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xfrm: Reset encapsulation field of the skb before transformation

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The inner headers are invalid after a xfrm transformation.
So reset the skb encapsulation field to ensure nobody tries
to access the inner headers.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2016-02-22 10:56:45 +01:00
parent 6ad3122a08
commit 215276c014
1 changed files with 3 additions and 0 deletions
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3
net/xfrm/xfrm_output.c
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@ -99,6 +99,9 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
skb_dst_force(skb);
/* Inner headers are invalid now. */
skb->encapsulation = 0;
err = x->type->output(x, skb);
if (err == -EINPROGRESS)
goto out;