[Bionic][Pull Request] apparmor bug fixes

[John Johansen]

This is a set of bug fixes cherry-picked from apparmor upstream


The following changes since commit f02c5a422e9026ff83ca56dd6b1b1164f408ee8b:

  UBUNTU: Ubuntu-4.15.0-12.13 (2018-03-07 22:09:44 +0100)

are available in the git repository at:

  ssh://kernel.ubuntu.com/srv/kernel.ubuntu.com/git/jj/ubuntu-artful.git bionic-pr

for you to fetch changes up to 2a35d23c7af96c2d14a3fb20db0a696eec0fae15:

  apparmor: fix mediation of prlimit (2018-04-11 15:03:38 -0700)

----------------------------------------------------------------
Colin Ian King (1):
      apparmor: fix memory leak on buffer on error exit path

John Johansen (5):
      apparmor: fix logging of the existence test for signals
      apparmor: make signal label match work when matching stacked labels
      apparmor: audit unknown signal numbers
      apparmor: fix dangling symlinks to policy rawdata after replacement
      apparmor: fix mediation of prlimit

 security/apparmor/apparmorfs.c        | 128 ++++++++++++++++++++++++++--------
 security/apparmor/include/audit.h     |   5 +-
 security/apparmor/include/sig_names.h |   5 +-
 security/apparmor/ipc.c               |  50 +++++--------
 security/apparmor/resource.c          |   2 +-
 5 files changed, 125 insertions(+), 65 deletions(-)