From fe13b00d84defce10b4177fde648829b2ae78c77 Mon Sep 17 00:00:00 2001
From: William Vu <William_Vu@rapid7.com>
Date: Tue, 17 Jul 2018 14:33:32 -0500
Subject: [PATCH] Land #10309, PID check for self-migrate

---
 .../post/meterpreter/ui/console/command_dispatcher/core.rb   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/rex/post/meterpreter/ui/console/command_dispatcher/core.rb b/lib/rex/post/meterpreter/ui/console/command_dispatcher/core.rb
index 6b813f0daa..99564b22ed 100644
--- a/lib/rex/post/meterpreter/ui/console/command_dispatcher/core.rb
+++ b/lib/rex/post/meterpreter/ui/console/command_dispatcher/core.rb
@@ -1114,6 +1114,11 @@ class Console::CommandDispatcher::Core
       end
     end
 
+    if pid == server.pid
+      print_error("Process already running at PID #{pid}")
+      return
+    end
+
     server ? print_status("Migrating from #{server.pid} to #{pid}...") : print_status("Migrating to #{pid}")
 
     # Do this thang.