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vm: restrict max item size in PUSHDATA4

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This commit is contained in:
Evgenii Stratonikov 2019-10-17 17:10:00 +03:00
parent cae431b844
commit 487570153b
2 changed files with 14 additions and 0 deletions
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11
pkg/vm/vm_test.go
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@ -2,6 +2,7 @@ package vm
import (
"bytes"
"encoding/binary"
"encoding/hex"
"math/big"
"math/rand"
@ -175,6 +176,16 @@ func TestPushData4ShortN(t *testing.T) {
assert.Equal(t, true, vm.HasFailed())
}
func TestPushData4BigN(t *testing.T) {
prog := make([]byte, 1+4+MaxItemSize+1)
prog[0] = byte(PUSHDATA4)
binary.LittleEndian.PutUint32(prog[1:], MaxItemSize+1)
vm := load(prog)
vm.Run()
assert.Equal(t, true, vm.HasFailed())
}
func TestPushData4Good(t *testing.T) {
prog := makeProgram(PUSHDATA4, 3, 0, 0, 0, 1, 2, 3)
vm := load(prog)