This service will be undergoing maintenance at 00:00 UTC, 2017-10-23 It is expected to last about 30 minutes
Bug 820286 - Audit log gets filled with a call to rpm by qemu-kvm that has not been escaped properly
Audit log gets filled with a call to rpm by qemu-kvm that has not been escape...
Status: CLOSED ERRATA
Product: Fedora
Classification: Fedora
Component: setroubleshoot (Show other bugs)
16
x86_64 Linux
unspecified Severity low
: ---
: ---
Assigned To: Daniel Walsh
Fedora Extras Quality Assurance
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2012-05-09 10:14 EDT by Edvard Fagerholm
Modified: 2013-01-09 07:01 EST (History)
12 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2012-05-20 19:54:11 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Edvard Fagerholm 2012-05-09 10:14:04 EDT
Description of problem:

Yanking a USB stick for a Garmin HRM while it has been passed to a Win 7 VM under virt-manager causes setroubleshootd to consume 100% CPU 2G of memory and audit.log gets filled with the following:

type=SYSCALL msg=audit(1336526335.863:206633): arch=c000003e syscall=16 success=no exit=-13 a0=1b a1=4008550d a2=7fff12ffb3a0 
a3=7fff12ffb530 items=0 ppid=1 pid=13343 auid=4294967295 uid=107 gid=107 euid=107 suid=107 fsuid=107 egid=107 sgid=107 fsgid=1
07 tty=(none) ses=4294967295 comm="qemu-kvm" exe="/usr/bin/qemu-kvm" subj=system_u:system_r:svirt_t:s0:c298,c678 key=(null)
type=AVC msg=audit(1336526335.863:206634): avc:  denied  { ioctl } for  pid=13343 comm="qemu-kvm" path=2F6465762F6275732F75736
22F3030312F303038202864656C6574656429 dev="devtmpfs" ino=523297 scontext=system_u:system_r:svirt_t:s0:c298,c678 tcontext=syste
m_u:object_r:usb_device_t:s0 tclass=chr_file

The following happens when trying to parse the content of audit.log in order to run audit2allow:

# sealert -a /var/log/audit/audit.log
  0% donesh: -c: line 0: syntax error near unexpected token `('
sh: -c: line 0: `{ rpm -qf /dev/bus/usb/001/008 (deleted); } 2>&1'
sh: -c: line 0: syntax error near unexpected token `('
sh: -c: line 0: `{ rpm -qf /dev/bus/usb/001/008 (deleted); } 2>&1'
sh: -c: line 0: syntax error near unexpected token `('
sh: -c: line 0: `{ rpm -qf /dev/bus/usb/001/008 (deleted); } 2>&1'
sh: -c: line 0: syntax error near unexpected token `('

and keeps printing this forever, since audit.log is over 100MB.

Version-Release number of selected component (if applicable):

Fedora 16 with all current updates as of 5/9/2012.

How reproducible:

Happens every time.
  
Actual results:

System gets unresponsive since setroubleshootd uses all CPU and memory and starts trashing the disk.

Expected results:

Win 7 should react like it was a USB stick pulled out of a physical machine it was installed on. Nothing else should happen.
Comment 1 Daniel Walsh 2012-05-09 13:24:43 EDT
Strange, I don't get this error with setroubleshoot in F17.

But we should definitely add a check to make sure the file exists.

If you run ausearch -m avc, what output are you getting?
Comment 2 Daniel Walsh 2012-05-09 14:08:03 EDT
Fixed in setroubleshoot-3.1.11-1.fc16
Comment 3 Fedora Update System 2012-05-09 14:20:16 EDT
setroubleshoot-3.1.11-1.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/setroubleshoot-3.1.11-1.fc16
Comment 4 Fedora Update System 2012-05-10 10:32:46 EDT
Package setroubleshoot-3.1.11-1.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing setroubleshoot-3.1.11-1.fc16'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2012-7549/setroubleshoot-3.1.11-1.fc16
then log in and leave karma (feedback).
Comment 5 Fedora Update System 2012-05-20 19:54:11 EDT
setroubleshoot-3.1.11-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Note You need to log in before you can comment on or make changes to this bug.