spectre-meltdown-checker

Spectre and Meltdown mitigation detection tool. More information: <https://manned.org/spectre-meltdown-checker>.

Install

All systems
curl cmd.cat/spectre-meltdown-checker.sh
Debian Debian
apt-get install spectre-meltdown-checker
Ubuntu
apt-get install spectre-meltdown-checker
image/svg+xml Kali Linux
apt-get install spectre-meltdown-checker
Fedora
dnf install spectre-meltdown-checker
Windows (WSL2)
sudo apt-get update sudo apt-get install 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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