http2: add checks to update the pending list if stream received is in…

… scope

src/node_http2.cc

@@ -2202,11 +2202,18 @@ void Http2Stream::SubmitRstStream(const uint32_t code) {
   // the pending data when it is safe to do so. This is to avoid
   // double free error due to unwanted behavior of nghttp2.
   // Ref:https://github.com/nodejs/node/issues/38964
-  if (!is_writable() && is_reading()) {
+
+  // Add stream to the pending list if it is received with scope
+  // below in the stack. The pending list may not get processed
+  // if RST_STREAM received is not in scope and added to the list
+  // causing endpoint to hang.
+  if (session_->is_in_scope() &&
+      !is_writable() && is_reading()) {
     session_->AddPendingRstStream(id_);
     return;
   }
 
+
   // If possible, force a purge of any currently pending data here to make sure
   // it is sent before closing the stream. If it returns non-zero then we need
   // to wait until the current write finishes and try again to avoid nghttp2