[Bug 233955] net/wireguard Occassional hard reboot of FreeBSD 11.2-RELEASE-p6 when used together with setfib(1)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233955

            Bug ID: 233955
           Summary: net/wireguard Occassional hard reboot of FreeBSD
                    11.2-RELEASE-p6 when used together with setfib(1)
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: decke at FreeBSD.org
          Reporter: manas at bhatnagar.net.in
          Assignee: decke at FreeBSD.org
             Flags: maintainer-feedback?(decke at FreeBSD.org)

I have experienced multiple hard reboots of my FreeBSD 11.2-RELEASE system
which occurs when I try to deactivate a Wireguard interface with wg-quick.

This does not always occur, on occasion I am able to activate & deactivate all
interfaces without issue. I am unable to determine which specific conditions
cause the hard reboot.

After creating/configuring the appropriate keypairs & configuration files, a
new interface is created on a specific routing table with:

# setfib $FIB route add default $DEFAULTGATEWAY
# setfib $FIB wg-quick up wg$N

After the connection has been active for a short period, it is deactivated
with:

# setfib $FIB wg-quick down wg$N

The last few messages seen in debug.log prior to the reboot are of the form:

Dec 12 10:50:16 $hostname kernel: ifa_maintain_loopback_route: deletion failed
for interface wg0: 3

The configuration files are simple:

[Interface]
Address = ${PRIVATE_IP}/24
PrivateKey = $PRIVATEKEY
DNS = 127.0.0.1

[Peer]
PublicKey = $PUBLICKEY
Endpoint = ${PUBLIC_IP}:51820
AllowedIPs = 0.0.0.0/0
PersistentKeepalive = 30

-- 
You are receiving this mail because:
You are the assignee for the bug.