Ensure fds are closed when exec functions are used.
When usng shm_open, FD_CLOEXEC is set explicitly.
However when using memfd_create, we must pass the MFD_CLOEXEC flag to ensure the same fcntl value (FD_CLOEXEC) is set.
Fixes #1394 (closed)
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When usng shm_open, FD_CLOEXEC is set explicitly.
However when using memfd_create, we must pass the MFD_CLOEXEC flag to ensure the same fcntl value (FD_CLOEXEC) is set.
Fixes #1394 (closed)