Kernel module backend on Android 11 ignores custom DNS entry

[Kai Fischer]

When using the official Wireguard app on Android 11 with kernel module 
backend , Wireguard ignores the DNS that I set  and routes DNS through 
my phone LTE/Wifi carrier internet DNS.  When using Userspace backend, 
the same config works fine and all DNS queries are routed properly.
Affected kernel module backend version: 1.0.20210219

Anyone noticed this?