From b13c1fc2ee983b766e8ab93bc7dcc2eb737fa701 Mon Sep 17 00:00:00 2001
From: Greg Sanders <gsanders87@gmail.com>
Date: Fri, 23 Feb 2024 10:36:25 -0500
Subject: [PATCH] net_processing: Don't attempt to direct fetch blocks from a
 node not advertising blocks

---
 src/net_processing.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index c8da927763443..4ffa7f48cd31f 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -2770,6 +2770,9 @@ void PeerManagerImpl::HeadersDirectFetchBlocks(CNode& pfrom, const Peer& peer, c
     LOCK(cs_main);
     CNodeState *nodestate = State(pfrom.GetId());
 
+    // Header was sent, but blocks not advertised
+    if(!CanServeBlocks(peer)) return;
+
     if (CanDirectFetch() && last_header.IsValid(BLOCK_VALID_TREE) && m_chainman.ActiveChain().Tip()->nChainWork <= last_header.nChainWork) {
         std::vector<const CBlockIndex*> vToFetch;
         const CBlockIndex* pindexWalk{&last_header};