[FFmpeg-devel] [PATCH 5/8] Check for out of bounds reads in the Delphine Software International CIN decoder.

[fenrir at elivagar.org]

From: Laurent Aimar <fenrir at videolan.org>

---
 libavcodec/dsicinav.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/libavcodec/dsicinav.c b/libavcodec/dsicinav.c
index 27f4204..691b597 100644
--- a/libavcodec/dsicinav.c
+++ b/libavcodec/dsicinav.c
@@ -217,6 +217,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
     bitmap_frame_size = buf_size - 4;
 
     /* handle palette */
+    if (bitmap_frame_size < palette_colors_count * (3 + (palette_type != 0)))
+        return AVERROR_INVALIDDATA;
     if (palette_type == 0) {
         for (i = 0; i < palette_colors_count; ++i) {
             cin->palette[i] = bytestream_get_le24(&buf);
-- 
1.7.2.5