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avcodec/hevcdec: Check nb_sps

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bc40674462)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-15 01:28:28 +02:00
parent 7c82082ac8
commit f19152559f
1 changed files with 2 additions and 0 deletions
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libavcodec/hevc.c
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@ -246,6 +246,8 @@ static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
nb_sps = get_ue_golomb_long(gb);
nb_sh = get_ue_golomb_long(gb);
if (nb_sps > sps->num_long_term_ref_pics_sps)
return AVERROR_INVALIDDATA;
if (nb_sh + (uint64_t)nb_sps > FF_ARRAY_ELEMS(rps->poc))
return AVERROR_INVALIDDATA;