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Jan Engelhardt 9ef0298a8e netfilter: nf_log: avoid oops in (un)bind with invalid nfproto values 
Like many other places, we have to check that the array index is
within allowed limits, or otherwise, a kernel oops and other nastiness
can ensue when we access memory beyond the end of the array.

[ 5954.115381] BUG: unable to handle kernel paging request at 0000004000000000
[ 5954.120014] IP:  __find_logger+0x6f/0xa0
[ 5954.123979]  nf_log_bind_pf+0x2b/0x70
[ 5954.123979]  nfulnl_recv_config+0xc0/0x4a0 [nfnetlink_log]
[ 5954.123979]  nfnetlink_rcv_msg+0x12c/0x1b0 [nfnetlink]
...

The problem goes back to v2.6.30-rc1~1372~1342~31 where nf_log_bind
was decoupled from nf_log_register.

Reported-by: Miguel Di Ciurcio Filho <miguel.filho@gmail.com>,
  via irc.freenode.net/#netfilter
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
 		2011-03-02 12:10:13 +01:00
..
ipvs ipvs: fix dst_lock locking on dest update 2011-03-02 07:54:41 +09:00
Kconfig netfilter: fix module dependency issues with IPv6 defragmentation, ip6tables and xt_TPROXY 2010-10-25 13:58:36 -07:00
Makefile netfilter: add xt_cpu match 2010-07-23 12:59:36 +02:00
core.c netfilter: nf_iterate: fix incorrect RCU usage 2011-02-14 17:35:07 +01:00
nf_conntrack_acct.c netfilter: complete the deprecation of CONFIG_NF_CT_ACCT 2010-06-25 14:46:56 +02:00
nf_conntrack_amanda.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_core.c netfilter: nf_conntrack: set conntrack templates again if we return NF_REPEAT 2011-02-09 08:08:20 +01:00
nf_conntrack_ecache.c netfilter: ecache: always set events bits, filter them later 2011-02-01 16:06:30 +01:00
nf_conntrack_expect.c netfilter: fix the race when initializing nf_ct_expect_hash_rnd 2011-01-06 11:22:20 -08:00
nf_conntrack_extend.c Merge commit 'v2.6.36-rc7' into core/rcu 2010-10-07 09:43:45 +02:00
nf_conntrack_ftp.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_h323_asn1.c [NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper 2008-01-31 19:28:07 -08:00
nf_conntrack_h323_main.c net-next: remove useless union keyword 2010-06-10 23:31:35 -07:00
nf_conntrack_h323_types.c [NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper 2008-01-31 19:28:07 -08:00
nf_conntrack_helper.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nf_conntrack_irc.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_l3proto_generic.c [NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l3proto 2008-04-14 11:15:52 +02:00
nf_conntrack_netbios_ns.c net-next: remove useless union keyword 2010-06-10 23:31:35 -07:00
nf_conntrack_netlink.c netfilter: ctnetlink: fix missing refcount increment during dumps 2011-01-24 19:01:07 +01:00
nf_conntrack_pptp.c netfilter: nf_conntrack: add support for "conntrack zones" 2010-02-15 18:13:33 +01:00
nf_conntrack_proto.c netfilter: fix nf_conntrack_l4proto_register() 2010-10-29 19:59:40 +02:00
nf_conntrack_proto_dccp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nf_conntrack_proto_generic.c sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
nf_conntrack_proto_gre.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nf_conntrack_proto_sctp.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_conntrack_proto_tcp.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
nf_conntrack_proto_udp.c netfilter: nf_conntrack: pass template to l4proto ->error() handler 2010-02-15 17:45:08 +01:00
nf_conntrack_proto_udplite.c netfilter: nf_conntrack: pass template to l4proto ->error() handler 2010-02-15 17:45:08 +01:00
nf_conntrack_sane.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nf_conntrack_sip.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2010-10-21 08:21:34 -07:00
nf_conntrack_standalone.c netfilter: fix export secctx error handling 2011-01-06 11:25:00 -08:00
nf_conntrack_tftp.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_internals.h netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nf_log.c netfilter: nf_log: avoid oops in (un)bind with invalid nfproto values 2011-03-02 12:10:13 +01:00
nf_queue.c net/netfilter: __rcu annotations 2010-08-19 17:18:01 -07:00
nf_sockopt.c net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
nf_tproxy_core.c netfilter: tproxy: do not assign timewait sockets to skb->sk 2011-02-17 11:32:38 +01:00
nfnetlink.c netfilter: cleanup printk messages 2010-05-13 15:02:08 +02:00
nfnetlink_log.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2010-06-15 13:49:24 -07:00
nfnetlink_queue.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2010-06-15 13:49:24 -07:00
x_tables.c netfilter: x_tables: dont block BH while reading counters 2011-01-10 20:11:38 +01:00
xt_CHECKSUM.c netfilter: add CHECKSUM target 2010-07-15 17:20:46 +02:00
xt_CLASSIFY.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_CONNSECMARK.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_CT.c secmark: make secmark object handling generic 2010-10-21 10:12:48 +11:00
xt_DSCP.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_HL.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_IDLETIMER.c netfilter: xt_IDLETIMER needs kdev_t.h 2010-06-22 08:13:31 +02:00
xt_LED.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_NFLOG.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_NFQUEUE.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_NOTRACK.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_RATEEST.c pkt_sched: gen_kill_estimator() rcu fixes 2010-06-11 18:37:08 -07:00
xt_SECMARK.c secmark: make secmark object handling generic 2010-10-21 10:12:48 +11:00
xt_TCPMSS.c tcp: unify tcp flag macros 2010-06-15 11:56:19 -07:00
xt_TCPOPTSTRIP.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_TEE.c net: use the macros defined for the members of flowi 2010-11-17 12:27:45 -08:00
xt_TPROXY.c netfilter: tproxy: do not assign timewait sockets to skb->sk 2011-02-17 11:32:38 +01:00
xt_TRACE.c netfilter: xtables: substitute temporary defines by final name 2010-05-11 18:31:17 +02:00
xt_cluster.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_comment.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_connbytes.c netfilter: xt_connbytes: Force CT accounting to be enabled 2010-06-25 14:44:07 +02:00
xt_connlimit.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_connmark.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_conntrack.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_cpu.c netfilter: add xt_cpu match 2010-07-23 12:59:36 +02:00
xt_dccp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_dscp.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_esp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_hashlimit.c netfilter: xt_hashlimit: use proto_ports_offset() to support AH message 2010-08-19 17:16:25 -07:00
xt_helper.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_hl.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_iprange.c netfilter: xt_iprange: Incorrect xt_iprange boundary check for IPv6 2011-01-24 21:35:36 +01:00
xt_ipvs.c netfilter: remove duplicated include 2010-10-04 21:00:42 +02:00
xt_length.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_limit.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_mac.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_mark.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_multiport.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_osf.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_owner.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_physdev.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_pkttype.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_policy.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_quota.c xt_quota: report initial quota value instead of current value to userspace 2010-07-23 14:07:47 +02:00
xt_rateest.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_realm.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_recent.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
xt_repldata.h netfilter: xtables: generate initial table on-demand 2010-02-10 17:50:47 +01:00
xt_sctp.c netfilter: xt_sctp: use WORD_ROUND macro to calculate length of multiple of 4 bytes 2010-06-09 14:47:40 +02:00
xt_socket.c netfilter: tproxy: do not assign timewait sockets to skb->sk 2011-02-17 11:32:38 +01:00
xt_state.c netfilter: nf_conntrack: IPS_UNTRACKED bit 2010-06-08 16:09:52 +02:00
xt_statistic.c netfilter: xt_statistic: remove nth_lock spinlock 2010-06-01 12:00:41 +02:00
xt_string.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00
xt_tcpmss.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_tcpudp.c netfilter: xtables: change hotdrop pointer to direct modification 2010-05-11 18:35:27 +02:00
xt_time.c netfilter: remove unnecessary returns from void function()s 2010-05-13 15:16:27 +02:00
xt_u32.c netfilter: xtables: deconstify struct xt_action_param for matches 2010-05-11 18:33:37 +02:00