[OE-core][dunfell][PATCH] ffmpeg: Fix CVE-2022-3109

[Bhabu Bindu <bindudaniel1996@gmail.com>]

From: Bhabu Bindu <bhabu.bindu@kpit.com>

Add patch to fix CVE-2022-3109

Link: https://github.com/FFmpeg/FFmpeg/commit/656cb0450aeb73b25d7d26980af342b37ac4c568

Signed-off-by: Bhabu Bindu <bhabu.bindu@kpit.com>
---
 .../ffmpeg/ffmpeg/CVE-2022-3109.patch         | 41 +++++++++++++++++++
 .../recipes-multimedia/ffmpeg/ffmpeg_4.2.2.bb |  1 +
 2 files changed, 42 insertions(+)
 create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2022-3109.patch

diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2022-3109.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2022-3109.patch
new file mode 100644
index 0000000000..febf49cff2
--- /dev/null
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2022-3109.patch
@@ -0,0 +1,41 @@
+From 656cb0450aeb73b25d7d26980af342b37ac4c568 Mon Sep 17 00:00:00 2001
+From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
+Date: Tue, 15 Feb 2022 17:58:08 +0800
+Subject: [PATCH] avcodec/vp3: Add missing check for av_malloc
+
+Since the av_malloc() may fail and return NULL pointer,
+it is needed that the 's->edge_emu_buffer' should be checked
+whether the new allocation is success.
+
+Fixes: d14723861b ("VP3: fix decoding of videos with stride > 2048")
+
+CVE: CVE-2022-3109
+Upstream-Status: Backport [https://github.com/FFmpeg/FFmpeg/commit/656cb0450aeb73b25d7d26980af342b37ac4c568]
+Comments: Refreshed hunk
+
+Reviewed-by: Peter Ross <pross@xvid.org>
+Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
+Signed-off-by: Bhabu Bindu <bhabu.bindu@kpit.com>
+---
+ libavcodec/vp3.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
+index e9ab54d73677..e2418eb6fa04 100644
+--- a/libavcodec/vp3.c
++++ b/libavcodec/vp3.c
+@@ -2740,8 +2740,13 @@
+     if (ff_thread_get_buffer(avctx, &s->current_frame, AV_GET_BUFFER_FLAG_REF) < 0)
+         goto error;
+ 
+-    if (!s->edge_emu_buffer)
++    if (!s->edge_emu_buffer) {
+         s->edge_emu_buffer = av_malloc(9 * FFABS(s->current_frame.f->linesize[0]));
++        if (!s->edge_emu_buffer) {
++            ret = AVERROR(ENOMEM);
++            goto error;
++        }
++    }
+ 
+     if (s->keyframe) {
+         if (!s->theora) {
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.2.2.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.2.2.bb
index cbfdbf0563..ffeec92e0e 100644
--- a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.2.2.bb
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.2.2.bb
@@ -30,6 +30,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
            file://CVE-2021-3566.patch \
            file://CVE-2021-38291.patch \
            file://CVE-2022-1475.patch \
+           file://CVE-2022-3109.patch \
           "
 SRC_URI[md5sum] = "348956fc2faa57a2f79bbb84ded9fbc3"
 SRC_URI[sha256sum] = "cb754255ab0ee2ea5f66f8850e1bd6ad5cac1cd855d0a2f4990fb8c668b0d29c"
-- 
2.17.1