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oggparsevorbis: fix null ptr dereference
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -203,12 +203,12 @@ vorbis_header (AVFormatContext * s, int idx)
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int pkt_type = os->buf[os->pstart];
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if (!(pkt_type & 1))
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return 0;
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return os->private ? 0 : -1;
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if (!os->private) {
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os->private = av_mallocz(sizeof(struct oggvorbis_private));
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if (!os->private)
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return 0;
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return -1;
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}
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if (os->psize < 1 || pkt_type > 5)
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