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avcodec/hevc: Check offset_len 

Fixes CID1239099 part 1

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-13 13:13:07 +02:00
parent 6d787aea96
commit 3e9d5e16ad
1 changed files with 7 additions and 0 deletions
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7
libavcodec/hevc.c
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@ -712,6 +712,13 @@ static int hls_slice_header(HEVCContext *s)
int offset_len = get_ue_golomb_long(gb) + 1;
int segments = offset_len >> 4;
int rest = (offset_len & 15);
if (offset_len < 1 || offset_len > 32) {
sh->num_entry_point_offsets = 0;
av_log(s->avctx, AV_LOG_ERROR, "offset_len %d is invalid\n", offset_len);
return AVERROR_INVALIDDATA;
}
av_freep(&sh->entry_point_offset);
av_freep(&sh->offset);
av_freep(&sh->size);