Bug 1289642

Summary: Samba / CTDB SELinux issues when CTDB doesnt manage Samba
Product: [Fedora] Fedora Reporter: Lukas Vrabec <lvrabec>
Component: selinux-policyAssignee: Lukas Vrabec <lvrabec>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 24CC: dominick.grift, dwalsh, lvrabec, mgrepl, mmalik, oalbrigt, plautrba, pvrabec, qe-baseos-security, ssekidde
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 1289640 Environment:
Last Closed: 2017-08-08 12:30:18 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: 1289640, 1435708    
Bug Blocks:    

Description Lukas Vrabec 2015-12-08 16:05:42 UTC 
+++ This bug was initially created as a clone of Bug #1289640 +++

Description of problem:
Samba and CTDB has some SELinux issues when CTDB isnt managing Samba (I run it with Pacemaker).

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1. Setup CTDB and Samba with Pacemaker (I'll add the instructions for how to set it up)
2. pcs resource enable ctdb-clone
3. pcs resource samba-clone

Actual results:
SELinux errors regarding /etc/ctdb/event.d-scripts, /etc/ctdb/notify.sh and smbd fails to attach to ctdb secrets.tdb and to open /var/lib/samba/private/secrets.tdb

Expected results:
No issues

Additional info:
ausearch -m AVC in permissive mode:
    time->Tue Dec  8 14:59:33 2015
    type=SYSCALL msg=audit(1449583173.698:6319): arch=c000003e syscall=4 success=yes exit=0 a0=8844a0 a1=7ffe6b54ee00 a2=7ffe6b54ee00 a3=7ffe6b54eb70 items=0 ppid=11324 pid=11325 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="00.ctdb" exe="/usr/bin/bash" subj=system_u:system_r:ctdbd_t:s0 key=(null)
    type=AVC msg=audit(1449583173.698:6319): avc:  denied  { dac_override } for  pid=11325 comm="00.ctdb" capability=1  scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:system_r:ctdbd_t:s0 tclass=capability
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.599:6322): arch=c000003e syscall=90 success=yes exit=0 a0=7f5db9cfd800 a1=180 a2=0 a3=9 items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.599:6322): avc:  denied  { setattr } for  pid=11858 comm="smbd" name="secrets.tdb.0" dev="dm-0" ino=264377 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:ctdbd_var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.601:6323): arch=c000003e syscall=2 success=yes exit=5 a0=7f5db9cfd800 a1=2 a2=0 a3=7ffccdf39e00 items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.601:6323): avc:  denied  { open } for  pid=11858 comm="smbd" path="/var/ctdb/persistent/secrets.tdb.0" dev="dm-0" ino=264377 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:ctdbd_var_t:s0 tclass=file
    type=AVC msg=audit(1449583201.601:6323): avc:  denied  { read write } for  pid=11858 comm="smbd" name="secrets.tdb.0" dev="dm-0" ino=264377 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:ctdbd_var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.601:6324): arch=c000003e syscall=72 success=yes exit=0 a0=5 a1=7 a2=7ffccdf39ff0 a3=6e items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.601:6324): avc:  denied  { lock } for  pid=11858 comm="smbd" path="/var/ctdb/persistent/secrets.tdb.0" dev="dm-0" ino=264377 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:ctdbd_var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.601:6325): arch=c000003e syscall=5 success=yes exit=0 a0=5 a1=7ffccdf3a0e0 a2=7ffccdf3a0e0 a3=7ffccdf39e00 items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.601:6325): avc:  denied  { getattr } for  pid=11858 comm="smbd" path="/var/ctdb/persistent/secrets.tdb.0" dev="dm-0" ino=264377 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:ctdbd_var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.601:6326): arch=c000003e syscall=2 success=yes exit=21 a0=7fd289fdc880 a1=42 a2=180 a3=2 items=0 ppid=1 pid=9910 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ctdbd" exe="/usr/sbin/ctdbd" subj=system_u:system_r:ctdbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.601:6326): avc:  denied  { open } for  pid=9910 comm="ctdbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    type=AVC msg=audit(1449583201.601:6326): avc:  denied  { read write } for  pid=9910 comm="ctdbd" name="g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.602:6327): arch=c000003e syscall=72 success=yes exit=0 a0=15 a1=7 a2=7ffd11222090 a3=fffffffc items=0 ppid=1 pid=9910 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ctdbd" exe="/usr/sbin/ctdbd" subj=system_u:system_r:ctdbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.602:6327): avc:  denied  { lock } for  pid=9910 comm="ctdbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.602:6328): arch=c000003e syscall=5 success=yes exit=0 a0=15 a1=7ffd11222180 a2=7ffd11222180 a3=0 items=0 ppid=1 pid=9910 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ctdbd" exe="/usr/sbin/ctdbd" subj=system_u:system_r:ctdbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.602:6328): avc:  denied  { getattr } for  pid=9910 comm="ctdbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.605:6329): arch=c000003e syscall=90 success=yes exit=0 a0=7f5db9cff130 a1=180 a2=0 a3=8 items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.605:6329): avc:  denied  { setattr } for  pid=11858 comm="smbd" name="g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.605:6330): arch=c000003e syscall=2 success=yes exit=9 a0=7f5db9cff130 a1=2 a2=0 a3=2 items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.605:6330): avc:  denied  { open } for  pid=11858 comm="smbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    type=AVC msg=audit(1449583201.605:6330): avc:  denied  { read write } for  pid=11858 comm="smbd" name="g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.605:6331): arch=c000003e syscall=72 success=yes exit=0 a0=9 a1=7 a2=7ffccdf39ec0 a3=6e items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.605:6331): avc:  denied  { lock } for  pid=11858 comm="smbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:01 2015
    type=SYSCALL msg=audit(1449583201.605:6332): arch=c000003e syscall=5 success=yes exit=0 a0=9 a1=7ffccdf39fb0 a2=7ffccdf39fb0 a3=ffffffff items=0 ppid=1 pid=11858 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0 key=(null)
    type=AVC msg=audit(1449583201.605:6332): avc:  denied  { getattr } for  pid=11858 comm="smbd" path="/var/ctdb/g_lock.tdb.0" dev="dm-0" ino=77706912 scontext=system_u:system_r:smbd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=file
    ----
    time->Tue Dec  8 15:00:04 2015
    type=SYSCALL msg=audit(1449583204.394:6333): arch=c000003e syscall=4 success=yes exit=0 a0=16504a0 a1=7ffd9431e5b0 a2=7ffd9431e5b0 a3=7ffd9431e320 items=0 ppid=11930 pid=11933 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="00.ctdb" exe="/usr/bin/bash" subj=system_u:system_r:ctdbd_t:s0 key=(null)
    type=AVC msg=audit(1449583204.394:6333): avc:  denied  { dac_override } for  pid=11933 comm="00.ctdb" capability=1  scontext=system_u:system_r:ctdbd_t:s0 tcontext=system_u:system_r:ctdbd_t:s0 tclass=capability
Comment 1 Jan Kurik 2016-02-24 15:51:36 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 24 development cycle.
Changing version to '24'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora24#Rawhide_Rebase
Comment 2 Fedora End Of Life 2017-07-25 19:36:52 UTC 
This message is a reminder that Fedora 24 is nearing its end of life.
Approximately 2 (two) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 24. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '24'.

Package Maintainer: If you wish for this bug to remain open because you
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to a later Fedora version.

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version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
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Comment 3 Fedora End Of Life 2017-08-08 12:30:18 UTC 
Fedora 24 changed to end-of-life (EOL) status on 2017-08-08. Fedora 24 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
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Thank you for reporting this bug and we are sorry it could not be fixed.