C:\netcat>nc -u -l -p6666
BUG: unable to handle kernel NULL pointer dereference at virtual address 0000003
4
 printing eip:
f90a8b06
*pde = 37e77001
Oops: 0000 [#1]
SMP
last sysfs file:
Modules linked in: netconsole(U) ip6table_filter(U) ip6_tables(U) iptable_raw(U)
 xt_comment(U) xt_policy(U) ipt_ULOG(U) ipt_TTL(U) ipt_TOS(U) ipt_SAME(U) ipt_RE
DIRECT(U) ipt_recent(U) ipt_owner(U) ipt_NETMAP(U) ipt_MASQUERADE(U) ipt_LOG(U)
ipt_iprange(U) ipt_hashlimit(U) ipt_ECN(U) ipt_ecn(U) ipt_DSCP(U) ipt_dscp(U) ip
t_CLUSTERIP(U) ipt_ah(U) ipt_addrtype(U) ip_nat_tftp(U) ip_nat_snmp_basic(U) ip_
nat_sip(U) ip_nat_pptp(U) ip_nat_irc(U) ip_nat_h323(U) ip_nat_ftp(U) ip_nat_aman
da(U) ip_conntrack_tftp(U) ip_conntrack_sip(U) ip_conntrack_pptp(U) ip_conntrack
_irc(U) ip_conntrack_h323(U) ip_conntrack_ftp(U) ts_kmp(U) ip_conntrack_amanda(U
) xt_pkttype(U) xt_physdev(U) bridge(U) xt_NFQUEUE(U) xt_MARK(U) xt_mark(U) xt_m
ac(U) xt_helper(U) xt_dccp(U) xt_conntrack(U) xt_CONNMARK(U) xt_connmark(U) xt_C
LASSIFY(U) iptable_nat(U) simfs(U) vznetdev(U) vzethdev(U) vzrst(U) ip_nat(U) vz
cpt(U) vzdquota(U) vzmon(U) vzdev(U) xt_length(U) ipt_ttl(U) xt_tcpmss(U) ipt_TC
PMSS(U) iptable_mangle(U) xt_multiport(U) xt_limit(U) ipt_tos(U) ipv6(U) ipmi_de
vintf(U) ipmi_si(U) ipmi_msghandler(U) ip_conntrack_netbios_ns(U) ipt_REJECT(U)
xt_state(U) ip_conntrack(U) nfnetlink(U) xt_tcpudp(U) iptable_filter(U) ip_table
s(U) x_tables(U) cpufreq_ondemand(U) video(U) sbs(U) i2c_ec(U) button(U) battery
(U) asus_acpi(U) ac(U) parport_pc(U) lp(U) parport(U) sg(U) pcspkr(U) e1000(U) i
2c_i801(U) i2c_core(U) ide_cd(U) serio_raw(U) cdrom(U) dm_snapshot(U) dm_zero(U)
 dm_mirror(U) dm_mod(U) megaraid_mbox(U) sd_mod(U) scsi_mod(U) megaraid_mm(U) ex
t3(U) jbd(U) ehci_hcd(U) ohci_hcd(U) uhci_hcd(U)
CPU:    4, VCPU: 0.1
EIP:    0060:[<f90a8b06>]    Not tainted VLI
EFLAGS: 00010282   (2.6.18-8.el5.028stab031.1PAE #1)
EIP is at ip6t_unregister_table+0x7/0x14b [ip6_tables]
eax: 00000000   ebx: 00000000   ecx: e9169a98   edx: e9169a98
esi: e9594000   edi: 00000007   ebp: 00000000   esp: d13e1f64
ds: 007b   es: 007b   ss: 0068
Process vzmond/201 (pid: 31614, veid: 0, ti=d13e0000 task=d1206c90 task.ti=d13e0
000)
Stack: e8f62ec0 f7d11800 f90a1eb8 00000003 00000000 e9594000 00000007 00000000
       f90a1029 f8f0ebbf e9594000 e9594028 c06bbd00 00000000 f8f0ffaa 00000000
       d13e1fca e9594000 00000000 f8f10086 d13e1fca d13e1fca 00000012 f8f11e06
 Call Trace:
 [<f90a1029>] fini_ip6table_filter+0x29/0x43 [ip6table_filter]
 [<f8f0ebbf>] do_ve_iptables+0xa95/0xf4c [vzmon]
 [<f8f0ffaa>] env_cleanup+0xa3/0x157 [vzmon]
 [<f8f10086>] vzmond_helper+0x28/0x34 [vzmon]
 [<f8f1005e>] vzmond_helper+0x0/0x34 [vzmon]
 [<c05fd20f>] kernel_thread_helper+0x7/0x10
 =======================
Code: 0f 85 e1 fe ff ff 8b 44 24 04 89 38 eb 0c bb fe ff ff ff eb 05 bb b6 ff ff
 ff 83 c4 10 89 d8 5b 5e 5f 5d c3 55 57 56 53 83 ec 10 <8b> 50 34 89 54 24 08 e8
 d2 0e ac ff 89 04 24 89 e0 8b 14 24 25
EIP: [<f90a8b06>] ip6t_unregister_table+0x7/0x14b [ip6_tables] SS:ESP 0068:d13e1
f64
Kernel panic - not syncing: Fatal exception