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-rw-r--r--net/core/rtnetlink.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 48f61885fd6f..5ea1bed08ede 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -4104,6 +4104,11 @@ static int rtnl_fdb_get(struct sk_buff *in_skb, struct nlmsghdr *nlh,
if (err < 0)
return err;
+ if (!addr) {
+ NL_SET_ERR_MSG(extack, "Missing lookup address for fdb get request");
+ return -EINVAL;
+ }
+
if (brport_idx) {
dev = __dev_get_by_index(net, brport_idx);
if (!dev) {