Fix segfault on interfaces tables
Fix segfault on interfaces tables

getifaddrs(3) states that ifa_addr can be null. Check to make sure they are not null before accessing them

mchugh19/osquery,hackgnar/osquery,mchugh19/osquery,jedi22/osquery,mwielgoszewski/osquery,pathcl/osquery,mgoffin/osquery,jedi22/osquery,hackgnar/osquery,tburgin/osquery,mchugh19/osquery,pathcl/osquery,PoppySeedPlehzr/osquery,achmiel/osquery,jacknagz/osquery,justintime32/osquery,trizt/osquery,friedbutter/osquery,jacknagz/osquery,friedbutter/osquery,mwielgoszewski/osquery,jacknagz/osquery,jajce/osquery,jajce/osquery,PickmanSec/osquery,justintime32/osquery,mgoffin/osquery,jajce/osquery,justintime32/osquery,trizt/osquery,achmiel/osquery,pathcl/osquery,PoppySeedPlehzr/osquery,jedi22/osquery,PickmanSec/osquery,trizt/osquery,PickmanSec/osquery,mgoffin/osquery,PoppySeedPlehzr/osquery,tburgin/osquery,achmiel/osquery,friedbutter/osquery,hackgnar/osquery,mwielgoszewski/osquery,tburgin/osquery