[ovs-discuss] icmpv6 checksum bug

Jesse Gross jesse at nicira.com
Mon Nov 10 01:40:49 UTC 2014


On Thu, Nov 6, 2014 at 7:03 PM, 林冬艺 <lindongyi at bingosoft.net> wrote:
>     Hello!
>         I am a software engineer Bingsoft. I found a serious bug on the
> openvswitch datapath.
>
>        If I modify icmpv6 packet's source address flowtables, will lead
> icmpv6 checksum error.
>
>         According to RFC standards, icmpv6 the checksum need to join the
> ipv6 address operation. And I found that you modify the source code inside
> the ipv6 address in the future, and did not re-calculation icmpv6 the
> checksum.
>
>     Here is what I modify the source code patches.

I don't really understand this patch because it looks like you are
deleting code that I'm not sure exists (diff in wrong order?).
However, I think the problem has already been fixed if you pull either
the master branch or branch-2.3 from git.



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