| To: | yoshfuji@xxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: [PATCH] IPv6: Don't Process ND Messages with Invalid Options |
| From: | "David S. Miller" <davem@xxxxxxxxxx> |
| Date: | Thu, 26 Sep 2002 14:31:31 -0700 (PDT) |
| Cc: | netdev@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, usagi@xxxxxxxxxxxxxx |
| In-reply-to: | <20020925.133031.538200492.yoshfuji@linux-ipv6.org> |
| References: | <20020925.133031.538200492.yoshfuji@linux-ipv6.org> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx>
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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