diff --git a/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java b/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
index 6f3e8b443dc..8cb3bb704cb 100644
--- a/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
+++ b/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
@@ -73,6 +73,9 @@
     extends SocketChannel
     implements SelChImpl
 {
+    // The maximum number of bytes to read/write when using a socket adaptor
+    private static final int MAX_ADAPTOR_BUFFER_SIZE = 128 * 1024;
+
     // Used to make native read and write calls
     private static final NativeDispatcher nd = new SocketDispatcher();
 
@@ -1373,6 +1376,7 @@ int blockingRead(byte[] b, int off, int len, long nanos) throws IOException {
             // nothing to do
             return 0;
         }
+        len = Math.min(len, MAX_ADAPTOR_BUFFER_SIZE);
 
         readLock.lock();
         try {
@@ -1469,7 +1473,7 @@ void blockingWriteFully(byte[] b, int off, int len) throws IOException {
                 beginWrite(true);
                 configureSocketNonBlockingIfVirtualThread();
                 while (pos < end && isOpen()) {
-                    int size = end - pos;
+                    int size = Math.min(end - pos, MAX_ADAPTOR_BUFFER_SIZE);
                     int n = tryWrite(b, pos, size);
                     while (IOStatus.okayToRetry(n) && isOpen()) {
                         park(Net.POLLOUT);