4 files changed, 30 insertions, 2 deletions
diff --git a/vcl/unx/gtk3/glomenu.cxx b/vcl/unx/gtk3/glomenu.cxx
index a391649bbb..779d20f9b8 100644
--- a/vcl/unx/gtk3/glomenu.cxx
+++ b/vcl/unx/gtk3/glomenu.cxx
@@ -560,8 +560,8 @@ g_lo_menu_new_submenu_in_item_in_section (GLOMenu *menu,
 
         g_menu_model_items_changed (G_MENU_MODEL (model), position, 1, 1);
 
-        g_object_unref (model);
     }
+    g_object_unref (model);
 }
 
 GLOMenu *
diff --git a/vcl/unx/gtk3/gtkinst.cxx b/vcl/unx/gtk3/gtkinst.cxx
index c76d6291ce..b8da4f7b7a 100644
--- a/vcl/unx/gtk3/gtkinst.cxx
+++ b/vcl/unx/gtk3/gtkinst.cxx
@@ -11097,10 +11097,16 @@ private:
             gtk_main_do_event(pKeyEvent);
 
             GdkEvent *pTriggerEvent = gtk_get_current_event();
+            bool bEventOwnership = true;
             if (!pTriggerEvent)
+            {
                 pTriggerEvent = pKeyEvent;
+                bEventOwnership = false;
+            }
 
             gtk_menu_popup_at_widget(m_pMenu, pWidget, GDK_GRAVITY_SOUTH_WEST, GDK_GRAVITY_NORTH_WEST, pTriggerEvent);
+            if (bEventOwnership)
+                gdk_event_free(pTriggerEvent);
 
             gdk_event_free(pKeyEvent);
         }
@@ -11118,6 +11124,7 @@ private:
             {
                 gdk_event_get_button(pEvent, &nButton);
                 nTime = gdk_event_get_time(pEvent);
+                gdk_event_free(pEvent);
             }
             else
             {
@@ -11459,8 +11466,12 @@ public:
             gtk_main_do_event(pKeyEvent);
 
             GdkEvent *pTriggerEvent = gtk_get_current_event();
+            bool bEventOwnership = true;
             if (!pTriggerEvent)
+            {
                 pTriggerEvent = pKeyEvent;
+                bEventOwnership = false;
+            }
 
             bool bSwapForRTL = SwapForRTL(pWidget);
 
@@ -11478,6 +11489,8 @@ public:
                 else
                     gtk_menu_popup_at_rect(m_pMenu, widget_get_surface(pWidget), &aRect, GDK_GRAVITY_NORTH_EAST, GDK_GRAVITY_NORTH_WEST, pTriggerEvent);
             }
+            if (bEventOwnership)
+                gdk_event_free(pTriggerEvent);
 
             gdk_event_free(pKeyEvent);
         }
@@ -11500,6 +11513,7 @@ public:
                 if (!gdk_event_get_button(pEvent, &nButton))
                     nButton = 0;
                 nTime = gdk_event_get_time(pEvent);
+                gdk_event_free(pEvent);
             }
             else
             {
@@ -14136,6 +14150,8 @@ private:
 #if !GTK_CHECK_VERSION(4, 0, 0)
         GdkEvent *pEvent = gtk_get_current_event();
         m_bChangedByMouse = pEvent && categorizeEvent(pEvent) == VclInputFlags::MOUSE;
+        if (pEvent)
+            gdk_event_free(pEvent);
 #else
         //TODO maybe iterate over gtk_widget_observe_controllers looking for a motion controller
 #endif
@@ -15500,7 +15516,10 @@ public:
         GtkTreePath* end_path;
 
         if (!gtk_tree_view_get_visible_range(m_pTreeView, &start_path, &end_path))
+        {
+            g_object_thaw_notify(G_OBJECT(m_pTreeModel));
             return;
+        }
 
         GtkInstanceTreeIter aGtkIter(nullptr);
         gtk_tree_model_get_iter(m_pTreeModel, &aGtkIter.iter, start_path);
@@ -16963,6 +16982,8 @@ private:
         atk_object_set_description(pChild,
                                    OUStringToOString(sTooltipText, RTL_TEXTENCODING_UTF8).getStr());
         g_object_unref(pChild);
+        gtk_tree_path_free(pPath);
+
 #endif
     }
 
@@ -20340,6 +20361,7 @@ public:
                 bFindButtonTextRenderer = false;
             }
         }
+        g_list_free(cells);
 
         // Seeing as GtkCellRendererPixbuf no longer takes a surface, then insert our own replacement
         // to render that instead here
diff --git a/vcl/unx/gtk3/gtksalmenu.cxx b/vcl/unx/gtk3/gtksalmenu.cxx
index a510473650..ddfa5ef36b 100644
--- a/vcl/unx/gtk3/gtksalmenu.cxx
+++ b/vcl/unx/gtk3/gtksalmenu.cxx
@@ -125,6 +125,7 @@ static void RemoveDisabledItemsFromNativeMenu(GLOMenu* pMenu, GList** pOldComman
                             g_free(pSubCommand);
                         }
                     }
+                    g_object_unref(pSubMenuModel);
                 }
             }
 
@@ -830,6 +831,7 @@ bool GtkSalMenu::AddMenuBarButton(const SalMenuButtonItem& rNewItem)
         pImage = gtk_image_new_from_gicon(pIcon);
 #endif
         g_object_unref(pIcon);
+        g_bytes_unref(pBytes);
     }
 
     GtkWidget* pButton = AddButton(pImage);
@@ -1361,7 +1363,8 @@ bool GtkSalMenu::NativeSetItemCommand( unsigned nSection,
 
     if ( aCurrentCommand == nullptr || g_strcmp0( aCurrentCommand, aCommand ) != 0 )
     {
-        bool bOldHasSubmenu = g_lo_menu_get_submenu_from_item_in_section(pMenu, nSection, nItemPos) != nullptr;
+        GLOMenu* pSubMenuModel = g_lo_menu_get_submenu_from_item_in_section(pMenu, nSection, nItemPos);
+        bool bOldHasSubmenu = pSubMenuModel != nullptr;
         bSubMenuAddedOrRemoved = bOldHasSubmenu != bIsSubmenu;
         if (bSubMenuAddedOrRemoved)
         {
@@ -1385,6 +1388,8 @@ bool GtkSalMenu::NativeSetItemCommand( unsigned nSection,
             g_lo_menu_set_action_and_target_value_to_item_in_section( pMenu, nSection, nItemPos, aItemCommand, pTarget );
             pTarget = nullptr;
         }
+        if (bOldHasSubmenu)
+            g_object_unref(pSubMenuModel);
 
         g_free( aItemCommand );
     }
diff --git a/vcl/unx/gtk3/salnativewidgets-gtk.cxx b/vcl/unx/gtk3/salnativewidgets-gtk.cxx
index a3a82edaa1..bfdeed4238 100644
--- a/vcl/unx/gtk3/salnativewidgets-gtk.cxx
+++ b/vcl/unx/gtk3/salnativewidgets-gtk.cxx
@@ -2332,6 +2332,7 @@ bool GtkSalGraphics::updateSettings(AllSettings& rSettings)
     gchar* pFontname = nullptr;
     g_object_get(pSettings, "gtk-font-name", &pFontname, nullptr);
     PangoFontDescription* pFontDesc = pango_font_description_from_string(pFontname);
+    g_free(pFontname);
     vcl::Font aFont(pango_to_vcl(pFontDesc, rSettings.GetUILanguageTag().getLocale()));
     pango_font_description_free(pFontDesc);
 #else