diff options
| author | Michael Niedermayer <[email protected]> | 2019-01-04 20:00:38 +0100 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2019-01-15 00:57:27 +0100 |
| commit | f4a9455e03a6712085ec1c56ccde015d728a7471 (patch) | |
| tree | 0a643822dd10425f79243f0c2ff7e49c0490bc4d | |
| parent | 9f92a1d02028f95f10e77c180deb49c475e361c4 (diff) | |
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 <[email protected]>
(cherry picked from commit 77e56d74f972537aecd5bc2c5c4111e1d6ad0963)
Signed-off-by: Michael Niedermayer <[email protected]>
| -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 1c56ad2ee9..cbdfa1b19b 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -682,7 +682,7 @@ 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; |