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Date: Tue, 11 Mar 2014 23:23:31 -0400 (EDT) From: David Miller <davem@...emloft.net> To: linus.luessing@....de Cc: netdev@...r.kernel.org, bridge@...ts.linux-foundation.org, stephen@...workplumber.org, linux-kernel@...r.kernel.org, jstancek@...hat.com, fwestpha@...hat.com Subject: Re: [PATCHv2 2/2] bridge: multicast: enable snooping on general queries only From: Linus Lüssing <linus.luessing@....de> Date: Mon, 10 Mar 2014 22:25:25 +0100 > Without this check someone could easily create a denial of service > by injecting multicast-specific queries to enable the bridge > snooping part if no real querier issuing periodic general queries > is present on the link which would result in the bridge wrongly > shutting down ports for multicast traffic as the bridge did not learn > about these listeners. > > With this patch the snooping code is enabled upon receiving valid, > general queries only. > > Signed-off-by: Linus Lüssing <linus.luessing@....de> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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