From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 30 Oct 2006 18:11:28 +1100

[SCTP]: Always linearise packet on input

 ...

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

I'll apply this, thanks a lot.

Sridhar, could you please organise an audit of SCTP to make sure
that it deals with skb fragments (both pages and frag_list) in a
safe manner? Basically before you do an skb_pull or access skb->data
you must ensure that the data you want to access is in the head,
usually by doing skb_may_pull.  Of course, for large payloads it
helps if you can avoid pulling it into the head.

Of course, you mean "pskb_may_pull" here.
:-)