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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-15 21:21:20 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-16 02:24:34 +0200 |
| commit | 8e6d9d48a0b4369d71815d104df32b067fe9bc60 (patch) | |
| tree | 5e9342108c6702976c36397da68edeab4becf054 | |
| parent | c521f9a5cd8cabaf985eb06f87e9b7f7ad5fcaf2 (diff) | |
| download | ffmpeg-8e6d9d48a0b4369d71815d104df32b067fe9bc60.tar.gz | |
avcodec/svq3: Fix runtime error: left shift of negative value -6
Fixes: 1604/clusterfuzz-testcase-minimized-5312060206350336
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a6eb006ad47beb6d5e5cc2c99f8185965209ec6b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/svq3.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index 0cea14edcb..01998652bb 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -524,8 +524,8 @@ static inline int svq3_mc_dir(SVQ3Context *s, int size, int mode, if (mode != PREDICT_MODE) { svq3_pred_motion(s, k, part_width >> 2, dir, 1, &mx, &my); } else { - mx = s->next_pic->motion_val[0][b_xy][0] << 1; - my = s->next_pic->motion_val[0][b_xy][1] << 1; + mx = s->next_pic->motion_val[0][b_xy][0] * 2; + my = s->next_pic->motion_val[0][b_xy][1] * 2; if (dir == 0) { mx = mx * s->frame_num_offset / |