Revision b7f8fe251e4609e2a437bd2c2dea01e61db6849c authored by Jiri Benc on 29 April 2016, 21:31:32 UTC, committed by David S. Miller on 02 May 2016, 04:19:58 UTC
iptunnel_pull_header expects that IP header was already pulled; with this expectation, it pulls the tunnel header. This is not true in gre_err. Furthermore, ipv4_update_pmtu and ipv4_redirect expect that skb->data points to the IP header. We cannot pull the tunnel header in this path. It's just a matter of not calling iptunnel_pull_header - we don't need any of its effects. Fixes: bda7bb463436 ("gre: Allow multiple protocol listener for gre protocol.") Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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