Skip reassigning of the initialization value

pnggroup · Jan 19, 2024 · f51eeee · f51eeee
1 parent 866fdf6
commit f51eeee
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/pngrutil.c b/pngrutil.c
@@ -3171,9 +3171,7 @@ png_check_chunk_length(png_const_structrp png_ptr, png_uint_32 length)
          * (png_ptr->bit_depth > 8? 2: 1)
          + 1
          + (png_ptr->interlaced? 6: 0);
-      if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
-         idat_limit = PNG_UINT_31_MAX;
-      else
+      if (png_ptr->height < PNG_UINT_32_MAX/row_factor)
          idat_limit = png_ptr->height * row_factor;
       row_factor = row_factor > 32566? 32566 : row_factor;
       idat_limit += 6 + 5*(idat_limit/row_factor+1); /* zlib+deflate overhead */