From 11510a0e0bd07e1204efe4fccc3ab0592832d609 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Janiszewski?=
 <janisozaur@users.noreply.github.com>
Date: Tue, 7 May 2024 06:21:27 +0200
Subject: [PATCH] Guard against possible nullptr dereference when prefetching
 BBox (#21978)

---
 src/openrct2/paint/Paint.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/openrct2/paint/Paint.cpp b/src/openrct2/paint/Paint.cpp
index 0fb4b9745a..ab2b7269f4 100644
--- a/src/openrct2/paint/Paint.cpp
+++ b/src/openrct2/paint/Paint.cpp
@@ -391,7 +391,10 @@ template<uint8_t TRotation> static void PaintStructsSortQuadrant(PaintStruct* pa
         auto* ps = child;
         child = child->NextQuadrantEntry;
 
-        PREFETCH(&child->Bounds);
+        if (child != nullptr)
+        {
+            PREFETCH(&child->Bounds);
+        }
         if (child == nullptr || child->SortFlags & PaintSortFlags::OutsideQuadrant)
         {
             break;