From f80914446a3110da8f8fbf3f91a65ed521cca278 Mon Sep 17 00:00:00 2001
From: Satpal <28562234+SatpalSandhu61@users.noreply.github.com>
Date: Wed, 13 Nov 2019 16:09:54 +0000
Subject: [PATCH] Fix for overflow in parent tracking (cherrypicking
 go-ethereum#18165 pull) (#876)

---
 trie/database.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/trie/database.go b/trie/database.go
index d0691b637..d819de1f9 100644
--- a/trie/database.go
+++ b/trie/database.go
@@ -134,7 +134,7 @@ type cachedNode struct {
 	node node   // Cached collapsed trie node, or raw rlp data
 	size uint16 // Byte size of the useful cached data
 
-	parents  uint16                 // Number of live nodes referencing this one
+	parents  uint32                 // Number of live nodes referencing this one
 	children map[common.Hash]uint16 // External children referenced by this node
 
 	flushPrev common.Hash // Previous node in the flush-list