1 files changed, 7 insertions, 4 deletions

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9e433d58d265..dc004b1e1f85 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1804,10 +1804,13 @@ static int do_setlink(const struct sk_buff *skb,
                         goto errout;
 
                 nla_for_each_nested(attr, tb[IFLA_VF_PORTS], rem) {
-                        if (nla_type(attr) != IFLA_VF_PORT)
-                                continue;
-                        err = nla_parse_nested(port, IFLA_PORT_MAX,
-                                attr, ifla_port_policy);
+                        if (nla_type(attr) != IFLA_VF_PORT ||
+                            nla_len(attr) < NLA_HDRLEN) {
+                                err = -EINVAL;
+                                goto errout;
+                        }
+                        err = nla_parse_nested(port, IFLA_PORT_MAX, attr,
+                                               ifla_port_policy);
                         if (err < 0)
                                 goto errout;
                         if (!port[IFLA_PORT_VF]) {