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Bug 1373220 - avc denial: comm="iptables.init" name="plymouth"
Summary: avc denial: comm="iptables.init" name="plymouth"
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.3
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks: 1420851
TreeView+ depends on / blocked
 
Reported: 2016-09-05 14:04 UTC by Petr Sklenar
Modified: 2021-06-10 11:30 UTC (History)
9 users (show)

Fixed In Version: selinux-policy-3.13.1-175.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-10 12:22:45 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 2912781 0 None None None 2017-02-07 15:12:54 UTC
Red Hat Product Errata RHBA-2018:0763 0 None None None 2018-04-10 12:23:31 UTC

Description Petr Sklenar 2016-09-05 14:04:37 UTC 
Description of problem:
there is avc denial during starting iptables , but its there rarely.

Version-Release number of selected component (if applicable):
iptables-1.4.21-17.el7.s390x
selinux-policy-3.13.1-96.el7.noarch

How reproducible:
rarely

Steps to Reproduce:
1. start iptables + ip6tables +  firewalld


Actual results:
time->Sun Sep  4 01:34:54 2016
type=SYSCALL msg=audit(1472949294.909:1707): arch=80000016 syscall=300 success=no exit=-13 a0=ffffffffffffff9c a1=90ea45b0 a2=1 a3=200 items=0 ppid=1 pid=45704 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="iptables.init" exe="/usr/bin/bash" subj=system_u:system_r:iptables_t:s0 key=(null)
type=AVC msg=audit(1472949294.909:1707): avc:  denied  { execute } for  pid=45704 comm="iptables.init" name="plymouth" dev="dm-0" ino=613888 scontext=system_u:system_r:iptables_t:s0 tcontext=system_u:object_r:plymouth_exec_t:s0 tclass=file
Fail: AVC messages found.

Expected results:
no denial

Additional info:
Comment 7 feehans 2017-01-17 18:30:53 UTC 
We're getting similar errors. Note that this is on a CentOS 7.3.1611 system, so I probably shouldn't report here. But I have also opened a bug with CentOS:

https://bugs.centos.org/view.php?id=12648

Here are the errors we get:

type=AVC msg=audit(1484222790.149:1385018): avc:  denied  { setattr } for  pid=10803 comm="chmod" name="iptables.save" dev="dm-0" ino=35288115 scontext=system_u:system_r:iptables_t:s0 tcontext=unconfined_u:object_r:etc_runtime_t:s0 tclass=file

type=AVC msg=audit(1484222790.150:1385019): avc:  denied  { execute } for  pid=10790 comm="iptables.init" name="plymouth" dev="dm-0" ino=67870175 scontext=system_u:system_r:iptables_t:s0 tcontext=system_u:object_r:plymouth_exec_t:s0 tclass=file

type=AVC msg=audit(1484222790.221:1385042): avc:  denied  { unlink } for  pid=10860 comm="rm" name="ip6tables" dev="tmpfs" ino=17162 scontext=system_u:system_r:iptables_t:s0 tcontext=system_u:object_r:var_lock_t:s0 tclass=file

type=AVC msg=audit(1484222790.240:1385045): avc:  denied  { read } for  pid=10862 comm="ip6tables.init" name="modprobe.d" dev="dm-0" ino=34095125 scontext=system_u:system_r:iptables_t:s0 tcontext=system_u:object_r:modules_conf_t:s0 tclass=dir

For us this happens only on reboot and it is consistently reproducible. It started on the first reboot after updating to 7.3.1611.
Comment 8 Zdenek Pytela 2017-02-07 14:09:52 UTC 
the legacy commands iptables.init and ip6tables.init are part of the iptables-services-1.4.21-17.el7.x86_64 package
they are sourcing /etc/init.d/functions which executes plymouth commands

similar to bz1419957
Comment 16 errata-xmlrpc 2018-04-10 12:22:45 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-2018:0763
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