From: Vadim Fedorenko <j...@yandex-team.ru>
Date: Tue, 11 Oct 2016 22:47:20 +0300
> The commit ea3dc9601bda ("ip6_tunnel: Add support for wildcard tunnel
> endpoints.") introduces support for wildcards in tunnels endpoints,
> but in some rare circumstances ip6_tnl_lookup selects wrong tunnel
> interface relying only on source or destination address of the packet
> and not checking presence of wildcard in tunnels endpoints. Later in
> ip6_tnl_rcv this packets can be dicarded because of difference in
> ipproto even if fallback device have proper ipproto configuration.
> This patch adds checks of wildcard endpoint in tunnel avoiding such
> Fixes: ea3dc9601bda ("ip6_tunnel: Add support for wildcard tunnel
> Signed-off-by: Vadim Fedorenko <j...@yandex-team.ru>
Applied and queued up for -stable.