Bird 1.4.5 add-path crash

30 Jun 2015

      Hello,

I'm seeing Bird 1.4.5 crash with a segmentation fault when receiving
routes from a peer with add-path enabled.

BIRD config:

protocol bgp {
        direct;
        description "Juniper";
        local as 65065;
        neighbor a:b:c:a as 65065;
        add paths rx;
        gateway direct;
        import none;
        export none;
}

The other side is a Juniper BGP speaker (JunOS 12.3R7), with the
following config:

neighbor a:b:c:d {
    family inet6 {
        unicast {
            add-path {
                send {
                    path-count 2;
                }
            }
        }
    }
    peer-as 65065;
}

Session establishment completes, but when the Juniper sends routes Bird
crashes. I can provide a core dump and pcap trace if needed.

Kind regards,

Martin Pels
CDN Network Engineer
LeaseWeb Technologies B.V.

T: +31 20 316 0232
M: 
E: m.pels@tech.leaseweb.com
W: http://www.leaseweb.com

Luttenbergweg 8, 1101 EC Amsterdam, Netherlands