System Information

OpenCV version: 4.5.4
Operating System / Platform: Ubuntu 22.04.3 LTS
Compiler & compiler version: g++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0

I also reproduced error on CV 4.6.0 on windows but the minimal example has been tested on Ubuntu with CV4.5.4.

Detailed description

Using cv::merge with NULL matrix is causing SIGILL.
I'm fully expecting a crash or any error but not a SIGILL as this leads to not executing the final stacktrace in our application.

Steps to reproduce

main.cpp:

#include <iostream>
#include <opencv2/opencv.hpp>

int main(int argc, char *argv[])
{   
    cv::Mat planes[4];
    cv::Mat mm;
    std::cout<< "hello there before"<<std::endl;
    cv::merge(planes,3,mm);
    std::cout<< "hello there after"<<std::endl;

    return 0;
}

compile with:

g++ -o your_program_name main.cpp `pkg-config opencv4 --cflags --libs`

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)