breakage in policy routing on 5.3 and 5.3.1

Jason A. Donenfeld Jason at
Tue Sep 24 10:47:51 CEST 2019

Hi folks,

FYI, upstream Linux broke aspects policy routing in 5.3. This isn't
specific to WireGuard, but rather the policy routing engine in
general, but users of the wg-quick(8) bash script for configuring
networks might run into this if they're routing a default route and
have IPv6, because the bash script makes use of policy routing.

I sent two patches upstream to fix bugs introduced with 5.3:

The latter one appears to mitigate the problem, as confirmed by Arch
Linux users:

I'll update this thread when we know more from the netdev mailing list.


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