File 0001-Avoid-out-of-bounds-access-for-monochrome-images-in-.patch of Package pfstools

From 98543dd4f71a302f9c05605ef7f4a7031b2f5da1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
Date: Mon, 3 Jan 2022 04:48:55 +0100
Subject: [PATCH] Avoid out-of-bounds access for monochrome images in pfsview

GCC rightfully complains when `lutPixFloor[257*2] is accessed, enlarge
so the largest used index is size-1.

Also fix check for value=+inf in clipping check.

Fixes https://sourceforge.net/p/pfstools/bugs/52/
---
 src/pfsview/pfsview_widget.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/pfsview/pfsview_widget.cpp b/src/pfsview/pfsview_widget.cpp
index 0c8e98f..c7ba599 100644
--- a/src/pfsview/pfsview_widget.cpp
+++ b/src/pfsview/pfsview_widget.cpp
@@ -340,7 +340,7 @@ static void mapFrameToImage( pfs::Array2D *R, pfs::Array2D *G, pfs::Array2D *B,
   assert( !color || (color && B != NULL) );
 
   
-  float lutPixFloor[257*2];
+  float lutPixFloor[257*2+1];
   QRgb lutPixel[257*2];
   int lutSize;
   if( !color && ( negativeTreatment == NEGATIVE_GREEN_SCALE ||
@@ -491,7 +491,7 @@ static void mapFrameToImage( pfs::Array2D *R, pfs::Array2D *G, pfs::Array2D *B,
         // Single channel
         int p = binarySearchPixels( (*R)(index), lutPixFloor, lutSize );        
         pixel = lutPixel[p];
-        if( infNaNTreatment == INFNAN_MARK_AS_RED && (p == 0 || p == LUTSIZE+1)) 
+        if( infNaNTreatment == INFNAN_MARK_AS_RED && (p == 0 || p == lutSize - 1))
           if( !std::isfinite( (*R)(index) ) ) {   // x is NaN or Inf 
             pixel = QColor( 255, 0, 0 ).rgb();
           }
-- 
2.34.1