core/vm: use golang native big.Int (ethereum#26834)

reverts ethereum#26021, to use the upstream bigint instead.

core/vm/contracts.go

@@ -29,7 +29,6 @@ import (
 	"github.com/ethereum/go-ethereum/crypto/bls12381"
 	"github.com/ethereum/go-ethereum/crypto/bn256"
 	"github.com/ethereum/go-ethereum/params"
-	big2 "github.com/holiman/big"
 	"golang.org/x/crypto/ripemd160"
 )
 
@@ -378,9 +377,9 @@ func (c *bigModExp) Run(input []byte) ([]byte, error) {
 	}
 	// Retrieve the operands and execute the exponentiation
 	var (
-		base = new(big2.Int).SetBytes(getData(input, 0, baseLen))
-		exp  = new(big2.Int).SetBytes(getData(input, baseLen, expLen))
-		mod  = new(big2.Int).SetBytes(getData(input, baseLen+expLen, modLen))
+		base = new(big.Int).SetBytes(getData(input, 0, baseLen))
+		exp  = new(big.Int).SetBytes(getData(input, baseLen, expLen))
+		mod  = new(big.Int).SetBytes(getData(input, baseLen+expLen, modLen))
 		v    []byte
 	)
 	switch {

go.mod

@@ -35,7 +35,6 @@ require (
 	github.com/gorilla/websocket v1.4.2
 	github.com/graph-gophers/graphql-go v1.3.0
 	github.com/hashicorp/go-bexpr v0.1.10
-	github.com/holiman/big v0.0.0-20221017200358-a027dc42d04e
 	github.com/holiman/bloomfilter/v2 v2.0.3
 	github.com/holiman/uint256 v1.2.0
 	github.com/huin/goupnp v1.0.3
@@ -45,6 +44,7 @@ require (
 	github.com/jedisct1/go-minisign v0.0.0-20190909160543-45766022959e
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/karalabe/usb v0.0.2
+	github.com/kylelemons/godebug v1.1.0
 	github.com/mattn/go-colorable v0.1.13
 	github.com/mattn/go-isatty v0.0.16
 	github.com/naoina/toml v0.1.2-0.20170918210437-9fafd6967416
@@ -98,7 +98,6 @@ require (
 	github.com/klauspost/compress v1.15.15 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.4.1 // indirect

go.sum

@@ -293,8 +293,6 @@ github.com/hashicorp/go-version v1.2.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
-github.com/holiman/big v0.0.0-20221017200358-a027dc42d04e h1:pIYdhNkDh+YENVNi3gto8n9hAmRxKxoar0iE6BLucjw=
-github.com/holiman/big v0.0.0-20221017200358-a027dc42d04e/go.mod h1:j9cQbcqHQujT0oKJ38PylVfqohClLr3CvDC+Qcg+lhU=
 github.com/holiman/bloomfilter/v2 v2.0.3 h1:73e0e/V0tCydx14a0SCYS/EWCxgwLZ18CZcZKVu0fao=
 github.com/holiman/bloomfilter/v2 v2.0.3/go.mod h1:zpoh+gs7qcpqrHr3dB55AMiJwo0iURXE7ZOP9L9hSkA=
 github.com/holiman/uint256 v1.2.0 h1:gpSYcPLWGv4sG43I2mVLiDZCNDh/EpGjSk8tmtxitHM=

oss-fuzz.sh

@@ -125,7 +125,5 @@ compile_fuzzer tests/fuzzers/snap  FuzzSRange fuzz_storage_range
 compile_fuzzer tests/fuzzers/snap  FuzzByteCodes fuzz_byte_codes
 compile_fuzzer tests/fuzzers/snap  FuzzTrieNodes fuzz_trie_nodes
 
-compile_fuzzer tests/fuzzers/modexp  Fuzz fuzzModexp
-
 #TODO: move this to tests/fuzzers, if possible
 compile_fuzzer crypto/blake2b  Fuzz      fuzzBlake2b