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Bug 1755401 - avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop.DBus.Peer
Summary: avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop....
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.1
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: 8.2
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-09-25 12:30 UTC by Marek Havrila
Modified: 2020-04-28 16:41 UTC (History)
5 users (show)

Fixed In Version: selinux-policy-3.14.3-22.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:41:25 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1773 0 None None None 2020-04-28 16:41:38 UTC

Description Marek Havrila 2019-09-25 12:30:51 UTC 
Description of problem:
Following acv denial appeared in our beaker tasks: 

type=USER_AVC msg=audit(1568739209.852:105): pid=948 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for msgtype=method_call interface=org.freedesktop.DBus.Peer member=Ping dest=org.freedesktop.Avahi spid=4682 tpid=946 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:system_r:avahi_t:s0 tclass=dbus permissive=0  exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'


Version-Release number of selected component (if applicable):
RHEL-8.1.0-20190917.0-x86_64
selinux-policy-3.14.3-20.el8.noarch

How reproducible:
always

Steps to Reproduce:
This denial was observed in our beaker tasks. I was able to reproduce in VM:
1. Install RHEL-8.1.0-20190917.0-x86_64 (select Workstation in Software selection spoke)
2. Finish installation and reboot
3. check /var/log/audit/audit.log for avc denials

Actual results:
https://beaker.engineering.redhat.com/recipes/7363301#task99374726

Expected results:
no avc warning

Additional info:

SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Memory protection checking:     actual (secure)
Max kernel policy version:      31
selinux-policy-3.14.3-20.el8.noarch
----
time->Tue Sep 17 19:53:29 2019
type=USER_AVC msg=audit(1568739209.852:105): pid=948 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for msgtype=method_call interface=org.freedesktop.DBus.Peer member=Ping dest=org.freedesktop.Avahi spid=4682 tpid=946 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:system_r:avahi_t:s0 tclass=dbus permissive=0  exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?'
Comment 11 errata-xmlrpc 2020-04-28 16:41:25 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1773
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