Update

vendor/tailscale.com/net/sockstats/label_string.go

@@ -28,8 +28,9 @@ const _Label_name = "ControlClientAutoControlClientDialerDERPHTTPClientLogtailLo
 var _Label_index = [...]uint8{0, 17, 36, 50, 63, 78, 93, 107, 123, 140, 157, 169, 186, 201}
 
 func (i Label) String() string {
-	if i >= Label(len(_Label_index)-1) {
+	idx := int(i) - 0
+	if i < 0 || idx >= len(_Label_index)-1 {
 		return "Label(" + strconv.FormatInt(int64(i), 10) + ")"
 	}
-	return _Label_name[_Label_index[i]:_Label_index[i+1]]
+	return _Label_name[_Label_index[idx]:_Label_index[idx+1]]
 }

vendor/tailscale.com/net/sockstats/sockstats_tsgo.go

@@ -10,12 +10,12 @@ import (
 	"fmt"
 	"net"
 	"strings"
-	"sync"
 	"sync/atomic"
 	"syscall"
 	"time"
 
 	"tailscale.com/net/netmon"
+	"tailscale.com/syncs"
 	"tailscale.com/types/logger"
 	"tailscale.com/util/clientmetric"
 	"tailscale.com/version"
@@ -40,7 +40,7 @@ var sockStats = struct {
 	// mu protects fields in this group (but not the fields within
 	// sockStatCounters). It should not be held in the per-read/write
 	// callbacks.
-	mu              sync.Mutex
+	mu              syncs.Mutex
 	countersByLabel map[Label]*sockStatCounters
 	knownInterfaces map[int]string // interface index -> name
 	usedInterfaces  map[int]int    // set of interface indexes
@@ -271,10 +271,10 @@ func setNetMon(netMon *netmon.Monitor) {
 	}
 
 	netMon.RegisterChangeCallback(func(delta *netmon.ChangeDelta) {
-		if !delta.Major {
+		if !delta.RebindLikelyRequired {
 			return
 		}
-		state := delta.New
+		state := delta.CurrentState()
 		ifName := state.DefaultRouteInterface
 		if ifName == "" {
 			return