Bug 848727 - service netplugd restart produces AVCs
Summary: service netplugd restart produces AVCs
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: selinux-policy
Version: 5.9
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Michal Trunecka
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-08-16 09:55 UTC by Milos Malik
Modified: 2014-09-30 23:33 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-2.4.6-332.el5
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-01-08 03:33:08 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:0060 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2013-01-08 08:27:19 UTC

Description Milos Malik 2012-08-16 09:55:43 UTC
Description of problem:


Version-Release number of selected component (if applicable):
selinux-policy-minimum-2.4.6-331.el5
selinux-policy-devel-2.4.6-331.el5
selinux-policy-targeted-2.4.6-331.el5
selinux-policy-2.4.6-331.el5
selinux-policy-strict-2.4.6-331.el5
selinux-policy-mls-2.4.6-331.el5

How reproducible:
always

Steps to Reproduce:
1. get a RHEL-5.9 machine where targeted policy is active
2. service netplugd restart
3. search for AVCs

Actual results:
----
time->Thu Aug 16 11:36:58 2012
type=PATH msg=audit(1345109818.864:258): item=0 name="/usr/sbin/brctl" inode=601299 dev=03:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:brctl_exec_t:s0
type=CWD msg=audit(1345109818.864:258):  cwd="/etc/sysconfig/network-scripts"
type=SYSCALL msg=audit(1345109818.864:258): arch=40000003 syscall=195 success=no exit=-13 a0=8f01408 a1=bfa52dbc a2=5f0ff4 a3=1 items=1 ppid=6802 pid=6803 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=2 comm="ifup-eth" exe="/bin/bash" subj=root:system_r:hotplug_t:s0 key=(null)
type=AVC msg=audit(1345109818.864:258): avc:  denied  { getattr } for  pid=6803 comm="ifup-eth" path="/usr/sbin/brctl" dev=hda3 ino=601299 scontext=root:system_r:hotplug_t:s0 tcontext=system_u:object_r:brctl_exec_t:s0 tclass=file
----

Expected results:
 * no AVCs

Comment 1 Milos Malik 2012-08-16 09:58:34 UTC
The same action produces following AVCs in permissive mode:
----
time->Thu Aug 16 11:56:37 2012
type=PATH msg=audit(1345110997.928:291): item=0 name="/usr/sbin/brctl" inode=601299 dev=03:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:brctl_exec_t:s0
type=CWD msg=audit(1345110997.928:291):  cwd="/etc/sysconfig/network-scripts"
type=SYSCALL msg=audit(1345110997.928:291): arch=40000003 syscall=33 success=yes exit=0 a0=9734408 a1=1 a2=5f0ff4 a3=0 items=1 ppid=8699 pid=8700 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=2 comm="ifup-eth" exe="/bin/bash" subj=root:system_r:hotplug_t:s0 key=(null)
type=AVC msg=audit(1345110997.928:291): avc:  denied  { execute } for  pid=8700 comm="ifup-eth" name="brctl" dev=hda3 ino=601299 scontext=root:system_r:hotplug_t:s0 tcontext=system_u:object_r:brctl_exec_t:s0 tclass=file
----
time->Thu Aug 16 11:56:37 2012
type=PATH msg=audit(1345110997.917:290): item=0 name="/usr/sbin/brctl" inode=601299 dev=03:03 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:brctl_exec_t:s0
type=CWD msg=audit(1345110997.917:290):  cwd="/etc/sysconfig/network-scripts"
type=SYSCALL msg=audit(1345110997.917:290): arch=40000003 syscall=195 success=yes exit=0 a0=9734408 a1=bffbe86c a2=5f0ff4 a3=1 items=1 ppid=8699 pid=8700 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=2 comm="ifup-eth" exe="/bin/bash" subj=root:system_r:hotplug_t:s0 key=(null)
type=AVC msg=audit(1345110997.917:290): avc:  denied  { getattr } for  pid=8700 comm="ifup-eth" path="/usr/sbin/brctl" dev=hda3 ino=601299 scontext=root:system_r:hotplug_t:s0 tcontext=system_u:object_r:brctl_exec_t:s0 tclass=file
----

Comment 2 RHEL Product and Program Management 2012-08-16 10:17:17 UTC
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release.  Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products.  This request is not yet committed for inclusion in
a release.

Comment 3 Miroslav Grepl 2012-08-20 08:33:13 UTC
We have in RHEL6

optional_policy(`
    brctl_domtrans(hotplug_t)
')

which I am going to backport.

Comment 8 errata-xmlrpc 2013-01-08 03:33:08 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.

http://rhn.redhat.com/errata/RHBA-2013-0060.html


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