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dsicinav: Check for out of bounds writes

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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
(cherry picked from commit 172060328771d149b076f00352b004b5b5272d38)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Laurent Aimar 2011-09-29 23:13:35 +00:00 committed by Reinhard Tartler
parent d57d039e04
commit aa9e308580
1 changed files with 2 additions and 0 deletions
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2
libavcodec/dsicinav.c
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@ -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;