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qtrle: check for invalid line offset

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Laurent Aimar 2011-10-08 23:01:33 +02:00 committed by Michael Niedermayer
parent 6d45702f7f
commit a4ed7c3fe9
1 changed files with 2 additions and 0 deletions
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2
libavcodec/qtrle.c
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@ -464,6 +464,8 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
stream_ptr += 4;
height = AV_RB16(&s->buf[stream_ptr]);
stream_ptr += 4;
if (height > s->avctx->height - start_line)
goto done;
} else {
start_line = 0;
height = s->avctx->height;