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| author | Yossef Efraim <yossefe@mellanox.com> | 2017-11-28 11:49:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-19 08:42:50 +0100 |
| commit | ab3db1af421005b9a33888ebe2b69cce81179b91 (patch) | |
| tree | 572845932c0a42e75880f5c14389e4278531fed5 /net/xfrm | |
| parent | 5aac93adff9caa5920af52ea1db2a5dc2c1badd9 (diff) | |
| download | linux-stable-ab3db1af421005b9a33888ebe2b69cce81179b91.tar.gz linux-stable-ab3db1af421005b9a33888ebe2b69cce81179b91.tar.bz2 linux-stable-ab3db1af421005b9a33888ebe2b69cce81179b91.zip | |
xfrm: Fix xfrm_replay_overflow_offload_esn
[ Upstream commit 0ba23a211360af7b6658e4fcfc571970bbbacc55 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/xfrm_replay.c | 3 |
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); |