Fix lint errors

Signed-off-by: Kirtana Ashok <kiashok@microsoft.com>

ext4/dmverity/dmverity_test.go

@@ -2,10 +2,10 @@ package dmverity
 
 import (
 	"bytes"
+	"crypto/rand"
 	"encoding/binary"
 	"errors"
 	"io"
-	"math/rand"
 	"os"
 	"strings"
 	"testing"

internal/cmd/io_npipe.go

@@ -22,7 +22,7 @@ import (
 
 func init() {
 	// Need to seed for the rng in backoff.NextBackoff()
-	rand.Seed(time.Now().UnixNano())
+	rand.New(rand.NewSource(time.Now().UnixNano()))
 }
 
 // NewNpipeIO creates connected upstream io. It is the callers responsibility to validate that `if terminal == true`, `stderr == ""`. retryTimeout

internal/tools/networkagent/main.go

@@ -19,6 +19,8 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials/insecure"
 
+	crypto "crypto/rand"
+
 	"github.com/Microsoft/hcsshim/hcn"
 	"github.com/Microsoft/hcsshim/internal/log"
 	ncproxygrpc "github.com/Microsoft/hcsshim/pkg/ncproxy/ncproxygrpc/v1"
@@ -39,7 +41,7 @@ const (
 func generateMAC() (string, error) {
 	buf := make([]byte, 6)
 
-	_, err := rand.Read(buf)
+	_, err := crypto.Read(buf)
 	if err != nil {
 		return "", err
 	}

internal/winapi/utils.go

@@ -4,7 +4,6 @@ package winapi
 
 import (
 	"errors"
-	"reflect"
 	"syscall"
 	"unsafe"
 
@@ -14,11 +13,7 @@ import (
 // Uint16BufferToSlice wraps a uint16 pointer-and-length into a slice
 // for easier interop with Go APIs
 func Uint16BufferToSlice(buffer *uint16, bufferLength int) (result []uint16) {
-	hdr := (*reflect.SliceHeader)(unsafe.Pointer(&result))
-	hdr.Data = uintptr(unsafe.Pointer(buffer))
-	hdr.Cap = bufferLength
-	hdr.Len = bufferLength
-
+	result = unsafe.Slice(buffer, bufferLength)
 	return
 }