Red Hat Bugzilla – Bug 811366
stap-serverd runs as initrc_t
Last modified: 2014-10-14 03:56:32 EDT
Description of problem:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
# service stap-server status
No managed stap-server is running
# run_init service stap-server start
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
* stap-serverd runs as initrc_t
* stap-server runs in its own SELinux domain
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?
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
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.
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.
See also bug #798036, another selinux enforcement issue.
Patch sent to Miroslav.
Author: Lukas Vrabec <email@example.com>
Date: Wed Apr 23 15:03:59 2014 +0200
Added stapserver policy
Is it necessary to add this capability? Or everything run fine and you just see this AVC?
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.