From f83fe44326c469874dab3c6c4b1f0b85e60dcd7a Mon Sep 17 00:00:00 2001
From: Nicolas Deschildre <nicolas@deschildre.fr>
Date: Fri, 3 May 2024 21:04:14 +0200
Subject: [PATCH] Fix: eth_estimateGas with blobs fails when capped by limited
 funds

---
 eth/gasestimator/gasestimator.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/eth/gasestimator/gasestimator.go b/eth/gasestimator/gasestimator.go
index f07f98956e..9d33212fef 100644
--- a/eth/gasestimator/gasestimator.go
+++ b/eth/gasestimator/gasestimator.go
@@ -80,6 +80,11 @@ func Estimate(ctx context.Context, call *core.Message, opts *Options, gasCap uin
 			}
 			available.Sub(available, call.Value)
 		}
+		if opts.Config.IsCancun(opts.Header.Number, opts.Header.Time) && len(call.BlobHashes) > 0 {
+			blobBalanceUsage := new(big.Int).SetInt64(int64(len(call.BlobHashes) * params.BlobTxBlobGasPerBlob))
+			blobBalanceUsage.Mul(blobBalanceUsage, call.BlobGasFeeCap)
+			available.Sub(available, blobBalanceUsage)
+		}
 		allowance := new(big.Int).Div(available, feeCap)
 
 		// If the allowance is larger than maximum uint64, skip checking