fix panic when adding menuroles on linux (#4558)

* fix panic when adding menuroles on linux

* update changelog

---------

Co-authored-by: Lea Anthony <lea.anthony@gmail.com>

Author: jaesung9507

v2/internal/frontend/desktop/linux/menu.go

@@ -34,8 +34,11 @@ void addAccelerator(GtkWidget* menuItem, GtkAccelGroup* group, guint key, GdkMod
 }
 */
 import "C"
-import "github.com/wailsapp/wails/v2/pkg/menu"
-import "unsafe"
+import (
+	"unsafe"
+
+	"github.com/wailsapp/wails/v2/pkg/menu"
+)
 
 var menuIdCounter int
 var menuItemToId map[*menu.MenuItem]int
@@ -81,8 +84,10 @@ func (w *Window) SetApplicationMenu(inmenu *menu.Menu) {
 
 func processMenu(window *Window, menu *menu.Menu) {
 	for _, menuItem := range menu.Items {
-		submenu := processSubmenu(menuItem, window.accels)
-		C.gtk_menu_shell_append(C.toGtkMenuShell(unsafe.Pointer(window.menubar)), submenu)
+		if menuItem.SubMenu != nil {
+			submenu := processSubmenu(menuItem, window.accels)
+			C.gtk_menu_shell_append(C.toGtkMenuShell(unsafe.Pointer(window.menubar)), submenu)
+		}
 	}
 }
 

website/src/pages/changelog.mdx

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added url validation for BrowserOpenURL by @APshenkin in [PR](https://github.com/wailsapp/wails/pull/4484)
 - Fixed C compilation error in onWayland on Linux due to declaration after label [#4446](https://github.com/wailsapp/wails/pull/4446) by [@jaesung9507](https://github.com/jaesung9507)
 - Use computed style when adding 'wails-drop-target-active' [PR](https://github.com/wailsapp/wails/pull/4420) by [@riannucci](https://github.com/riannucci)
+- Fixed panic when adding menuroles on Linux [#4558](https://github.com/wailsapp/wails/pull/4558) by [@jaesung9507](https://github.com/jaesung9507)
 
 ## v2.10.2 - 2025-07-06