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[Chris Davies <ohl9hoj1aepaingeu2@xxxxxxxxxxxxx>]

Seeing the same issue on Linux desktopthink 3.16.0-31-generic #41~14.04.1-Ubuntu.
I've noticed after a 'random' change of activity (eg opening a whole bunch of windows, using a different port, i'm unable to use the network without a system restart.

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https://bugs.launchpad.net/bugs/1417658

Title:
  apparmor denied operation file_inherit from networkmanager

Status in apparmor package in Ubuntu:
  Confirmed

Bug description:
  Hallo,

  on Kubuntu 14.04.x dmesg shows me the following apparmor messages;

  Is this normal or is this a security issue together with network-
  manager?

  [   16.171766] audit: type=1400 audit(1422595680.679:68): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2229 comm="nm-dhcp-client." lport=10320 family="inet" sock_type="dgram" protocol=17
  [   16.171772] audit: type=1400 audit(1422595680.679:69): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2229 comm="nm-dhcp-client." lport=21985 family="inet6" sock_type="dgram" protocol=17
  [   16.199936] audit: type=1400 audit(1422595680.707:70): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2246 comm="nm-dhcp-client." lport=10320 family="inet" sock_type="dgram" protocol=17
  [   16.199943] audit: type=1400 audit(1422595680.707:71): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2246 comm="nm-dhcp-client." lport=21985 family="inet6" sock_type="dgram" protocol=17
  [   16.201369] audit: type=1400 audit(1422595680.707:72): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2248 comm="nm-dhcp-client." lport=10320 family="inet" sock_type="dgram" protocol=17
  [   16.201379] audit: type=1400 audit(1422595680.707:73): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2248 comm="nm-dhcp-client." lport=21985 family="inet6" sock_type="dgram" protocol=17
  [   17.206342] audit: type=1400 audit(1422595681.711:74): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2468 comm="nm-dhcp-client." lport=10320 family="inet" sock_type="dgram" protocol=17
  [   17.206349] audit: type=1400 audit(1422595681.711:75): apparmor="DENIED" operation="file_inherit" profile="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=2468 comm="nm-dhcp-client." lport=21985 family="inet6" sock_type="dgram" protocol=17

  When I logon to KDE, KDE hangs sometimes  for 3sec at the login-
  process , when there is no internet connection (DSL modem did not
  dial-in yet).

  Thanks for your help!
  Best regards, Bernhard

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