From fc0b78e8a95e865656c4cfbc59bd2d1b32e2ee91 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Fri, 25 Apr 2025 21:24:01 +0200
Subject: [PATCH] eth/protocols/eth: validate BlockRangeUpdate messages

---
 eth/protocols/eth/handlers.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/eth/protocols/eth/handlers.go b/eth/protocols/eth/handlers.go
index 73f299096e..3e2dd4537e 100644
--- a/eth/protocols/eth/handlers.go
+++ b/eth/protocols/eth/handlers.go
@@ -531,6 +531,9 @@ func handleBlockRangeUpdate(backend Backend, msg Decoder, peer *Peer) error {
 	if err := msg.Decode(&update); err != nil {
 		return err
 	}
+	if err := update.Validate(); err != nil {
+		return err
+	}
 	// We don't do anything with these messages for now, just store them on the peer.
 	peer.lastRange.Store(&update)
 	return nil