Bug 811366

Summary: stap-serverd runs as initrc_t
Product: Red Hat Enterprise Linux 6 Reporter: Milos Malik <mmalik>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Milos Malik <mmalik>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 6.3CC: dwalsh, lvrabec, mjw, mmalik, scox
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: selinux-policy-3.7.19-247.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-10-14 07:56:32 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 832330, 1116380    

Description Milos Malik 2012-04-10 20:00:11 UTC
Description of problem:


Version-Release number of selected component (if applicable):
selinux-policy-targeted-3.7.19-145.el6.noarch
selinux-policy-doc-3.7.19-145.el6.noarch
selinux-policy-mls-3.7.19-145.el6.noarch
selinux-policy-3.7.19-145.el6.noarch
selinux-policy-minimum-3.7.19-145.el6.noarch
systemtap-server-1.7-3.el6.x86_64

How reproducible:
always

Steps to Reproduce:
# service stap-server status
No managed stap-server is running
# run_init service stap-server start
Authenticating root.
Password: 
Starting stap-server -a "x86_64" -r "2.6.32-220.el6.x86_64" -u "stap-server" --log "/var/log/stap-server/log"
                                                           [  OK  ]
# service stap-server status
stap-server -a "x86_64" -r "2.6.32-220.el6.x86_64" -u "stap-server" -n "15947" --log "/var/log/stap-server/log" running as PID 15947
# ps -efZ | grep initrc_t
system_u:system_r:initrc_t:s0   155      15947     1  0 21:58 ?        00:00:00 /usr/libexec/systemtap/stap-serverd -r 2.6.32-220.el6.x86_64 -a x86_64 --log=/var/log/stap-server/log
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 root 16006 12100  0 21:59 pts/1 00:00:00 grep initrc_t
# 

Actual results:
* stap-serverd runs as initrc_t

Expected results:
* stap-server runs in its own SELinux domain

Comment 1 Milos Malik 2012-04-10 20:51:35 UTC
The daemon is not confined by SELinux. Please help SELinux folks to create a suitable policy module. You know that we should minimize the number of programs running as initrc_t, don't you?

Comment 2 Frank Ch. Eigler 2012-04-11 23:42:32 UTC
We're happy to help, though are not immediately able to write a selinux
module ourselves.  Perhaps reassign this bug to someone willing/able to do so?

stap-server does a lot, so may be complicated to tie down.  For example, 
it does all of the following unprivileged operations:

- it reads files in /etc/systemtap
- it talks to the local avahi daemon
- it modifies files in its home directory /var/lib/stap-server
  (but see bug #798036)
- it creates potentially large temporary files under $TMPDIR-/var/tmp
- it reads files under /usr/lib/debug and /lib/modules and elsewhere
- it runs make / gcc / the whole stratum of kernel-build tools/scripts
- it might even be configured to make outgoing network connections to
  other nearby stap-servers

Comment 3 RHEL Program Management 2012-07-10 08:38:30 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 4 RHEL Program Management 2012-07-11 01:51:30 UTC
This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development.  This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4.

Comment 5 Frank Ch. Eigler 2012-08-10 22:45:14 UTC
See also bug #798036, another selinux enforcement issue.

Comment 6 RHEL Program Management 2012-12-14 08:36:02 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 9 Lukas Vrabec 2014-04-29 15:32:43 UTC
Patch sent to Miroslav.

Comment 11 Lukas Vrabec 2014-05-02 12:18:58 UTC
commit 444215373f4d5cd6c832816aaa588e00952cdc5c
Author: Lukas Vrabec <lvrabec>
Date:   Wed Apr 23 15:03:59 2014 +0200

    Added stapserver policy

Comment 14 Lukas Vrabec 2014-06-23 08:59:16 UTC
Milos,

Is it necessary to add this capability? Or everything run fine and you just see this AVC?

Comment 15 Lukas Vrabec 2014-07-08 12:57:09 UTC
patch sent.

Comment 18 Lukas Vrabec 2014-07-28 23:39:17 UTC
patch sent.

Comment 20 errata-xmlrpc 2014-10-14 07:56:32 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-2014-1568.html