File libraw-CVE-2018-20363,20364,20365.patch of Package libraw.38394

Index: LibRaw-0.15.4/src/libraw_cxx.cpp
===================================================================
--- LibRaw-0.15.4.orig/src/libraw_cxx.cpp	2019-01-09 10:57:04.094096143 +0100
+++ LibRaw-0.15.4/src/libraw_cxx.cpp	2019-01-09 11:00:23.643005916 +0100
@@ -1261,7 +1261,7 @@ int LibRaw::raw2image(void)
     try {
         raw2image_start();
 
-        if (is_phaseone_compressed())
+        if (is_phaseone_compressed() && imgdata.rawdata.raw_alloc)
           {
 			  phase_one_allocate_tempbuffer();
 			  phase_one_subtract_black((ushort*)imgdata.rawdata.raw_alloc,imgdata.rawdata.raw_image);
@@ -1283,7 +1283,7 @@ int LibRaw::raw2image(void)
         get_decoder_info(&decoder_info);
         
         // Move saved bitmap to imgdata.image
-        if(decoder_info.decoder_flags & LIBRAW_DECODER_FLATFIELD)
+        if(decoder_info.decoder_flags & LIBRAW_DECODER_FLATFIELD && imgdata.rawdata.raw_image)
             {
               if (IO.fuji_width) {
                 unsigned r,c;
@@ -1512,7 +1512,7 @@ int LibRaw::raw2image_ex(int do_subtract
     raw2image_start();
 
     // Compressed P1 files with bl data!
-    if (is_phaseone_compressed())
+    if (is_phaseone_compressed() && imgdata.rawdata.raw_alloc)
       {
 		  phase_one_allocate_tempbuffer();
 		  phase_one_subtract_black((ushort*)imgdata.rawdata.raw_alloc,imgdata.rawdata.raw_image);
@@ -1614,7 +1614,7 @@ int LibRaw::raw2image_ex(int do_subtract
       }
         
     // Move saved bitmap to imgdata.image
-    if(decoder_info.decoder_flags & LIBRAW_DECODER_FLATFIELD)
+    if(decoder_info.decoder_flags & LIBRAW_DECODER_FLATFIELD && imgdata.rawdata.raw_image)
       {
         if (IO.fuji_width) 
           {