core: avoid uaf in resource_set_user_data

hyprwm · May 18, 2024 · 3afed43 · 3afed43
1 parent f5181a0
commit 3afed43
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/main.cpp b/src/main.cpp
@@ -723,11 +723,12 @@ const wl_interface {} = {{
     wl_list_remove(&resourceDestroyListener.link);
     wl_list_init(&resourceDestroyListener.link);
 
+    wl_resource_set_user_data(pResource, nullptr);
+
     // if we still own the wayland resource,
     // it means we need to destroy it.
     if (wl_resource_get_user_data(pResource) == this)
         wl_resource_destroy(pResource);
-    wl_resource_set_user_data(pResource, nullptr);
 }}
 
 void {}::onDestroyCalled() {{