From 3140668d496c77fe4f4b08b123919667b782b0ab Mon Sep 17 00:00:00 2001
From: cui <cuiweixie@gmail.com>
Date: Mon, 13 Jul 2026 18:13:15 +0800
Subject: [PATCH] miner: cap configured MaxBlobsPerBlock to protocol limit
 (#35295)

## Summary

- Only apply user-configured `MaxBlobsPerBlock` when it is strictly
below the protocol-defined maximum.
- Prevents the miner from building blocks that exceed the consensus blob
limit.

## Test plan

- [x] `go test -short ./miner/`
---
 miner/worker.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/miner/worker.go b/miner/worker.go
index 7f0e11f30a..cd53addf9b 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -51,8 +51,8 @@ var (
 // Users can specify the maximum number of blobs per block if necessary.
 func (miner *Miner) maxBlobsPerBlock(time uint64) int {
 	maxBlobs := eip4844.MaxBlobsPerBlock(miner.chainConfig, time)
-	if miner.config.MaxBlobsPerBlock != 0 {
-		maxBlobs = miner.config.MaxBlobsPerBlock
+	if configured := miner.config.MaxBlobsPerBlock; configured != 0 && configured < maxBlobs {
+		maxBlobs = configured
 	}
 	return maxBlobs
 }