From d1faa228c51d6189e262d790e160e3005fa080bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Janiszewski?=
 <janisozaur@users.noreply.github.com>
Date: Sun, 29 Mar 2020 23:01:13 +0200
Subject: [PATCH] Fix #11128: null tile element in track_block_get_previous
 (#11144)

---
 src/openrct2/ride/Ride.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/openrct2/ride/Ride.cpp b/src/openrct2/ride/Ride.cpp
index f2b79fb7f7..d99a7d7729 100644
--- a/src/openrct2/ride/Ride.cpp
+++ b/src/openrct2/ride/Ride.cpp
@@ -656,6 +656,9 @@ bool track_block_get_previous_from_zero(
  */
 bool track_block_get_previous(int32_t x, int32_t y, TileElement* tileElement, track_begin_end* outTrackBeginEnd)
 {
+    if (tileElement == nullptr)
+        return false;
+
     auto trackElement = tileElement->AsTrack();
     if (trackElement == nullptr)
         return false;