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authorYossef Efraim <yossefe@mellanox.com>2017-11-28 12:49:28 +0300
committerSteffen Klassert <steffen.klassert@secunet.com>2017-12-01 09:10:01 +0300
commit0ba23a211360af7b6658e4fcfc571970bbbacc55 (patch)
tree573a6e06940a401290f8eec7814f76525d5b53ab /net/xfrm
parent5c0bb261d26189e1d7ece001b0accc7e14e6b20c (diff)
downloadlinux-0ba23a211360af7b6658e4fcfc571970bbbacc55.tar.xz
xfrm: Fix xfrm_replay_overflow_offload_esn
In case of wrap around, replay_esn->oseq_hi is not updated before it is tested for it's actual value, leading function to fail with overflow indication and packets being dropped. This patch updates replay_esn->oseq_hi in the right place. Fixes: d7dbefc45cf5 ("xfrm: Add xfrm_replay_overflow functions for offloading") Signed-off-by: Yossef Efraim <yossefe@mellanox.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_replay.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index 8b23c5bcf8e8..02501817227b 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -666,7 +666,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
if (unlikely(oseq < replay_esn->oseq)) {
XFRM_SKB_CB(skb)->seq.output.hi = ++oseq_hi;
xo->seq.hi = oseq_hi;
-
+ replay_esn->oseq_hi = oseq_hi;
if (replay_esn->oseq_hi == 0) {
replay_esn->oseq--;
replay_esn->oseq_hi--;
@@ -678,7 +678,6 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
}
replay_esn->oseq = oseq;
- replay_esn->oseq_hi = oseq_hi;
if (xfrm_aevent_is_on(net))
x->repl->notify(x, XFRM_REPLAY_UPDATE);