From 324780697c5020a027efdc24bd9cc2fc926a3546 Mon Sep 17 00:00:00 2001
From: Casey Goodlett <casey.goodlett@kitware.com>
Date: Tue, 18 Dec 2012 13:09:53 -0500
Subject: CTest: Prevent creation of unbounded number of tests in ctest
 (#12904)

Note it is still possible for CTest to start more than the number of
processes specified by PARALLEL_LEVEL, but this prevents the number of
tests to start from being unbounded because of overflow.
---
 Source/CTest/cmCTestMultiProcessHandler.cxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/CTest/cmCTestMultiProcessHandler.cxx b/Source/CTest/cmCTestMultiProcessHandler.cxx
index ebef1ed..76ddeea 100644
--- a/Source/CTest/cmCTestMultiProcessHandler.cxx
+++ b/Source/CTest/cmCTestMultiProcessHandler.cxx
@@ -248,7 +248,12 @@ bool cmCTestMultiProcessHandler::StartTest(int test)
 //---------------------------------------------------------
 void cmCTestMultiProcessHandler::StartNextTests()
 {
-  size_t numToStart = this->ParallelLevel - this->RunningCount;
+  size_t numToStart = 0;
+  if(this->RunningCount < this->ParallelLevel)
+    {
+    numToStart = this->ParallelLevel - this->RunningCount;
+    }
+
   if(numToStart == 0)
     {
     return;
-- 
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