diff --git a/lldb/tools/lldb-vscode/lldb-vscode.cpp b/lldb/tools/lldb-vscode/lldb-vscode.cpp
--- a/lldb/tools/lldb-vscode/lldb-vscode.cpp
+++ b/lldb/tools/lldb-vscode/lldb-vscode.cpp
@@ -1199,14 +1199,18 @@
   // before we are given an executable to launch in a "launch" request, or a
   // executable when attaching to a process by process ID in a "attach"
   // request.
-  FILE *out = llvm::sys::RetryAfterSignal(nullptr, fopen, dev_null_path, "w");
-  if (out) {
-    // Set the output and error file handles to redirect into nothing otherwise
-    // if any code in LLDB prints to the debugger file handles, the output and
-    // error file handles are initialized to STDOUT and STDERR and any output
-    // will kill our debug session.
-    g_vsc.debugger.SetOutputFileHandle(out, true);
-    g_vsc.debugger.SetErrorFileHandle(out, false);
+  if (!g_vsc.input.descriptor.m_is_socket) {
+    FILE *out = llvm::sys::RetryAfterSignal(nullptr, fopen, dev_null_path, "w");
+    if (out) {
+      // If the input and output descriptors are STDIN and STDOUT then we need
+      // to set the output and error file handles to redirect into nothing
+      // otherwise if any code in LLDB prints to the debugger file handles, the
+      // output and error file handles are initialized to STDOUT and STDERR and
+      // any output will kill our debug session. However, if the communication
+      // is via sockets then we can leave these open.
+      g_vsc.debugger.SetOutputFileHandle(out, true);
+      g_vsc.debugger.SetErrorFileHandle(out, false);
+    }
   }
 
   g_vsc.target = g_vsc.debugger.CreateTarget(nullptr);