From 2f3a6da295056e5b1cd0329e3c399ea4832b6343 Mon Sep 17 00:00:00 2001
From: Magnus Norddahl <dpjudas@users.noreply.github.com>
Date: Mon, 5 Dec 2016 04:05:55 +0100
Subject: [PATCH] Fix buffer overrun

---
 src/gl/system/gl_swframebuffer.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gl/system/gl_swframebuffer.cpp b/src/gl/system/gl_swframebuffer.cpp
index 421fe92781..6b3caa81ef 100644
--- a/src/gl/system/gl_swframebuffer.cpp
+++ b/src/gl/system/gl_swframebuffer.cpp
@@ -2316,7 +2316,11 @@ bool OpenGLSWFrameBuffer::OpenGLPal::Update()
 	{
 		buff[i] = ColorARGB(pal[i].a, pal[i - 1].r, pal[i - 1].g, pal[i - 1].b);
 	}
-	BorderColor = ColorARGB(pal[i].a, pal[i - 1].r, pal[i - 1].g, pal[i - 1].b);
+	if (numEntries > 1)
+	{
+		i = numEntries - 1;
+		BorderColor = ColorARGB(pal[i].a, pal[i - 1].r, pal[i - 1].g, pal[i - 1].b);
+	}
 
 	glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
 	GLint oldBinding = 0;