[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Mathew Hodson]

** Tags removed: verification-needed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Mathew Hodson]

** Changed in: isc-dhcp (Ubuntu Wily)
   Status: Invalid => Won't Fix

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Launchpad Bug Tracker]

This bug was fixed in the package isc-dhcp - 4.2.4-7ubuntu12.5

---
isc-dhcp (4.2.4-7ubuntu12.5) trusty; urgency=medium

  * debian/apparmor-profile.dhclient: Add the attach_disconnected flag to 
prevent
disconnected path denials (LP: #1568485).

 -- Jorge Niedbalski   Fri, 15 Apr 2016
14:44:06 +0200

** Changed in: isc-dhcp (Ubuntu Trusty)
   Status: Fix Committed => Fix Released

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

** Changed in: isc-dhcp (Ubuntu Wily)
   Status: Confirmed => Invalid

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Seth Arnold]

bug 1574226 appears to be a run-of-the-mill "something broke" report.
The error message in the logs is:

invoke-rc.d: initscript isc-dhcp-server, action "start" failed.

The package in this SRU has the following change:

-/sbin/dhclient {
+/sbin/dhclient flags=(attach_disconnected) {

isc-dhcp-server is unrelated to this profile.

I think the best course of action is to remove the 'verification-failed'
on this change, add bot-stop-nagging to bug 1574226 and ask pitti or the
SRU team to re-investigate https://bugs.launchpad.net/ubuntu/+source
/isc-dhcp/+bug/1529815


Logs: https://launchpadlibrarian.net/255808584/DpkgTerminalLog.txt
Debdiff: 
http://launchpadlibrarian.net/253957125/isc-dhcp_4.2.4-7ubuntu12.3_4.2.4-7ubuntu12.5.diff.gz

Thanks

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Brian Murray]

** Tags removed: verification-failed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Mathew Hodson]

** Changed in: isc-dhcp (Ubuntu Wily)
   Importance: Undecided => Medium

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Chris J Arges]

Hello dino99, or anyone else affected,

Accepted isc-dhcp into trusty-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/isc-
dhcp/4.2.4-7ubuntu12.5 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: isc-dhcp (Ubuntu Trusty)
   Status: In Progress => Fix Committed

** Tags added: verification-needed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: isc-dhcp (Ubuntu Wily)
   Status: New => Confirmed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Jorge Niedbalski]

** Changed in: isc-dhcp (Ubuntu Trusty)
   Status: New => In Progress

** Changed in: isc-dhcp (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: isc-dhcp (Ubuntu Trusty)
 Assignee: (unassigned) => Jorge Niedbalski (niedbalski)

** Patch added: "Trusty Patch"
   
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1568485/+attachment/4637656/+files/lp-1568485-trusty.debdiff

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Chris J Arges]

** Also affects: isc-dhcp (Ubuntu Trusty)
   Importance: Undecided
   Status: New

** Also affects: isc-dhcp (Ubuntu Wily)
   Importance: Undecided
   Status: New

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Launchpad Bug Tracker]

This bug was fixed in the package isc-dhcp - 4.3.3-5ubuntu12

---
isc-dhcp (4.3.3-5ubuntu12) xenial; urgency=medium

  * debian/apparmor/sbin.dhclient: Add the attach_disconnected flag to prevent
disconnected path denials as seen with the new 1.1.93 based
network-manager (LP: #1568485)

 -- Tyler Hicks   Wed, 13 Apr 2016 10:02:12 -0500

** Changed in: isc-dhcp (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Tyler Hicks]

** Changed in: isc-dhcp (Ubuntu)
   Status: In Progress => Confirmed

** Changed in: isc-dhcp (Ubuntu)
   Status: Confirmed => Fix Committed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Tyler Hicks]

@dino99 the apparmor 2.10.95-0ubuntu2 upload was not intended to fix
this bug. The dhclient profile is in the iscp-dhcp package and it will
need to be updated.

** Package changed: apparmor (Ubuntu) => isc-dhcp (Ubuntu)

** Changed in: isc-dhcp (Ubuntu)
   Importance: Undecided => High

** Changed in: isc-dhcp (Ubuntu)
 Assignee: (unassigned) => Tyler Hicks (tyhicks)

** Changed in: isc-dhcp (Ubuntu)
   Status: Confirmed => In Progress

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

Feedback #13

Sadly the error is still logged:
kernel: audit: type=1400 audit(1460540782.347:30): apparmor="DENIED" 
operation="sendmsg" info="Failed name lookup - disconnected path" error=-13 p  
.

/etc/apparmor.d/sbin.dhclient  still has "/sbin/dhclient { " ; it should
now use "  /sbin/dhclient flags=(attach_disconnected) { " instead

apparmor (2.10.95-0ubuntu2)


** Changed in: apparmor (Ubuntu)
   Status: Incomplete => Confirmed

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

apparmor 2.10.95-0ubuntu2 might fix this issue (Bug #1569316)

** Changed in: apparmor (Ubuntu)
   Status: Confirmed => Incomplete

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Cody P]

However, I still get an IP from dhcp, based on the logs, it seems
dhclient retries this operation many times and it eventually succeeds.
Maybe a race condition?

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Cody P]

Hitting this as well as of the recent upgrade to network manager
(1.1.93) came along with #1569316

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Tyler Hicks]

@dino99 The apparmor="STATUS" messages are harmless. They're simply
alerting you that an AppArmor profile has been loaded into the kernel.

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

@Tyler

this has happened on a single home desktop, which is a wily to xenial upgrade. 
After following #4 howto (resumed in #5) the error is gone.

This is indeed only something i've discovered when browsing the journalctl. 
There was no sad effect detected previously finding that logged.
Actually there is still lot of apparmor's entries logged that should get some 
tweaks i suppose.

grep apparmor /var/log/syslog
Apr 12 09:03:19 u64 apparmor[423]:  * Starting AppArmor profiles
Apr 12 09:03:19 u64 apparmor[423]: Skipping profile in /etc/apparmor.d/disable: 
usr.bin.firefox
Apr 12 09:03:19 u64 apparmor[423]: Skipping profile in /etc/apparmor.d/disable: 
usr.sbin.rsyslogd
Apr 12 09:03:19 u64 apparmor[423]:...done.
Apr 12 09:03:19 u64 kernel: [   16.971764] audit: type=1400 
audit(1460444594.681:2): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/sbin/dhclient" pid=737 comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   16.971772] audit: type=1400 
audit(1460444594.681:3): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" 
pid=737 comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   16.971778] audit: type=1400 
audit(1460444594.681:4): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=737 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   16.971783] audit: type=1400 
audit(1460444594.681:5): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=737 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.053201] audit: type=1400 
audit(1460444594.765:6): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=736 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.053208] audit: type=1400 
audit(1460444594.765:7): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session//chromium" 
pid=736 comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.120424] audit: type=1400 
audit(1460444594.833:8): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/sbin/cups-browsed" pid=750 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.125640] audit: type=1400 
audit(1460444594.837:9): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=749 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.125647] audit: type=1400 
audit(1460444594.837:10): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=749 
comm="apparmor_parser"
Apr 12 09:03:19 u64 kernel: [   17.125652] audit: type=1400 
audit(1460444594.837:11): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/telepathy/telepathy-*//pxgsettings" pid=749 
comm="apparmor_parser"
Apr 12 09:04:29 u64 ureadahead[290]: ureadahead:apparmor_api: Ignored relative 
path
Apr 12 10:43:40 u64 apparmor[413]:  * Starting AppArmor profiles
Apr 12 10:43:40 u64 apparmor[413]: Skipping profile in /etc/apparmor.d/disable: 
usr.bin.firefox
Apr 12 10:43:40 u64 apparmor[413]: Skipping profile in /etc/apparmor.d/disable: 
usr.sbin.rsyslogd
Apr 12 10:43:40 u64 apparmor[413]:...done.
Apr 12 10:43:40 u64 kernel: [   19.148755] audit: type=1400 
audit(1460450617.859:2): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/sbin/dhclient" pid=724 comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.148763] audit: type=1400 
audit(1460450617.859:3): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" 
pid=724 comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.148768] audit: type=1400 
audit(1460450617.859:4): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=724 
comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.148773] audit: type=1400 
audit(1460450617.859:5): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=724 
comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.271821] audit: type=1400 
audit(1460450617.979:6): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=723 
comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.271828] audit: type=1400 
audit(1460450617.979:7): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session//chromium" 
pid=723 comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   19.350519] audit: type=1400 
audit(1460450618.059:8): apparmor="STATUS" operation="profile_load" 
profile="unconfined" name="/usr/sbin/cups-browsed" pid=737 
comm="apparmor_parser"
Apr 12 10:43:40 u64 kernel: [   

[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Tyler Hicks]

@dino99 - can you give any more details about how you're hitting this
bug in Xenial? I've enabled -proposed and do not experience this denial.

Note that Paolo de Rosa is hitting it while provisioning a machine with
MAAS.

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Paolo de Rosa]

I'm hitting the same bug, during the commissioning using trusty image in
maas with wily kernel, due to intel NICs (supported only with kernel
4.2)

We hit the bug running dhclient:

root@messy-body:~# dhclient -nw eth2
dhclient: error while loading shared libraries: libc.so.6: cannot stat shared 
object: Permission denied 

isc-dhcp-client  4.2.4-7ubuntu12.4


** Attachment added: "dmesg of node to be commissioned"
   
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1568485/+attachment/4634403/+files/dmseg

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

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

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

Thanks John

have made the change:
#/sbin/dhclient {
  /sbin/dhclient flags=(attach_disconnected) {

and rebooted: the error is gone now.

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[John Johansen]

It needs to be set in the profile file
   /etc/apparmor.d/sbin.dhclient

apply the following change

--- a/sbin.dhclient 2016-02-25 06:32:17.0 -0800
+++ b/sbin.dhclient 2016-04-10 12:41:41.826906424 -0700
@@ -3,7 +3,7 @@
 # Author: Jamie Strandboge 
 #include 
 
-/sbin/dhclient {
+/sbin/dhclient flags=(attach_disconnected) {
   #include 
   #include 
   #include 

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[dino99]

Thanks Christian,

but i wonder where to set that setting. Is it into:  
/sys/kernel/security/apparmor/profiles
 or somewhere else ?
In fact it seems that there is no kernel's 'profile' set at all

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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[Bug 1568485] Re: kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED" operation="sendmsg" info="Failed name lookup - disconnected path" error=-13

[Christian Boltz]

To get things working, add
flags=(attach_disconnected)
to the profile and reload it.

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Title:
  kernel: audit: type=1400 audit(1460259033.648:34): apparmor="DENIED"
  operation="sendmsg" info="Failed name lookup - disconnected path"
  error=-13

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