Bug 503084

Summary: [RHEL5.4] selinux AVC: denials when running tests. AVC are from a background cron job.
Product: Red Hat Enterprise Linux 5 Reporter: Jeff Burke <jburke>
Component: logwatchAssignee: Ivana Varekova <varekova>
Status: CLOSED DUPLICATE QA Contact: BaseOS QE <qe-baseos-auto>
Severity: medium Docs Contact:
Priority: low    
Version: 5.4CC: atodorov, dwalsh, dzickus, ebenes, jmoyer, mmalik, pbunyan
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://rhts.redhat.com/cgi-bin/rhts/test_log.cgi?id=8302828
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-06-10 17:16:27 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Jeff Burke 2009-05-28 18:45:46 UTC
Description of problem:
 While running RHTS tests. We see some AVC denials reported by tests. After looking into the issue it is the test running causing the AVC denials. It is a background cron job I believe it is logwatch.

Version-Release number of selected component (if applicable):
logwatch-7.3-6.el5

How reproducible:
Seemingly random

Steps to Reproduce:
1. Not sure
  
Actual results:

Saw this first with RHEL5.3-Server-20081203.0
/sbin/ausearch -sv no -m AVC -m USER_AVC -m SELINUX_ERR -ts 12/9/2008 1:1:32
----
 time->Tue Dec 9 01:01:42 2008
 type=SYSCALL msg=audit(1228802502.831:24): arch=14 syscall=5 success=no exit=-13 a0=1005c948 a1=10241 a2=1b6 a3=0 items=0 ppid=30662 pid=30665 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="perl" exe="/usr/bin/perl" subj=system_u:system_r:logwatch_t:s0-s0:c0.c1023 key=(null)

 type=AVC msg=audit(1228802502.831:24): avc:  denied  { write } for pid=30665  comm="perl" name="services" dev=dm-0 ino=2785761
scontext=system_u:system_r:logwatch_t:s0-s0:c0.c1023 tcontext=system_u:object_r:etc_t:s0 tclass=dir

This avc shows logwatch trying to write to a directory named services
that is labeled etc_t. This would indicate that it is somewhere under /etc.

During Don's kernel testing last night we saw this again. 
RHEL5.4-Server-20090526.nightly

 time->Wed May 27 00:27:40 2009
 type=SYSCALL msg=audit(1243398460.748:15): arch=14 syscall=5 success=no  exit=-13 a0=1005c550 a1=10241 a2=1b6 a3=0 items=0 ppid=32608 pid=32611 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="perl" exe="/usr/bin/perl" subj=system_u:system_r:logwatch_t:s0-s0:c0.c1023 key=(null)

 type=AVC msg=audit(1243398460.748:15): avc:  denied  { write } for pid=32611 comm="perl" name="services" dev=dm-0 ino=8741914 scontext=system_u:system_r:logwatch_t:s0-s0:c0.c1023 tcontext=system_u:object_r:etc_t:s0 tclass=dir

Expected results:

Additional info:
Spoke with Dan briefly he thinks this is possibly a leaked file descriptor.

Comment 1 Ivana Varekova 2009-06-02 08:29:09 UTC
Hello,
please could you add me the id of the test you have done. I want to reproduce the problem myself to find out where the problem is. Thanks.

Comment 5 Jeff Burke 2009-06-10 17:16:27 UTC

*** This bug has been marked as a duplicate of bug 475562 ***

Comment 6 Ivana Varekova 2009-06-24 07:55:19 UTC
*** Bug 507622 has been marked as a duplicate of this bug. ***

Comment 7 Ivana Varekova 2009-07-02 07:01:03 UTC
*** Bug 508012 has been marked as a duplicate of this bug. ***