Hi, > Entries with long vhost names in /proc/net/igmp have no whitespace > between name and colon, so sscanf() adds it to vhost and > 'ip maddr show iface' doesn't include inet result.
Bug was also reported to bugzilla (https://bugzilla.kernel.org/show_bug.cgi?id=192741), with updated comment in the patch. Kind regards, Petr