diff --git a/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java b/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
index ccf8f54a82..b4e5b19049 100644
--- a/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
+++ b/transport/src/main/java/io/netty/channel/nio/AbstractNioByteChannel.java
@@ -116,6 +116,7 @@ public abstract class AbstractNioByteChannel extends AbstractNioChannel {
                     if (localReadAmount <= 0) {
                         // not was read release the buffer
                         byteBuf.release();
+                        byteBuf = null;
                         close = localReadAmount < 0;
                         break;
                     }