From d3d6e0e7090ae4a45e9e616e92f3395650471436 Mon Sep 17 00:00:00 2001
From: Kahbazi <A.Kahbazi@gmail.com>
Date: Sat, 8 Jun 2019 03:12:09 +0430
Subject: [PATCH] Ensure MaxConcurrentRequests is a positive number (#11003)

---
 .../RequestThrottling/src/RequestThrottlingMiddleware.cs      | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Middleware/RequestThrottling/src/RequestThrottlingMiddleware.cs b/src/Middleware/RequestThrottling/src/RequestThrottlingMiddleware.cs
index 4aa7e9c9be..7af7e0603c 100644
--- a/src/Middleware/RequestThrottling/src/RequestThrottlingMiddleware.cs
+++ b/src/Middleware/RequestThrottling/src/RequestThrottlingMiddleware.cs
@@ -35,6 +35,10 @@ namespace Microsoft.AspNetCore.RequestThrottling
             {
                 throw new ArgumentException("The value of 'options.MaxConcurrentRequests' must be specified.", nameof(options));
             }
+            if (_requestThrottlingOptions.MaxConcurrentRequests < 0)
+            {
+                throw new ArgumentException("The value of 'options.MaxConcurrentRequests' must be a positive integer.", nameof(options));
+            }
             if (_requestThrottlingOptions.RequestQueueLimit < 0)
             {
                 throw new ArgumentException("The value of 'options.RequestQueueLimit' must be a positive integer.", nameof(options));