peter/spectre-meltdown-checker
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fix: fwdb: don't use local db if it's older than our builtin version

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This commit is contained in:
Stéphane Lesimple 2019-11-23 22:02:49 +01:00
parent fa7f814f4f
commit e01f97ee75
1 changed files with 13 additions and 4 deletions
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17
spectre-meltdown-checker.sh
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@ -1764,12 +1764,21 @@ is_xen_domU()
fi
}
builtin_dbversion=$(awk '/^# %%% MCEDB / { print $4 }' "$0")
if [ -r "$mcedb_cache" ]; then
mcedb_source="$mcedb_cache"
mcedb_info="local firmwares DB "$(grep -E '^# %%% MCEDB ' "$mcedb_source" | cut -c13-)
else
# we have a local cache file, but it might be older than the builtin version we have
local_dbversion=$( awk '/^# %%% MCEDB / { print $4 }' "$mcedb_cache")
# sort -V sorts by version number
older_dbversion=$(printf "%b\n%b" "$local_dbversion" "$builtin_dbversion" | sort -V | head -n1)
if [ "$older_dbversion" = "$builtin_dbversion" ]; then
mcedb_source="$mcedb_cache"
mcedb_info="local firmwares DB $local_dbversion"
fi
fi
# if mcedb_source is not set, either we don't have a local cached db, or it is older than the builtin db
if [ -z "$mcedb_source" ]; then
mcedb_source="$0"
mcedb_info="builtin firmwares DB "$(grep -E '^# %%% MCEDB ' "$mcedb_source" | cut -c13-)
mcedb_info="builtin firmwares DB $builtin_dbversion"
fi
read_mcedb()
{