[FFmpeg-cvslog] avutil/downmix_info: zero the allocated buffer

[James Almer]

ffmpeg | branch: release/7.1 | James Almer <jamrial at gmail.com> | Fri Dec 27 11:53:16 2024 -0300| [8a72775d5dba3253c4ffd9b7ec91f73beda42641] | committer: James Almer

avutil/downmix_info: zero the allocated buffer

Signed-off-by: James Almer <jamrial at gmail.com>
(cherry picked from commit 0bed1b89530042f0a835b8d1178aa52b40a751f6)
(cherry picked from commit a649b2a8313571fcec101143e9479299eb8bc214)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8a72775d5dba3253c4ffd9b7ec91f73beda42641
---

 libavutil/downmix_info.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavutil/downmix_info.c b/libavutil/downmix_info.c
index c634c6a79f..83771a3051 100644
--- a/libavutil/downmix_info.c
+++ b/libavutil/downmix_info.c
@@ -27,9 +27,12 @@ AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame)
 
     side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO);
 
-    if (!side_data)
+    if (!side_data) {
         side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_DOWNMIX_INFO,
                                            sizeof(AVDownmixInfo));
+        if (side_data)
+            memset(side_data->data, 0, sizeof(AVDownmixInfo))
+    }
 
     if (!side_data)
         return NULL;