Description of problem:
SELinux is preventing /usr/libexec/postfix/local from 'lock' accesses on the file /var/spool/postfix/pid/unix.local.

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

If vous pensez que local devrait être autorisé à accéder lock sur unix.local file par défaut.
Then vous devriez rapporter ceci en tant qu'anomalie.
Vous pouvez générer un module de stratégie local pour autoriser cet accès.
Do
autoriser cet accès pour le moment en exécutant :
# grep local /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:postfix_local_t:s0
Target Context                system_u:object_r:postfix_var_run_t:s0
Target Objects                /var/spool/postfix/pid/unix.local [ file ]
Source                        local
Source Path                   /usr/libexec/postfix/local
Port                          <Inconnu>
Host                          (removed)
Source RPM Packages           postfix-2.10.0-1.fc20.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-41.fc20.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.10.0-0.rc0.git21.1.fc20.x86_64
                              #1 SMP Tue May 7 19:47:51 UTC 2013 x86_64 x86_64
Alert Count                   4
First Seen                    2013-05-08 11:27:37 CEST
Last Seen                     2013-05-08 11:27:58 CEST
Local ID                      dac84ede-0e0f-4cb9-9609-52c37e79cf83

Raw Audit Messages
type=AVC msg=audit(1368005278.270:123): avc:  denied  { lock } for  pid=2462 comm="local" path="/var/spool/postfix/pid/unix.local" dev="dm-0" ino=3024628 scontext=system_u:system_r:postfix_local_t:s0 tcontext=system_u:object_r:postfix_var_run_t:s0 tclass=file


type=SYSCALL msg=audit(1368005278.270:123): arch=x86_64 syscall=flock success=yes exit=0 a0=8 a1=8 a2=0 a3=17700 items=0 ppid=2381 pid=2462 auid=4294967295 uid=0 gid=0 euid=89 suid=0 fsuid=89 egid=89 sgid=0 fsgid=89 ses=4294967295 tty=(none) comm=local exe=/usr/libexec/postfix/local subj=system_u:system_r:postfix_local_t:s0 key=(null)

Hash: local,postfix_local_t,postfix_var_run_t,file,lock

audit2allow

#============= postfix_local_t ==============
allow postfix_local_t postfix_var_run_t:file lock;

audit2allow -R
require {
	type postfix_local_t;
	type postfix_var_run_t;
	class file lock;
}

#============= postfix_local_t ==============
allow postfix_local_t postfix_var_run_t:file lock;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.10.0-0.rc0.git21.1.fc20.x86_64
type:           libreport