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authorAlkorin <github@alkorin.fr>2018-01-08 15:31:59 +0100
committerAlkorin <github@alkorin.fr>2018-01-08 15:56:19 +0100
commit26564206dbceef7b698ab10a2e4f18e99f0883a4 (patch)
tree09e36e69f70aba47ae09626f3d46c24b4d4b33bf
parentf8ca11e56a7608d5fed21b49aef669c5377400a0 (diff)
downloadspectre-meltdown-checker-26564206dbceef7b698ab10a2e4f18e99f0883a4.tar.lz
spectre-meltdown-checker-26564206dbceef7b698ab10a2e4f18e99f0883a4.tar.xz
spectre-meltdown-checker-26564206dbceef7b698ab10a2e4f18e99f0883a4.zip
Do not execute checks if we already found that PTI is enabled
-rwxr-xr-xspectre-meltdown-checker.sh4
1 files changed, 2 insertions, 2 deletions
diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh
index 1ae4ead..c6515c4 100755
--- a/spectre-meltdown-checker.sh
+++ b/spectre-meltdown-checker.sh
@@ -260,7 +260,7 @@ elif [ -e /boot/config-$(uname -r) ]; then
kpti_support=1
fi
fi
-if [ -e /boot/System.map-$(uname -r) ]; then
+if [ "$kpti_support" = 0 -a -e /boot/System.map-$(uname -r) ]; then
# it's not an elif: some backports don't have the PTI config but still include the patch
# so we try to find an exported symbol that is part of the PTI patch in System.map
kpti_can_tell=1
@@ -268,7 +268,7 @@ if [ -e /boot/System.map-$(uname -r) ]; then
kpti_support=1
fi
fi
-if [ -n "$vmlinux" ]; then
+if [ "$kpti_support" = 0 -a -n "$vmlinux" ]; then
# same as above but in case we don't have System.map and only vmlinux, look for the
# nopti option that is part of the patch (kernel command line option)
kpti_can_tell=1