From 29345e9e123102825a7d2b8ae085f29df6569618 Mon Sep 17 00:00:00 2001
From: Glenn Willen <gwillen@nerdnet.org>
Date: Wed, 7 Dec 2022 13:52:03 -0800
Subject: [PATCH] pgreco's startup crash fix

---
 src/net_processing.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index f92e1414e9..872e399d21 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -910,6 +910,10 @@ bool PeerManagerImpl::TipMayBeStale()
 
 bool PeerManagerImpl::CanDirectFetch()
 {
+    if(!m_chainman.ActiveChain().Tip()) {
+        LogPrint(BCLog::NET, "Startup crash avoided\n");
+        return false;
+    }
     return m_chainman.ActiveChain().Tip()->GetBlockTime() > GetAdjustedTime() - m_chainparams.GetConsensus().nPowTargetSpacing * 20;
 }