From 5b837e578689e7db5679b25d0a159956563f6a93 Mon Sep 17 00:00:00 2001
From: cui <cuiweixie@gmail.com>
Date: Tue, 5 May 2026 18:41:22 +0800
Subject: [PATCH] eth/downloader: use batch index in deliver reconstruct
 (#34870)

The reconstruct callback indexes parallel response slices (bodies,
receipts). Passing the accept counter used the wrong element when an
earlier header in the same batch hit a stale slot.
---
 eth/downloader/queue.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eth/downloader/queue.go b/eth/downloader/queue.go
index dd17b7f1ed..585906b8bd 100644
--- a/eth/downloader/queue.go
+++ b/eth/downloader/queue.go
@@ -689,9 +689,9 @@ func (q *queue) deliver(id string, taskPool map[common.Hash]*types.Header,
 		i++
 	}
 
-	for _, header := range request.Headers[:i] {
+	for k, header := range request.Headers[:i] {
 		if res, stale, err := q.resultCache.GetDeliverySlot(header.Number.Uint64()); err == nil && !stale {
-			reconstruct(accepted, res)
+			reconstruct(k, res)
 			accepted++
 		} else {
 			// Between here and above, some other peer filled this result,