From: Linus Lüssing <[email protected]> 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 <[email protected]> Applied.
