test_096_proc_entries_unreadable in kernel security test failed with 4.4 X-kvm

The test failed with:
  ERROR: test_096_proc_entries_unreadable (__main__.KernelSecurityTest)
  sensitive files in /proc are not world readable
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File "./test-kernel-security.py", line 1584, in test_096_proc_entries_unreadable
      self.assertEqual(os.stat(name).st_mode & mask, expected, '%s is world readable' % (name))
  OSError: [Errno 2] No such file or directory: '/proc/slabinfo'

Steps to reproduce:
  Deploy the node with Xenial 4.4 kernel, install linux-kvm
  sudo apt-get install python-minimal
  git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests -b master-next
  git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest
  rm -fr autotest/client/tests
  ln -sf ~/autotest-client-tests autotest/client/tests
  AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local --verbose autotest/client/tests/ubuntu_qrt_kernel_security/control

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-1019-kvm 4.4.0-1019.24
ProcVersionSignature: User Name 4.4.0-1019.24-kvm 4.4.98
Uname: Linux 4.4.0-1019-kvm x86_64
NonfreeKernelModules: signpost
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
Date: Mon Apr 2 16:53:43 2018
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)