From 7cf79c84e2db723fec8ccf78880915c76d20111c Mon Sep 17 00:00:00 2001
From: Vincent-X-Zhang <vencentzhang@outlook.com>
Date: Wed, 11 Feb 2026 23:44:23 +0800
Subject: [PATCH] Fixed a potential memory leak risk in
 `MemoryStreamExtension.Write`

---
 S7.Net/Helper/MemoryStreamExtension.cs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/S7.Net/Helper/MemoryStreamExtension.cs b/S7.Net/Helper/MemoryStreamExtension.cs
index b451e2d4..5ca9477f 100644
--- a/S7.Net/Helper/MemoryStreamExtension.cs
+++ b/S7.Net/Helper/MemoryStreamExtension.cs
@@ -28,10 +28,15 @@ public static void Write(this MemoryStream stream, ReadOnlySpan<byte> value)
         {
             byte[] buffer = ArrayPool<byte>.Shared.Rent(value.Length);
 
-            value.CopyTo(buffer);
-            stream.Write(buffer, 0, value.Length);
-
-            ArrayPool<byte>.Shared.Return(buffer);
+            try
+            {
+                value.CopyTo(buffer);
+                stream.Write(buffer, 0, value.Length);
+            }
+            finally
+            {
+                ArrayPool<byte>.Shared.Return(buffer);
+            }
         }
     }
 #endif