From ce1d1c6248ebc9a109f8ba594d3aeb294751023a Mon Sep 17 00:00:00 2001
From: yyforyongyu <yy2452@columbia.edu>
Date: Thu, 23 Feb 2023 23:18:05 +0800
Subject: [PATCH] discovery: fix heap escape on `cachedMsgs`

---
 discovery/gossiper.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/discovery/gossiper.go b/discovery/gossiper.go
index 15dfe796e2..ffcb2d0646 100644
--- a/discovery/gossiper.go
+++ b/discovery/gossiper.go
@@ -1900,9 +1900,10 @@ func (d *AuthenticatedGossiper) isPremature(chanID lnwire.ShortChannelID,
 	pMsg := &processedNetworkMsg{msg: copied}
 
 	// Add the network message.
-	cachedMsgs.msgs = append(cachedMsgs.msgs, pMsg)
+	msgs := cachedMsgs.msgs
+	msgs = append(msgs, pMsg)
 	_, err = d.futureMsgs.Put(msgHeight, &cachedNetworkMsg{
-		msgs: cachedMsgs.msgs,
+		msgs: msgs,
 	})
 	if err != nil {
 		log.Errorf("Adding future message got error: %v", err)