else else
pstatus yellow UNKNOWN kernel_md_clear=0
pstatus yellow NO
fi fi
fi fi