xfrm: Fix xfrm_replay_overflow_offload_esn
[ Upstream commitpull/10/head0ba23a2113
] 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:d7dbefc45c
("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>
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5aac93adff
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ab3db1af42
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@ -666,7 +666,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
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if (unlikely(oseq < replay_esn->oseq)) {
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XFRM_SKB_CB(skb)->seq.output.hi = ++oseq_hi;
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xo->seq.hi = oseq_hi;
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replay_esn->oseq_hi = oseq_hi;
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if (replay_esn->oseq_hi == 0) {
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replay_esn->oseq--;
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replay_esn->oseq_hi--;
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@ -678,7 +678,6 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff
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}
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replay_esn->oseq = oseq;
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replay_esn->oseq_hi = oseq_hi;
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if (xfrm_aevent_is_on(net))
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x->repl->notify(x, XFRM_REPLAY_UPDATE);
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