4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
[ Upstream commit b8b549eec8187ac1b12075d69a2d84d89b5e811a ]
When IPsec offloading was introduced, we accidentally incremented
the sequence number counter on the xfrm_state by one packet
too much in the ESN case. This leads to a sequence number gap of
one packet after each GSO packet. Fix this by setting the sequence
number to the correct value.
Fixes: d7dbefc45cf5 ("xfrm: Add xfrm_replay_overflow functions for offloading")
Signed-off-by: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/xfrm/xfrm_replay.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -658,7 +658,7 @@ static int xfrm_replay_overflow_offload_
} else {
XFRM_SKB_CB(skb)->seq.output.low = oseq + 1;
XFRM_SKB_CB(skb)->seq.output.hi = oseq_hi;
- xo->seq.low = oseq = oseq + 1;
+ xo->seq.low = oseq + 1;
xo->seq.hi = oseq_hi;
oseq += skb_shinfo(skb)->gso_segs;
}
