From 9bd4117058ffdf37e437de4bd9d56f3df208a2c4 Mon Sep 17 00:00:00 2001
From: Zach Reyes <zasweq@google.com>
Date: Tue, 13 Sep 2022 00:59:32 -0400
Subject: [PATCH] Switched local var to deepcopy

---
 internal/transport/http2_client.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/internal/transport/http2_client.go b/internal/transport/http2_client.go
index e07c8f561d8c..bc5c8b41abe8 100644
--- a/internal/transport/http2_client.go
+++ b/internal/transport/http2_client.go
@@ -1233,7 +1233,11 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
 		upperLimit = math.MaxUint32 // Kill all streams after the GoAway ID.
 	}
 
-	activeStreams := t.activeStreams
+	activeStreams := make(map[uint32]*Stream)
+	for streamID, stream  := range t.activeStreams {
+		activeStreams[streamID] = stream
+	}
+
 	t.prevGoAwayID = id
 	t.mu.Unlock()
 	for streamID, stream := range activeStreams {