[bgp] Fix crash on SIGHUP, deref of freed workqueues
* lib/workqueue.c: free-ing workqueues had never been tested obviously,
queue's thread was not being stopped
* bgpd/bgpd.c: null out freed workqueues, to prevent acting on freed
workqueues
diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
index cebde0a..1712c71 100644
--- a/bgpd/bgpd.c
+++ b/bgpd/bgpd.c
@@ -5150,9 +5150,15 @@
BGP_NOTIFY_CEASE_PEER_UNCONFIG);
bgp_cleanup_routes ();
+
if (bm->process_main_queue)
- work_queue_free (bm->process_main_queue);
+ {
+ work_queue_free (bm->process_main_queue);
+ bm->process_main_queue = NULL;
+ }
if (bm->process_rsclient_queue)
- work_queue_free (bm->process_rsclient_queue);
+ {
+ work_queue_free (bm->process_rsclient_queue);
+ bm->process_rsclient_queue = NULL;
+ }
}
-