When nbr->t_inactivity is not active, and you do a show json over the neighbor it will crash ospfd. Fix the code so it prints out -1 when the timer is inactive. Ticket:CM-13835 Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com> Reviewed-by: Don Slice <dslice@cumulusnetworks.com> Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com> (cherry picked from commit 78d8fcb9623ab4d9cebf6187a451448e056a84bf) --- ospfd/ospf_vty.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c index 43a4434..4eeb5c1 100644 --- a/ospfd/ospf_vty.c +++ b/ospfd/ospf_vty.c @@ -4590,10 +4590,15 @@ show_ip_ospf_neighbor_detail_sub (struct vty *vty, struct ospf_interface *oi, /* Show Router Dead interval timer. */ if (use_json) { - struct timeval res = tv_sub (nbr->t_inactivity->u.sands, recent_relative_time ()); - unsigned long time_store = 0; - time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000); - json_object_int_add(json_sub, "routerDeadIntervalTimerDueMsec", time_store); + if (nbr->t_inactivity) + { + struct timeval res = tv_sub (nbr->t_inactivity->u.sands, recent_relative_time ()); + unsigned long time_store = 0; + time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000); + json_object_int_add(json_sub, "routerDeadIntervalTimerDueMsec", time_store); + } + else + json_object_int_add(json_sub, "routerDeadIntervalTimerDueMsec", -1); } else vty_out (vty, " Dead timer due in %s%s", -- 2.5.5