Here is the audit log:

  type=AVC msg=audit(1187644864.603:85): avc:  denied  { sys_nice } for 
pid=3956 comm="modprobe" capability=23
scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023
tcontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=capability

and the audit2why:

  type=AVC msg=audit(1187644864.603:85): avc:  denied  { sys_nice } for 
pid=3956 comm="modprobe" capability=23
scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023
tcontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=capability
        Was caused by:
                Missing or disabled TE allow rule.
                Allow rules may exist but be disabled by boolean settings; check
boolean settings.
                You can see the necessary allow rules by running audit2allow
with this audit message as input.

This is already in the rawhide policy so back porting to F7

Fixed in selinux-policy-2.6.4-40

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