Changed to prevent decoder crash

The change prevent a decoder crash for invalid stream with negative
size.

Change-Id: I7411765f3524c783058fa3d436549be4e75d8969

diff --git a/vp9/decoder/vp9_decodeframe.c b/vp9/decoder/vp9_decodeframe.c
index d66ee27..fa680d9 100644 (file)
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -743,7 +743,7 @@ static void setup_frame_size_with_refs(VP9D_COMP *pbi,
   if (!found)
     read_frame_size(rb, &width, &height);
 
-  if (!width || !height)
+  if (width <= 0 || height <= 0)
     vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
                        "Referenced frame with invalid size");