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Message #91973
[Bug 1199933] Re: apparmor parser in precise does not support block_suspend capability (needed for backported kernels)
My computer has slow boot times because this error
Tail of dmesg
[ 44.672089] input: Bluetooth Laser Travel Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/bluetooth/hci0/hci0:35/input12
[ 44.672198] hid-generic 0005:046D:B008.0001: input,hidraw0: BLUETOOTH HID v3.13 Mouse [Bluetooth Laser Travel Mouse] on 84:a6:c8:b2:0a:83
[ 96.021989] audit_printk_skb: 30 callbacks suppressed
[ 96.021992] type=1400 audit(1420316542.197:28): apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=1370 comm="cupsd" pid=1370 comm="cupsd" capability=36 capname="block_suspend"
[ 118.923987] type=1400 audit(1420316565.113:29): apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=1370 comm="cupsd" pid=1370 comm="cupsd" capability=36 capname="block_suspend"
In my case is not cosmetic.
I need a patch
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https://bugs.launchpad.net/bugs/1199933
Title:
apparmor parser in precise does not support block_suspend capability
(needed for backported kernels)
Status in apparmor package in Ubuntu:
Fix Released
Status in cups package in Ubuntu:
Confirmed
Status in apparmor source package in Precise:
Triaged
Status in apparmor source package in Saucy:
Fix Released
Bug description:
When running an up-to-date precise system with a linux-image-generic-lts-raring HWE kernel (linux 3.8),
the precise verion of apparmor will deny all attempts of apparmored apps to call the block_suspend system call:
For example:
type=AVC msg=audit(XXXXXXXXXX.XXX:XXXXX): apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=1040 comm="cupsd" pid=1040 comm="cupsd" capability=36 capname="block_suspend"
But it is also impossible to add block_suspend to the apparmor profiles, because the AppArmor parser does not know about it:
Setting /usr/sbin/cupsd to enforce mode.
Warning from stdin (line 1): /sbin/apparmor_parser: cannot use or update cache, disable, or force-complain via stdin
AppArmor parser error, in stdin line 24: Invalid capability block_suspend.
This seems to make it impossible to have apparmor not deny block
suspend when using an LTS HWE kernel.
This seems to be related to bug #1052098.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: apparmor 2.7.102-0ubuntu3.7
ProcVersionSignature: Ubuntu 3.8.0-25.37~precise1-generic 3.8.13
Uname: Linux 3.8.0-25-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.3
Architecture: amd64
Date: Wed Jul 10 12:48:24 2013
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
KernLog: Jul 10 12:34:08 gumdrop kernel: [580960.424225] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdline: BOOT_IMAGE=/@/boot/vmlinuz-3.8.0-25-generic root=UUID=981723af-1da9-455d-b776-3a1e8885efde ro rootflags=subvol=@
SourcePackage: apparmor
UpgradeStatus: No upgrade log present (probably fresh install)
audit.log: Error: [Errno 13] Permission denied: '/var/log/audit/audit.log'
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