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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-04 20:00:38 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-21 07:53:26 +0100 |
| commit | c694273feb813263122f121eae7c3c881cbf13ba (patch) | |
| tree | 537f15425ff16ed19c7c858867bb7bfe5d769fa9 | |
| parent | 9239d58b3653c876004b49995a8b698327f7cf87 (diff) | |
| download | ffmpeg-c694273feb813263122f121eae7c3c881cbf13ba.tar.gz | |
avcodec/h264_slice: Fix integer overflow in implicit_weight_table()
Fixes: signed integer overflow: 2 * 2132811760 cannot be represented in type 'int'
Fixes: 11156/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-6237685933408256
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 77e56d74f972537aecd5bc2c5c4111e1d6ad0963)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264_slice.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 2e158745a0..1c9a270fb6 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -678,7 +678,7 @@ static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, in cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1]; } if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) && - sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2 * cur_poc) { + sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) { sl->pwt.use_weight = 0; sl->pwt.use_weight_chroma = 0; return; |