From: Laurent Aimar <fenrir@videolan.org>
Date: Thu, 29 Sep 2011 23:13:35 +0000 (+0000)
Subject: dsicinav: Check for out of bounds writes
X-Git-Tag: v0.8b1~1273
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=172060328771d149b076f00352b004b5b5272d38;p=platform%2Fupstream%2Flibav.git

dsicinav: Check for out of bounds writes

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
---

diff --git a/libavcodec/dsicinav.c b/libavcodec/dsicinav.c
index 5fe99ba..3b545e7 100644
--- a/libavcodec/dsicinav.c
+++ b/libavcodec/dsicinav.c
@@ -219,6 +219,8 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
     if (bitmap_frame_size < palette_colors_count * (3 + (palette_type != 0)))
         return AVERROR_INVALIDDATA;
     if (palette_type == 0) {
+        if (palette_colors_count > 256)
+            return AVERROR_INVALIDDATA;
         for (i = 0; i < palette_colors_count; ++i) {
             cin->palette[i] = bytestream_get_le24(&buf);
             bitmap_frame_size -= 3;