accounts/abi/bind: fix destructive packing of *big.Int (#20412)

7ce7c396 · Marius van der Wijden · Guillaume Ballet · fc7e0fe6 · 7ce7c396
Commit 7ce7c396 authored Dec 02, 2019 by Marius van der Wijden Committed by Guillaume Ballet Dec 02, 2019
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pack.go accounts/abi/pack.go +1 -1

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--- a/accounts/abi/pack.go
+++ b/accounts/abi/pack.go
@@ -73,7 +73,7 @@ func packNum(value reflect.Value) []byte {
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		return U256(big.NewInt(value.Int()))
 	case reflect.Ptr:
-		return U256(value.Interface().(*big.Int))
+		return U256(new(big.Int).Set(value.Interface().(*big.Int)))
 	default:
 		panic("abi: fatal error")
 	}