Unable to Test the "kvm_vma" | Linux: KVM VM_IO|VM_PFNMAP vma mishandling;-CVE-2021-22543

[Github-By-G]

Since there's no direct context or Readme.md about the repo testing environment;

Based on the limited information on git and the internet findings;

I set my testing environment to;

host machine( ubuntu20 with kernel 5.8.0-41-generic) >> Installed VMM >> created Centos 8.58

The 5.8.041-generic was found from https://github.com/google/security-research/blob/master/pocs/linux/kvm_vma/kernel_code.asm

Why centOS 8.5 is found on https://cve.tuxcare.com/els/cve/CVE-2021-22543

kernel version:

how ever getting error: attempt to define a local label before any non-local labels

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Don't understand where am wrong!!! especially about my testing environment