Description of problem:
After last night's F20 upgrade dhclient segfaults here with 'dhclient <interface>':

(gdb) bt
#0  if_register_socket (info=info@entry=0x7f0ad2e73840, family=family@entry=2, 
    do_multicast=do_multicast@entry=0x0) at socket.c:248
#1  0x00007f0ad1aba52c in if_register_fallback (info=0x7f0ad2e73840) at socket.c:325
#2  0x00007f0ad1aa4479 in maybe_setup_fallback () at lpf.c:584
#3  0x00007f0ad1a9e10e in discover_interfaces (state=4) at discover.c:954
#4  0x00007f0ad1a8018a in main (argc=<optimized out>, argv=<optimized out>) at dhclient.c:922
(gdb) 
#0  if_register_socket (info=info@entry=0x7f0ad2e73840, family=family@entry=2, 
    do_multicast=do_multicast@entry=0x0) at socket.c:248
#1  0x00007f0ad1aba52c in if_register_fallback (info=0x7f0ad2e73840) at socket.c:325
#2  0x00007f0ad1aa4479 in maybe_setup_fallback () at lpf.c:584
#3  0x00007f0ad1a9e10e in discover_interfaces (state=4) at discover.c:954
#4  0x00007f0ad1a8018a in main (argc=<optimized out>, argv=<optimized out>) at dhclient.c:922


Version-Release number of selected component (if applicable):
dhclient-4.2.5-21.fc20.x86_64

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info: