From 2f10aac60f5fa8b926db7036ef9f50bd75253730 Mon Sep 17 00:00:00 2001
From: wgr523 <wgr523@gmail.com>
Date: Thu, 25 May 2023 12:22:23 +0800
Subject: [PATCH] eth: ensure from<to when tracing chain (credits Chen Nan via
bugbounty) (#251)
Co-authored-by: Martin Holst Swende <martin@swende.se>
---
eth/api_tracer.go | 3 +++
1 file changed, 3 insertions(+)
diff --git a/eth/api_tracer.go b/eth/api_tracer.go
index aa4d74b7b2bb..a6daf7f4897d 100644
--- a/eth/api_tracer.go
+++ b/eth/api_tracer.go
@@ -121,6 +121,9 @@ func (api *PrivateDebugAPI) TraceChain(ctx context.Context, start, end rpc.Block
if to == nil {
return nil, fmt.Errorf("end block #%d not found", end)
}
+ if from.Number().Cmp(to.Number()) >= 0 {
+ return nil, fmt.Errorf("end block (#%d) needs to come after start block (#%d)", end, start)
+ }
return api.traceChain(ctx, from, to, config)
}