net: mgmt: Fix mgmt push event

Do not even consider the push event if CONFIG_NET_MGMT_EVENT_INFO
enabled and info length is more than NET_EVENT_INFO_MAX_SIZE.
Print error message and ignore the event.

Signed-off-by: Ravi kumar Veeramally <[email protected]>

Author: rveerama1

subsys/net/ip/net_mgmt.c

@@ -46,9 +46,6 @@ static u16_t out_event;
 static inline void mgmt_push_event(u32_t mgmt_event, struct net_if *iface,
 				   void *info, size_t length)
 {
-	events[in_event].event = mgmt_event;
-	events[in_event].iface = iface;
-
 #ifdef CONFIG_NET_MGMT_EVENT_INFO
 	/* Let's put the info length to 0 by default as it will be the most
 	 * common case. Also, it makes code a bit cleaner below as there is
@@ -63,6 +60,7 @@ static inline void mgmt_push_event(u32_t mgmt_event, struct net_if *iface,
 		} else {
 			NET_ERR("Event info length %u > max size %u",
 				length, NET_EVENT_INFO_MAX_SIZE);
+			return;
 		}
 	}
 
@@ -71,6 +69,9 @@ static inline void mgmt_push_event(u32_t mgmt_event, struct net_if *iface,
 	ARG_UNUSED(length);
 #endif /* CONFIG_NET_MGMT_EVENT_INFO */
 
+	events[in_event].event = mgmt_event;
+	events[in_event].iface = iface;
+
 	in_event++;
 
 	if (in_event == CONFIG_NET_MGMT_EVENT_QUEUE_SIZE) {