1 files changed, 5 insertions, 2 deletions

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 49a279a7cc15..9e2c0a7cb325 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3231,8 +3231,11 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
         int err = 0;
         int fidx = 0;
 
-        if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb,
-                        IFLA_MAX, ifla_policy, NULL) == 0) {
+        err = nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb,
+                          IFLA_MAX, ifla_policy, NULL);
+        if (err < 0) {
+                return -EINVAL;
+        } else if (err == 0) {
                 if (tb[IFLA_MASTER])
                         br_idx = nla_get_u32(tb[IFLA_MASTER]);
         }