Re: [PATCH] IPv6: Don't Process ND Messages with Invalid Options

From: David S. Miller (davem@redhat.com)
Date: Thu Sep 26 2002 - 16:31:31 EST

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In reply to: $B5HF#1QL@(: "[PATCH] IPv6: Don't Process ND Messages with Invalid Options"
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From: YOSHIFUJI Hideaki / $B5HF#1QL@(B <yoshfuji@linux-ipv6.org>
Date: Wed, 25 Sep 2002 13:30:31 +0900 (JST)

   Linux happened to process invalid ND messages with invalid options
   such as
    - length of ND options is 0
    - length of ND options is not enough
   Specification says that such messages must be silently discarded.
   This patch parses/checks ND options before it changes state of
   neighbour / address etc. and ignores such messages.

   Following patch is against linux-2.4.19.

Patch applied to 2.4.x and 2.5.x, thanks a lot.

Let us hope more patches like this one are coming :-)
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