Seth is correct, when a message is sent across a unix based file socket their is a cross check (one check for the sender, and another for the receiver). In this case the receiving end of the message (rsyslogd) does not have the correct permission (r perm).
The reason this is reported with the pid and comm of other processes is that the check (for both sender and receiver) is done in the kernel context of the sending process. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1425398 Title: Apparmor uses rsyslogd profile for different processes - utopic HWE Status in apparmor package in Ubuntu: New Status in linux-lts-utopic package in Ubuntu: New Bug description: Hi. I've noticed that apparmor loads /usr/sbin/rsyslogd profile for completely unrelated processes: Feb 25 08:36:19 emma kernel: [ 134.796218] audit: type=1400 audit(1424842579.429:245): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=4002 comm="sshd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 Feb 25 08:36:23 emma kernel: [ 139.330989] audit: type=1400 audit(1424842583.965:246): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=4080 comm="sudo" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 Feb 25 08:35:42 emma kernel: [ 97.912402] audit: type=1400 audit(1424842542.565:241): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=2436 comm="whoopsie" requested_mask="r" denied_mask="r" fsuid=103 ouid=0 Feb 25 08:34:43 emma kernel: [ 38.867998] audit: type=1400 audit(1424842483.546:226): apparmor="DENIED" operation="sendmsg" profile="/usr/sbin/rsyslogd" name="/dev/log" pid=3762 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 I'm not sure how apparmor decides which profile to use for which task, but is shouldn't load '/usr/sbin/rsyslogd' profile for sshd/ntpd/etc. I'm running: # lsb_release -rd Description: Ubuntu 14.04.2 LTS Release: 14.04 # dpkg -l | grep apparmor ii apparmor 2.8.95~2430-0ubuntu5.1 amd64 User-space parser utility for AppArmor ii apparmor-profiles 2.8.95~2430-0ubuntu5.1 all Profiles for AppArmor Security policies ii apparmor-utils 2.8.95~2430-0ubuntu5.1 amd64 Utilities for controlling AppArmor ii libapparmor-perl 2.8.95~2430-0ubuntu5.1 amd64 AppArmor library Perl bindings ii libapparmor1:amd64 2.8.95~2430-0ubuntu5.1 amd64 changehat AppArmor library ii python3-apparmor 2.8.95~2430-0ubuntu5.1 amd64 AppArmor Python3 utility library ii python3-libapparmor 2.8.95~2430-0ubuntu5.1 amd64 AppArmor library Python3 bindings # uname -a Linux emma 3.16.0-31-generic #41~14.04.1-Ubuntu SMP Wed Feb 11 19:30:13 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1425398/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
