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avcodec/h264_refs: Fix long_idx check

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Fixes out of array read
Fixes mozilla bug 1233606

Found-by: Tyson Smith
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b92b4775a0)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-19 21:59:42 +01:00
parent 75e4949ec1
commit a5b4b80775
1 changed files with 1 additions and 1 deletions
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2
libavcodec/h264_refs.c
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@ -283,7 +283,7 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h)
long_idx = pic_num_extract(h, pic_id, &pic_structure);
if (long_idx > 31) {
if (long_idx > 31U) {
av_log(h->avctx, AV_LOG_ERROR,
"long_term_pic_idx overflow\n");
return AVERROR_INVALIDDATA;