Description of problem:
SELinux is preventing /usr/sbin/winbindd from using the 'signull' accesses on a process.

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

If you believe that winbindd should be allowed signull access on processes labeled kernel_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 winbindd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:winbind_t:s0
Target Context                system_u:system_r:kernel_t:s0
Target Objects                 [ process ]
Source                        winbindd
Source Path                   /usr/sbin/winbindd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           samba-winbind-4.1.5-1.fc20.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-122.fc20.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.13.4-200.fc20.x86_64 #1 SMP Thu
                              Feb 20 23:00:47 UTC 2014 x86_64 x86_64
Alert Count                   7
First Seen                    2013-08-04 21:01:33 EDT
Last Seen                     2014-03-18 10:26:35 EDT
Local ID                      389cda37-721f-449f-8ba0-fd4e392ae187

Raw Audit Messages
type=AVC msg=audit(1395152795.92:17227): avc:  denied  { signull } for  pid=1197 comm="winbindd" scontext=system_u:system_r:winbind_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process


type=SYSCALL msg=audit(1395152795.92:17227): arch=x86_64 syscall=kill success=no exit=EACCES a0=508d a1=0 a2=0 a3=49 items=0 ppid=1 pid=1197 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=winbindd exe=/usr/sbin/winbindd subj=system_u:system_r:winbind_t:s0 key=(null)

Hash: winbindd,winbind_t,kernel_t,process,signull

Additional info:
reporter:       libreport-2.2.0
hashmarkername: setroubleshoot
kernel:         3.13.6-200.fc20.x86_64
type:           libreport

Potential duplicate: bug 1036194