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) {