There is no real harm with ptrace and signal rules not being enforced, previous releases did not confine these aspects of process execution; the warning is primarily for the sites where lacking aspects of confinement is a much more important matter.
If I recall correctly, the ptrace and signal features were added to the 14.04 LTS kernel after 3.13.0-16.36 -- probably once this computer boots into a release kernel or newer, these messages will go away on their own. omlk, please consider updating your system as soon as possible; the kernel version you are currently running has a known severe security flaw. Further details can be found at http://www.ubuntu.com/usn/usn-2204-1/ Thanks ** Changed in: cups (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1317893 Title: dist-upgrade Status in “cups” package in Ubuntu: Fix Released Bug description: Warning from profile /usr/sbin/cups-browsed (/etc/apparmor.d/usr.sbin.cups-browsed) ptrace rules not enforced Warning from profile /usr/sbin/cups-browsed (/etc/apparmor.d/usr.sbin.cups-browsed) signal rules not enforced ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-release-upgrader-core 1:0.220.3 ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5 Uname: Linux 3.13.0-16-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Fri May 9 15:36:40 2014 InstallationDate: Installed on 2014-02-20 (77 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140217) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: dist-upgrade UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1317893/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
