GraphicsMagick: coders/wpg.c Prevent addition of two uint_16_t o...

changeset be9614494006 in /hg/GraphicsMagick
details: http://hg.GraphicsMagick.org/hg/GraphicsMagick?cmd=changeset;node=be9614494006
summary: coders/wpg.c Prevent addition of two uint_16_t overflow.

diffstat:

 coders/wpg.c |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 5fea8d88557e -r be9614494006 coders/wpg.c
--- a/coders/wpg.c	Sat Oct 21 12:26:40 2023 +0200
+++ b/coders/wpg.c	Sat Oct 21 17:35:28 2023 +0200
@@ -1415,7 +1415,7 @@
             case 0x0E:  /*Color palette */
               LoadPaletteRec(image,&WPG_Palette,logging);
               PaletteItems = WPG_Palette.NumOfEntries;
-              if(PaletteItems + WPG_Palette.StartIndex > 256)
+              if((magick_uint32_t)PaletteItems + WPG_Palette.StartIndex > 256)
                   ThrowReaderException(CorruptImageError,ColormapExceedsColorsLimit,image);
               if(pPalette==NULL)
               {