diff --git a/0001-avfilter-af_stereowiden-Check-length.patch b/0001-avfilter-af_stereowiden-Check-length.patch
new file mode 100644
index 0000000..3d439ab
--- /dev/null
+++ b/0001-avfilter-af_stereowiden-Check-length.patch
@@ -0,0 +1,29 @@
+From 50f0f8c53c818f73fe2d752708e2fa9d2a2d8a07 Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Sat, 23 Dec 2023 04:03:01 +0100
+Subject: [PATCH] avfilter/af_stereowiden: Check length
+References: https://bugzilla.opensuse.org/1223437
+References: CVE-2023-51794
+
+Fixes: out of array access
+Fixes: tickets/10746/poc13ffmpeg
+
+Found-by: Zeng Yunxiang
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+---
+ libavfilter/af_stereowiden.c |    2 ++
+ 1 file changed, 2 insertions(+)
+
+Index: ffmpeg-4.4.4/libavfilter/af_stereowiden.c
+===================================================================
+--- ffmpeg-4.4.4.orig/libavfilter/af_stereowiden.c
++++ ffmpeg-4.4.4/libavfilter/af_stereowiden.c
+@@ -75,6 +75,8 @@ static int config_input(AVFilterLink *in
+ 
+     s->length = s->delay * inlink->sample_rate / 1000;
+     s->length *= 2;
++    if (s->length == 0)
++        return AVERROR(EINVAL);
+     s->buffer = av_calloc(s->length, sizeof(*s->buffer));
+     if (!s->buffer)
+         return AVERROR(ENOMEM);
diff --git a/ffmpeg-4.changes b/ffmpeg-4.changes
index 56964a3..20b5472 100644
--- a/ffmpeg-4.changes
+++ b/ffmpeg-4.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Apr 26 22:16:48 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Add 0001-avfilter-af_stereowiden-Check-length.patch
+  [boo#1223437, CVE-2023-51794]
+
 -------------------------------------------------------------------
 Thu Apr 23 16:14:18 UTC 2024 - Cliff Zhao <qzhao@suse.com>
 
diff --git a/ffmpeg-4.spec b/ffmpeg-4.spec
index c2695a0..b7b54ad 100644
--- a/ffmpeg-4.spec
+++ b/ffmpeg-4.spec
@@ -129,6 +129,7 @@ Patch15:        0001-avutil-hwcontext-Don-t-assume-frames_uninit-is-reent.patch
 Patch16:        0001-avfilter-vf_minterpolate-Check-pts-before-division.patch
 Patch17:        ffmpeg-CVE-2023-49502.patch
 Patch18:        ffmpeg-CVE-2023-51793.patch
+Patch19:        0001-avfilter-af_stereowiden-Check-length.patch
 BuildRequires:  ladspa-devel
 BuildRequires:  libgsm-devel
 BuildRequires:  libmp3lame-devel