add judge before use index

kubeovn · May 11, 2021 · c733c7e · c733c7e
1 parent e7d1bf0
commit c733c7e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pkg/util/net.go b/pkg/util/net.go
@@ -167,6 +167,9 @@ func AddressCount(network *net.IPNet) float64 {
 }
 
 func GenerateRandomV4IP(cidr string) string {
+	if len(strings.Split(cidr, "/")) != 2 {
+		return ""
+	}
 	ip := strings.Split(cidr, "/")[0]
 	netMask, _ := strconv.Atoi(strings.Split(cidr, "/")[1])
 	hostNum := 32 - netMask