core: check absence of blob sidecar in InsertReceiptChain

Author: fjl

core/blockchain.go

@@ -1045,6 +1045,14 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 		} else {
 			liveBlocks, liveReceipts = append(liveBlocks, block), append(liveReceipts, receiptChain[i])
 		}
+
+		// Here we also validate that blob transactions in the block do not contain a sidecar.
+		// While the sidecar does not affect the block hash / tx hash, sending blobs within a block is not allowed.
+		for txIndex, tx := range block.Transactions() {
+			if tx.Type() == types.BlobTxType && tx.BlobSidecar() != nil {
+				return 0, fmt.Errorf("block #%d contains unexpected blob sidecar in tx at index %d", block.NumberU64(), txIndex)
+			}
+		}
 	}
 
 	var (