Willem de Bruijn 85f1bd9a7b udp: consistently apply ufo or fragmentation ...

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>

2017-08-10 09:52:12 -07:00

..

ila

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

2017-06-15 11:59:32 -04:00

netfilter

Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

2017-06-30 06:27:09 -07:00

addrconf_core.c

Ipvlan should return an error when an address is already in use.

2017-06-09 12:26:07 -04:00

addrconf.c

net, ipv6: convert inet6_ifaddr.refcnt from atomic_t to refcount_t

2017-07-04 01:29:04 -07:00

addrlabel.c

net, ipv6: convert ip6addrlbl_entry.refcnt from atomic_t to refcount_t

2017-07-04 01:29:04 -07:00

af_inet6.c

…

ah6.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

2017-06-23 14:17:31 -04:00

anycast.c

net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_t

2017-07-04 01:29:04 -07:00

calipso.c

net, calipso: convert calipso_doi.refcount from atomic_t to refcount_t

2017-07-04 22:35:16 +01:00

datagram.c

net: convert sock.sk_refcnt from atomic_t to refcount_t

2017-07-01 07:39:08 -07:00

esp6_offload.c

esp6_offload: Fix IP6CB(skb)->nhoff for ESP GRO

2017-06-22 10:49:14 +02:00

esp6.c

net: convert sock.sk_wmem_alloc from atomic_t to refcount_t

2017-07-01 07:39:08 -07:00

exthdrs_core.c

…

exthdrs_offload.c

…

exthdrs.c

udp6: fix jumbogram reception

2017-07-31 22:01:21 -07:00

fib6_rules.c

ipv6: Do not leak throw route references

2017-06-20 15:34:02 -04:00

fou6.c

…

icmp.c

net: don't global ICMP rate limit packets originating from loopback

2017-06-14 15:33:58 -04:00

inet6_connection_sock.c

…

inet6_hashtables.c

net: convert sock.sk_refcnt from atomic_t to refcount_t

2017-07-01 07:39:08 -07:00

ip6_checksum.c

…

ip6_fib.c

net: ipv6: Compare lwstate in detecting duplicate nexthops

2017-07-06 10:48:01 +01:00

ip6_flowlabel.c

…

ip6_gre.c

net: add netlink_ext_ack argument to rtnl_link_ops.validate

2017-06-26 23:13:22 -04:00

ip6_icmp.c

…

ip6_input.c

…

ip6_offload.c

…

ip6_offload.h

…

ip6_output.c

udp: consistently apply ufo or fragmentation

2017-08-10 09:52:12 -07:00

ip6_tunnel.c

net: add netlink_ext_ack argument to rtnl_link_ops.validate

2017-06-26 23:13:22 -04:00

ip6_udp_tunnel.c

…

ip6_vti.c

net: add netlink_ext_ack argument to rtnl_link_ops.validate

2017-06-26 23:13:22 -04:00

ip6mr.c

ip6mr: add netlink notifications on mrt6msg cache reports

2017-06-21 11:22:53 -04:00

ipcomp6.c

…

ipv6_sockglue.c

Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-07-05 16:05:24 -07:00

Kconfig

…

Makefile

…

mcast_snoop.c

…

mcast.c

net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_t

2017-07-04 01:29:04 -07:00

mip6.c

…

ndisc.c

networking: make skb_put & friends return void pointers

2017-06-16 11:48:39 -04:00

netfilter.c

…

output_core.c

ipv6: avoid overflow of offset in ip6_find_1stfragopt

2017-07-19 22:50:14 -07:00

ping.c

…

proc.c

proc: snmp6: Use correct type in memset

2017-06-12 09:53:14 -04:00

protocol.c

…

raw.c

…

reassembly.c

…

route.c

ipv6: set rt6i_protocol properly in the route when it is installed

2017-08-03 15:10:18 -07:00

seg6_hmac.c

…

seg6_iptunnel.c

…

seg6.c

…

sit.c

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

2017-06-30 12:43:08 -04:00

syncookies.c

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

2017-07-18 11:22:51 -07:00

sysctl_net_ipv6.c

…

tcp_ipv6.c

net: convert sock.sk_refcnt from atomic_t to refcount_t

2017-07-01 07:39:08 -07:00

tcpv6_offload.c

…

tunnel6.c

…

udp_impl.h

…

udp_offload.c

net: avoid skb_warn_bad_offload false positives on UFO

2017-08-08 21:39:01 -07:00

udp.c

udp6: fix jumbogram reception

2017-07-31 22:01:21 -07:00

udplite.c

…

xfrm6_input.c

xfrm6: Fix IPv6 payload_len in xfrm6_transport_finish

2017-06-22 10:49:14 +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

…

xfrm6_mode_transport.c

…

xfrm6_mode_tunnel.c

…

xfrm6_output.c

…

xfrm6_policy.c

…

xfrm6_protocol.c

…

xfrm6_state.c

…

xfrm6_tunnel.c

net, ipv6: convert xfrm6_tunnel_spi.refcnt from atomic_t to refcount_t

2017-07-04 01:29:04 -07:00