eth/tracers/native: fix possible crash in prestate tracer ethereum#26351 (#1313)

gzliudan · web-flow · commit dee4c985b1ca · 2025-09-09T09:52:13.000+08:00
diff --git a/eth/tracers/native/prestate.go b/eth/tracers/native/prestate.go
@@ -45,7 +45,7 @@ type account struct {
 }
 
 func (a *account) exists() bool {
-	return a.Balance.Sign() != 0 || a.Nonce > 0 || len(a.Code) > 0 || len(a.Storage) > 0
+	return a.Nonce > 0 || len(a.Code) > 0 || len(a.Storage) > 0 || (a.Balance != nil && a.Balance.Sign() != 0)
 }
 
 type accountMarshaling struct {

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ type account struct {`
`45`	`45`	`}`
`46`	`46`
`47`	`47`	`func (a *account) exists() bool {`
`48`		`- return a.Balance.Sign() != 0 \|\| a.Nonce > 0 \|\| len(a.Code) > 0 \|\| len(a.Storage) > 0`
	`48`	`+ return a.Nonce > 0 \|\| len(a.Code) > 0 \|\| len(a.Storage) > 0 \|\| (a.Balance != nil && a.Balance.Sign() != 0)`
`49`	`49`	`}`
`50`	`50`
`51`	`51`	`type accountMarshaling struct {`