Merge branch 'vxlan-geneve-linear'

Stefano Brivio says:

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Don't assume linear buffers in error handlers for VXLAN and GENEVE

Guillaume noticed the same issue fixed by commit 26fc181e6cac ("fou, fou6:
do not assume linear skbs") for fou and fou6 is also present in VXLAN and
GENEVE error handlers: we can't assume linear buffers there, we need to
use pskb_may_pull() instead.
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Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>