From 704e54019a6b589bf7679957d678a9f427f6e5d2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?St=C3=A9phane=20Lesimple?= Date: Sun, 14 Jan 2018 15:10:39 +0100 Subject: [PATCH] is_cpu_vulnerable: add check for old Atoms --- spectre-meltdown-checker.sh | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh index 45e70f5..da5dfda 100755 --- a/spectre-meltdown-checker.sh +++ b/spectre-meltdown-checker.sh @@ -163,7 +163,15 @@ is_cpu_vulnerable() variant2=0 variant3=0 - if grep -q AMD /proc/cpuinfo; then + if grep -q GenuineIntel /proc/cpuinfo; then + # 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 + if grep -qE '^model name.+ Atom\(TM\) CPU +(S|D|N|230|330)' /proc/cpuinfo; then + variant2=1 + variant3=1 + fi + elif grep -q AuthenticAMD /proc/cpuinfo; then # AMD revised their statement about variant2 => vulnerable # https://www.amd.com/en/corporate/speculative-execution variant3=1 @@ -185,6 +193,7 @@ is_cpu_vulnerable() # armv8 vulnerable chips : else + # others are not vulnerable variant1=1 variant2=1 fi