diff options
| -rwxr-xr-x | spectre-meltdown-checker.sh | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh index 7b3e7dc..a19d4c3 100755 --- a/spectre-meltdown-checker.sh +++ b/spectre-meltdown-checker.sh @@ -1059,6 +1059,8 @@ check_cpu() if [ "$cpuid_arch_capabilities" = -1 ]; then pstatus yellow UNKNOWN elif [ "$cpuid_arch_capabilities" != 1 ]; then + capabilities_rdcl_no=0 + capabilities_ibrs_all=0 pstatus red NO elif [ ! -e /dev/cpu/0/msr ]; then spec_ctrl_msr=-1 @@ -1068,10 +1070,10 @@ check_cpu() # here we use dd, it's the same as using 'rdmsr 0x10a' but without needing the rdmsr tool # if we get a read error, the MSR is not there. bs has to be 8 for msr capabilities=$(dd if=/dev/cpu/0/msr bs=8 count=1 skip=266 iflag=skip_bytes 2>/dev/null | od -t u1 -A n | awk '{print $8}') + capabilities_rdcl_no=0 + capabilities_ibrs_all=0 if [ $? -eq 0 ]; then _debug "capabilities MSR lower byte is $capabilities (decimal)" - capabilities_rdcl_no=0 - capabilities_ibrs_all=0 [ $(( capabilities & 1 )) -eq 1 ] && capabilities_rdcl_no=1 [ $(( capabilities & 2 )) -eq 2 ] && capabilities_ibrs_all=1 _debug "capabilities says rdcl_no=$capabilities_rdcl_no ibrs_all=$capabilities_ibrs_all" |