mirror of https://git.ffmpeg.org/ffmpeg.git
mpc8: check seektable size before attempting to use it.
Fixes null pointer dereference Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -145,6 +145,10 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
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av_log(s, AV_LOG_ERROR, "No seek table at given position\n");
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av_log(s, AV_LOG_ERROR, "No seek table at given position\n");
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return;
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return;
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}
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}
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if (size > INT_MAX/10 || size<=0) {
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av_log(s, AV_LOG_ERROR, "Seek table size is invalid\n");
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return;
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}
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if(!(buf = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE)))
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if(!(buf = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE)))
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return;
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return;
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avio_read(s->pb, buf, size);
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avio_read(s->pb, buf, size);
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