Description of problem:

Updating to NetworkManager-0.8.3.996-1.fc14.i686 and restarting the NetworkManager immediately generated this alert:


SELinux is preventing /usr/sbin/NetworkManager from using the 'signull' accesses on a process.

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

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

Additional Information:
Source Context                unconfined_u:system_r:NetworkManager_t:s0
Target Context                system_u:system_r:dhcpc_t:s0
Target Objects                Unknown [ process ]
Source                        NetworkManager
Source Path                   /usr/sbin/NetworkManager
Port                          <Unbekannt>
Host                          (removed)
Source RPM Packages           NetworkManager-0.8.3.996-1.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-31.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux marvin42 2.6.35.11-83.fc14.i686.PAE #1 SMP
                              Mon Feb 7 06:57:55 UTC 2011 i686 i686
Alert Count                   1
First Seen                    Mi 02 Mär 2011 10:34:40 CET
Last Seen                     Mi 02 Mär 2011 10:34:40 CET
Local ID                      f19bf290-a4bc-4797-8a8e-b3a5a6e48917

Raw Audit Messages
type=AVC msg=audit(1299058480.948:16): avc:  denied  { signull } for  pid=2496 comm="NetworkManager" scontext=unconfined_u:system_r:NetworkManager_t:s0 tcontext=system_u:system_r:dhcpc_t:s0 tclass=process


type=SYSCALL msg=audit(1299058480.948:16): arch=i386 syscall=kill success=no exit=EACCES a0=5bc a1=0 a2=8103ad0 a3=5bc items=0 ppid=1 pid=2496 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=1 comm=NetworkManager exe=/usr/sbin/NetworkManager subj=unconfined_u:system_r:NetworkManager_t:s0 key=(null)

Hash: NetworkManager,NetworkManager_t,dhcpc_t,process,signull

audit2allow

#============= NetworkManager_t ==============
allow NetworkManager_t dhcpc_t:process signull;

audit2allow -R

#============= NetworkManager_t ==============
allow NetworkManager_t dhcpc_t:process signull;