FYI - the remaining related rules that were blocking us are now SRU'ed.
For now I was verifying with manually increaseing the prlimit and things 
worked, therefore I assume that this bug over here is the remaining one for the 
overall case that was initially reported.

So I dupped the other bug onto this one to let the reporter be notified.

P.S. If we would have known in advance it would just have been another
task on the other bug, but well we are always smarter after the fact.

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https://bugs.launchpad.net/bugs/1679704

Title:
  libvirt profile is blocking global setrlimit despite having no rlimit
  rule

Status in apparmor package in Ubuntu:
  In Progress

Bug description:
  Hi,
  while debugging bug 1678322 I was running along apparmor issues.
  Thanks to jjohansen we debugged some of it and eventually I was asked to 
report to a bug.

  Symptom:
  [ 8976.950635] audit: type=1400 audit(1491310016.224:48): apparmor="DENIED" 
operation="setrlimit" profile="/usr/sbin/libvirtd" pid=10034 comm="libvirtd" 
rlimit=memlock value=1610612736

  But none of the profiles has any rlimit statement in it:
  $ grep -Hirn limit /etc/apparmor*
  /etc/apparmor.d/sbin.dhclient:58:  # such, if the dhclient3 daemon is 
subverted, this effectively limits it to
  /etc/apparmor.d/abstractions/ubuntu-helpers:16:# Limitations:
  /etc/apparmor.d/abstractions/ubuntu-helpers:64:  # in limited libraries so 
glibc's secure execution should be enough to not
  /etc/apparmor.d/cache/.features:13:rlimit {mask {cpu fsize data stack core 
rss nproc nofile memlock as locks sigpending msgqueue nice rtprio rttime

  
  The profile contains a child profile which makes reading the dumps a bit 
painful, but I'll attach them anyway for you to take a look.
  To "recreate" if needed check out bug 1678322 - TL;DR hot-add some VFs via 
libvirt.

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