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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 d749c9cbffd6 ("ipv4: no CHECKSUM_PARTIAL on MSG_MORE corked
sockets") started to exposes this bug.

Fixes: d749c9cbffd6 ("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
..
6lowpan
6lowpan: fix debugfs interface entry name
2015-12-20 08:21:00 +01:00
9p
Rework and error handling fixes, primarily in the fscatch and fd transports.
2016-01-24 12:39:09 -08:00
802
…
8021q
net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK
2015-12-15 16:50:08 -05:00
appletalk
appletalk: fix erroneous return value
2016-02-18 14:59:34 -05:00
atm
net: Generalise wq_has_sleeper helper
2015-11-30 14:47:33 -05:00
ax25
net: add validation for the socket syscall protocol argument
2015-12-14 16:09:30 -05:00
batman-adv
batman-adv: Avoid endless loop in bat-on-bat netdevice check
2016-02-16 22:16:33 +08:00
bluetooth
Bluetooth: hci_core: Avoid mixing up req_complete and req_complete_skb
2016-02-20 08:52:28 +01:00
bridge
bridge: mdb: avoid uninitialized variable warning
2016-02-16 15:37:28 -05:00
caif
net: caif: fix erroneous return value
2016-02-18 14:59:35 -05:00
can
can: avoid using timeval for uapi
2015-10-13 17:42:34 +02:00
ceph
libceph: MOSDOpReply v7 encoding
2016-02-04 18:26:08 +01:00
core
net: make netdev_for_each_lower_dev safe for device removal
2016-02-19 15:29:26 -05:00
dcb
net/dcb: make dcbnl.c explicitly non-modular
2015-10-09 07:52:27 -07:00
dccp
tcp/dccp: fix another race at listener dismantle
2016-02-18 11:35:51 -05:00
decnet
net: add validation for the socket syscall protocol argument
2015-12-14 16:09:30 -05:00
dns_resolver
net: dns_resolver: convert time_t to time64_t
2015-11-18 16:27:46 -05:00
dsa
net: dsa: Unregister slave_dev in error path
2016-02-17 22:05:16 -05:00
ethernet
net: Add eth_platform_get_mac_address() helper.
2016-01-06 16:31:56 -05:00
hsr
net/hsr: fix a warning message
2015-11-23 14:56:15 -05:00
ieee802154
inet: kill unused skb_free op
2016-01-05 22:25:57 -05:00
ipv4
ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL
2016-02-24 14:11:34 -05:00
ipv6
tunnel: Clear IPCB(skb)->opt before dst_link_failure called
2016-02-23 19:11:56 -05:00
ipx
…
irda
irda: fix a potential use-after-free in ircomm_param_request
2016-01-29 22:56:46 -08:00
iucv
af_iucv: Validate socket address length in iucv_sock_bind()
2016-01-19 14:21:08 -05:00
key
af_key: fix two typos
2015-10-23 03:05:19 -07:00
l2tp
l2tp: Fix error creating L2TP tunnels
2016-02-17 15:34:47 -05:00
l3mdev
net: Add netif_is_l3_slave
2015-10-07 04:27:43 -07:00
lapb
…
llc
…
mac80211
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-02-01 15:56:08 -08:00
mac802154
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
mpls
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-12-17 22:08:28 -05:00
netfilter
netfilter: nft_counter: fix erroneous return values
2016-02-08 13:05:02 +01:00
netlabel
…
netlink
netlink: not trim skb for mmaped socket when dump
2016-01-29 20:25:17 -08:00
netrom
…
nfc
NFC 4.5 pull request
2016-01-04 21:48:15 -05:00
openvswitch
lwt: fix rx checksum setting for lwt devices tunneling over ipv6
2016-02-19 15:39:30 -05:00
packet
packet: Allow packets with only a header (but no payload)
2015-11-29 22:17:17 -05:00
phonet
phonet: properly unshare skbs in phonet_rcv()
2016-01-12 12:05:38 -05:00
rds
Initial roundup of 4.5 merge window patches
2016-01-23 18:45:06 -08:00
rfkill
rfkill: fix rfkill_fop_read wait_event usage
2016-01-26 11:32:05 +01:00
rose
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rxrpc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2016-01-12 18:57:02 -08:00
sched
net_sched fix: reclassification needs to consider ether protocol changes
2016-02-18 11:14:19 -05:00
sctp
sctp: Fix port hash table size computation
2016-02-21 21:52:51 -05:00
sunrpc
Initial roundup of 4.5 merge window patches
2016-01-23 18:45:06 -08:00
switchdev
switchdev: Require RTNL mutex to be held when sending FDB notifications
2016-01-28 16:21:31 -08:00
tipc
tipc: unlock in error path
2016-02-19 15:38:44 -05:00
unix
af_unix: Don't use continue to re-execute unix_stream_read_generic loop
2016-02-19 23:50:31 -05:00
vmw_vsock
vsock: Fix blocking ops call in prepare_to_wait
2016-02-13 05:57:39 -05:00
wimax
net:wimax: Fix doucble word "the the" in networking.xml
2015-08-09 22:43:52 -07:00
wireless
regulatory: fix world regulatory domain data
2016-01-14 11:10:13 +01:00
x25
…
xfrm
net: preserve IP control block during GSO segmentation
2016-01-15 14:35:24 -05:00
compat.c
…
Kconfig
net, sched: add clsact qdisc
2016-01-10 22:13:15 -05:00
Makefile
net: Introduce L3 Master device abstraction
2015-09-29 20:40:32 -07:00
socket.c
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
sysctl_net.c
net: sysctl: fix a kmemleak warning
2015-10-23 06:22:08 -07:00