Commit 37fe0660 authored by Vlad Yasevich's avatar Vlad Yasevich Committed by David S. Miller
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net: fix address check in rtnl_fdb_del

Commit 6681712d

	vxlan: generalize forwarding tables

relaxed the address checks in rtnl_fdb_del() to use is_zero_ether_addr().
This allows users to add multicast addresses using the fdb API.  However,
the check in rtnl_fdb_del() still uses a more strict
is_valid_ether_addr() which rejects multicast addresses.  Thus it
is possible to add an fdb that can not be later removed.
Relax the check in rtnl_fdb_del() as well.
Signed-off-by: default avatarVlad Yasevich <>
Signed-off-by: default avatarDavid S. Miller <>
parent a11fbba9
......@@ -2192,7 +2192,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
addr = nla_data(tb[NDA_LLADDR]);
if (!is_valid_ether_addr(addr)) {
if (is_zero_ether_addr(addr)) {
pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ether address\n");
return -EINVAL;
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