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avcodec/av1_parse: check for OBU header overread
Signed-off-by: James Almer <jamrial@gmail.com>
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@ -118,6 +118,10 @@ static inline int parse_obu_header(const uint8_t *buf, int buf_size,
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*obu_size = has_size_flag ? leb128(&gb)
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*obu_size = has_size_flag ? leb128(&gb)
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: buf_size - 1 - extension_flag;
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: buf_size - 1 - extension_flag;
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if (get_bits_left(&gb) < 0)
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return AVERROR_INVALIDDATA;
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*start_pos = get_bits_count(&gb) / 8;
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*start_pos = get_bits_count(&gb) / 8;
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return 0;
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return 0;
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