ffmpeg: fix CVE-2020-22033 and CVE-2020-22019

avfilter/vf_vmafmotion: Check dimensions

Fixes: out of array access
Fixes: Ticket8241
Fixes: Ticket8246
Fixes: CVE-2020-22019
Fixes: CVE-2020-22033

(From OE-Core rev: 451a945efb21221cfeeb4e641c5aa8bf4ae18c89)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

CVE: CVE-2020-22033
CVE: CVE-2020-22019
Upstream-Status: Backport [82ad1b76751bcfad5005440db48c46a4de5d6f02]

Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 41 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22033-CVE-2020-22019.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22033-CVE-2020-22019.patch
new file mode 100644
index 0000000000..5d979ca3f2
--- /dev/null
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/fix-CVE-2020-22033-CVE-2020-22019.patch
@@ -0,0 +1,40 @@
+From 82ad1b76751bcfad5005440db48c46a4de5d6f02 Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Sat, 29 May 2021 09:58:31 +0200
+Subject: [PATCH] avfilter/vf_vmafmotion: Check dimensions
+
+Fixes: out of array access
+Fixes: Ticket8241
+Fixes: Ticket8246
+Fixes: CVE-2020-22019
+Fixes: CVE-2020-22033
+
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+
+
+CVE: CVE-2020-22033
+CVE: CVE-2020-22019
+Upstream-Status: Backport [82ad1b76751bcfad5005440db48c46a4de5d6f02]
+
+Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com>
+---
+ libavfilter/vf_vmafmotion.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/libavfilter/vf_vmafmotion.c b/libavfilter/vf_vmafmotion.c
+index 2db4783d8d..454ebb8afa 100644
+--- a/libavfilter/vf_vmafmotion.c
++++ b/libavfilter/vf_vmafmotion.c
+@@ -238,6 +238,9 @@ int ff_vmafmotion_init(VMAFMotionData *s,
+     int i;
+     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
+ 
++    if (w < 3 || h < 3)
++        return AVERROR(EINVAL);
++
+     s->width = w;
+     s->height = h;
+     s->stride = FFALIGN(w * sizeof(uint16_t), 32);
+-- 
+2.32.0
+
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.4.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.4.bb
index f1b3c027e3..70b1513048 100644
--- a/meta/recipes-multimedia/ffmpeg/ffmpeg_4.4.bb
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_4.4.bb
@@ -29,6 +29,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
            file://fix-CVE-2020-20453.patch \
            file://fix-CVE-2020-22015.patch \
            file://fix-CVE-2020-22021.patch \
+           file://fix-CVE-2020-22033-CVE-2020-22019.patch \
            "
 SRC_URI[sha256sum] = "06b10a183ce5371f915c6bb15b7b1fffbe046e8275099c96affc29e17645d909"