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avcodec/av1_parse: Check obu_size

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Fixes: out of array read
Fixes: SIGSEGV_get_obu_bit_length_av1_parse

Found-by: keval shah <skeval65@gmail.com>
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-10-14 12:40:38 +02:00
parent f099946faf
commit c27c7b49dc
1 changed files with 2 additions and 2 deletions
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4
libavcodec/av1_parse.h
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@ -134,8 +134,8 @@ static inline int parse_obu_header(const uint8_t *buf, int buf_size,
size = *obu_size + *start_pos;
if (size > INT_MAX)
return AVERROR(ERANGE);
if (size > buf_size)
return AVERROR_INVALIDDATA;
return size;
}