[FFmpeg-cvslog] avcodec/ivi: Check image dimensions

[Michael Niedermayer]

ffmpeg | branch: release/2.7 | Michael Niedermayer <michael at niedermayer.cc> | Sat Nov 14 02:36:22 2015 +0100| [b996cde19323756e647f3aa9c67c4ff2efe3a32d] | committer: Michael Niedermayer

avcodec/ivi: Check image dimensions

Fixes integer overflow
Fixes: 1e32c6c591d940337c20b197ec1c4d3d/asan_heap-oob_4a52e5_8946_0bb0d9e863def56005e49f1d89bdc94d.avi

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit df91aa034b82b77a3c4e01791f4a2b2ff6c82066)

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b996cde19323756e647f3aa9c67c4ff2efe3a32d
---

 libavcodec/ivi.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/ivi.c b/libavcodec/ivi.c
index 4525ff4..eab42bb 100644
--- a/libavcodec/ivi.c
+++ b/libavcodec/ivi.c
@@ -30,6 +30,7 @@
 
 #define BITSTREAM_READER_LE
 #include "libavutil/attributes.h"
+#include "libavutil/imgutils.h"
 #include "libavutil/timer.h"
 #include "avcodec.h"
 #include "get_bits.h"
@@ -310,7 +311,7 @@ av_cold int ff_ivi_init_planes(IVIPlaneDesc *planes, const IVIPicConfig *cfg,
 
     ivi_free_buffers(planes);
 
-    if (cfg->pic_width < 1 || cfg->pic_height < 1 ||
+    if (av_image_check_size(cfg->pic_width, cfg->pic_height, 0, NULL) < 0 ||
         cfg->luma_bands < 1 || cfg->chroma_bands < 1)
         return AVERROR_INVALIDDATA;