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linux/net/ipv4
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Hannes Frederic Sowa a8c4a2522a ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL 
Otherwise we break the contract with GSO to only pass CHECKSUM_PARTIAL
skbs down. This can easily happen with UDP+IPv4 sockets with the first
MSG_MORE write smaller than the MTU, second write is a sendfile.

Returning -EOPNOTSUPP lets the callers fall back into normal sendmsg path,
were we calculate the checksum manually during copying.

Commit d749c9cbff ("ipv4: no CHECKSUM_PARTIAL on MSG_MORE corked
sockets") started to exposes this bug.

Fixes: d749c9cbff ("ipv4: no CHECKSUM_PARTIAL on MSG_MORE corked sockets")
Reported-by: Jiri Benc <jbenc@redhat.com>
Cc: Jiri Benc <jbenc@redhat.com>
Reported-by: Wakko Warner <wakko@animx.eu.org>
Cc: Wakko Warner <wakko@animx.eu.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24 14:11:34 -05:00
..
netfilter
inet: frag: Always orphan skbs inside ip_defrag()
2016-01-28 16:00:46 -08:00
af_inet.c
net: add validation for the socket syscall protocol argument
2015-12-14 16:09:30 -05:00
ah4.c
ah4: Fix error return in ah_input().
2015-08-25 13:38:50 -07:00
arp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
cipso_ipv4.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
datagram.c
net: Set sk_txhash from a random number
2015-07-29 22:44:04 -07:00
devinet.c
rtnl: RTM_GETNETCONF: fix wrong return value
2016-02-19 15:33:46 -05:00
esp4.c
esp4: Switch to new AEAD interface
2015-05-28 11:23:20 +08:00
fib_frontend.c
net: Flush local routes when device changes vrf association
2015-12-13 23:58:44 -05:00
fib_lookup.h
ipv4: consider TOS in fib_select_default
2015-07-24 22:46:11 -07:00
fib_rules.c
net: ipv6: use common fib_default_rule_pref
2015-09-09 14:19:50 -07:00
fib_semantics.c
net: Fix prefsrc lookups
2015-11-04 21:34:37 -05:00
fib_trie.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-02-01 15:56:08 -08:00
fou.c
udp: restrict offloads to one namespace
2016-01-10 17:28:24 -05:00
gre_demux.c
gre: Remove support for sharing GRE protocol hook.
2015-08-10 14:03:54 -07:00
gre_offload.c
ipv6: gre: support SIT encapsulation
2015-10-26 22:01:18 -07:00
icmp.c
Revert "ipv4/icmp: redirect messages can use the ingress daddr as source"
2015-10-14 06:01:07 -07:00
igmp.c
ipv4: igmp: Allow removing groups from a removed interface
2015-12-03 12:07:05 -05:00
inet_connection_sock.c
tcp/dccp: fix another race at listener dismantle
2016-02-18 11:35:51 -05:00
inet_diag.c
net: diag: support v4mapped sockets in inet_diag_find_one_icsk()
2016-01-20 18:51:31 -08:00
inet_fragment.c
inet: kill unused skb_free op
2016-01-05 22:25:57 -05:00
inet_hashtables.c
tcp/dccp: fix hashdance race for passive sessions
2015-10-23 05:42:21 -07:00
inet_lro.c
…
inet_timewait_sock.c
tcp/dccp: fix timewait races in timer handling
2015-09-21 16:32:29 -07:00
inetpeer.c
net: Add helper function to compare inetpeer addresses
2015-08-28 13:32:36 -07:00
ip_forward.c
net: Pass net into dst_output and remove dst_output_okfn
2015-10-08 04:26:54 -07:00
ip_fragment.c
inet: frag: Always orphan skbs inside ip_defrag()
2016-01-28 16:00:46 -08:00
ip_gre.c
gre: clear IFF_TX_SKB_SHARING
2016-02-18 14:43:48 -05:00
ip_input.c
ipv4: early demux should be aware of fragments
2016-01-29 15:14:20 -05:00
ip_options.c
ipv4: coding style: comparison for inequality with NULL
2015-04-03 12:11:15 -04:00
ip_output.c
ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL
2016-02-24 14:11:34 -05:00
ip_sockglue.c
ipv4: fix memory leaks in ip_cmsg_send() callers
2016-02-13 05:57:39 -05:00
ip_tunnel_core.c
ipv4: fix endianness warnings in ip_tunnel_core.c
2016-01-08 21:30:43 -05:00
ip_tunnel.c
tunnel: Clear IPCB(skb)->opt before dst_link_failure called
2016-02-23 19:11:56 -05:00
ip_vti.c
ip_tunnel: Move stats update to iptunnel_xmit()
2015-12-25 23:32:23 -05:00
ipcomp.c
ipv4: coding style: comparison for equality with NULL
2015-04-03 12:11:15 -04:00
ipconfig.c
ipv4: ipconfig: avoid unused ic_proto_used symbol
2016-01-29 19:39:09 -08:00
ipip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-31 18:20:10 -05:00
ipmr.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-03 21:09:12 -05:00
Kconfig
ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV
2016-01-25 10:45:41 -08:00
Makefile
net: drop tcp_memcontrol.c
2016-01-20 17:09:18 -08:00
netfilter.c
ipv4: Pass struct net into ip_route_me_harder
2015-09-29 20:21:32 +02:00
ping.c
ipv4: fix memory leaks in ip_cmsg_send() callers
2016-02-13 05:57:39 -05:00
proc.c
net: track success and failure of TCP PMTU probing
2015-07-21 22:36:33 -07:00
protocol.c
net: Export inet_offloads and inet6_offloads
2014-09-19 17:15:31 -04:00
raw.c
ipv4: fix memory leaks in ip_cmsg_send() callers
2016-02-13 05:57:39 -05:00
route.c
route: check and remove route cache when we get route
2016-02-18 11:31:36 -05:00
syncookies.c
net: Allow accepted sockets to be bound to l3mdev domain
2015-12-18 14:43:38 -05:00
sysctl_net_ipv4.c
net: drop tcp_memcontrol.c
2016-01-20 17:09:18 -08:00
tcp_bic.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_cdg.c
tcp: do not slow start when cwnd equals ssthresh
2015-07-09 14:22:52 -07:00
tcp_cong.c
tcp: remove tcp_ecn_make_synack() socket argument
2015-09-25 13:00:38 -07:00
tcp_cubic.c
tcp_cubic: do not set epoch_start in the future
2015-09-17 22:35:07 -07:00
tcp_dctcp.c
tcp: allow dctcp alpha to drop to zero
2015-10-23 02:46:52 -07:00
tcp_diag.c
net: diag: Support destroying TCP sockets.
2015-12-15 23:26:52 -05:00
tcp_fastopen.c
tcp/dccp: fix hashdance race for passive sessions
2015-10-23 05:42:21 -07:00
tcp_highspeed.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_htcp.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_hybla.c
tcp: do not slow start when cwnd equals ssthresh
2015-07-09 14:22:52 -07:00
tcp_illinois.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_input.c
tcp: do not set rtt_min to 1
2016-02-16 16:07:13 -05:00
tcp_ipv4.c
tcp/dccp: fix another race at listener dismantle
2016-02-18 11:35:51 -05:00
tcp_lp.c
tcp: remove in_flight parameter from cong_avoid() methods
2014-05-03 19:23:07 -04:00
tcp_metrics.c
tcp: convert cached rtt from usec to jiffies when feeding initial rto
2016-02-23 18:28:46 -05:00
tcp_minisocks.c
tcp: honour SO_BINDTODEVICE for TW_RST case too
2015-12-22 17:03:05 -05:00
tcp_offload.c
tcp: reserve tcp_skb_mss() to tcp stack
2015-06-11 16:33:10 -07:00
tcp_output.c
net: tcp_memcontrol: simplify linkage between socket and page counter
2016-01-14 16:00:49 -08:00
tcp_probe.c
tcp: whitespace fixes
2014-09-01 18:12:45 -07:00
tcp_recovery.c
tcp: use RACK to detect losses
2015-10-21 07:00:53 -07:00
tcp_scalable.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_timer.c
ipv4: Namespecify the tcp_keepalive_intvl sysctl knob
2016-01-10 17:32:09 -05:00
tcp_vegas.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_vegas.h
tcp: prepare CC get_info() access from getsockopt()
2015-04-29 17:10:38 -04:00
tcp_veno.c
tcp: add tcp_in_slow_start helper
2015-07-09 14:22:52 -07:00
tcp_westwood.c
tcp_westwood: fix tcp_westwood_info()
2015-05-05 19:50:09 -04:00
tcp_yeah.c
tcp_yeah: don't set ssthresh below 2
2016-01-11 17:25:16 -05:00
tcp.c
tcp: correctly crypto_alloc_hash return check
2016-02-17 22:23:04 -05:00
tunnel4.c
…
udp_diag.c
soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF
2016-01-04 22:49:59 -05:00
udp_impl.h
net: Remove iocb argument from sendmsg and recvmsg
2015-03-02 13:06:31 -05:00
udp_offload.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-01-11 23:55:43 -05:00
udp_tunnel.c
tunnel: Clear IPCB(skb)->opt before dst_link_failure called
2016-02-23 19:11:56 -05:00
udp.c
ipv4: fix memory leaks in ip_cmsg_send() callers
2016-02-13 05:57:39 -05:00
udplite.c
net: Eliminate no_check from protosw
2014-05-23 16:28:53 -04:00
xfrm4_input.c
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c
…
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
ipv4: hash net ptr into fragmentation bucket selection
2015-03-25 14:07:04 -04:00
xfrm4_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-24 06:54:12 -07:00
xfrm4_policy.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
2015-12-22 16:26:31 -05:00
xfrm4_protocol.c
xfrm4: Remove duplicate semicolon
2014-06-30 07:49:47 +02:00
xfrm4_state.c
…
xfrm4_tunnel.c
…