Issue

• kernel panic happens when performing 'service arptables_jf status'.

  Unable to handle kernel paging request at ffffffffa0186d70 RIP:
  <ffffffff802c6950>{nf_sockopt+129}
  PML4 103027 PGD 105027 PMD 12b892067 PTE 0
  Oops: 0000 [1] SMP
  CPU 3
  Modules linked in: arptable_filter arp_tables md5 ipv6 parport_pc lp parport aud
  Pid: 5143, comm: arptables Not tainted 2.6.9-78.0.8.ELsmp
  RIP: 0010:[<ffffffff802c6950>] <ffffffff802c6950>{nf_sockopt+129}
  RSP: 0018:0000010122405cd8  EFLAGS: 00010207
  RAX: 0000000000000002 RBX: ffffffffa0186d60 RCX: 0000007fbffffa60
  RDX: 00000000fffffffc RSI: 0000000000000084 RDI: ffffffff8042dc80
  RBP: 000001000574b500 R08: 0000010122405d3c R09: 0000000000000001
  R10: 0000007fbffffa60 R11: ffffffff802f6278 R12: ffffffff8042dc80
  R13: 0000000000000060 R14: 0000010122405d3c R15: 0000007fbffffa60
  FS:  0000002a9557a400(0000) GS:ffffffff8050d980(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  CR2: ffffffffa0186d70 CR3: 0000000005774000 CR4: 00000000000006e0
  Process arptables (pid: 5143, threadinfo 0000010122404000, task 00000101236247f)
  Stack: 0000000000000075 0000000200000001 0000010122803b40 0000010122404000
        0000010122803dc0 0000007fbffffa5c 0000010122803b40 0000000000000060
        0000007fbffffa60 ffffffff802ddd3a
  Call Trace:<ffffffff802ddd3a>{ip_getsockopt+1150} <ffffffff8016c1cc>{do_no_page<br />      <ffffffff801f03c7>{vsnprintf+1406} <ffffffff801f05e6>{sprintf+136}
        <ffffffff8016a4d8>{unmap_vmas+1345} <ffffffff80192de5>{d_rehash+104}
        <ffffffff8017ca95>{fget+74} <ffffffff802b5de6>{sys_getsockopt+120}
        <ffffffff801102f6>{system_call+126}
  
  Code: 39 43 10 0f 85 bc 00 00 00 48 8b 55 18 48 85 d2 74 21 65 8b
  RIP <ffffffff802c6950>{nf_sockopt+129} RSP <0000010122405cd8>
  CR2: ffffffffa0186d70
  <0>Kernel panic - not syncing: Oops