You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cve_2021_3490_ebpf_alu32_bounds_check_lpe.rb
    path of file: ./repos/metasploit-framework/modules/exploits/linux/local
    
    the code of the file until where you have to start completion: ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Local
  Rank = GreatRanking

  prepend Msf::Exploit::Remote::AutoCheck
  include Msf::Post::Linux::Priv
  include Msf::Post::Linux::System
  include Msf::Post::Linux::K
    
  def check
    arch = kernel_hardware

    # Could we potentially support x86? Yes, potentially. Will we? Well considering the 5.7 kernel was released
    # in 2020 and official support for x64 kernels ended in 2012 with
    # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=743aa456c1834f76982af44e8b71d1a0b2a82e2
    # combined with the fact that those distros that do have older x86 versions mostly have 4.x or older kernels,
    # and 90% of them have dropped support for x86 kernels a while back, we'll just assume that if its x86, its probably not
    # running an affected Linux kernel.
    unless arch.include?('x86_64')
      return CheckCode::Safe("System architecture #{arch} is not supported")
    end

    if unprivileged_bpf_disabled?
      return CheckCode::Safe('Unprivileged BPF loading is not permitted')
    end