[FFmpeg-cvslog] avfilter/af_alimiter: check if buffer_size is valid
Paul B Mahol
git at videolan.org
Wed Mar 7 22:39:31 EET 2018
ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Wed Mar 7 21:36:12 2018 +0100| [ea0963181a2cc8e42a0c58da96fb7fed5e857e5b] | committer: Paul B Mahol
avfilter/af_alimiter: check if buffer_size is valid
Fixes #7050.
Signed-off-by: Paul B Mahol <onemda at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ea0963181a2cc8e42a0c58da96fb7fed5e857e5b
---
libavfilter/af_alimiter.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavfilter/af_alimiter.c b/libavfilter/af_alimiter.c
index 0fc8e6baa3..c41e95576f 100644
--- a/libavfilter/af_alimiter.c
+++ b/libavfilter/af_alimiter.c
@@ -327,6 +327,11 @@ static int config_input(AVFilterLink *inlink)
s->buffer_size = inlink->sample_rate * s->attack * inlink->channels;
s->buffer_size -= s->buffer_size % inlink->channels;
+ if (s->buffer_size <= 0) {
+ av_log(ctx, AV_LOG_ERROR, "Attack is too small.\n");
+ return AVERROR(EINVAL);
+ }
+
return 0;
}
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