linux/net/ipv6
Vlad Yasevich e87a468eb9 ipv6: Fix udp checksums with raw sockets
It was reported that trancerout6 would cause
a kernel to crash when trying to compute checksums
on raw UDP packets.  The cause was the check in
__ip6_append_data that would attempt to use
partial checksums on the packet.  However,
raw sockets do not initialize partial checksum
fields so partial checksums can't be used.

Solve this the same way IPv4 does it.  raw sockets
pass transhdrlen value of 0 to ip_append_data which
causes the checksum to be computed in software.  Use
the same check in ip6_append_data (check transhdrlen).

Reported-by: Wolfgang Walter <linux@stwm.de>
CC: Wolfgang Walter <linux@stwm.de>
CC: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 22:27:03 -04:00
..
netfilter netfilter: nf_tables: switch registers to 32 bit addressing 2015-04-13 17:17:29 +02:00
addrconf_core.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
addrconf.c dev: introduce dev_get_iflink() 2015-04-02 14:04:59 -04:00
addrlabel.c netlink: implement nla_put_in_addr and nla_put_in6_addr 2015-03-31 13:58:35 -04:00
af_inet6.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
ah6.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
anycast.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
datagram.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
esp6.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
exthdrs_core.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
exthdrs_offload.c ipv6: Fix exthdrs offload registration. 2014-03-06 16:35:55 -05:00
exthdrs.c net: Convert LIMIT_NETDEBUG to net_dbg_ratelimited 2014-11-11 14:10:31 -05:00
fib6_rules.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-04-06 22:34:15 -04:00
icmp.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
inet6_connection_sock.c net: convert syn_wait_lock to a spinlock 2015-03-23 16:52:26 -04:00
inet6_hashtables.c tcp/dccp: get rid of central timewait timer 2015-04-13 16:40:05 -04:00
ip6_checksum.c udp: Generic functions to set checksum 2014-06-04 22:46:38 -07:00
ip6_fib.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
ip6_flowlabel.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
ip6_gre.c ip6_gre: use netdev_alloc_pcpu_stats() 2015-04-22 15:39:05 -04:00
ip6_icmp.c ipv6: White-space cleansing : Line Layouts 2014-08-24 22:37:52 -07:00
ip6_input.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
ip6_offload.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
ip6_offload.h ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
ip6_output.c ipv6: Fix udp checksums with raw sockets 2015-05-14 22:27:03 -04:00
ip6_tunnel.c udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb(). 2015-04-07 15:29:08 -04:00
ip6_udp_tunnel.c udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb(). 2015-04-07 15:29:08 -04:00
ip6_vti.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-04-14 15:44:14 -04:00
ip6mr.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
ipcomp6.c ipv6: White-space cleansing : Structure layouts 2014-08-24 22:37:52 -07:00
ipv6_sockglue.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
Kconfig ip6_vti: Fix build when NET_IP_TUNNEL is not set. 2014-02-20 14:29:49 +01:00
Makefile udp_tunnel: Only build ip6_udp_tunnel.c when IPV6 is selected 2014-09-19 22:05:28 -04:00
mcast.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
mip6.c net: Convert LIMIT_NETDEBUG to net_dbg_ratelimited 2014-11-11 14:10:31 -05:00
ndisc.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
netfilter.c netfilter: Use nf_hook_state in nf_queue_entry. 2015-04-04 12:25:22 -04:00
output_core.c udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb(). 2015-04-07 15:29:08 -04:00
ping.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-09 23:38:02 -04:00
proc.c udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts 2014-11-07 15:45:50 -05:00
protocol.c net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
raw.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
reassembly.c ipv6: coding style: comparison for inequality with NULL 2015-03-31 13:51:54 -04:00
route.c ipv6: Fixed source specific default route handling. 2015-05-09 15:58:41 -04:00
sit.c ipv6: call iptunnel_xmit with NULL sock pointer if no tunnel sock is available 2015-04-08 12:09:43 -04:00
syncookies.c tcp: fix ipv4 mapped request socks 2015-03-25 00:57:48 -04:00
sysctl_net_ipv6.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
tcp_ipv6.c inet: fix possible panic in reqsk_queue_unlink() 2015-04-24 11:39:15 -04:00
tcpv6_offload.c tcp: cleanup static functions 2015-02-28 16:56:51 -05:00
tunnel6.c ipv6: White-space cleansing : gaps between function and symbol export 2014-08-24 22:37:52 -07:00
udp_impl.h net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
udp_offload.c ipv6: hash net ptr into fragmentation bucket selection 2015-03-25 14:07:04 -04:00
udp.c net: remove extra newlines 2015-04-07 22:24:37 -04:00
udplite.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
xfrm6_input.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
xfrm6_mode_beet.c xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
xfrm6_mode_ro.c ipv4/ipv6: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm6: Remove xfrm_tunnel_notifier 2014-03-14 07:28:08 +01:00
xfrm6_output.c netfilter: Pass socket pointer down through okfn(). 2015-04-07 15:25:55 -04:00
xfrm6_policy.c xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
xfrm6_protocol.c xfrm6: Properly handle unsupported protocols 2014-05-06 07:08:38 +02:00
xfrm6_state.c ipv6: White-space cleansing : Line Layouts 2014-08-24 22:37:52 -07:00
xfrm6_tunnel.c ipv6: White-space cleansing : gaps between function and symbol export 2014-08-24 22:37:52 -07:00