From: David Miller <davem@davemloft.net>
To: cascardo@redhat.com
Cc: yoshfuji@linux-ipv6.org, netdev@vger.kernel.org,
bridge@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Rik.Theys@esat.kuleuven.be
Subject: Re: [Bridge] [PATCH] bridge: fix parsing of MLDv2 reports
Date: Fri, 22 May 2015 15:09:03 -0400 (EDT) [thread overview]
Message-ID: <20150522.150903.570785706419447424.davem@davemloft.net> (raw)
In-Reply-To: <1432307939-19640-1-git-send-email-cascardo@redhat.com>
From: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Date: Fri, 22 May 2015 12:18:59 -0300
> When more than a multicast address is present in a MLDv2 report, all but
> the first address is ignored, because the code breaks out of the loop if
> there has not been an error adding that address.
>
> This has caused failures when two guests connected through the bridge
> tried to communicate using IPv6. Neighbor discoveries would not be
> transmitted to the other guest when both used a link-local address and a
> static address.
>
> This only happens when there is a MLDv2 querier in the network.
>
> The fix will only break out of the loop when there is a failure adding a
> multicast address.
...
> Reported-by: Rik Theys <Rik.Theys@esat.kuleuven.be>
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
> Tested-by: Rik Theys <Rik.Theys@esat.kuleuven.be>
Applied and queued up for -stable, thanks.
prev parent reply other threads:[~2015-05-22 19:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 15:18 [Bridge] [PATCH] bridge: fix parsing of MLDv2 reports Thadeu Lima de Souza Cascardo
2015-05-22 16:37 ` Cong Wang
2015-05-22 19:09 ` David Miller [this message]
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