From c737a52c8742f427b439d71dfb4ce4e4a2ffc5e6 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Sat, 29 Nov 2014 09:59:45 -0800 Subject: gre: Set inner mac header in gro complete [ Upstream commit 6fb2a756739aa507c1fd5b8126f0bfc2f070dc46 ] Set the inner mac header to point to the GRE payload when doing GRO. This is needed if we proceed to send the packet through GRE GSO which now uses the inner mac header instead of inner network header to determine the length of encapsulation headers. Fixes: 14051f0452a2 ("gre: Use inner mac length when computing tunnel length") Reported-by: Wolfgang Walter Signed-off-by: Tom Herbert Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv4/gre_offload.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/ipv4') diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c index 8c8493ea6b1c..278836f1a5ad 100644 --- a/net/ipv4/gre_offload.c +++ b/net/ipv4/gre_offload.c @@ -271,6 +271,9 @@ static int gre_gro_complete(struct sk_buff *skb, int nhoff) err = ptype->callbacks.gro_complete(skb, nhoff + grehlen); rcu_read_unlock(); + + skb_set_inner_mac_header(skb, nhoff + grehlen); + return err; } -- cgit v1.2.3