Toke Høiland-Jørgensen cb66016b7b gso_segment: Reset skb->mac_len after modifying network header ... [ Upstream commit c56cae23c6b167acc68043c683c4573b80cbcc2c ] When splitting a GSO segment that consists of encapsulated packets, the skb->mac_len of the segments can end up being set wrong, causing packet drops in particular when using act_mirred and ifb interfaces in combination with a qdisc that splits GSO packets. This happens because at the time skb_segment() is called, network_header will point to the inner header, throwing off the calculation in skb_reset_mac_len(). The network_header is subsequently adjust by the outer IP gso_segment handlers, but they don't set the mac_len. Fix this by adding skb_reset_mac_len() calls to both the IPv4 and IPv6 gso_segment handlers, after they modify the network_header. Many thanks to Eric Dumazet for his help in identifying the cause of the bug. Acked-by: Dave Taht <dave.taht@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-09-29 03:08:52 -07:00
..
netfilter	netfilter: x_tables: set module owner for icmp(6) matches	2018-08-24 13:26:58 +02:00
af_inet.c	gso_segment: Reset skb->mac_len after modifying network header	2018-09-29 03:08:52 -07:00
ah4.c	ipsec: check return value of skb_to_sgvec always	2018-04-13 19:50:23 +02:00
arp.c	arp: fix arp_filter on l3slave devices	2018-04-13 19:50:24 +02:00
cipso_ipv4.c	Cipso: cipso_v4_optptr enter infinite loop	2018-09-05 09:18:33 +02:00
datagram.c
devinet.c	ipv4: igmp: guard against silly MTU values	2018-01-02 20:33:24 +01:00
esp4.c	ipsec: check return value of skb_to_sgvec always	2018-04-13 19:50:23 +02:00
fib_frontend.c	ipv4: remove BUG_ON() from fib_compute_spec_dst	2018-08-06 16:24:40 +02:00
fib_lookup.h
fib_rules.c
fib_semantics.c	ipv4: Fix error return value in fib_convert_metrics()	2018-07-11 16:03:47 +02:00
fib_trie.c	net: Improve handling of failures on link and route dumps	2017-06-07 12:05:58 +02:00
fou.c	net: add recursion limit to GRO	2016-11-15 07:46:38 +01:00
gre_demux.c
gre_offload.c	net: add recursion limit to GRO	2016-11-15 07:46:38 +01:00
icmp.c
igmp.c	net: igmp: add a missing rcu locking section	2018-02-16 20:09:37 +01:00
inet_connection_sock.c	tcp/dccp: fix other lockdep splats accessing ireq_opt	2017-11-18 11:11:07 +01:00
inet_diag.c
inet_fragment.c	inet: frag: enforce memory limits earlier	2018-08-06 16:24:41 +02:00
inet_hashtables.c
inet_lro.c
inet_timewait_sock.c	soreuseport: initialise timewait reuseport field	2018-05-16 10:06:50 +02:00
inetpeer.c
ip_forward.c
ip_fragment.c	inet: frag: release spinlock before calling icmp_send()	2017-12-25 14:22:11 +01:00
ip_gre.c
ip_input.c
ip_options.c
ip_output.c	ip: hash fragments consistently	2018-07-28 07:45:02 +02:00
ip_sockglue.c	ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull	2018-07-28 07:45:03 +02:00
ip_tunnel.c	ip_tunnel: better validate user provided tunnel names	2018-04-13 19:50:26 +02:00
ip_tunnel_core.c	tunnels: Remove encapsulation offloads on decap.	2016-10-31 04:13:59 -06:00
ip_vti.c	Revert "vti4: Don't override MTU passed on link creation via IFLA_MTU"	2018-05-30 22:11:35 +02:00
ipcomp.c
ipconfig.c	ipconfig: Correctly initialise ic_nameservers	2018-08-06 16:24:38 +02:00
ipip.c	ipip: only increase err_count for some certain type icmp in ipip_err	2017-11-18 11:11:06 +01:00
ipmr.c	ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route	2016-11-15 07:46:37 +01:00
Kconfig	ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV	2018-08-15 17:42:05 +02:00
Makefile
netfilter.c	netfilter: use skb_to_full_sk in ip_route_me_harder	2018-03-18 11:17:51 +01:00
ping.c	ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg	2018-05-26 08:48:46 +02:00
proc.c
protocol.c
raw.c	net: ipv4: fix for a race condition in raw_sendmsg	2018-01-02 20:33:25 +01:00
route.c	ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu	2018-05-30 07:49:04 +02:00
syncookies.c	tcp/dccp: fix ireq->opt races	2017-11-18 11:11:06 +01:00
sysctl_net_ipv4.c	ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns	2018-07-25 10:18:16 +02:00
tcp.c	tcp: identify cryptic messages as TCP seq # bugs	2018-08-24 13:27:00 +02:00
tcp_bic.c
tcp_cdg.c
tcp_cong.c	tcp: disallow cwnd undo when switching congestion control	2017-06-14 13:16:19 +02:00
tcp_cubic.c
tcp_dctcp.c	tcp: remove DELAYED ACK events in DCTCP	2018-08-24 13:26:59 +02:00
tcp_diag.c
tcp_fastopen.c	tcp: initialize max window for a new fastopen socket	2017-02-04 09:45:09 +01:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c	net/tcp/illinois: replace broken algorithm reference link	2018-05-30 07:49:02 +02:00
tcp_input.c	tcp: Fix missing range_truesize enlargement in the backport	2018-08-17 20:56:44 +02:00
tcp_ipv4.c	tcp: verify the checksum of the first data segment in a new connection	2018-07-03 11:21:25 +02:00
tcp_lp.c	tcp: fix wraparound issue in tcp_lp	2017-05-14 13:32:58 +02:00
tcp_memcontrol.c
tcp_metrics.c
tcp_minisocks.c	tcp: do not restart timewait timer on rst reception	2018-09-15 09:40:37 +02:00
tcp_offload.c
tcp_output.c	tcp: remove DELAYED ACK events in DCTCP	2018-08-24 13:26:59 +02:00
tcp_probe.c
tcp_recovery.c
tcp_scalable.c
tcp_timer.c	net: tcp: close sock if net namespace is exiting	2018-01-31 12:06:14 +01:00
tcp_vegas.c	tcp: fix under-evaluated ssthresh in TCP Vegas	2017-12-25 14:22:15 +01:00
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c	tcp: cwnd does not increase in TCP YeAH	2016-09-30 10:18:34 +02:00
tunnel4.c
udp.c	ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg	2018-05-26 08:48:46 +02:00
udp_diag.c
udp_impl.h
udp_offload.c	net: avoid skb_warn_bad_offload false positives on UFO	2017-08-12 19:29:08 -07:00
udp_tunnel.c
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c	ipv4: lock mtu in fnhe when received PMTU < net.ipv4.route.min_pmtu	2018-05-30 07:49:04 +02:00
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c