tor

commit 8b1380cbd08f40dc2abee171a390df6d04e999d1
parent 17236a58429dab6bf0536a64b90c4ec7f25985b8
Author: Nick Mathewson <nickm@torproject.org>
Date:   Mon,  7 May 2018 14:30:30 -0400

Don't crash when closing a connection before initializing libevent

Fixes bug 25981; bugfix on 96c5ac338a7df.  Bug not in any released
version of Tor.

Diffstat:
M
src/or/main.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/or/main.c b/src/or/main.c
@@ -1676,6 +1676,11 @@ static mainloop_event_t *postloop_cleanup_ev=NULL;
 void
 mainloop_schedule_postloop_cleanup(void)
 {
+  if (PREDICT_UNLIKELY(postloop_cleanup_ev == NULL)) {
+    // (It's possible that we can get here if we decide to close a connection
+    // in the earliest stages of our configuration, before we create events.)
+    return;
+  }
   mainloop_event_activate(postloop_cleanup_ev);
 }