Willem de Bruijn 938990d243 udp: consistently apply ufo or fragmentation ...

[ Upstream commit 85f1bd9a7b5a79d5baa8bf44af19658f7bf77bfa ]

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: e89e9cf539a2 ("[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 19:29:09 -07:00

..

6lowpan

6lowpan: put mcast compression in an own function

2015-10-21 00:49:25 +02:00

9p

p9_client_readdir() fix

2017-05-02 21:19:55 -07:00

802

…

8021q

vlan: Propagate MAC address to VLANs

2017-08-06 19:19:43 -07:00

appletalk

…

atm

atm: deal with setting entry before mkip was called

2015-09-17 22:13:32 -07:00

ax25

ax25: Fix segfault after sock connection timeout

2017-02-04 09:45:09 +01:00

batman-adv

batman-adv: Check for alloc errors when preparing TT local data

2016-12-15 08:49:23 -08:00

bluetooth

Bluetooth: use constant time memory comparison for secret values

2017-07-27 15:06:04 -07:00

bridge

net: bridge: start hello timer only if device is up

2017-06-14 13:16:19 +02:00

caif

net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx

2017-07-05 14:37:14 +02:00

can

can: Fix kernel panic at security_sock_rcv_skb

2017-02-18 16:39:26 +01:00

ceph

libceph: force GFP_NOIO for socket allocations

2017-04-08 09:53:30 +02:00

core

net: avoid skb_warn_bad_offload false positives on UFO

2017-08-12 19:29:08 -07:00

dcb

net/dcb: make dcbnl.c explicitly non-modular

2015-10-09 07:52:27 -07:00

dccp

dccp: fix a memleak for dccp_feat_init err process

2017-08-11 09:08:54 -07:00

decnet

decnet: always not take dst->__refcnt when inserting dst into hash table

2017-07-05 14:37:14 +02:00

dns_resolver

net: dns_resolver: convert time_t to time64_t

2015-11-18 16:27:46 -05:00

dsa

net: dsa: Check return value of phy_connect_direct()

2017-07-05 14:37:19 +02:00

ethernet

net: introduce device min_header_len

2017-02-18 16:39:27 +01:00

hsr

net/hsr: fix a warning message

2015-11-23 14:56:15 -05:00

ieee802154

net: fix percpu memory leaks

2015-11-02 22:47:14 -05:00

ipv4

udp: consistently apply ufo or fragmentation

2017-08-12 19:29:09 -07:00

ipv6

udp: consistently apply ufo or fragmentation

2017-08-12 19:29:09 -07:00

ipx

ipx: call ipxitf_put() in ioctl error path

2017-05-25 14:30:13 +02:00

irda

irda: Fix lockdep annotations in hashbin_delete().

2017-02-26 11:07:50 +01:00

iucv

af_iucv: Validate socket address length in iucv_sock_bind()

2016-03-03 15:07:03 -08:00

key

af_key: Add lock to key dump

2017-08-06 19:19:38 -07:00

l2tp

l2tp: fix PPP pseudo-wire auto-loading

2017-05-02 21:19:52 -07:00

l3mdev

net: Add netif_is_l3_slave

2015-10-07 04:27:43 -07:00

lapb

…

llc

net/llc: avoid BUG_ON() in skb_orphan()

2017-02-26 11:07:49 +01:00

mac80211

mac80211: initialize SMPS field in HT capabilities

2017-07-05 14:37:20 +02:00

mac802154

mac802154: llsec: use kzfree

2015-10-21 00:49:24 +02:00

mpls

mpls: Send route delete notifications when router module is unloaded

2017-03-22 12:04:16 +01:00

netfilter

ipvs: SNAT packet replies only for NATed connections

2017-07-27 15:06:05 -07:00

netlabel

netlabel: add address family checks to netlbl_{sock,req}_delattr()

2016-08-20 18:09:22 +02:00

netlink

netlink: Allow direct reclaim for fallback allocation

2017-05-08 07:46:02 +02:00

netrom

…

nfc

NFC: Add sockaddr length checks before accessing sa_family in bind handlers

2017-07-27 15:06:03 -07:00

openvswitch

openvswitch: fix potential out of bound access in parse_ct

2017-08-11 09:08:53 -07:00

packet

packet: fix tp_reserve race in packet_set_ring

2017-08-12 19:29:08 -07:00

phonet

phonet: properly unshare skbs in phonet_rcv()

2016-01-31 11:29:00 -08:00

rds

rds: tcp: use sock_create_lite() to create the accept socket

2017-07-21 07:44:55 +02:00

rfkill

rfkill: fix rfkill_fop_read wait_event usage

2016-03-03 15:07:26 -08:00

rose

…

rxrpc

rxrpc: Fix several cases where a padded len isn't checked in ticket decode

2017-06-29 12:48:52 +02:00

sched

net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target

2017-08-12 19:29:08 -07:00

sctp

sctp: check af before verify address in sctp_addr_id2transport

2017-07-05 14:37:21 +02:00

sunrpc

SUNRPC: fix refcounting problems with auth_gss messages.

2017-04-21 09:30:08 +02:00

switchdev

switchdev: pass pointer to fib_info instead of copy

2016-06-24 10:18:16 -07:00

tipc

tipc: ignore requests when the connection state is not CONNECTED

2017-06-17 06:39:38 +02:00

unix

af_unix: Add sockaddr length checks before accessing sa_family in bind and connect handlers

2017-07-05 14:37:13 +02:00

vmw_vsock

VSOCK: Detach QP check should filter out non matching QPs.

2017-04-27 09:09:32 +02:00

wimax

net:wimax: Fix doucble word "the the" in networking.xml

2015-08-09 22:43:52 -07:00

wireless

cfg80211: Check if PMKID attribute is of expected size

2017-07-21 07:44:56 +02:00

x25

net: fix a kernel infoleak in x25 module

2016-05-18 17:06:43 -07:00

xfrm

xfrm: Don't use sk_family for socket policy lookups

2017-08-06 19:19:46 -07:00

compat.c

…

Kconfig

net: Introduce L3 Master device abstraction

2015-09-29 20:40:32 -07:00

Makefile

net: Introduce L3 Master device abstraction

2015-09-29 20:40:32 -07:00

socket.c

net: socket: fix recvmmsg not returning error from sock_error

2017-02-26 11:07:50 +01:00

sysctl_net.c

net: Use ns_capable_noaudit() when determining net sysctl permissions

2016-09-15 08:27:50 +02:00