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avcodec/hevc: check slice_header_extension data length

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-07-12 05:07:16 +02:00
parent c79acacd2e
commit 5d88e40093
1 changed files with 4 additions and 0 deletions
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4
libavcodec/hevc.c
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@ -708,6 +708,10 @@ static int hls_slice_header(HEVCContext *s)
if (s->pps->slice_header_extension_present_flag) {
unsigned int length = get_ue_golomb_long(gb);
if (length*8LL > get_bits_left(gb)) {
av_log(s->avctx, AV_LOG_ERROR, "too many slice_header_extension_data_bytes\n");
return AVERROR_INVALIDDATA;
}
for (i = 0; i < length; i++)
skip_bits(gb, 8); // slice_header_extension_data_byte
}