Update to --destination empty: If empty, destination is filled with
bytes from heap or stack, most likely on the user-side and not in
kernel. The example below uses 4 bytes of -j target as netmask.

iptables -N TEST
iptables -N AAAAAAAAAAAAAAAAAAAAAAAAA
iptables -A TEST --destination "" -p tcp -m tcp --dport 65535 -j 
AAAAAAAAAAAAAAAAAAAAAAAAA

iptables-save | grep TEST
-A TEST -d 0.0.0.0/65.65.65.65 -p tcp -m tcp --dport 65535 -j 
AAAAAAAAAAAAAAAAAAAAAAAAA

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https://bugs.launchpad.net/bugs/782201

Title:
  iptables segfault on emtpy source address

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