Bug 466133 - SELinux is preventing nm-system-setti (NetworkManager_t) "read" to /etc/dbus-1/system.d (dbusd_etc_t).
SELinux is preventing nm-system-setti (NetworkManager_t) "read" to /etc/dbus-...
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: selinux-policy (Show other bugs)
All Linux
medium Severity medium
: rc
: ---
Assigned To: Daniel Walsh
Depends On:
  Show dependency treegraph
Reported: 2008-10-08 12:14 EDT by Suzanne Hillman
Modified: 2009-03-26 21:20 EDT (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-03-26 21:20:40 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Suzanne Hillman 2008-10-08 12:14:08 EDT
Description of problem:
SELinux is preventing nm-system-setti (NetworkManager_t) "read" to /etc/dbus-1/system.d (dbusd_etc_t). 

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

How reproducible:
Not really clear; there was both wireless and wired network use...

Steps to Reproduce:
1. Not sure what I did to cause this, sorry


I believe selinux messages are always blockers, thus blocker flag.
Comment 1 Gary Case 2008-10-09 18:47:02 EDT
I see this on i386 and x86_64 arches of the 20081006.0 build of RHEL5.2 on multiple machines. The error appears after login and nothing needs to be done to cause it (simply install the OS and it will appear).
Comment 2 Dan Williams 2008-10-10 10:49:41 EDT
Dan: TBH I have no idea why nm-system-settings would need to read this directory since dbus itself is the process that reads files out of that directory.  Is there a good way to get a stacktrace from the process when an SELinux error is triggered?  I'm really curious to figure out what is trying to do this operation.
Comment 3 Michal Babej 2008-10-14 10:18:23 EDT
I get the same avc denial but on wpa_supplicant. It's easy to reproduce: stop NM, restart dbus, start NM.

type=AVC msg=audit(1223993506.115:6438): avc:  denied  { read } for  pid=6926 comm="wpa_supplicant" path="/etc/dbus-1/system.d" dev=dm-0 ino=65939 scontext=root:system_r:NetworkManager_t:s0 tcontext=system_u:object_r:dbusd_etc_t:s0 tclass=dir

type=AVC msg=audit(1223993506.115:6438): avc:  denied  { read write } for  pid=6926 comm="wpa_supplicant" path="socket:[37853]" dev=sockfs ino=37853 scontext=root:system_r:NetworkManager_t:s0 tcontext=root:system_r:system_dbusd_t:s0 tclass=netlink_selinux_socket
Comment 4 Daniel Walsh 2008-10-14 11:24:14 EDT
These are leaked file descriptors from dbus.  DBUS should close these file descriptors on exec.

fcntl(fd, F_SETFD, FD_CLOEXEC)
Comment 10 Dan Williams 2008-12-10 14:18:14 EST
Moving to 5.4 per comment #8.
Comment 12 Need Real Name 2009-02-10 07:03:40 EST
Just pops up out of the blue. Tired correcting with the suggested restorecon -v '/var/log/gdm/:0-greeter.log' seems to not come up again, until my next session. I do not leave my computer running all the time, so when I boot to use, it pops up after the computer has been running roughly 6 to 8 hours.
I don't know if this helps you out.
Comment 13 Need Real Name 2009-02-10 07:38:21 EST
Just pops up out of the blue. Tired correcting with the suggested restorecon -v
'/var/log/gdm/:0-greeter.log' seems to not come up again, until my next
session. I do not leave my computer running all the time, so when I boot to
use, it pops up after roughly 4 to 8 hours the computer has been running. 

I don't know if this helps you out...

Source Context:  system_u:system_r:polkit_auth_t:s0-s0:c0.c1023
Target Context:  system_u:object_r:xserver_log_t:s0
Target Objects:  /var/log/gdm/:0-greeter.log [ file ]
Source:  polkit-read-aut
Source Path:  /usr/libexec/polkit-read-auth-helper
Port:  <Unknown>
Host:  scoobshost.scoobsdomain
Source RPM 
Target RPM Packages:  
Policy RPM:  selinux-policy-3.5.13-41.fc10
Selinux Enabled:True
Policy Type:  targeted
MLS Enabled:  True
Enforcing Mode:  Enforcing
Plugin Name:  catchall_file
Host Name:  scoobshost.scoobsdomain
Platform:  Linux scoobshost.scoobsdomain #1 SMP Wed Jan 21 01:33:24 EST 2009 x86_64 x86_64
Alert Count:  178
First Seen:  Sat 31 Jan 2009 12:43:40 PM EST
Last Seen:  Mon 09 Feb 2009 05:45:55 PM EST
Local ID:  063f32aa-5f76-40d6-9dee-8f82fdda12bc
Line Numbers:  

Raw Audit Messages :

node=scoobshost.scoobsdomain type=AVC msg=audit(1234219555.327:11): avc: denied { write } for pid=2678 
comm="polkit-read-aut" path="/var/log/gdm/:0-greeter.log" dev=dm-0 ino=4210804 scontext=system_u:system_r:polkit_auth_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xserver_log_t:s0 tclass=file

node=scoobshost.scoobsdomain type=SYSCALL msg=audit(1234219555.327:11): arch=c000003e syscall=59 
success=yes exit=0 a0=3b06814c08 a1=7fff5a5bc380 a2=7fff5a5bd218 a3=8 items=0 ppid=2658 pid=2678 
auid=4294967295 uid=42 gid=42 euid=42 suid=42 fsuid=42 egid=87 sgid=87 fsgid=87 tty=(none) ses=4294967295 
comm="polkit-read-aut" exe="/usr/libexec/polkit-read-auth helper"subj=system_u:system_r:polkit_auth_t:s0-s0:c0.c1023 key=(null)
Comment 14 Daniel Walsh 2009-02-10 08:58:31 EST
This is an F10 bug you are adding to a RHEL5 bugzilla.

The gdm problem is fixed in the policy in fedora-testing.
Comment 15 RHEL Product and Program Management 2009-03-26 13:23:00 EDT
This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
this request to be reviewed for the next minor release, ask your
support representative to set the next rhel-x.y flag to "?".

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