wsltty 3.7.6.2 and later exits immediately unless run as administrator

[yamam]

With wsltty versions 3.7.6.2 and 3.7.7, wsltty now exits immediately. It can run with WSL1, but for WSL2, it can only start when launched as an administrator.

When attempting to run wslbridge2.exe, the following error is displayed:

> .\wslbridge2.exe
failed to open the process, error: 5

[yamam]

I figured out how to reproduce the issue. If WSL2 is started with administrator privileges initially, an error occurs in the following part of wslbridge2 when there is no permission to obtain information about wslhost.exe:

    HANDLE process = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid);

Why does it not result in an error in wsltty 3.7.6?

[yamam]

Why does it not result in an error in wsltty 3.7.6?

In wsltty 3.7.6, obtaining the VMID from the registry did not require administrative privileges.

[mintty]

Thanks for the analysis.
@Biswa96 , is there any chance to tweak this so it works in all cases reported so far?

[Biswa96]

No idea 😔I do not use WSL anymore.

[yamam]

I have written the patch, so I will submit a pull request tomorrow.