Willem de Bruijn 33dc6a6a85 udp: consistently apply ufo or fragmentation ...

[ Upstream commit 85f1bd9a7b ]

When iteratively building a UDP datagram with MSG_MORE and that
datagram exceeds MTU, consistently choose UFO or fragmentation.

Once skb_is_gso, always apply ufo. Conversely, once a datagram is
split across multiple skbs, do not consider ufo.

Sendpage already maintains the first invariant, only add the second.
IPv6 does not have a sendpage implementation to modify.

A gso skb must have a partial checksum, do not follow sk_no_check_tx
in udp_send_skb.

Found by syzkaller.

Fixes: e89e9cf539 ("[IPv4/IPv6]: UFO Scatter-gather approach")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-08-12 19:31:22 -07:00

..

netfilter

netfilter: use fwmark_reflect in nf_send_reset

2017-08-11 08:49:35 -07:00

af_inet.c

igmp: Fix regression caused by igmp sysctl namespace code.

2017-08-12 19:31:22 -07:00

ah4.c

…

arp.c

NET: Fix /proc/net/arp for AX.25

2017-06-17 06:41:50 +02:00

cipso_ipv4.c

netlabel: out of bound access in cipso_v4_validate()

2017-02-18 15:11:41 +01:00

datagram.c

…

devinet.c

…

esp4.c

esp4: Fix integrity verification when ESN are used

2016-11-30 11:09:39 +01:00

fib_frontend.c

ipv4: initialize fib_trie prior to register_netdev_notifier call.

2017-08-11 08:49:32 -07:00

fib_lookup.h

…

fib_rules.c

switchdev: remove FIB offload infrastructure

2016-09-28 04:48:00 -04:00

fib_semantics.c

ipv4: add reference counting to metrics

2017-06-07 12:07:46 +02:00

fib_trie.c

net: Improve handling of failures on link and route dumps

2017-06-07 12:07:44 +02:00

fou.c

net: add recursion limit to GRO

2016-10-20 14:32:22 -04:00

gre_demux.c

…

gre_offload.c

net: add recursion limit to GRO

2016-10-20 14:32:22 -04:00

icmp.c

net: icmp_route_lookup should use rt dev to determine L3 domain

2016-11-09 18:49:39 -05:00

igmp.c

igmp: Fix regression caused by igmp sysctl namespace code.

2017-08-12 19:31:22 -07:00

inet_connection_sock.c

dccp/tcp: do not inherit mc_list from parent

2017-06-07 12:07:42 +02:00

inet_diag.c

…

inet_fragment.c

…

inet_hashtables.c

net: Require exact match for TCP socket lookups if dif is l3mdev

2016-10-17 10:17:05 -04:00

inet_timewait_sock.c

…

inetpeer.c

…

ip_forward.c

ipv4: allow local fragmentation in ip_finish_output_gso()

2016-11-03 16:10:26 -04:00

ip_fragment.c

…

ip_gre.c

net/ip_tunnels: Introduce tunnel_id_to_key32() and key32_to_tunnel_id()

2016-09-10 20:53:55 -07:00

ip_input.c

net: VRF: Pass original iif to ip_route_input()

2016-09-16 04:24:07 -04:00

ip_options.c

…

ip_output.c

udp: consistently apply ufo or fragmentation

2017-08-12 19:31:22 -07:00

ip_sockglue.c

net-timestamp: avoid use-after-free in ip_recv_error

2017-05-03 08:36:36 -07:00

ip_tunnel_core.c

net: Specify the owning module for lwtunnel ops

2017-02-04 09:47:11 +01:00

ip_tunnel.c

ip_tunnel: add collect_md mode to IPIP tunnel

2016-09-17 10:13:07 -04:00

ip_vti.c

…

ipcomp.c

…

ipconfig.c

…

ipip.c

ip_tunnel: add collect_md mode to IPIP tunnel

2016-09-17 10:13:07 -04:00

ipmr.c

ipv4: allow local fragmentation in ip_finish_output_gso()

2016-11-03 16:10:26 -04:00

Kconfig

tcp: Set DEFAULT_TCP_CONG to bbr if DEFAULT_BBR is set

2016-11-28 12:15:00 -05:00

Makefile

tcp_bbr: add BBR congestion control

2016-09-21 00:23:01 -04:00

netfilter.c

netfilter: use skb_to_full_sk in ip_route_me_harder

2017-07-05 14:40:28 +02:00

ping.c

ping: implement proper locking

2017-05-03 08:36:34 -07:00

proc.c

net: Suppress the "Comparison to NULL could be written" warnings

2016-09-30 01:50:45 -04:00

protocol.c

…

raw.c

ipv4, ipv6: ensure raw socket message is big enough to hold an IP header

2017-05-14 14:00:21 +02:00

route.c

ipv4: add reference counting to metrics

2017-06-07 12:07:46 +02:00

syncookies.c

ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check()

2017-08-11 08:49:32 -07:00

sysctl_net_ipv4.c

ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int

2017-08-11 08:49:35 -07:00

tcp_bbr.c

tcp_bbr: init pacing rate on first RTT sample

2017-08-11 08:49:32 -07:00

tcp_bic.c

…

tcp_cdg.c

tcp: cdg: rename struct minmax in tcp_cdg.c to avoid a naming conflict

2016-09-21 00:22:59 -04:00

tcp_cong.c

tcp: disallow cwnd undo when switching congestion control

2017-06-14 15:05:52 +02:00

tcp_cubic.c

…

tcp_dctcp.c

dctcp: avoid bogus doubling of cwnd after loss

2016-10-31 15:16:28 -04:00

tcp_diag.c

…

tcp_fastopen.c

tcp: initialize max window for a new fastopen socket

2017-02-04 09:47:10 +01:00

tcp_highspeed.c

…

tcp_htcp.c

…

tcp_hybla.c

…

tcp_illinois.c

…

tcp_input.c

tcp: avoid setting cwnd to invalid ssthresh after cwnd reduction states

2017-08-12 19:31:21 -07:00

tcp_ipv4.c

dccp/tcp: fix routing redirect race

2017-03-22 12:43:34 +01:00

tcp_lp.c

tcp: fix wraparound issue in tcp_lp

2017-05-14 14:00:21 +02:00

tcp_metrics.c

…

tcp_minisocks.c

tcp: do not inherit fastopen_req from parent

2017-05-14 14:00:21 +02:00

tcp_nv.c

…

tcp_offload.c

gso: Support partial splitting at the frag_list pointer

2016-09-19 20:59:34 -04:00

tcp_output.c

tcp: fastopen: tcp_connect() must refresh the route

2017-08-12 19:31:22 -07:00

tcp_probe.c

tcp: tcp_probe: use spin_lock_bh()

2017-06-17 06:41:49 +02:00

tcp_rate.c

tcp: export data delivery rate

2016-09-21 00:23:00 -04:00

tcp_recovery.c

…

tcp_scalable.c

…

tcp_timer.c

net: fix keepalive code vs TCP_FASTOPEN_CONNECT

2017-08-12 19:31:21 -07:00

tcp_vegas.c

…

tcp_vegas.h

…

tcp_veno.c

…

tcp_westwood.c

…

tcp_yeah.c

…

tcp.c

tcp: reset sk_rx_dst in tcp_disconnect()

2017-07-21 07:42:17 +02:00

tunnel4.c

…

udp_diag.c

…

udp_impl.h

udplite: call proper backlog handlers

2016-11-24 15:32:14 -05:00

udp_offload.c

net: avoid skb_warn_bad_offload false positives on UFO

2017-08-12 19:31:22 -07:00

udp_tunnel.c

…

udp.c

udp: consistently apply ufo or fragmentation

2017-08-12 19:31:22 -07:00

udplite.c

udplite: call proper backlog handlers

2016-11-24 15:32:14 -05:00

xfrm4_input.c

…

xfrm4_mode_beet.c

…

xfrm4_mode_transport.c

…

xfrm4_mode_tunnel.c

…

xfrm4_output.c

…

xfrm4_policy.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-09-12 15:52:44 -07:00

xfrm4_protocol.c

…

xfrm4_state.c

…

xfrm4_tunnel.c

…