From 58242dd1f2d186a83fbda80b724467b5a5dd2dd5 Mon Sep 17 00:00:00 2001
From: CoolSpy3 <55305038+CoolSpy3@users.noreply.github.com>
Date: Tue, 24 Dec 2024 11:16:52 -0800
Subject: [PATCH] Fix Crash When Loading an Invalid Background HDR Image
 (#6744)

---
 docs/reference/changelog-r2024.md | 1 +
 src/webots/nodes/WbBackground.cpp | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/docs/reference/changelog-r2024.md b/docs/reference/changelog-r2024.md
index c8f495b3a51..39f328c1769 100644
--- a/docs/reference/changelog-r2024.md
+++ b/docs/reference/changelog-r2024.md
@@ -34,3 +34,4 @@ Released on December **th, 2023.
     - Fixed a bug where Webots would crash if a geometry was inserted into a `Shape` node used a bounding box ([#6691](https://github.com/cyberbotics/webots/pull/6691)).
     - Removed the old `wb_supervisor_field_import_sf_node` and `wb_supervisor_field_import_mf_node` functions from the list of editor autocomplete suggestions ([#6701](https://github.com/cyberbotics/webots/pull/6701)).
     - Fixed a bug preventing nodes from being inserted into unconnected proto fields ([#6735](https://github.com/cyberbotics/webots/pull/6735)).
+    - Fixed crash when an invalid HDR image was set as a world background ([#6744](https://github.com/cyberbotics/webots/pull/6744)).
diff --git a/src/webots/nodes/WbBackground.cpp b/src/webots/nodes/WbBackground.cpp
index 9f442155566..2cb42a8ff16 100644
--- a/src/webots/nodes/WbBackground.cpp
+++ b/src/webots/nodes/WbBackground.cpp
@@ -540,6 +540,11 @@ bool WbBackground::loadIrradianceTexture(int i) {
   float *data = stbi_loadf_from_memory(reinterpret_cast<const unsigned char *>(content.constData()), content.size(),
                                        &mIrradianceWidth, &mIrradianceHeight, &components, 0);
 
+  if (data == NULL) {
+    warn(tr("Failed to load HDR texture '%1': %2.").arg(url).arg(stbi_failure_reason()));
+    return false;
+  }
+
   const int rotate = gCoordinateSystemRotate(i);
   // FIXME: this texture rotation should be performed by OpenGL or in the shader to get a better performance
   if (rotate != 0) {