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linux/net/ipv6
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Mark Tomlinson c3f242a608 gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY 
[ Upstream commit 272502fcb7 ]

When receiving an IPv4 packet inside an IPv6 GRE packet, and the
IP6_TNL_F_RCV_DSCP_COPY flag is set on the tunnel, the IPv4 header would
get corrupted. This is due to the common ip6_tnl_rcv() function assuming
that the inner header is always IPv6. This patch checks the tunnel
protocol for IPv4 inner packets, but still defaults to IPv6.

Fixes: 308edfdf15 ("gre6: Cleanup GREv6 receive path, call common GRE functions")
Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-03 11:24:17 +02:00
..
ila ila: Fix rhashtable walker list corruption 2019-04-03 06:26:18 +02:00
netfilter netfilter: masquerade: don't flush all conntracks if only one address deleted on device 2019-11-20 18:47:52 +01:00
addrconf_core.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2020-04-29 16:31:17 +02:00
addrconf.c ipv6: don't auto-add link-local address to lag ports 2020-04-13 10:45:07 +02:00
addrlabel.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
af_inet6.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2020-04-29 16:31:17 +02:00
ah6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
anycast.c ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-08-11 15:32:34 +02:00
calipso.c netlabel: cope with NULL catmap 2020-05-20 08:18:35 +02:00
datagram.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
esp6_offload.c esp6: get the right proto for transport mode in esp6_gso_encap 2020-06-03 08:19:48 +02:00
esp6.c esp: Skip TX bytes accounting when sending from a request socket 2019-03-23 20:09:48 +01:00
exthdrs_core.c net: ipv6: Fix typo in ipv6_find_hdr() documentation 2018-05-07 23:50:27 -04:00
exthdrs_offload.c
exthdrs.c ipv6: make ipv6_renew_options() interrupt/kernel safe 2018-07-05 20:15:26 +09:00
fib6_notifier.c net: Add module reference to FIB notifiers 2017-09-01 20:33:42 -07:00
fib6_rules.c net/ipv6: Add fib6_lookup 2018-05-11 00:10:56 +02:00
fou6.c fou: make local function static 2017-05-21 13:42:36 -04:00
icmp.c ipv6: make icmp6_send() robust against null skb->dev 2019-01-22 21:40:35 +01:00
inet6_connection_sock.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
inet6_hashtables.c tcp/dccp: fix possible race __inet_lookup_established() 2020-01-04 19:13:41 +01:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-11-04 14:50:51 +01:00
ip6_fib.c ipv6: Fix route replacement with dev-only route 2020-03-05 16:42:16 +01:00
ip6_flowlabel.c ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero 2019-06-22 08:15:13 +02:00
ip6_gre.c ip6_gre: fix null-ptr-deref in ip6gre_init_net() 2020-07-31 18:37:47 +02:00
ip6_icmp.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ip6_input.c net: ipv6: fix listify ip6_rcv_finish in case of forwarding 2019-10-29 09:19:42 +01:00
ip6_offload.c gso_segment: Reset skb->mac_len after modifying network header 2018-09-13 12:09:32 -07:00
ip6_offload.h udp: Add GRO functions to UDP socket 2016-04-07 16:53:29 -04:00
ip6_output.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
ip6_tunnel.c gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY 2020-09-03 11:24:17 +02:00
ip6_udp_tunnel.c ipv6: explicitly initialize udp6_addr in udp_sock_create6() 2019-01-09 17:38:31 +01:00
ip6_vti.c vti6: Fix memory leak of skb if input policy check fails 2020-04-02 15:28:19 +02:00
ip6mr.c ip6mr: Do not call __IP6_INC_STATS() from preemptible context 2019-03-10 07:17:16 +01:00
ipcomp6.c net: inet: Support UID-based routing in IP protocols. 2016-11-04 14:45:23 -04:00
ipv6_sockglue.c ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-08-11 15:32:34 +02:00
Kconfig net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mcast_snoop.c
mcast.c mld: fix memory leak in ipv6_mc_destroy_dev() 2020-06-30 23:17:03 -04:00
mip6.c ktime: Get rid of ktime_equal() 2016-12-25 17:21:23 +01:00
ndisc.c ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called 2018-11-04 14:50:51 +01:00
netfilter.c netfilter: ipv6: Don't preserve original oif for loopback address 2019-02-27 10:09:03 +01:00
output_core.c inet: switch IP ID generator to siphash 2019-06-04 08:02:30 +02:00
ping.c ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()' 2019-09-19 09:09:28 +02:00
proc.c proc: introduce proc_create_net_single 2018-05-16 07:24:30 +02:00
protocol.c net: Add sysctl to toggle early demux for tcp and udp 2017-03-24 13:17:07 -07:00
raw.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
reassembly.c inet: frags: call inet_frags_fini() after unregister_pernet_subsys() 2020-01-27 14:50:51 +01:00
route.c Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu" 2020-05-20 08:18:36 +02:00
seg6_hmac.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-07-03 10:29:26 +09:00
seg6_iptunnel.c ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation 2019-02-06 17:30:06 +01:00
seg6_local.c ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions 2020-01-29 16:43:14 +01:00
seg6.c ipv6: propagate genlmsg_reply return code 2019-02-27 10:08:58 +01:00
sit.c sit: do not confirm neighbor when do pmtu update 2020-01-04 19:13:39 +01:00
syncookies.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
sysctl_net_ipv6.c ipv6: sr: Compute flowlabel for outer IPv6 header of seg6 encap mode 2018-04-25 13:02:15 -04:00
tcp_ipv6.c net: ipv6: add net argument to ip6_dst_lookup_flow 2020-04-29 16:31:16 +02:00
tcpv6_offload.c net: Convert GRO SKB handling to list_head. 2018-06-26 11:33:04 +09:00
tunnel6.c ipv6: fix tunnel error handling 2015-11-03 10:52:13 -05:00
udp_impl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
udp_offload.c net: Convert GRO SKB handling to list_head. 2018-06-26 11:33:04 +09:00
udp.c udp: Improve load balancing for SO_REUSEPORT. 2020-07-31 18:37:49 +02:00
udplite.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
xfrm6_input.c xfrm: reset transport header back to network header after all input transforms ahave been applied 2018-09-04 10:26:30 +02:00
xfrm6_mode_beet.c networking: make skb_pull & friends return void pointers 2017-06-16 11:48:39 -04:00
xfrm6_mode_ro.c ipv6: xfrm: use 64-bit timestamps 2018-07-11 15:26:35 +02:00
xfrm6_mode_transport.c xfrm: reset transport header back to network header after all input transforms ahave been applied 2018-09-04 10:26:30 +02:00
xfrm6_mode_tunnel.c xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto 2018-03-07 10:54:29 +01:00
xfrm6_output.c xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish 2020-04-29 16:31:23 +02:00
xfrm6_policy.c net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:13:37 +01:00
xfrm6_protocol.c xfrm: input: constify xfrm_input_afinfo 2017-02-09 10:22:17 +01:00
xfrm6_state.c xfrm: remove VLA usage in __xfrm6_sort() 2018-04-26 07:51:48 +02:00
xfrm6_tunnel.c xfrm: clean up xfrm protocol checks 2019-05-25 18:23:41 +02:00