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| author | Ying Cai <ycai@google.com> | 2014-05-05 00:20:04 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-05 22:32:17 +0200 |
| commit | e96f2e7c430014eff52c93cabef1ad4f42ed0db1 (patch) | |
| tree | 225d4491ce2e7bac9282a3ea9453313e2b14a61d /mm/backing-dev.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsh... (diff) | |
| download | linux-e96f2e7c430014eff52c93cabef1ad4f42ed0db1.tar.xz linux-e96f2e7c430014eff52c93cabef1ad4f42ed0db1.zip | |
ip_tunnel: Set network header properly for IP_ECN_decapsulate()
In ip_tunnel_rcv(), set skb->network_header to inner IP header
before IP_ECN_decapsulate().
Without the fix, IP_ECN_decapsulate() takes outer IP header as
inner IP header, possibly causing error messages or packet drops.
Note that this skb_reset_network_header() call was in this spot when
the original feature for checking consistency of ECN bits through
tunnels was added in eccc1bb8d4b4 ("tunnel: drop packet if ECN present
with not-ECT"). It was only removed from this spot in 3d7b46cd20e3
("ip_tunnel: push generic protocol handling to ip_tunnel module.").
Fixes: 3d7b46cd20e3 ("ip_tunnel: push generic protocol handling to ip_tunnel module.")
Reported-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Ying Cai <ycai@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/backing-dev.c')
0 files changed, 0 insertions, 0 deletions