Public bug reported:

When running the kernel security tests from qa-regression-testing, it
fails to run 'sudo -u <user>  cat /sys/module/<module>/sections/.text',
because it's now only owner-readable, instead of world-readable.

The failure is copied below.

This has been changes on 4.15-rc1 by commit 
277642dcca765a1955d4c753a5a315ff7f2eb09d ("modules: make sysfs attribute files 
readable by owner only").

We either want to revert that upstream or fix the test.


  
  ======================================================================
  FAIL: test_095_kernel_symbols_missing (__main__.KernelSecurityTest)
  kernel addresses in kallsyms and modules are zeroed out
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File "./test-kernel-security.py", line 1508, in 
test_095_kernel_symbols_missing
      self._check_pK_files(expected)
    File "./test-kernel-security.py", line 1449, in _check_pK_files
      expected)
    File "./test-kernel-security.py", line 1387, in _read_twice
      self.assertEqual(rc, 0, regular)
  AssertionError: cat: /sys/module/virtio_blk/sections/.text: Permission denied
  
  
  ----------------------------------------------------------------------
  Ran 76 tests in 22.227s
  
  FAILED (failures=1)
        END ERROR       ubuntu_qrt_kernel_security.test-kernel-security.py      
ubuntu_qrt_kernel_security.test-kernel-security.py      timestamp=1521472107    
localtime=Mar 19 15:08:27

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Canonical Kernel Team (canonical-kernel-team)
         Status: Confirmed

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

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https://bugs.launchpad.net/bugs/1756963

Title:
  /sys/module/<module>/sections/.text is now 0400 instead of 0444

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