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Bug 855286

Summary: SELinux is preventing /usr/sbin/sanlock from getattr access on Posix Compliant FS storage type
Product: Red Hat Enterprise Linux 6 Reporter: Anush Shetty <ashetty>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED ERRATA QA Contact: Michal Trunecka <mtruneck>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.3CC: cpelland, dwalsh, dyasny, ebenes, fsimonce, grajaiya, iheim, lpeer, mmalik, mtruneck, Rhev-m-bugs, syeghiay, vbellur, yeylon, ykaul
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: storage
Fixed In Version: selinux-policy-3.7.19-171.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 877986 (view as bug list) Environment:
Last Closed: 2013-02-21 08:28:43 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: 877986    

Description Anush Shetty 2012-09-07 08:32:18 UTC 
Description of problem: While installing the ISO on VM from RHEVM, we see some permission denied errors. Running sealert on audit log shows selinux preventing access to the file on the storage. Selinux is set to permissive mode on RHS cluster and set to enforcing mode on the hypervisor which is a RHEL 6.3 machine. 


Version-Release number of selected component (if applicable): 
RHEL 6.3 on hypervisor
RHS2.0 on glusterfs servers with glusterfs-3.3.0rhsvirt1-2.el6_2.x86_64
rhevm-webadmin-portal-3.1.0-15.el6ev.noarch

How reproducible: Consistently


Steps to Reproduce:
1. Install ISO on VM from RHEVM
2.
3.
  

Actual results:

Installing from ISO on VM fails.


Expected results:

Should set the right selinux context and succeed.


Additional info:

Setting selinux to permissive mode on hypervisor fixes the issue.

sealert output:
SELinux is preventing /usr/sbin/sanlock from search access on the directory /.

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

If you believe that sanlock should be allowed search access on the  directory 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 sanlock /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp


--------------------------------------------------------------------------------

SELinux is preventing /usr/sbin/sanlock from getattr access on the file /rhev/data-center/mnt/rhs-gp-srv11.lab.eng.blr.redhat.com:_distribute-replicate-2x2/62bebb34-33c1-4329-9b69-e88dda3dc482/dom_md/ids.

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

If you believe that sanlock should be allowed getattr access on the ids file 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 sanlock /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp
Comment 1 Yaniv Kaul 2012-09-07 08:40:50 UTC 
Please state which version of selinux policy you are using as well as sanlock RPM.

Regardless, it's not a REHVM backend bug.
Comment 2 Anush Shetty 2012-09-07 10:58:41 UTC 
# rpm -qa | grep sanlock
sanlock-2.3-3.el6_3.x86_64
sanlock-lib-2.3-3.el6_3.x86_64
sanlock-python-2.3-3.el6_3.x86_64

# rpm -qa | grep selinux
libselinux-2.0.94-5.3.el6.x86_64
libselinux-utils-2.0.94-5.3.el6.x86_64
selinux-policy-3.7.19-155.el6_3.noarch
selinux-policy-targeted-3.7.19-155.el6_3.noarch
libselinux-python-2.0.94-5.3.el6.x86_64
Comment 6 Daniel Walsh 2012-09-18 16:10:41 UTC 
If you cut off the alert message we do not see the AVC's and can not diagnose the problem.

Please attach the avc messages.
Comment 7 Gowrishankar Rajaiyan 2012-10-15 12:47:01 UTC 
type=AVC msg=audit(1350303946.329:19488): avc:  denied  { search } for  pid=3147 comm="sanlock" name="mnt" dev=sda3 ino=22544387 scontext=system_u:system_r:sanlock_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=dir
type=AVC msg=audit(1350303946.329:19488): avc:  denied  { search } for  pid=3147 comm="sanlock" name="/" dev=fuse ino=1 scontext=system_u:system_r:sanlock_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fusefs_t:s0 tclass=dir
type=AVC msg=audit(1350303946.329:19488): avc:  denied  { read write } for  pid=3147 comm="sanlock" name="leases" dev=fuse ino=10431266204161846275 scontext=system_u:system_r:sanlock_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fusefs_t:s0 tclass=file
type=AVC msg=audit(1350303946.329:19488): avc:  denied  { open } for  pid=3147 comm="sanlock" name="leases" dev=fuse ino=10431266204161846275 scontext=system_u:system_r:sanlock_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fusefs_t:s0 tclass=file
type=SYSCALL msg=audit(1350303946.329:19488): arch=c000003e syscall=2 success=yes exit=10 a0=7f3490020578 a1=105002 a2=0 a3=0 items=0 ppid=1 pid=3147 auid=4294967295 uid=179 gid=179 euid=179 suid=179 fsuid=179 egid=179 sgid=179 fsgid=179 tty=(none) ses=4294967295 comm="sanlock" exe="/usr/sbin/sanlock" subj=system_u:system_r:sanlock_t:s0-s0:c0.c1023 key=(null)
type=AVC msg=audit(1350303946.331:19489): avc:  denied  { getattr } for  pid=3147 comm="sanlock" path="/rhev/data-center/mnt/rhs-client36.lab.eng.blr.redhat.com:_dist-replica/7746e77b-7475-4fb8-ab7f-fd85773c5762/dom_md/leases" dev=fuse ino=10431266204161846275 scontext=system_u:system_r:sanlock_t:s0-s0:c0.c1023 tcontext=system_u:object_r:fusefs_t:s0 tclass=file
type=SYSCALL msg=audit(1350303946.331:19489): arch=c000003e syscall=5 success=yes exit=0 a0=a a1=7f34a0900590 a2=7f34a0900590 a3=0 items=0 ppid=1 pid=3147 auid=4294967295 uid=179 gid=179 euid=179 suid=179 fsuid=179 egid=179 sgid=179 fsgid=179 tty=(none) ses=4294967295 comm="sanlock" exe="/usr/sbin/sanlock" subj=system_u:system_r:sanlock_t:s0-s0:c0.c1023 key=(null)
Comment 9 Daniel Walsh 2012-10-15 14:15:50 UTC 
You seem to have a file system mounted at /mnt without labels "file_t".

Have you tried to turn on sanlock_use_fusefs boolean?

setsebool -P sanlock_use_fusefs 1

I know this boolean is in selinux-policy-3.7.19-171.el6

for RHEL6.4

Currently available on http://people.redhat.com/dwalsh/SELinux/RHEL6/noarch/
Comment 13 errata-xmlrpc 2013-02-21 08:28:43 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-2013-0314.html