From: David Ahern <[email protected]>
Date: Tue, 7 Jul 2020 07:39:24 -0600
> Thomas reported a regression with IPv6 and anycast using the following
> reproducer:
>
> echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
> ip -6 a add fc12::1/16 dev lo
> sleep 2
> echo "pinging lo"
> ping6 -c 2 fc12::
>
> The conversion of addrconf_f6i_alloc to use ip6_route_info_create missed
> the use of fib6_is_reject which checks addresses added to the loopback
> interface and sets the REJECT flag as needed. Update fib6_is_reject for
> loopback checks to handle RTF_ANYCAST addresses.
>
> Fixes: c7a1ce397ada ("ipv6: Change addrconf_f6i_alloc to use
> ip6_route_info_create")
> Reported-by: [email protected]
> Signed-off-by: David Ahern <[email protected]>
Applied, and queued up for -stable, thanks David.
