This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed- xenial'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-xenial ** Tags added: verification-needed-yakkety -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1638996 Title: apparmor's raw_data file in securityfs is sometimes truncated Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Committed Status in linux source package in Yakkety: Fix Committed Bug description: Hi, It looks like sometimes apparmor's securityfs output is sometimes truncated, root@zesty:/sys/kernel/security/apparmor/policy/namespaces/lxd-zest_<var-lib-lxd>/profiles/usr.lib.snapd.snap-confine.1# ls -al total 0 drwxr-xr-x 3 root root 0 Nov 3 16:45 . drwxr-xr-x 13 root root 0 Nov 3 16:44 .. -r--r--r-- 1 root root 0 Nov 3 16:45 attach -r--r--r-- 1 root root 0 Nov 3 16:45 mode -r--r--r-- 1 root root 0 Nov 3 16:45 name drwxr-xr-x 3 root root 0 Nov 3 16:45 profiles -r--r--r-- 1 root root 0 Nov 3 16:45 raw_abi -r--r--r-- 1 root root 46234 Nov 3 16:45 raw_data -r--r--r-- 1 root root 0 Nov 3 16:45 raw_hash -r--r--r-- 1 root root 0 Nov 3 16:45 sha1 root@zesty:/sys/kernel/security/apparmor/policy/namespaces/lxd-zest_<var-lib-lxd>/profiles/usr.lib.snapd.snap-confine.1# cat raw_data > /tmp/out root@zesty:/sys/kernel/security/apparmor/policy/namespaces/lxd-zest_<var-lib-lxd>/profiles/usr.lib.snapd.snap-confine.1# ls -al /tmp/out -rw-r--r-- 1 root root 4009 Nov 3 16:55 /tmp/out and 2016-11-03 10:58:01 tych0 jjohansen: hi, http://paste.ubuntu.com/23421551/ 2016-11-03 10:58:18 tych0 it looks like fstat is lying to me about the size of the policy 2016-11-03 10:59:20 @jjohansen tych0: hrmm interesting, can you zip up the /tmp/out file so I can see it looks like a complete policy file? 2016-11-03 11:00:03 @jjohansen something is definitely not right there. hrmmm 2016-11-03 11:00:26 @jjohansen the size is set by the input buffer size 2016-11-03 11:00:28 tych0 jjohansen: http://files.tycho.ws/tmp/out 2016-11-03 11:00:36 tych0 yeah, i assume 2016-11-03 11:01:15 @jjohansen my guess is something is messing up in the seq_file walk of the policy 2016-11-03 11:02:38 @jjohansen tych0: yep the file is truncated, can you open a bug and I will start looking for it 2016-11-03 11:03:14 tych0 jjohansen: sure, just on linux? 2016-11-03 11:03:35 @jjohansen tych0: yeah for now, just linux 2016-11-03 11:03:43 @jjohansen we can add others if needed later 2016-11-03 11:03:44 tych0 jjohansen: FWIW, somehow it seems racy, becasue sometimes it works and sometimes it doesn't To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1638996/+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
