From 0ed20efaceab0a003566d51eba0468c03e69cc53 Mon Sep 17 00:00:00 2001
From: Daniel Liu <139250065@qq.com>
Date: Sun, 16 Nov 2025 13:53:04 +0800
Subject: [PATCH] eth/tracers: fix unsafe pointer manipulation for slice
 creation, close XFN-91 (#1729)

---
 eth/tracers/tracer.go | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/eth/tracers/tracer.go b/eth/tracers/tracer.go
index 2fa04cd1ad..8bbd4cc559 100644
--- a/eth/tracers/tracer.go
+++ b/eth/tracers/tracer.go
@@ -44,13 +44,9 @@ const bigIntegerJS = `var bigInt=function(undefined){"use strict";var BASE=1e7,L
 // If those are duktape stack items, popping them off **will** make the slice
 // contents change.
 func makeSlice(ptr unsafe.Pointer, size uint) []byte {
-	var sl = struct {
-		addr uintptr
-		len  int
-		cap  int
-	}{uintptr(ptr), int(size), int(size)}
-
-	return *(*[]byte)(unsafe.Pointer(&sl))
+	// This is the preferred, officially supported, and safer way
+	// to create a slice from a raw pointer in modern Go versions.
+	return unsafe.Slice((*byte)(ptr), int(size))
 }
 
 // popSlice pops a buffer off the JavaScript stack and returns it as a slice.