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d1c53c8e87
linux/net/ipv6
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Werner Almesberger d1c53c8e87 icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes 
By using sizeof(_hdr), net/ipv6/raw.c:icmpv6_filter implicitly assumes
that any valid ICMPv6 message is at least eight bytes long, i.e., that
the message body is at least four bytes.

The DIS message of RPL (RFC 6550 section 6.2, from the 6LoWPAN world),
has a minimum length of only six bytes, and is thus blocked by
icmpv6_filter.

RFC 4443 seems to allow even a zero-sized body, making the minimum
allowable message size four bytes.

Signed-off-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-02 15:15:50 -07:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-07-03 14:55:13 -07:00
addrconf_core.c ipv6: add include file to suppress sparse warnings 2013-06-25 02:44:05 -07:00
addrconf.c ipv6: bump genid when delete/add address 2013-08-01 16:33:32 -07:00
addrlabel.c rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
af_inet6.c net: split rt_genid for ipv4 and ipv6 2013-07-31 14:56:36 -07:00
ah6.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
anycast.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
datagram.c net: ipv6: Unify {raw,udp}6_sock_seq_show. 2013-06-04 12:56:14 -07:00
esp6.c ah6/esp6: set transport header correctly for IPsec tunnel mode. 2013-01-08 12:41:30 +01:00
exthdrs_core.c ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header 2013-05-28 23:49:07 -07:00
exthdrs_offload.c ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
exthdrs.c ipv6: Store Router Alert option in IP6CB directly. 2013-01-13 20:17:14 -05:00
fib6_rules.c ipv6: fib6_rules should return exact return value 2013-08-01 00:26:22 -07:00
icmp.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
inet6_connection_sock.c ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id 2013-03-08 12:29:22 -05:00
inet6_hashtables.c soreuseport: TCP/IPv6 implementation 2013-01-23 13:44:01 -05:00
ip6_checksum.c ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library 2013-01-08 17:56:10 -08:00
ip6_fib.c net: ipv6 eliminate parameter "int addrlen" in function fib6_add_1 2013-07-24 14:24:56 -07:00
ip6_flowlabel.c ipv6 flowlabel: add __rcu annotations 2013-03-07 16:33:10 -05:00
ip6_gre.c ipv6,gre: do not leak info to user-space 2013-05-11 17:40:14 -07:00
ip6_icmp.c ipv6: Kill ipv6 dependency of icmpv6_send(). 2013-04-29 13:54:36 -04:00
ip6_input.c ipv6: don't accept node local multicast traffic from the wire 2013-03-29 14:57:33 -04:00
ip6_offload.c MPLS: Add limited GSO support 2013-05-27 22:50:59 -07:00
ip6_offload.h ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
ip6_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-07-03 14:55:13 -07:00
ip6_tunnel.c GRE: Refactor GRE tunneling code. 2013-03-26 12:27:18 -04:00
ip6mr.c ip6mr: change the prototype of ip6_mr_forward(). 2013-07-23 17:20:37 -07:00
ipcomp6.c ipv6: Add redirect support to all protocol icmp error handlers. 2012-07-12 00:25:15 -07:00
ipv6_sockglue.c ipv6: rename datagram_send_ctl and datagram_recv_ctl 2013-01-31 13:53:08 -05:00
Kconfig Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
Makefile net: ipv6: Add IPv6 support to the ping socket. 2013-05-25 21:07:49 -07:00
mcast.c ipv4, ipv6: send igmpv3/mld packets with TC_PRIO_CONTROL 2013-07-28 11:13:55 -07:00
mip6.c ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header 2013-05-28 23:49:07 -07:00
ndisc.c ndisc: bool initializations should use true and false 2013-07-16 12:13:31 -07:00
netfilter.c netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6 2013-05-23 11:58:55 +02:00
output_core.c ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header 2013-05-28 23:49:07 -07:00
ping.c net: ipv6: fix wrong ping_v6_sendmsg return value 2013-07-03 17:42:05 -07:00
proc.c snmp6: remove IPSTATS_MIB_CSUMERRORS 2013-05-31 16:26:49 -07:00
protocol.c ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
raw.c icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes 2013-08-02 15:15:50 -07:00
reassembly.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
route.c net: split rt_genid for ipv4 and ipv6 2013-07-31 14:56:36 -07:00
sit.c sit: fix tunnel update via netlink 2013-07-04 14:55:47 -07:00
syncookies.c tcp: Remove TCPCT 2013-03-17 14:35:13 -04:00
sysctl_net_ipv6.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
tcp_ipv6.c tcp: add tcp_syncookies mode to allow unconditionally generation of syncookies 2013-07-30 16:15:18 -07:00
tcpv6_offload.c net: Remove code duplication between offload structures 2012-11-15 17:39:51 -05:00
tunnel6.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
udp_impl.h ipv6: do not clear pinet6 field 2013-05-11 16:26:38 -07:00
udp_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-06-05 16:37:30 -07:00
udp.c net: rename ll methods to busy-poll 2013-07-10 17:08:27 -07:00
udplite.c ipv6: do not clear pinet6 field 2013-05-11 16:26:38 -07:00
xfrm6_input.c
xfrm6_mode_beet.c ipsec: be careful of non existing mac headers 2012-02-23 16:50:45 -05:00
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
xfrm6_output.c xfrm6: remove unneeded NULL check in __xfrm6_output() 2012-02-01 02:52:48 -05:00
xfrm6_policy.c xfrm6: release dev before returning error 2013-05-11 17:40:15 -07:00
xfrm6_state.c ipv6: use IS_ENABLED() 2012-11-01 12:41:35 -04:00
xfrm6_tunnel.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00