WSL2 mirrored networking unexpectedly killing connections

[peterbro1]

Windows Version

Microsoft Windows [Version 10.0.22635.3350]

WSL Version

2.1.5.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.146.1-2

Distro Version

Kali 2024.1 rolling

Other Software

No response

Repro Steps

1. Install kali-linux distro from microsoft store
2. Enable mirrored networking mode
3. On the kali machine, execute nc -nvlp 5050
4. In a separate terminal on the kali machine, execute nc 127.0.0.1 5050

Expected Behavior

Netcat is designed to create a TCP connection. When the commands are issued, the user on the second command is able to type into STDIN and that information gets sent to the recipient side

Actual Behavior

The connection is received on the recipient side, then immediately closed.

Diagnostic Logs

Client strace: https://gist.github.com/peterbro1/5de18e43f3260279adae9ee2486643ba
Server strace: https://gist.github.com/peterbro1/da519b52194614860be4a25f3190a7e1
WslNetworkingLogs-2024-03-14_19-21-31.zip
https://superuser.com/questions/1835183/ncat-inside-wsl2-not-behaving-correctly

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

Open similar issues:

• Networking mirrored can't work on WSL2 (#10632), similarity score: 0.83

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• Slow loopback in WSL2 with mirrored network (#11173), similarity score: 0.80
• wsl 2.0.0 proxy bug in networkingMode = mirrored network (#10517), similarity score: 0.80
• WSL2 Networking Breaks (#4810), similarity score: 0.80
• Wsl2 networking mode mirrored falling back to NAT (#11058), similarity score: 0.78

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[chanpreetdhanjal]

Please follow the networking diagnostic script. https://github.com/microsoft/WSL/blob/master/CONTRIBUTING.md#collect-wsl-logs-for-networking-issues

It should create a folder like [WslNetworkingLogs-date_ver.zip]

[peterbro1]

Hey @chanpreetdhanjal. The networking logs are attached in the initial issue comment!