Steps to Reproduce

You can have a look at the issue we've already filed some time back in Dart SDK, it was fixed there: dart-lang/sdk#38141

Or you can reproduce it yourself, using package objectbox

1. Run flutter config --enable-linux-desktop
2. Run flutter create bug.
3. Update the files as follows:

   • add objectbox: 0.10.0 and objectbox_flutter_libs: any dependencies

   • you'll need to install libobjectbox.so: bash <(curl -s https://raw.githubusercontent.com/objectbox/objectbox-dart/main/install.sh) or get it from this conan package on Bintray if you don't want to run the shell script

   • Replace main.dart with the following code (everything before class MyApp declaration)

     import 'package:flutter/material.dart';
     import 'package:objectbox/src/bindings/bindings.dart';
     import 'package:objectbox/src/bindings/helpers.dart';
     import 'dart:ffi' as ffi;
     
     void main() {
     runApp(MyApp());
     
     bindings.obx_store_open(ffi.nullptr);
     print(latestNativeError());
     }

4. run as a native Linux (desktop) app

I've also prepared a ready project reproducing this, just check it out and install ObjectBox native lib. Or see the latest commit to see the changes I've described above.

• https://github.com/vaind/flutter-ffi-crash
• bash <(curl -s https://raw.githubusercontent.com/objectbox/objectbox-dart/main/install.sh)

Expected results:
This works on platforms other than Linux:
Console prints: ObjectBoxException: 10002 Argument "opt" must not be null (L53)

Actual results:
App crashes immediately (segfault), see coredumpctl info -1