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f4a87e7bd2
linux-next/net/ipv4
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Patrick McHardy f4a87e7bd2 netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets 
TCP packets hitting the SYN proxy through the SYNPROXY target are not
validated by TCP conntrack. When th->doff is below 5, an underflow happens
when calculating the options length, causing skb_header_pointer() to
return NULL and triggering the BUG_ON().

Handle this case gracefully by checking for NULL instead of using BUG_ON().

Reported-by: Martin Topholm <mph@one.com>
Tested-by: Martin Topholm <mph@one.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-09-30 12:44:38 +02:00
..
netfilter netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets 2013-09-30 12:44:38 +02:00
af_inet.c net: make snmp_mib_free static inline 2013-09-02 21:00:50 -07:00
ah4.c ipv4: properly refresh rtable entries on pmtu/redirect events 2013-06-03 00:07:42 -07:00
arp.c net: neighbour: Remove CONFIG_ARPD 2013-09-03 21:41:43 -04:00
cipso_ipv4.c cipso: don't follow a NULL pointer when setsockopt() is called 2012-07-18 09:01:12 -07:00
datagram.c ipv4: Add a socket release callback for datagram sockets 2013-01-21 14:17:05 -05:00
devinet.c net: igmp: Allow user-space configuration of igmp unsolicited report interval 2013-08-09 11:27:46 -07:00
esp4.c net: esp{4,6}: fix potential MTU calculation overflows 2013-08-05 12:26:50 -07:00
fib_frontend.c netlink: fix splat in skb_clone with large messages 2013-06-27 22:44:16 -07:00
fib_lookup.h ipv4: Fix nexthop caching wrt. scoping. 2011-03-24 18:06:47 -07:00
fib_rules.c fib_rules: fix suppressor names and default values 2013-08-03 10:40:23 -07:00
fib_semantics.c ipv4: use next hop exceptions also for input routes 2013-06-28 21:27:47 -07:00
fib_trie.c fib_trie: remove potential out of bound access 2013-08-05 15:26:11 -07:00
gre_demux.c net: gre: move GSO functions to gre_offload 2013-07-03 14:37:39 -07:00
gre_offload.c gso: Update tunnel segmentation to support Tx checksum offload 2013-07-11 12:18:49 -07:00
icmp.c icmp: avoid allocating large struct on stack 2013-06-03 00:28:44 -07:00
igmp.c net: igmp: Allow user-space configuration of igmp unsolicited report interval 2013-08-09 11:27:46 -07:00
inet_connection_sock.c tcp: Remove TCPCT 2013-03-17 14:35:13 -04:00
inet_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
inet_fragment.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-07-09 18:24:39 -07:00
inet_hashtables.c inet: fix spacing in assignment 2013-07-11 12:02:39 -07:00
inet_lro.c ipv4: replace ip_fast_csum with csum_replace2 2013-03-15 09:12:25 -04:00
inet_timewait_sock.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
inetpeer.c Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2012-10-02 09:54:49 -07:00
ip_forward.c ipv4: introduce rt_uses_gateway 2012-10-08 17:42:36 -04:00
ip_fragment.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
ip_gre.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-16 15:37:26 -07:00
ip_input.c net: add SNMP counters tracking incoming ECN bits 2013-08-08 22:24:59 -07:00
ip_options.c net/ipv4: Ensure that location of timestamp option is stored 2013-03-12 05:35:39 -04:00
ip_output.c xfrm: introduce helper for safe determination of mtu 2013-08-14 13:09:07 +02:00
ip_sockglue.c net: prevent setting ttl=0 via IP_TTL 2013-01-08 17:57:10 -08:00
ip_tunnel_core.c tunnels: harmonize cleanup done on skb on xmit path 2013-09-04 00:27:25 -04:00
ip_tunnel.c tunnels: harmonize cleanup done on skb on rx path 2013-09-04 00:27:26 -04:00
ip_vti.c ipip: add x-netns support 2013-08-15 01:00:20 -07:00
ipcomp.c ipv4: properly refresh rtable entries on pmtu/redirect events 2013-06-03 00:07:42 -07:00
ipconfig.c ipconfig: add informative timeout messages while waiting for carrier 2013-04-02 14:35:33 -04:00
ipip.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
ipmr.c tunnels: harmonize cleanup done on skb on rx path 2013-09-04 00:27:26 -04:00
Kconfig net: neighbour: Remove CONFIG_ARPD 2013-09-03 21:41:43 -04:00
Makefile net: gre: move GSO functions to gre_offload 2013-07-03 14:37:39 -07:00
netfilter.c netfilter: add my copyright statements 2013-04-18 20:27:55 +02:00
ping.c net: proc_fs: trivial: print UIDs as unsigned int 2013-08-15 14:37:46 -07:00
proc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-16 15:37:26 -07:00
protocol.c ipv4: Disallow non-namespace aware protocols to register. 2013-02-05 14:42:23 -05:00
raw.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
route.c ipv4: raise IP_MAX_MTU to theoretical limit 2013-08-20 15:05:04 -07:00
syncookies.c net: syncookies: export cookie_v4_init_sequence/cookie_v4_check 2013-08-28 00:27:44 +02:00
sysctl_net_ipv4.c tcp: TSO packets automatic sizing 2013-08-29 15:50:06 -04:00
tcp_bic.c tcp: fix undo after RTO for BIC 2012-01-20 14:17:26 -05:00
tcp_cong.c tcp: remove Appropriate Byte Count support 2013-02-05 14:51:16 -05:00
tcp_cubic.c tcp: cubic: fix bug in bictcp_acked() 2013-08-07 10:35:08 -07:00
tcp_diag.c inet_diag: Rename inet_diag_req into inet_diag_req_v2 2012-01-11 12:56:06 -08:00
tcp_fastopen.c tcp: add server ip to encrypt cookie in fast open 2013-08-10 00:35:33 -07:00
tcp_highspeed.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_htcp.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_hybla.c tcp: bool conversions 2012-05-17 14:59:59 -04:00
tcp_illinois.c net: fix divide by zero in tcp algorithm illinois 2012-11-01 11:55:59 -04:00
tcp_input.c tcp: properly increase rcv_ssthresh for ofo packets 2013-09-06 14:43:49 -04:00
tcp_ipv4.c tcp: Change return value of tcp_rcv_established() 2013-09-04 00:27:28 -04:00
tcp_lp.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp_memcontrol.c cgroup: pass around cgroup_subsys_state instead of cgroup in file methods 2013-08-08 20:11:24 -04:00
tcp_metrics.c tcp: fix RTO calculated from cached RTT 2013-09-17 19:08:08 -04:00
tcp_minisocks.c tcp: consolidate SYNACK RTT sampling 2013-07-22 17:53:42 -07:00
tcp_offload.c net: tcp: move GRO/GSO functions to tcp_offload 2013-06-07 14:39:05 -07:00
tcp_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
tcp_probe.c tcp: Change return value of tcp_rcv_established() 2013-09-04 00:27:28 -04:00
tcp_scalable.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_timer.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_vegas.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_vegas.h
tcp_veno.c tcp: mark tcp_congestion_ops read_mostly 2011-03-10 00:40:17 -08:00
tcp_westwood.c tcp: refactor F-RTO 2013-03-21 11:47:50 -04:00
tcp_yeah.c Fix common misspellings 2011-03-31 11:26:23 -03:00
tcp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
tunnel4.c net: Convert printks to pr_<level> 2012-03-11 23:42:51 -07:00
udp_diag.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
udp_impl.h ipv4: fix checkpatch errors 2012-04-15 12:37:19 -04:00
udp_offload.c net: udp4: move GSO functions to udp_offload 2013-06-12 00:47:25 -07:00
udp.c net: unify skb_udp_tunnel_segment() and skb_udp6_tunnel_segment() 2013-08-31 22:30:01 -04:00
udplite.c net: ipv4: Standardize prefixes for message logging 2012-03-12 17:05:21 -07:00
xfrm4_input.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
xfrm4_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
xfrm4_output.c xfrm: revert ipv4 mtu determination to dst_mtu 2013-08-26 12:40:53 +02:00
xfrm4_policy.c xfrm: make gc_thresh configurable in all namespaces 2013-02-06 11:36:29 +01:00
xfrm4_state.c xfrm: make local error reporting more robust 2013-08-14 13:07:12 +02:00
xfrm4_tunnel.c sit: add IPv4 over IPv4 support 2013-05-31 17:19:05 -07:00