SELinux is preventing /usr/bin/qemu-kvm from 'write' accesses on the dossier /home/misc/.libvirt/qemu/lib.

*****  Plugin restorecon (99.5 confidence) suggests  *************************

If you want to fix the label. 
/home/misc/.libvirt/qemu/lib default label should be virt_home_t.
Then you can run restorecon.
Do
# /sbin/restorecon -v /home/misc/.libvirt/qemu/lib

*****  Plugin catchall (1.49 confidence) suggests  ***************************

If you believe that qemu-kvm should be allowed write access on the lib 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 qemu-kvm /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:svirt_t:s0:c370,c638
Target Context                unconfined_u:object_r:user_home_t:s0
Target Objects                /home/misc/.libvirt/qemu/lib [ dir ]
Source                        qemu-kvm
Source Path                   /usr/bin/qemu-kvm
Port                          <Inconnu>
Host                          (removed)
Source RPM Packages           qemu-system-x86-0.14.0-7.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.16-39.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.40.4-5.fc15.x86_64 #1 SMP Tue Aug 30 14:38:32
                              UTC 2011 x86_64 x86_64
Alert Count                   1
First Seen                    mar. 27 sept. 2011 10:04:46 CEST
Last Seen                     mar. 27 sept. 2011 10:04:46 CEST
Local ID                      d901bdb1-4d27-4507-8021-97f20a53c4e2

Raw Audit Messages
type=AVC msg=audit(1317110686.336:134): avc:  denied  { write } for  pid=11767 comm="qemu-kvm" name="lib" dev=dm-3 ino=3801899 scontext=system_u:system_r:svirt_t:s0:c370,c638 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=dir


type=SYSCALL msg=audit(1317110686.336:134): arch=x86_64 syscall=bind success=no exit=EACCES a0=3 a1=7fff3524b300 a2=6e a3=6273632f62696c2f items=0 ppid=1 pid=11767 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm=qemu-kvm exe=/usr/bin/qemu-kvm subj=system_u:system_r:svirt_t:s0:c370,c638 key=(null)

Hash: qemu-kvm,svirt_t,user_home_t,dir,write

audit2allow

#============= svirt_t ==============
#!!!! The source type 'svirt_t' can write to a 'dir' of the following types:
# qemu_var_run_t, var_t, tmp_t, svirt_tmp_t, tmpfs_t, hugetlbfs_t, virt_cache_t, var_run_t, svirt_image_t, svirt_tmpfs_t, dosfs_t

allow svirt_t user_home_t:dir write;

audit2allow -R

#============= svirt_t ==============
#!!!! The source type 'svirt_t' can write to a 'dir' of the following types:
# qemu_var_run_t, var_t, tmp_t, svirt_tmp_t, tmpfs_t, hugetlbfs_t, virt_cache_t, var_run_t, svirt_image_t, svirt_tmpfs_t, dosfs_t

allow svirt_t user_home_t:dir write;