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linux/net
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Eric Dumazet e8ef7efffb tcp: gso: fix truesize tracking 
[ Upstream commit 0d08c42cf9 ]

commit 6ff50cd555 ("tcp: gso: do not generate out of order packets")
had an heuristic that can trigger a warning in skb_try_coalesce(),
because skb->truesize of the gso segments were exactly set to mss.

This breaks the requirement that

skb->truesize >= skb->len + truesizeof(struct sk_buff);

It can trivially be reproduced by :

ifconfig lo mtu 1500
ethtool -K lo tso off
netperf

As the skbs are looped into the TCP networking stack, skb_try_coalesce()
warns us of these skb under-estimating their truesize.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08 07:29:27 -08:00
..
9p 9p: send uevent after adding/removing mount_tag attribute 2013-12-04 10:57:19 -08:00
802 net/802/mrp: fix lockdep splat 2013-05-14 13:02:30 -07:00
8021q net: vlan: fix nlmsg size calculation in vlan_get_size() 2013-11-04 04:31:02 -08:00
appletalk net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
atm net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
ax25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
batman-adv batman-adv: set up network coding packet handlers during module init 2013-11-20 12:27:47 -08:00
bluetooth net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
bridge bridge: flush br's address entry in fdb when remove the bridge dev 2013-12-08 07:29:26 -08:00
caif net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
can Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
ceph libceph: use pg_num_mask instead of pgp_num_mask for pg.seed calc 2013-09-26 17:18:29 -07:00
core {pktgen, xfrm} Update IPv4 header total len and checksum after tranformation 2013-12-08 07:29:26 -08:00
dcb
dccp net:dccp: do not report ICMP redirects to user space 2013-10-13 16:08:30 -07:00
decnet
dns_resolver
dsa
ethernet
ieee802154 inet: prevent leakage of uninitialized memory to user in recv syscalls 2013-12-08 07:29:25 -08:00
ipv4 tcp: gso: fix truesize tracking 2013-12-08 07:29:27 -08:00
ipv6 ipv6: fix possible seqlock deadlock in ip6_finish_output2 2013-12-08 07:29:26 -08:00
ipx net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
irda net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
iucv net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
key net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
l2tp inet: fix addr_len/msg->msg_namelen assignment in recv_error and rxpmtu functions 2013-12-08 07:29:25 -08:00
lapb
llc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
mac80211 mac80211: fix crash if bitrate calculation goes wrong 2013-11-13 12:05:30 +09:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
netfilter netfilter: push reasm skb through instead of original frag skbs 2013-12-08 07:29:25 -08:00
netlabel netlabel: improve domain mapping validation 2013-05-19 14:49:55 -07:00
netlink net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
netrom net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
nfc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
openvswitch openvswitch: Remove unneeded ovs_netdev_get_ifindex() 2013-04-30 00:19:11 -04:00
packet af_packet: block BH in prb_shutdown_retire_blk_timer() 2013-12-08 07:29:26 -08:00
phonet inet: prevent leakage of uninitialized memory to user in recv syscalls 2013-12-08 07:29:25 -08:00
rds net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
rfkill Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-04-22 14:58:14 -04:00
rose net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
rxrpc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
sched net_sched: htb: fix a typo in htb_change_class() 2013-10-13 16:08:29 -07:00
sctp sctp: Perform software checksum if packet has to be fragmented. 2013-11-04 04:31:04 -08:00
sunrpc SUNRPC: Fix a data corruption issue when retransmitting RPC calls 2013-11-29 11:11:52 -08:00
tipc net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
unix net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
vmw_vsock net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
wimax
wireless cfg80211: fix scheduled scan pointer access 2013-12-04 10:57:30 -08:00
x25 net: rework recvmsg handler msg_name and msg_namelen logic 2013-12-08 07:29:25 -08:00
xfrm xfrm: force a garbage collection after deleting a policy 2013-05-31 17:30:07 -07:00
compat.c net: clamp ->msg_namelen instead of returning an error 2013-12-08 07:29:25 -08:00
Kconfig netlink: kconfig: move mmap i/o into netlink kconfig 2013-05-01 15:02:42 -04:00
Makefile
nonet.c
socket.c net: clamp ->msg_namelen instead of returning an error 2013-12-08 07:29:25 -08:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-13 16:08:34 -07:00