]> git.baikalelectronics.ru Git - kernel.git/commit
net: preserve IP control block during GSO segmentation
authorKonstantin Khlebnikov <koct9i@gmail.com>
Fri, 8 Jan 2016 12:21:46 +0000 (15:21 +0300)
committerDavid S. Miller <davem@davemloft.net>
Fri, 15 Jan 2016 19:35:24 +0000 (14:35 -0500)
commit9191179197ccce95df6837e5d4f1f766c6ca8fd5
tree9053fd455c6a19176174674e898ee05c37724827
parent5b1530c76752174aa4399777e1e35a86994b3f5b
net: preserve IP control block during GSO segmentation

Skb_gso_segment() uses skb control block during segmentation.
This patch adds 32-bytes room for previous control block which
will be copied into all resulting segments.

This patch fixes kernel crash during fragmenting forwarded packets.
Fragmentation requires valid IP CB in skb for clearing ip options.
Also patch removes custom save/restore in ovs code, now it's redundant.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Link: http://lkml.kernel.org/r/CALYGNiP-0MZ-FExV2HutTvE9U-QQtkKSoE--KN=JQE5STYsjAA@mail.gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/skbuff.h
net/core/dev.c
net/ipv4/ip_output.c
net/openvswitch/datapath.c
net/xfrm/xfrm_output.c