The patches in master already have proper git headers and they are all a bit different due to different opencv version, so the devtool refresh in master looks like this:
https://git.openembedded.org/meta-openembedded-contrib/commit/?h=jansa/master&id=8188c9b49166566e6e48153c395d54aa3f51ebc3
which imho isn't worth merging.

On Sun, Mar 21, 2021 at 10:22 PM Khem Raj <raj.khem@gmail.com> wrote:
maybe this should be done on master too so backport are easy

On Sun, Mar 21, 2021 at 1:15 AM Martin Jansa <Martin.Jansa@gmail.com> wrote:
>
> * fixes:
> WARNING: opencv-4.1.0-r0 do_patch: Fuzz detected:
>
> Applying patch CVE-2019-14491.patch
> patching file modules/objdetect/src/cascadedetect.cpp
> Hunk #1 succeeded at 46 with fuzz 1 (offset -1 lines).
> Hunk #2 succeeded at 540 (offset -1 lines).
> Hunk #3 succeeded at 552 (offset -1 lines).
> Hunk #4 succeeded at 613 (offset -1 lines).
> Hunk #5 succeeded at 774 (offset -1 lines).
> Hunk #6 succeeded at 825 (offset -1 lines).
> Hunk #7 succeeded at 1470 (offset -36 lines).
> patching file modules/objdetect/src/cascadedetect.hpp
>
> The context lines in the patches can be updated with devtool:
>
>     devtool modify opencv
>     devtool finish --force-patch-refresh opencv <layer_path>
>
> Don't forget to review changes done by devtool!
>
> WARNING: opencv-4.1.0-r0 do_patch: QA Issue: Patch log indicates that patches do not apply cleanly. [patch-fuzz]
>
> Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
> ---
>  ...dparty-ippicv-Use-pre-downloaded-ipp.patch |   4 +-
>  .../opencv/opencv/0001-Dont-use-isystem.patch |   4 +-
>  ...-around-deprecated-ffmpeg-RAW-functi.patch |   4 +-
>  ...-ipcp-unit-growth-with-ipa-cp-unit-g.patch |   9 +-
>  ...reate-share-library-intead-of-static.patch |   4 +-
>  .../0003-To-fix-errors-as-following.patch     |   8 +-
>  .../opencv/opencv/CVE-2019-14491.patch        |  56 +++++-----
>  .../opencv/opencv/CVE-2019-14493.patch        | 104 +++++++++---------
>  .../opencv/opencv/CVE-2019-15939.patch        |  20 ++--
>  .../opencv/opencv/CVE-2019-19624.patch        |  22 ++--
>  .../opencv/opencv/download.patch              |   9 ++
>  11 files changed, 126 insertions(+), 118 deletions(-)
>
> diff --git a/meta-oe/recipes-support/opencv/opencv/0001-3rdparty-ippicv-Use-pre-downloaded-ipp.patch b/meta-oe/recipes-support/opencv/opencv/0001-3rdparty-ippicv-Use-pre-downloaded-ipp.patch
> index 5f909c1a8f..896d6ce9dc 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0001-3rdparty-ippicv-Use-pre-downloaded-ipp.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0001-3rdparty-ippicv-Use-pre-downloaded-ipp.patch
> @@ -1,4 +1,4 @@
> -From 85b882b4ceb57fe6538f47af58d0a970923fde0e Mon Sep 17 00:00:00 2001
> +From 806de12b95a69572fffea8eb49b4ec3fb722b65f Mon Sep 17 00:00:00 2001
>  From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
>  Date: Thu, 31 Mar 2016 00:20:15 +0200
>  Subject: [PATCH] 3rdparty/ippicv: Use pre-downloaded ipp
> @@ -11,7 +11,7 @@ Signed-off-by: Ismo Puustinen <ismo.puustinen@intel.com>
>   1 file changed, 1 insertion(+), 14 deletions(-)
>
>  diff --git a/3rdparty/ippicv/ippicv.cmake b/3rdparty/ippicv/ippicv.cmake
> -index ae8748c..305abdb 100644
> +index ae8748c283..305abdb58d 100644
>  --- a/3rdparty/ippicv/ippicv.cmake
>  +++ b/3rdparty/ippicv/ippicv.cmake
>  @@ -39,18 +39,5 @@ function(download_ippicv root_var)
> diff --git a/meta-oe/recipes-support/opencv/opencv/0001-Dont-use-isystem.patch b/meta-oe/recipes-support/opencv/opencv/0001-Dont-use-isystem.patch
> index 40d3f53e1a..a899b7e9a4 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0001-Dont-use-isystem.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0001-Dont-use-isystem.patch
> @@ -1,4 +1,4 @@
> -From 9659f5a1e75fc29c9879c301767bba72ecf9042a Mon Sep 17 00:00:00 2001
> +From b34a6e8d4582aa13ad4cd58547d8e0f0a0f1c6a6 Mon Sep 17 00:00:00 2001
>  From: Khem Raj <raj.khem@gmail.com>
>  Date: Tue, 11 Sep 2018 00:21:18 -0700
>  Subject: [PATCH] Dont use isystem
> @@ -14,7 +14,7 @@ Signed-off-by: Khem Raj <raj.khem@gmail.com>
>   1 file changed, 2 insertions(+)
>
>  diff --git a/cmake/OpenCVPCHSupport.cmake b/cmake/OpenCVPCHSupport.cmake
> -index 59bc826..055dfce 100644
> +index 59bc826ed0..055dfce251 100644
>  --- a/cmake/OpenCVPCHSupport.cmake
>  +++ b/cmake/OpenCVPCHSupport.cmake
>  @@ -18,6 +18,8 @@ IF(CV_GCC)
> diff --git a/meta-oe/recipes-support/opencv/opencv/0001-Temporarliy-work-around-deprecated-ffmpeg-RAW-functi.patch b/meta-oe/recipes-support/opencv/opencv/0001-Temporarliy-work-around-deprecated-ffmpeg-RAW-functi.patch
> index f8ccd1d558..26041e09fb 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0001-Temporarliy-work-around-deprecated-ffmpeg-RAW-functi.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0001-Temporarliy-work-around-deprecated-ffmpeg-RAW-functi.patch
> @@ -1,4 +1,4 @@
> -From fe27d0e2341683606704115949d16250e4cacbfa Mon Sep 17 00:00:00 2001
> +From 23425e45f6e26f2b1e387b88e104872b3a1ea5d1 Mon Sep 17 00:00:00 2001
>  From: Jason Wessel <jason.wessel@windriver.com>
>  Date: Wed, 9 May 2018 13:33:59 -0700
>  Subject: [PATCH] Temporarliy work around deprecated ffmpeg RAW function
> @@ -11,7 +11,7 @@ Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
>   1 file changed, 8 insertions(+)
>
>  diff --git a/modules/videoio/src/cap_ffmpeg_impl.hpp b/modules/videoio/src/cap_ffmpeg_impl.hpp
> -index 0d360ad..566df66 100644
> +index 0d360ad5d9..566df6664b 100644
>  --- a/modules/videoio/src/cap_ffmpeg_impl.hpp
>  +++ b/modules/videoio/src/cap_ffmpeg_impl.hpp
>  @@ -736,6 +736,14 @@ struct ImplMutex::Impl
> diff --git a/meta-oe/recipes-support/opencv/opencv/0001-carotene-Replace-ipcp-unit-growth-with-ipa-cp-unit-g.patch b/meta-oe/recipes-support/opencv/opencv/0001-carotene-Replace-ipcp-unit-growth-with-ipa-cp-unit-g.patch
> index 43d32fbc75..df5bd67460 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0001-carotene-Replace-ipcp-unit-growth-with-ipa-cp-unit-g.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0001-carotene-Replace-ipcp-unit-growth-with-ipa-cp-unit-g.patch
> @@ -1,13 +1,15 @@
> -From 1edc925ecd7fb54d2dc78452069084475fbe2a70 Mon Sep 17 00:00:00 2001
> +From d9bdafa95f329f33d829d89a2e51adaf833768cc Mon Sep 17 00:00:00 2001
>  From: Khem Raj <raj.khem@gmail.com>
>  Date: Thu, 16 Jan 2020 08:52:00 -0800
> -Subject: [PATCH] carotene: Replace ipcp-unit-growth with ipa-cp-unit-growth on gcc >= 10
> +Subject: [PATCH] carotene: Replace ipcp-unit-growth with ipa-cp-unit-growth on
> + gcc >= 10
>
>  gcc 10+ has renamed this option, therefore check for gcc version before
>  deciding which name to use for opt parameter
>
>  Upstream-Status: Submitted [https://github.com/opencv/opencv/pull/16369]
>  Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +
>  ---
>   3rdparty/carotene/CMakeLists.txt     | 8 ++++++--
>   3rdparty/carotene/hal/CMakeLists.txt | 7 ++++++-
> @@ -50,6 +52,3 @@ index c4b9acaedd..bbc5b11a80 100644
>   #    set_source_files_properties(impl.cpp $<TARGET_OBJECTS:carotene_objs> COMPILE_FLAGS "--param ipcp-unit-growth=100000 --param inline-unit-growth=100000 --param large-stack-frame-growth=5000")
>     endif()
>
> ---
> -2.25.0
> -
> diff --git a/meta-oe/recipes-support/opencv/opencv/0002-Make-opencv-ts-create-share-library-intead-of-static.patch b/meta-oe/recipes-support/opencv/opencv/0002-Make-opencv-ts-create-share-library-intead-of-static.patch
> index 46198fb7be..3dd63829e5 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0002-Make-opencv-ts-create-share-library-intead-of-static.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0002-Make-opencv-ts-create-share-library-intead-of-static.patch
> @@ -1,4 +1,4 @@
> -From 46ffa1f8f443b71673774fcb864eb741bbc26200 Mon Sep 17 00:00:00 2001
> +From 6a490df70aadc43ed4f503452c278e334716826d Mon Sep 17 00:00:00 2001
>  From: Bian Naimeng <biannm@cn.fujitsu.com>
>  Date: Wed, 19 Apr 2017 03:11:37 +0900
>  Subject: [PATCH] Make opencv-ts create share library intead of static.
> @@ -10,7 +10,7 @@ Signed-off-by: Lei Maohui <leimaohui@cn.fujitsu.com>
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
>  diff --git a/modules/ts/CMakeLists.txt b/modules/ts/CMakeLists.txt
> -index f95bed0..ee67858 100644
> +index f95bed0793..ee67858df8 100644
>  --- a/modules/ts/CMakeLists.txt
>  +++ b/modules/ts/CMakeLists.txt
>  @@ -4,7 +4,7 @@ if(NOT BUILD_opencv_ts AND NOT BUILD_TESTS AND NOT BUILD_PERF_TESTS)
> diff --git a/meta-oe/recipes-support/opencv/opencv/0003-To-fix-errors-as-following.patch b/meta-oe/recipes-support/opencv/opencv/0003-To-fix-errors-as-following.patch
> index 336c2e08e6..77571ead98 100644
> --- a/meta-oe/recipes-support/opencv/opencv/0003-To-fix-errors-as-following.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/0003-To-fix-errors-as-following.patch
> @@ -1,4 +1,4 @@
> -From 867caccc358266f7021f076fc8c8e41bf048782c Mon Sep 17 00:00:00 2001
> +From b3dc5478cb0d2d2b617dc6c5e28d59559edadf36 Mon Sep 17 00:00:00 2001
>  From: Huang Qiyu <huangqy.fnst@cn.fujitsu.com>
>  Date: Fri, 19 May 2017 04:27:50 +0900
>  Subject: [PATCH] To fix errors as following:
> @@ -21,7 +21,7 @@ Signed-off-by: Ismo Puustinen <ismo.puustinen@intel.com>
>   3 files changed, 4 insertions(+), 4 deletions(-)
>
>  diff --git a/modules/ts/include/opencv2/ts.hpp b/modules/ts/include/opencv2/ts.hpp
> -index b9d6b74..f1ee7ee 100644
> +index b9d6b74ffc..f1ee7ee429 100644
>  --- a/modules/ts/include/opencv2/ts.hpp
>  +++ b/modules/ts/include/opencv2/ts.hpp
>  @@ -622,7 +622,7 @@ protected:
> @@ -43,7 +43,7 @@ index b9d6b74..f1ee7ee 100644
>   #define CV_TEST_INIT0_NOOP (void)0
>
>  diff --git a/modules/ts/include/opencv2/ts/ocl_test.hpp b/modules/ts/include/opencv2/ts/ocl_test.hpp
> -index 11572e9..438112e 100644
> +index 11572e9f48..438112e2aa 100644
>  --- a/modules/ts/include/opencv2/ts/ocl_test.hpp
>  +++ b/modules/ts/include/opencv2/ts/ocl_test.hpp
>  @@ -82,7 +82,7 @@ inline UMat ToUMat(InputArray src)
> @@ -56,7 +56,7 @@ index 11572e9..438112e 100644
>   #define MAX_VALUE 357
>
>  diff --git a/modules/ts/include/opencv2/ts/ts_ext.hpp b/modules/ts/include/opencv2/ts/ts_ext.hpp
> -index b5cea3e..e5b0b4b 100644
> +index b5cea3e46d..e5b0b4ba8c 100644
>  --- a/modules/ts/include/opencv2/ts/ts_ext.hpp
>  +++ b/modules/ts/include/opencv2/ts/ts_ext.hpp
>  @@ -9,7 +9,7 @@
> diff --git a/meta-oe/recipes-support/opencv/opencv/CVE-2019-14491.patch b/meta-oe/recipes-support/opencv/opencv/CVE-2019-14491.patch
> index 656000a8e1..54a553fb38 100644
> --- a/meta-oe/recipes-support/opencv/opencv/CVE-2019-14491.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/CVE-2019-14491.patch
> @@ -1,4 +1,4 @@
> -From 321c74ccd6077bdea1d47450ca4fe955cb5b6330 Mon Sep 17 00:00:00 2001
> +From 5a9628c134a7314e10ea0bcc4e789c935251a7f5 Mon Sep 17 00:00:00 2001
>  From: Alexander Alekhin <alexander.alekhin@intel.com>
>  Date: Thu, 25 Jul 2019 17:15:59 +0300
>  Subject: [PATCH] objdetect: validate feature rectangle on reading
> @@ -9,39 +9,40 @@ Upstream-Status: Backport [https://github.com/opencv/opencv/commit/ac425f67e4c1d
>  Comment: No changes in any hunk
>
>  Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
> +
>  ---
>   modules/objdetect/src/cascadedetect.cpp | 43 +++++++++++++++++++++----
>   modules/objdetect/src/cascadedetect.hpp |  6 ++--
>   2 files changed, 40 insertions(+), 9 deletions(-)
>
>  diff --git a/modules/objdetect/src/cascadedetect.cpp b/modules/objdetect/src/cascadedetect.cpp
> -index 4b2078306fe..bd62cd21a1b 100644
> +index a1865e9062..b7ef04ea7b 100644
>  --- a/modules/objdetect/src/cascadedetect.cpp
>  +++ b/modules/objdetect/src/cascadedetect.cpp
> -@@ -47,6 +47,10 @@
> - #include "opencv2/objdetect/objdetect_c.h"
> +@@ -46,6 +46,10 @@
> + #include "cascadedetect.hpp"
>   #include "opencl_kernels_objdetect.hpp"
> -
> +
>  +#if defined(_MSC_VER)
>  +#  pragma warning(disable:4458)  // declaration of 'origWinSize' hides class member
>  +#endif
>  +
>   namespace cv
>   {
> -
> -@@ -537,7 +541,7 @@ bool FeatureEvaluator::setImage( InputArray _image, const std::vector<float>& _s
> -
> +
> +@@ -536,7 +540,7 @@ bool FeatureEvaluator::setImage( InputArray _image, const std::vector<float>& _s
> +
>   //----------------------------------------------  HaarEvaluator ---------------------------------------
> -
> +
>  -bool HaarEvaluator::Feature :: read( const FileNode& node )
>  +bool HaarEvaluator::Feature::read(const FileNode& node, const Size& origWinSize)
>   {
>       FileNode rnode = node[CC_RECTS];
>       FileNodeIterator it = rnode.begin(), it_end = rnode.end();
> -@@ -549,11 +553,23 @@ bool HaarEvaluator::Feature :: read( const FileNode& node )
> +@@ -548,11 +552,23 @@ bool HaarEvaluator::Feature :: read( const FileNode& node )
>           rect[ri].weight = 0.f;
>       }
> -
> +
>  +    const int W = origWinSize.width;
>  +    const int H = origWinSize.height;
>  +
> @@ -62,10 +63,10 @@ index 4b2078306fe..bd62cd21a1b 100644
>  +            CV_CheckLE(rw.r.y + rw.r.height, H, "Invalid HAAR feature");
>  +        }
>       }
> -
> +
>       tilted = (int)node[CC_TILTED] != 0;
> -@@ -598,7 +614,7 @@ bool HaarEvaluator::read(const FileNode& node, Size _origWinSize)
> -
> +@@ -597,7 +613,7 @@ bool HaarEvaluator::read(const FileNode& node, Size _origWinSize)
> +
>       for(i = 0; i < n; i++, ++it)
>       {
>  -        if(!ff[i].read(*it))
> @@ -73,9 +74,9 @@ index 4b2078306fe..bd62cd21a1b 100644
>               return false;
>           if( ff[i].tilted )
>               hasTiltedFeatures = true;
> -@@ -759,11 +775,24 @@ int HaarEvaluator::getSquaresOffset() const
> +@@ -758,11 +774,24 @@ int HaarEvaluator::getSquaresOffset() const
>   }
> -
> +
>   //----------------------------------------------  LBPEvaluator -------------------------------------
>  -bool LBPEvaluator::Feature :: read(const FileNode& node )
>  +bool LBPEvaluator::Feature::read(const FileNode& node, const Size& origWinSize)
> @@ -98,8 +99,8 @@ index 4b2078306fe..bd62cd21a1b 100644
>  +
>       return true;
>   }
> -
> -@@ -797,7 +826,7 @@ bool LBPEvaluator::read( const FileNode& node, Size _origWinSize )
> +
> +@@ -796,7 +825,7 @@ bool LBPEvaluator::read( const FileNode& node, Size _origWinSize )
>       std::vector<Feature>& ff = *features;
>       for(int i = 0; it != it_end; ++it, i++)
>       {
> @@ -108,41 +109,40 @@ index 4b2078306fe..bd62cd21a1b 100644
>               return false;
>       }
>       nchannels = 1;
> -@@ -1477,6 +1506,8 @@ bool CascadeClassifierImpl::Data::read(const FileNode &root)
> +@@ -1441,6 +1470,8 @@ bool CascadeClassifierImpl::Data::read(const FileNode &root)
>       origWinSize.width = (int)root[CC_WIDTH];
>       origWinSize.height = (int)root[CC_HEIGHT];
>       CV_Assert( origWinSize.height > 0 && origWinSize.width > 0 );
>  +    CV_CheckLE(origWinSize.width, 1000000, "Invalid window size (too large)");
>  +    CV_CheckLE(origWinSize.height, 1000000, "Invalid window size (too large)");
> -
> +
>       // load feature params
>       FileNode fn = root[CC_FEATURE_PARAMS];
>  diff --git a/modules/objdetect/src/cascadedetect.hpp b/modules/objdetect/src/cascadedetect.hpp
> -index f9910530b94..d9a288fcdda 100644
> +index a011ed4804..ffc03af841 100644
>  --- a/modules/objdetect/src/cascadedetect.hpp
>  +++ b/modules/objdetect/src/cascadedetect.hpp
> -@@ -317,12 +317,12 @@ class HaarEvaluator CV_FINAL : public FeatureEvaluator
> +@@ -317,12 +317,12 @@ public:
>       struct Feature
>       {
>           Feature();
>  -        bool read( const FileNode& node );
>  +        bool read(const FileNode& node, const Size& origWinSize);
> -
> +
>           bool tilted;
> -
> +
>           enum { RECT_NUM = 3 };
>  -        struct
>  +        struct RectWeigth
>           {
>               Rect r;
>               float weight;
> -@@ -412,7 +412,7 @@ class LBPEvaluator CV_FINAL : public FeatureEvaluator
> +@@ -412,7 +412,7 @@ public:
>           Feature( int x, int y, int _block_w, int _block_h  ) :
>                    rect(x, y, _block_w, _block_h) {}
> -
> +
>  -        bool read(const FileNode& node );
>  +        bool read(const FileNode& node, const Size& origWinSize);
> -
> +
>           Rect rect; // weight and height for block
>       };
> -
> diff --git a/meta-oe/recipes-support/opencv/opencv/CVE-2019-14493.patch b/meta-oe/recipes-support/opencv/opencv/CVE-2019-14493.patch
> index 2b5e06f23f..37be12b500 100644
> --- a/meta-oe/recipes-support/opencv/opencv/CVE-2019-14493.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/CVE-2019-14493.patch
> @@ -1,4 +1,4 @@
> -From 5691d998ead1d9b0542bcfced36c2dceb3a59023 Mon Sep 17 00:00:00 2001
> +From 0d88c87ed94e89af490c3d882597e034422aa4a5 Mon Sep 17 00:00:00 2001
>  From: Alexander Alekhin <alexander.alekhin@intel.com>
>  Date: Thu, 25 Jul 2019 15:14:22 +0300
>  Subject: [PATCH] core(persistence): added null ptr checks
> @@ -8,6 +8,7 @@ Upstream-Status: Backport [https://github.com/opencv/opencv/commit/5691d998ead1d
>  Comment: No changes in any hunk
>
>  Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
> +
>  ---
>   modules/core/src/persistence_json.cpp | 12 ++++++++++++
>   modules/core/src/persistence_xml.cpp  | 21 +++++++++++++++++++++
> @@ -15,11 +16,11 @@ Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
>   3 files changed, 54 insertions(+)
>
>  diff --git a/modules/core/src/persistence_json.cpp b/modules/core/src/persistence_json.cpp
> -index ae678e1b8b1..89914e6534f 100644
> +index ae678e1b8b..89914e6534 100644
>  --- a/modules/core/src/persistence_json.cpp
>  +++ b/modules/core/src/persistence_json.cpp
> -@@ -296,6 +296,8 @@ class JSONParser : public FileStorageParser
> -
> +@@ -296,6 +296,8 @@ public:
> +
>           while ( is_eof == false && is_completed == false )
>           {
>  +            if (!ptr)
> @@ -27,7 +28,7 @@ index ae678e1b8b1..89914e6534f 100644
>               switch ( *ptr )
>               {
>                   /* comment */
> -@@ -381,6 +383,7 @@ class JSONParser : public FileStorageParser
> +@@ -381,6 +383,7 @@ public:
>           if ( is_eof || !is_completed )
>           {
>               ptr = fs->bufferStart();
> @@ -35,8 +36,8 @@ index ae678e1b8b1..89914e6534f 100644
>               *ptr = '\0';
>               fs->setEof();
>               if( !is_completed )
> -@@ -392,6 +395,9 @@ class JSONParser : public FileStorageParser
> -
> +@@ -392,6 +395,9 @@ public:
> +
>       char* parseKey( char* ptr, FileNode& collection, FileNode& value_placeholder )
>       {
>  +        if (!ptr)
> @@ -44,9 +45,9 @@ index ae678e1b8b1..89914e6534f 100644
>  +
>           if( *ptr != '"' )
>               CV_PARSE_ERROR_CPP( "Key must start with \'\"\'" );
> -
> -@@ -430,6 +436,9 @@ class JSONParser : public FileStorageParser
> -
> +
> +@@ -430,6 +436,9 @@ public:
> +
>       char* parseValue( char* ptr, FileNode& node )
>       {
>  +        if (!ptr)
> @@ -55,8 +56,8 @@ index ae678e1b8b1..89914e6534f 100644
>           ptr = skipSpaces( ptr );
>           if( !ptr || !*ptr )
>               CV_PARSE_ERROR_CPP( "Unexpected End-Of-File" );
> -@@ -817,6 +826,9 @@ class JSONParser : public FileStorageParser
> -
> +@@ -817,6 +826,9 @@ public:
> +
>       bool parse( char* ptr )
>       {
>  +        if (!ptr)
> @@ -66,21 +67,21 @@ index ae678e1b8b1..89914e6534f 100644
>           if ( !ptr || !*ptr )
>               return false;
>  diff --git a/modules/core/src/persistence_xml.cpp b/modules/core/src/persistence_xml.cpp
> -index fb30d90896e..89876dd3da8 100644
> +index fb30d90896..89876dd3da 100644
>  --- a/modules/core/src/persistence_xml.cpp
>  +++ b/modules/core/src/persistence_xml.cpp
> -@@ -360,6 +360,9 @@ class XMLParser : public FileStorageParser
> -
> +@@ -360,6 +360,9 @@ public:
> +
>       char* skipSpaces( char* ptr, int mode )
>       {
>  +        if (!ptr)
>  +            CV_PARSE_ERROR_CPP("Invalid input");
>  +
>           int level = 0;
> -
> +
>           for(;;)
> -@@ -441,6 +444,9 @@ class XMLParser : public FileStorageParser
> -
> +@@ -441,6 +444,9 @@ public:
> +
>       char* parseValue( char* ptr, FileNode& node )
>       {
>  +        if (!ptr)
> @@ -89,7 +90,7 @@ index fb30d90896e..89876dd3da8 100644
>           FileNode new_elem;
>           bool have_space = true;
>           int value_type = node.type();
> -@@ -456,6 +462,8 @@ class XMLParser : public FileStorageParser
> +@@ -456,6 +462,8 @@ public:
>                   (c == '<' && ptr[1] == '!' && ptr[2] == '-') )
>               {
>                   ptr = skipSpaces( ptr, 0 );
> @@ -98,16 +99,16 @@ index fb30d90896e..89876dd3da8 100644
>                   have_space = true;
>                   c = *ptr;
>               }
> -@@ -502,6 +510,8 @@ class XMLParser : public FileStorageParser
> +@@ -502,6 +510,8 @@ public:
>                   {
>                       ptr = fs->parseBase64( ptr, 0, new_elem);
>                       ptr = skipSpaces( ptr, 0 );
>  +                    if (!ptr)
>  +                        CV_PARSE_ERROR_CPP("Invalid input");
>                   }
> -
> +
>                   ptr = parseTag( ptr, key2, type_name, tag_type );
> -@@ -645,6 +655,9 @@ class XMLParser : public FileStorageParser
> +@@ -645,6 +655,9 @@ public:
>       char* parseTag( char* ptr, std::string& tag_name,
>                       std::string& type_name, int& tag_type )
>       {
> @@ -116,8 +117,8 @@ index fb30d90896e..89876dd3da8 100644
>  +
>           if( *ptr == '\0' )
>               CV_PARSE_ERROR_CPP( "Unexpected end of the stream" );
> -
> -@@ -702,6 +715,8 @@ class XMLParser : public FileStorageParser
> +
> +@@ -702,6 +715,8 @@ public:
>                   if( *ptr != '=' )
>                   {
>                       ptr = skipSpaces( ptr, CV_XML_INSIDE_TAG );
> @@ -126,7 +127,7 @@ index fb30d90896e..89876dd3da8 100644
>                       if( *ptr != '=' )
>                           CV_PARSE_ERROR_CPP( "Attribute name should be followed by \'=\'" );
>                   }
> -@@ -740,6 +755,8 @@ class XMLParser : public FileStorageParser
> +@@ -740,6 +755,8 @@ public:
>               if( c != '>' )
>               {
>                   ptr = skipSpaces( ptr, CV_XML_INSIDE_TAG );
> @@ -134,31 +135,31 @@ index fb30d90896e..89876dd3da8 100644
>  +                    CV_PARSE_ERROR_CPP("Invalid input");
>                   c = *ptr;
>               }
> -
> -@@ -781,6 +798,8 @@ class XMLParser : public FileStorageParser
> -
> +
> +@@ -781,6 +798,8 @@ public:
> +
>           // CV_XML_INSIDE_TAG is used to prohibit leading comments
>           ptr = skipSpaces( ptr, CV_XML_INSIDE_TAG );
>  +        if (!ptr)
>  +            CV_PARSE_ERROR_CPP("Invalid input");
> -
> +
>           if( memcmp( ptr, "<?xml", 5 ) != 0 )  // FIXIT ptr[1..] - out of bounds read without check
>               CV_PARSE_ERROR_CPP( "Valid XML should start with \'<?xml ...?>\'" );
> -@@ -791,6 +810,8 @@ class XMLParser : public FileStorageParser
> +@@ -791,6 +810,8 @@ public:
>           while( ptr && *ptr != '\0' )
>           {
>               ptr = skipSpaces( ptr, 0 );
>  +            if (!ptr)
>  +                CV_PARSE_ERROR_CPP("Invalid input");
> -
> +
>               if( *ptr != '\0' )
>               {
>  diff --git a/modules/core/src/persistence_yml.cpp b/modules/core/src/persistence_yml.cpp
> -index 4129ca1dc57..7742e827701 100644
> +index 4129ca1dc5..7742e82770 100644
>  --- a/modules/core/src/persistence_yml.cpp
>  +++ b/modules/core/src/persistence_yml.cpp
> -@@ -330,6 +330,9 @@ class YAMLParser : public FileStorageParser
> -
> +@@ -330,6 +330,9 @@ public:
> +
>       char* skipSpaces( char* ptr, int min_indent, int max_comment_indent )
>       {
>  +        if (!ptr)
> @@ -167,8 +168,8 @@ index 4129ca1dc57..7742e827701 100644
>           for(;;)
>           {
>               while( *ptr == ' ' )
> -@@ -374,6 +377,9 @@ class YAMLParser : public FileStorageParser
> -
> +@@ -374,6 +377,9 @@ public:
> +
>       bool getBase64Row(char* ptr, int indent, char* &beg, char* &end)
>       {
>  +        if (!ptr)
> @@ -177,8 +178,8 @@ index 4129ca1dc57..7742e827701 100644
>           beg = end = ptr = skipSpaces(ptr, 0, INT_MAX);
>           if (!ptr || !*ptr)
>               return false; // end of file
> -@@ -394,6 +400,9 @@ class YAMLParser : public FileStorageParser
> -
> +@@ -394,6 +400,9 @@ public:
> +
>       char* parseKey( char* ptr, FileNode& map_node, FileNode& value_placeholder )
>       {
>  +        if (!ptr)
> @@ -186,9 +187,9 @@ index 4129ca1dc57..7742e827701 100644
>  +
>           char c;
>           char *endptr = ptr - 1, *saveptr;
> -
> -@@ -422,6 +431,9 @@ class YAMLParser : public FileStorageParser
> -
> +
> +@@ -422,6 +431,9 @@ public:
> +
>       char* parseValue( char* ptr, FileNode& node, int min_indent, bool is_parent_flow )
>       {
>  +        if (!ptr)
> @@ -197,35 +198,35 @@ index 4129ca1dc57..7742e827701 100644
>           char* endptr = 0;
>           char c = ptr[0], d = ptr[1];
>           int value_type = FileNode::NONE;
> -@@ -508,6 +520,8 @@ class YAMLParser : public FileStorageParser
> -
> +@@ -508,6 +520,8 @@ public:
> +
>               *endptr = d;
>               ptr = skipSpaces( endptr, min_indent, INT_MAX );
>  +            if (!ptr)
>  +                CV_PARSE_ERROR_CPP("Invalid input");
> -
> +
>               c = *ptr;
> -
> -@@ -634,6 +648,8 @@ class YAMLParser : public FileStorageParser
> +
> +@@ -634,6 +648,8 @@ public:
>                   FileNode elem;
> -
> +
>                   ptr = skipSpaces( ptr, new_min_indent, INT_MAX );
>  +                if (!ptr)
>  +                    CV_PARSE_ERROR_CPP("Invalid input");
>                   if( *ptr == '}' || *ptr == ']' )
>                   {
>                       if( *ptr != d )
> -@@ -647,6 +663,8 @@ class YAMLParser : public FileStorageParser
> +@@ -647,6 +663,8 @@ public:
>                       if( *ptr != ',' )
>                           CV_PARSE_ERROR_CPP( "Missing , between the elements" );
>                       ptr = skipSpaces( ptr + 1, new_min_indent, INT_MAX );
>  +                    if (!ptr)
>  +                        CV_PARSE_ERROR_CPP("Invalid input");
>                   }
> -
> +
>                   if( struct_type == FileNode::MAP )
> -@@ -746,6 +764,9 @@ class YAMLParser : public FileStorageParser
> -
> +@@ -746,6 +764,9 @@ public:
> +
>       bool parse( char* ptr )
>       {
>  +        if (!ptr)
> @@ -234,4 +235,3 @@ index 4129ca1dc57..7742e827701 100644
>           bool first = true;
>           bool ok = true;
>           FileNode root_collection(fs->getFS(), 0, 0);
> -
> diff --git a/meta-oe/recipes-support/opencv/opencv/CVE-2019-15939.patch b/meta-oe/recipes-support/opencv/opencv/CVE-2019-15939.patch
> index e9f8514cbe..ad61d7c231 100644
> --- a/meta-oe/recipes-support/opencv/opencv/CVE-2019-15939.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/CVE-2019-15939.patch
> @@ -1,4 +1,4 @@
> -From 5a497077f109d543ab86dfdf8add1c76c0e47d29 Mon Sep 17 00:00:00 2001
> +From 384c5fa5f09aec5512343340fe65ccaaf83dfc48 Mon Sep 17 00:00:00 2001
>  From: Alexander Alekhin <alexander.alekhin@intel.com>
>  Date: Fri, 23 Aug 2019 16:14:53 +0300
>  Subject: [PATCH] objdetect: add input check in HOG detector
> @@ -8,24 +8,25 @@ Upstream-Status: Backport [https://github.com/opencv/opencv/commit/5a497077f109d
>  Comment: No changes in any hunk
>
>  Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
> +
>  ---
>   modules/objdetect/src/hog.cpp | 19 ++++++++++++-------
>   1 file changed, 12 insertions(+), 7 deletions(-)
>
>  diff --git a/modules/objdetect/src/hog.cpp b/modules/objdetect/src/hog.cpp
> -index 9524851eebb..378bab30876 100644
> +index e3e43bb86e..af814658fe 100644
>  --- a/modules/objdetect/src/hog.cpp
>  +++ b/modules/objdetect/src/hog.cpp
> -@@ -68,6 +68,7 @@ enum {DESCR_FORMAT_COL_BY_COL, DESCR_FORMAT_ROW_BY_ROW};
> -
> +@@ -65,6 +65,7 @@ namespace cv
> +
>   static int numPartsWithin(int size, int part_size, int stride)
>   {
>  +    CV_Assert(stride != 0);
>       return (size - part_size + stride) / stride;
>   }
> -
> -@@ -80,13 +81,17 @@ static Size numPartsWithin(cv::Size size, cv::Size part_size,
> -
> +
> +@@ -77,13 +78,17 @@ static Size numPartsWithin(cv::Size size, cv::Size part_size,
> +
>   static size_t getBlockHistogramSize(Size block_size, Size cell_size, int nbins)
>   {
>  +    CV_Assert(!cell_size.empty());
> @@ -34,7 +35,7 @@ index 9524851eebb..378bab30876 100644
>  +                                block_size.height / cell_size.height);
>       return (size_t)(nbins * cells_per_block.area());
>   }
> -
> +
>   size_t HOGDescriptor::getDescriptorSize() const
>   {
>  +    CV_Assert(!cellSize.empty());
> @@ -43,7 +44,7 @@ index 9524851eebb..378bab30876 100644
>       CV_Assert(blockSize.width % cellSize.width == 0 &&
>           blockSize.height % cellSize.height == 0);
>       CV_Assert((winSize.width - blockSize.width) % blockStride.width == 0 &&
> -@@ -144,20 +149,20 @@ bool HOGDescriptor::read(FileNode& obj)
> +@@ -141,20 +146,20 @@ bool HOGDescriptor::read(FileNode& obj)
>       if( !obj.isMap() )
>           return false;
>       FileNodeIterator it = obj["winSize"].begin();
> @@ -70,4 +71,3 @@ index 9524851eebb..378bab30876 100644
>       if (obj["signedGradient"].empty())
>           signedGradient = false;
>       else
> -
> diff --git a/meta-oe/recipes-support/opencv/opencv/CVE-2019-19624.patch b/meta-oe/recipes-support/opencv/opencv/CVE-2019-19624.patch
> index 79f8514bdd..3510e1eb98 100644
> --- a/meta-oe/recipes-support/opencv/opencv/CVE-2019-19624.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/CVE-2019-19624.patch
> @@ -1,4 +1,4 @@
> -From d1615ba11a93062b1429fce9f0f638d1572d3418 Mon Sep 17 00:00:00 2001
> +From 34195a57528a3f2c807bc3eeb8c934b8ea8289bd Mon Sep 17 00:00:00 2001
>  From: Thang Tran <TranKimThang279@gmail.com>
>  Date: Mon, 27 May 2019 08:18:26 +0200
>  Subject: [PATCH] video:fixed DISOpticalFlow segfault from small img
> @@ -8,13 +8,14 @@ Upstream-Status: Backport [https://github.com/opencv/opencv/commit/d1615ba11a930
>  Comment: No changes in any hunk
>
>  Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
> +
>  ---
>   modules/video/src/dis_flow.cpp          | 67 ++++++++++++++++++++++++-
>   modules/video/test/test_OF_accuracy.cpp | 28 +++++++++++
>   2 files changed, 93 insertions(+), 2 deletions(-)
>
>  diff --git a/modules/video/src/dis_flow.cpp b/modules/video/src/dis_flow.cpp
> -index a453d8b2b51..806d6f1ddaf 100644
> +index b86df1564b..adafcc92d8 100644
>  --- a/modules/video/src/dis_flow.cpp
>  +++ b/modules/video/src/dis_flow.cpp
>  @@ -140,6 +140,8 @@ class DISOpticalFlowImpl CV_FINAL : public DISOpticalFlow
> @@ -23,13 +24,13 @@ index a453d8b2b51..806d6f1ddaf 100644
>                                      Mat &I0y);
>  +    int autoSelectCoarsestScale(int img_width);
>  +    void autoSelectPatchSizeAndScales(int img_width);
> -
> +
>       struct PatchInverseSearch_ParBody : public ParallelLoopBody
>       {
>  @@ -435,6 +437,44 @@ void DISOpticalFlowImpl::precomputeStructureTensor(Mat &dst_I0xx, Mat &dst_I0yy,
>       }
>   }
> -
> +
>  +int DISOpticalFlowImpl::autoSelectCoarsestScale(int img_width)
>  +{
>  +    const int fratio = 5;
> @@ -71,14 +72,14 @@ index a453d8b2b51..806d6f1ddaf 100644
>   DISOpticalFlowImpl::PatchInverseSearch_ParBody::PatchInverseSearch_ParBody(DISOpticalFlowImpl &_dis, int _nstripes,
>                                                                              int _hs, Mat &dst_Sx, Mat &dst_Sy,
>                                                                              Mat &src_Ux, Mat &src_Uy, Mat &_I0, Mat &_I1,
> -@@ -1318,9 +1358,20 @@ bool DISOpticalFlowImpl::ocl_calc(InputArray I0, InputArray I1, InputOutputArray
> +@@ -1313,9 +1353,20 @@ bool DISOpticalFlowImpl::ocl_calc(InputArray I0, InputArray I1, InputOutputArray
>       else
>           flow.create(I1Mat.size(), CV_32FC2);
>       UMat &u_flowMat = flow.getUMatRef();
>  -    coarsest_scale = min((int)(log(max(I0Mat.cols, I0Mat.rows) / (4.0 * patch_size)) / log(2.0) + 0.5), /* Original code serach for maximal movement of width/4 */
>  +    coarsest_scale = min((int)(log(max(I0Mat.cols, I0Mat.rows) / (4.0 * patch_size)) / log(2.0) + 0.5), /* Original code search for maximal movement of width/4 */
>                            (int)(log(min(I0Mat.cols, I0Mat.rows) / patch_size) / log(2.0)));              /* Deepest pyramid level greater or equal than patch*/
> -
> +
>  +    if (coarsest_scale<0)
>  +        CV_Error(cv::Error::StsBadSize, "The input image must have either width or height >= 12");
>  +
> @@ -93,7 +94,7 @@ index a453d8b2b51..806d6f1ddaf 100644
>       ocl_prepareBuffers(I0Mat, I1Mat, u_flowMat, use_input_flow);
>       u_Ux[coarsest_scale].setTo(0.0f);
>       u_Uy[coarsest_scale].setTo(0.0f);
> -@@ -1385,8 +1436,20 @@ void DISOpticalFlowImpl::calc(InputArray I0, InputArray I1, InputOutputArray flo
> +@@ -1380,8 +1431,20 @@ void DISOpticalFlowImpl::calc(InputArray I0, InputArray I1, InputOutputArray flo
>       else
>           flow.create(I1Mat.size(), CV_32FC2);
>       Mat flowMat = flow.getMat();
> @@ -113,16 +114,16 @@ index a453d8b2b51..806d6f1ddaf 100644
>  +    }
>  +
>       int num_stripes = getNumThreads();
> -
> +
>       prepareBuffers(I0Mat, I1Mat, flowMat, use_input_flow);
>  diff --git a/modules/video/test/test_OF_accuracy.cpp b/modules/video/test/test_OF_accuracy.cpp
> -index affbab65866..b99ffce2a8b 100644
> +index affbab6586..b99ffce2a8 100644
>  --- a/modules/video/test/test_OF_accuracy.cpp
>  +++ b/modules/video/test/test_OF_accuracy.cpp
>  @@ -121,6 +121,34 @@ TEST(DenseOpticalFlow_DIS, ReferenceAccuracy)
>       }
>   }
> -
> +
>  +TEST(DenseOpticalFlow_DIS, InvalidImgSize_CoarsestLevelLessThanZero)
>  +{
>  +    cv::Ptr<cv::DISOpticalFlow> of = cv::DISOpticalFlow::create();
> @@ -154,4 +155,3 @@ index affbab65866..b99ffce2a8b 100644
>   TEST(DenseOpticalFlow_VariationalRefinement, ReferenceAccuracy)
>   {
>       Mat frame1, frame2, GT;
> -
> diff --git a/meta-oe/recipes-support/opencv/opencv/download.patch b/meta-oe/recipes-support/opencv/opencv/download.patch
> index fa8db88078..ae01a5edcd 100644
> --- a/meta-oe/recipes-support/opencv/opencv/download.patch
> +++ b/meta-oe/recipes-support/opencv/opencv/download.patch
> @@ -1,3 +1,8 @@
> +From 3b1a69503dea2075d51655a0cea5369c88a67632 Mon Sep 17 00:00:00 2001
> +From: Ross Burton <ross.burton@intel.com>
> +Date: Thu, 9 Jan 2020 16:24:24 +0000
> +Subject: [PATCH] opencv: abort configure if we need to download
> +
>  This CMake module will download files during do_configure.  This is bad as it
>  means we can't do offline builds.
>
> @@ -6,6 +11,10 @@ Add an option to disallow downloads by emitting a fatal error.
>  Upstream-Status: Pending
>  Signed-off-by: Ross Burton <ross.burton@intel.com>
>
> +---
> + cmake/OpenCVDownload.cmake | 6 ++++++
> + 1 file changed, 6 insertions(+)
> +
>  diff --git a/cmake/OpenCVDownload.cmake b/cmake/OpenCVDownload.cmake
>  index cdc47ad2cb..74573f45a2 100644
>  --- a/cmake/OpenCVDownload.cmake
> --
> 2.30.2
>
>
>
>