[Midnightbsd-cvs] src [9773] trunk/usr.sbin/rtadvd/rtadvd.c: fix occasional SIGSEGV when an interface was added.

[laffer1 at midnightbsd.org]

Revision: 9773
          http://svnweb.midnightbsd.org/src/?rev=9773
Author:   laffer1
Date:     2018-02-22 00:08:40 -0500 (Thu, 22 Feb 2018)
Log Message:
-----------
fix occasional SIGSEGV when an interface was added.

Modified Paths:
--------------
    trunk/usr.sbin/rtadvd/rtadvd.c

Modified: trunk/usr.sbin/rtadvd/rtadvd.c
===================================================================
--- trunk/usr.sbin/rtadvd/rtadvd.c	2018-02-22 05:07:15 UTC (rev 9772)
+++ trunk/usr.sbin/rtadvd/rtadvd.c	2018-02-22 05:08:40 UTC (rev 9773)
@@ -1008,6 +1008,8 @@
 	long delay;	/* must not be greater than 1000000 */
 	struct timeval interval, now, min_delay, tm_tmp, *rest;
 
+	if (ifi->ifi_ra_timer == NULL)
+		return;
 	/*
 	 * Compute a random delay. If the computed value
 	 * corresponds to a time later than the time the next