diff --git a/CVE-2020-22044.patch b/CVE-2020-22044.patch
new file mode 100644
index 0000000000000000000000000000000000000000..53b9e0e5f6dd0097623ce02fa8ac6706dd9ef7f7
--- /dev/null
+++ b/CVE-2020-22044.patch
@@ -0,0 +1,29 @@
+From 1c6dc790f8dc0e76df39e974ba6ae434f6a5eda3 Mon Sep 17 00:00:00 2001
+From: James Almer <jamrial@gmail.com>
+Date: Thu, 3 Jul 2025 14:30:22 +0800
+Subject: [PATCH] avformat/nutenc: don't allocate a dynamic AVIOContext if no index is going to be...
+
+---
+ libavformat/nutenc.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
+index 2c2334a..632e08c 100644
+--- a/libavformat/nutenc.c
++++ b/libavformat/nutenc.c
+@@ -1171,8 +1171,11 @@ static int nut_write_trailer(AVFormatContext *s)
+     while (nut->header_count < 3)
+         write_headers(s, bc);
+ 
++    if (!nut->sp_count)
++       return 0;
++
+     ret = avio_open_dyn_buf(&dyn_bc);
+-    if (ret >= 0 && nut->sp_count) {
++    if (ret >= 0) {
+         av_assert1(nut->write_index); // sp_count should be 0 if no index is going to be written
+         write_index(nut, dyn_bc);
+         put_packet(nut, bc, dyn_bc, 1, INDEX_STARTCODE);
+-- 
+2.43.0
+
diff --git a/ffmpeg.spec b/ffmpeg.spec
index d4213b207c6143066e959f903949e7c5c4ed6f80..d1c2c7cc2c53ad9c04455f80326e4fad57436811 100644
--- a/ffmpeg.spec
+++ b/ffmpeg.spec
@@ -60,7 +60,7 @@
 Summary:        Digital VCR and streaming server
 Name:           ffmpeg%{?flavor}
 Version:        4.2.4
-Release:        22
+Release:        23
 License:        %{ffmpeg_license}
 URL:            http://ffmpeg.org/
 %if 0%{?date}
@@ -94,6 +94,7 @@ Patch22:        backport-CVE-2024-36616.patch
 Patch23:        backport-CVE-2024-36618.patch
 Patch24:        backport-CVE-2024-36617.patch
 Patch25:        backport-CVE-2024-36613.patch
+Patch26:        CVE-2020-22044.patch
 
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
 %{?_with_cuda:BuildRequires: cuda-minimal-build-%{_cuda_version_rpm} cuda-drivers-devel}
@@ -427,6 +428,9 @@ install -pm755 tools/qt-faststart %{buildroot}%{_bindir}
 
 
 %changelog
+* Thu Jul  3 2025 happyworker <208suo@208suo.com> - 4.2.4-23
+- fix CVE-2020-22044
+
 * Sun Jan 5 2025 changtao <changtao@kylinos.cn> - 4.2.4-22
 - Type: CVE
 - CVE: CVE-2024-36613