while(true)->loop, use thread.join

lib/msf/core/exploit/capture.rb

@@ -313,7 +313,7 @@ module Msf
         begin
           to = ((datastore['TIMEOUT'] || 500).to_f * 8) / 1000.0
           ::Timeout.timeout(to) do
-            while true
+            loop do
               my_packet = inject_reply(:udp, self.arp_capture)
               next unless my_packet
               next unless my_packet.payload == secret
@@ -349,7 +349,7 @@ module Msf
           begin
             to = ((datastore['TIMEOUT'] || 500).to_f * 8) / 1000.0
             ::Timeout.timeout(to) do
-              while true
+              loop do
                 my_packet = inject_reply(:arp, self.arp_capture)
                 next unless my_packet
                 next unless my_packet.arp_saddr_ip == target_ip

modules/auxiliary/spoof/llmnr/llmnr_response.rb

@@ -206,9 +206,7 @@ attr_accessor :sock, :thread
 
     add_socket(self.sock)
 
-    while thread.alive?
-      select(nil, nil, nil, 0.25)
-    end
+    self.thread.join
   end
 
   def cleanup

modules/auxiliary/spoof/nbns/nbns_response.rb

@@ -173,9 +173,7 @@ class Metasploit3 < Msf::Auxiliary
 
     print_status("NBNS Spoofer started. Listening for NBNS requests with REGEX \"#{datastore['REGEX']}\" ...")
 
-    while thread.alive?
-      IO.select(nil, nil, nil, 0.25)
-    end
+    self.thread.join
     print_status("NBNS Monitor thread exited...")
   end