File bnc949160-fix-colormap-leak.patch of Package giflib.33803

---
 lib/egif_lib.c |    6 ++++++
 1 file changed, 6 insertions(+)

Index: giflib-5.0.5/lib/egif_lib.c
===================================================================
--- giflib-5.0.5.orig/lib/egif_lib.c
+++ giflib-5.0.5/lib/egif_lib.c
@@ -376,6 +376,12 @@ EGifPutImageDesc(GifFileType *GifFile,
     GifFile->Image.Width = Width;
     GifFile->Image.Height = Height;
     GifFile->Image.Interlace = Interlace;
+
+    // We're going to overwrite the Image.ColorMap pointer next, so free it if not NULL first!
+    if (GifFile->Image.ColorMap != NULL) {
+        GifFreeMapObject(GifFile->Image.ColorMap);
+        GifFile->Image.ColorMap = NULL;
+    }
     if (ColorMap) {
         GifFile->Image.ColorMap = GifMakeMapObject(ColorMap->ColorCount,
                                                 ColorMap->Colors);