From 1c6bae1eb7d4e68fb517d804a9eb5d536869fd71 Mon Sep 17 00:00:00 2001
From: myT <mighty.cow@mailinator.com>
Date: Thu, 6 Jul 2017 05:41:03 +0200
Subject: [PATCH] fixed a NULL pointer dereference crash in RB_CalcDiffuseColor

---
 code/renderer/tr_shade_calc.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/renderer/tr_shade_calc.cpp b/code/renderer/tr_shade_calc.cpp
index ffa235e..2b9e9e3 100644
--- a/code/renderer/tr_shade_calc.cpp
+++ b/code/renderer/tr_shade_calc.cpp
@@ -1044,7 +1044,11 @@ void RB_CalcDiffuseColor( unsigned char *colors )
 	vec3_t			lightDir;
 	vec3_t			directedLight;
 	int				numVertexes;
+
 	ent = backEnd.currentEntity;
+	if (!ent || !tess.numVertexes)
+		return;
+
 	ambientLightInt = ent->ambientLightInt;
 	VectorCopy( ent->ambientLight, ambientLight );
 	VectorCopy( ent->directedLight, directedLight );