diff options
| author | Michael Niedermayer <[email protected]> | 2021-02-19 21:43:45 +0100 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-04-01 11:38:44 +0200 |
| commit | f8fc6416b22abf06a0a624a845c17300aa140c43 (patch) | |
| tree | 061e35f7068854e5b7e2ae4c06837dacc531ece6 | |
| parent | 18bcfa81fc15a3cfdcadf52bdbeb8ce23d2f913a (diff) | |
avfilter/vf_scale: Fix adding 0 to NULL (which is UB) in scale_slice()
Found-by: Jeremy Leconte <[email protected]>
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 1cf96ce269364e3c2b4ec2097f121ad42b336839)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavfilter/vf_scale.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c index 58eee96744..5ad9334d02 100644 --- a/libavfilter/vf_scale.c +++ b/libavfilter/vf_scale.c @@ -635,8 +635,8 @@ static int scale_slice(AVFilterLink *link, AVFrame *out_buf, AVFrame *cur_pic, s int vsub= ((i+1)&2) ? scale->vsub : 0; in_stride[i] = cur_pic->linesize[i] * mul; out_stride[i] = out_buf->linesize[i] * mul; - in[i] = cur_pic->data[i] + ((y>>vsub)+field) * cur_pic->linesize[i]; - out[i] = out_buf->data[i] + field * out_buf->linesize[i]; + in[i] = FF_PTR_ADD(cur_pic->data[i], ((y>>vsub)+field) * cur_pic->linesize[i]); + out[i] = FF_PTR_ADD(out_buf->data[i], field * out_buf->linesize[i]); } if (scale->input_is_pal) in[1] = cur_pic->data[1]; |