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spectre-meltdown-checker

 
Spectre and Meltdown mitigation detection tool. More information: https://manned.org/spectre-meltdown-checker.
 
  • Check the currently running kernel for Spectre or Meltdown:
     
    sudo spectre-meltdown-checker
     
  • Check the currently running kernel and show an explanation of the actions to take to mitigate a vulnerability:
     
    sudo spectre-meltdown-checker --explain
     
  • Check for specific variants (defaults to all):
     
    sudo spectre-meltdown-checker --variant {{1|2|3|3a|4|l1tf|msbds|mfbds|mlpds|mdsum|taa|mcespc|srbds}}
     
  • Display output using a specific output format:
     
    sudo spectre-meltdown-checker --batch {{text|json|nrpe|prometheus|short}}
     
  • Don't use the /sys interface even if present:
     
    sudo spectre-meltdown-checker --no-sysfs
     
  • Check a non-running kernel:
     
    sudo spectre-meltdown-checker --kernel {{path/to/kernel_file}}

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