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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-04 20:00:38 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-21 10:42:51 +0100 |
| commit | 5a9170345a29f191269aab4999fac69ce3aa2d29 (patch) | |
| tree | 9734c4d72fd4fbd6ea67a868f25e042c556fddd2 | |
| parent | 11e8ea4d0a8531f26af161a9893057ce1e5d6af3 (diff) | |
| download | ffmpeg-5a9170345a29f191269aab4999fac69ce3aa2d29.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 d71ddbe9ba..0790f32a43 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -671,7 +671,7 @@ 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; |