Re: [PATCH] ipv6/exthdrs: strict Pad1 and PadN check

[David Miller]

From: Eldad Zack <eldad@xxxxxxxxxxxxxxx>
Date: Sun, 20 May 2012 13:59:33 +0200

> The following tightens the padding check from commit
> c1412fce7eccae62b4de22494f6ab3ff8a90c0c6 :
> 
> * Take into account combinations of consecutive Pad1 and PadN.
> 
> * Catch the corner case of when only padding is present in the
>   header, when the extention header length is 0 (i.e., 8 bytes).
>   In this case, the header would have exactly 6 bytes of padding:
> 
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> :  Next Header  : Hdr Ext Len=0 :                               :
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+                               +
> :                        Padding (Pad1 or PadN)                 :
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> 
> Signed-off-by: Eldad Zack <eldad@xxxxxxxxxxxxxxx>

Applied to net-next, thanks a lot.
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