Comment 0 for bug 2015645

When I enable systemd in WSL2 (it became supported recently), install ufw, and run sudo ufw enable, I get the error detailed in https://superuser.com/questions/1775776/enabling-ufw-failed-with-ubuntu-from-wsl2. You may already be aware of this error, I'm not sure if "NotTheDr01ds" has talked to you about this yet. Note that the WSL2 /proc/[pid]/stat format, although weird, does comply with the spec: https://man7.org/linux/man-pages/man5/proc.5.html

I verified that you can fix this issue by replacing the first split in line 427 with rsplit(')', 1) so it splits based on the last parenthesis instead of the all parenthesis.

Before:
ppid = open(name).readlines()[0].split(')')[1].split()[1]
After:
ppid = open(name).readlines()[0].rsplit(')',1)[1].split()[1]

C:\Users\caleb>wsl --version
WSL version: 1.1.6.0
Kernel version: 5.15.90.1
WSLg version: 1.0.50
MSRDC version: 1.2.3770
Direct3D version: 1.608.2-61064218
DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows version: 10.0.19045.2728

➜ ufw git:(master) ufw --version
ufw 0.36
Copyright 2008-2015 Canonical Ltd.

➜ ufw git:(master) cat /proc/229/stat | cut -c -23
229 (Relay(230)) S 228