Bug 718060

Summary: SELinux is preventing /usr/bin/runcon from using the 'transition' accesses on a process.
Product: [Fedora] Fedora Reporter: Gavin Romig-Koch <gavin>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 15CC: dominick.grift, dwalsh, gavin, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: setroubleshoot_trace_hash:a23278c684459abcc8a4cbb1bb846497792b3c92243bdd71c619e8088ebe8017
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-06-30 20:35:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Gavin Romig-Koch 2011-06-30 20:34:05 UTC
SELinux is preventing /usr/bin/runcon from using the 'transition' accesses on a process.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that runcon should be allowed transition access on processes labeled httpd_t by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep runcon /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                system_u:object_r:httpd_t:s0-s0:c0.c1023
Target Objects                /bin/bash [ process ]
Source                        runcon
Source Path                   /usr/bin/runcon
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           coreutils-8.10-2.fc15
Target RPM Packages           bash-4.2.10-4.fc15
Policy RPM                    selinux-policy-3.9.16-30.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 2.6.38.8-32.fc15.x86_64 #1 SMP
                              Mon Jun 13 19:49:05 UTC 2011 x86_64 x86_64
Alert Count                   1
First Seen                    Thu 30 Jun 2011 01:31:50 PM EDT
Last Seen                     Thu 30 Jun 2011 01:31:50 PM EDT
Local ID                      ddeb56cd-652c-4725-a15a-8c4881110bff

Raw Audit Messages
type=AVC msg=audit(1309455110.544:98): avc:  denied  { transition } for  pid=25151 comm="runcon" path="/bin/bash" dev=dm-1 ino=44363 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:httpd_t:s0-s0:c0.c1023 tclass=process


type=SYSCALL msg=audit(1309455110.544:98): arch=x86_64 syscall=execve success=no exit=EACCES a0=7fff35ad561c a1=7fff35ad40c0 a2=7fff35ad40d0 a3=0 items=0 ppid=24981 pid=25151 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=pts0 ses=1 comm=runcon exe=/usr/bin/runcon subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)

Hash: runcon,unconfined_t,httpd_t,process,transition

audit2allow

#============= unconfined_t ==============
allow unconfined_t httpd_t:process transition;

audit2allow -R

#============= unconfined_t ==============
allow unconfined_t httpd_t:process transition;

Comment 1 Gavin Romig-Koch 2011-06-30 20:35:40 UTC
just testing f15.

Comment 2 Miroslav Grepl 2011-07-01 06:48:57 UTC
you can start apache with runcon using

# runcon -u system_u -r system_r -t initrc_t -- runcon -t htppd_t httpd


it will do these transition

unconfined_t -> initrc_t -> httpd_t