From 71928fa2280e94532a96c406ea18095f80070a7e Mon Sep 17 00:00:00 2001
From: Duke <duke@hush.is>
Date: Tue, 14 Mar 2023 14:42:39 -0400
Subject: [PATCH] Randomize order of processing messages from peers

---
 src/net.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/net.cpp b/src/net.cpp
index e8f693c11..d84a28710 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1945,6 +1945,11 @@ void ThreadMessageHandler()
 
         bool fSleep = true;
 
+        // Randomize the order in which we process messages from/to our peers.
+        // This prevents attacks in which an attacker exploits having multiple
+        // consecutive connections in the vNodes list.
+        random_shuffle(vNodesCopy.begin(), vNodesCopy.end(), GetRandInt);
+
         BOOST_FOREACH(CNode* pnode, vNodesCopy)
         {
             if (pnode->fDisconnect)