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a497097d35
linux-kernel-test/net/netfilter
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Michal Miroslaw a497097d35 [NETFILTER]: nfnetlink_log: fix NULL pointer dereference 
Fix the nasty NULL dereference on multiple packets per netlink message.

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
f8a4b3bf
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: nfnetlink_log ipt_ttl ipt_REDIRECT xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 xt_state ipt_ipp2p xt_NFLOG xt_hashlimit ip6_tables iptable_filter xt_multiport xt_mark ipt_set iptable_raw xt_MARK iptable_mangle ip_tables cls_fw cls_u32 sch_esfq sch_htb ip_set_ipmap ip_set ipt_ULOG x_tables dm_snapshot dm_mirror loop e1000 parport_pc parport e100 floppy ide_cd cdrom
CPU:    0
EIP:    0060:[<f8a4b3bf>]    Not tainted VLI
EFLAGS: 00010206   (2.6.20 #5)
EIP is at __nfulnl_send+0x24/0x51 [nfnetlink_log]
eax: 00000000   ebx: f2b5cbc0   ecx: c03f5f54   edx: c03f4000
esi: f2b5cbc8   edi: c03f5f54   ebp: f8a4b3ec   esp: c03f5f30
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, ti=c03f4000 task=c03bece0 task.ti=c03f4000)
Stack: f2b5cbc0 f8a4b401 00000100 c0444080 c012af49 00000000 f6f19100 f6f19000
       c1707800 c03f5f54 c03f5f54 00000123 00000021 c03e8d08 c0426380 00000009
       c0126932 00000000 00000046 c03e9980 c03e6000 0047b007 c01269bd 00000000
Call Trace:
 [<f8a4b401>] nfulnl_timer+0x15/0x25 [nfnetlink_log]
 [<c012af49>] run_timer_softirq+0x10a/0x164
 [<c0126932>] __do_softirq+0x60/0xba
 [<c01269bd>] do_softirq+0x31/0x35
 [<c0104f6e>] do_IRQ+0x62/0x74
 [<c01036cb>] common_interrupt+0x23/0x28
 [<c0101018>] default_idle+0x0/0x3f
 [<c0101045>] default_idle+0x2d/0x3f
 [<c01010fa>] cpu_idle+0xa0/0xb9
 [<c03fb7f5>] start_kernel+0x1a8/0x1ac
 [<c03fb293>] unknown_bootoption+0x0/0x181
 =======================
Code: 5e 5f 5b 5e 5f 5d c3 53 89 c3 8d 40 1c 83 7b 1c 00 74 05 e8 2c ee 6d c7 83 7b 14 00 75 04 31 c0 eb 34 83 7b 10 01 76 09 8b 43 18 <66> c7 40 04 03 00 8b 53 34 8b 43 14 b9 40 00 00 00 e8 08 9a 84
EIP: [<f8a4b3bf>] __nfulnl_send+0x24/0x51 [nfnetlink_log] SS:ESP 0068:c03f5f30
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 <0>Rebooting in 5 seconds..

Panic no more!

Signed-off-by: Micha Mirosaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-05 13:25:23 -08:00
..
core.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
Kconfig [NETFILTER]: Kconfig: improve dependency handling 2007-02-12 11:15:02 -08:00
Makefile [NETFILTER]: add IPv6-capable TCPMSS target 2007-02-08 12:39:16 -08:00
nf_conntrack_amanda.c [NETFILTER]: nf_conntrack: fix header inclusions for helpers 2006-12-02 22:12:54 -08:00
nf_conntrack_core.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_ecache.c [NETFILTER]: nf_conntrack: fix header inclusions for helpers 2006-12-02 22:12:54 -08:00
nf_conntrack_expect.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_ftp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_h323_asn1.c [NETFILTER]: nf_conntrack/nf_nat: add H.323 helper port 2006-12-02 22:08:46 -08:00
nf_conntrack_h323_main.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_h323_types.c [NETFILTER]: nf_conntrack/nf_nat: add H.323 helper port 2006-12-02 22:08:46 -08:00
nf_conntrack_helper.c [NETFILTER]: nf_conntrack: EXPORT_SYMBOL cleanup 2006-12-02 22:11:25 -08:00
nf_conntrack_irc.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_l3proto_generic.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_netbios_ns.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_netlink.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_pptp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_proto_generic.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
nf_conntrack_proto_gre.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_proto_sctp.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
nf_conntrack_proto_tcp.c [NETFILTER]: tcp conntrack: accept SYN|URG as valid 2007-03-05 13:25:20 -08:00
nf_conntrack_proto_udp.c [NETFILTER]: nf_conntrack/nf_nat: fix incorrect config ifdefs 2007-03-05 13:25:19 -08:00
nf_conntrack_proto.c [NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void 2007-02-12 11:14:28 -08:00
nf_conntrack_sane.c [NETFILTER]: Add SANE connection tracking helper 2007-02-08 12:39:09 -08:00
nf_conntrack_sip.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_conntrack_standalone.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
nf_conntrack_tftp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_internals.h [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_log.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_queue.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_sockopt.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nf_sysctl.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
nfnetlink_log.c [NETFILTER]: nfnetlink_log: fix NULL pointer dereference 2007-03-05 13:25:23 -08:00
nfnetlink_queue.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
nfnetlink.c [NET]: Handle disabled preemption in gfp_any() 2007-02-28 09:42:13 -08:00
x_tables.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_CLASSIFY.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_comment.c [NETFILTER]: x_tables: make use of mass registation helpers 2006-09-22 14:55:32 -07:00
xt_connbytes.c [NETFILTER]: xt_connbytes: fix division by zero 2007-01-30 14:24:29 -08:00
xt_connmark.c [NETFILTER]: x_tables: error if ip_conntrack is asked to handle IPv6 packets 2006-12-13 16:48:20 -08:00
xt_CONNMARK.c [NETFILTER]: Remove useless comparisons before assignments 2007-02-08 12:39:11 -08:00
xt_CONNSECMARK.c [NETFILTER]: Remove useless comparisons before assignments 2007-02-08 12:39:11 -08:00
xt_conntrack.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_dccp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_dscp.c [NETFILTER]: x_tables: remove unused size argument to check/destroy functions 2006-09-22 14:55:34 -07:00
xt_DSCP.c [NETFILTER]: x_tables: remove unused size argument to check/destroy functions 2006-09-22 14:55:34 -07:00
xt_esp.c [NETFILTER]: x_tables: remove unused size argument to check/destroy functions 2006-09-22 14:55:34 -07:00
xt_hashlimit.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_helper.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_length.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_limit.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_mac.c [NETFILTER]: xt_mac/xt_CLASSIFY: use IPv6 hook names for IPv6 registration 2007-02-12 11:14:43 -08:00
xt_mark.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_MARK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_multiport.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_NFLOG.c [NETFILTER]: x_tables: add NFLOG target 2006-12-02 21:31:31 -08:00
xt_NFQUEUE.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_NOTRACK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_physdev.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_pkttype.c [NETFILTER]: x_tables: make use of mass registation helpers 2006-09-22 14:55:32 -07:00
xt_policy.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_quota.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_realm.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_sctp.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_SECMARK.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_state.c [NETFILTER]: x_tables: error if ip_conntrack is asked to handle IPv6 packets 2006-12-13 16:48:20 -08:00
xt_statistic.c [NETFILTER]: x_tables: remove unused size argument to check/destroy functions 2006-09-22 14:55:34 -07:00
xt_string.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_tcpmss.c [NETFILTER]: Fix whitespace errors 2007-02-12 11:15:49 -08:00
xt_TCPMSS.c [NETFILTER]: add IPv6-capable TCPMSS target 2007-02-08 12:39:16 -08:00
xt_tcpudp.c [NET]: Supporting UDP-Lite (RFC 3828) in Linux 2006-12-02 21:22:46 -08:00