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avformat/hevc: Check num_negative_pics and num_positive_pics

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Fixes CID1238994

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-12 19:28:15 +02:00
parent 2cddc0b19a
commit b62b3292d8
1 changed files with 3 additions and 0 deletions
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3
libavformat/hevc.c
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@ -462,6 +462,9 @@ static int parse_rps(GetBitContext *gb, unsigned int rps_idx,
unsigned int num_negative_pics = get_ue_golomb_long(gb);
unsigned int num_positive_pics = get_ue_golomb_long(gb);
if ((num_positive_pics + (uint64_t)num_negative_pics) * 2 > get_bits_left(gb))
return AVERROR_INVALIDDATA;
num_delta_pocs[rps_idx] = num_negative_pics + num_positive_pics;
for (i = 0; i < num_negative_pics; i++) {