# https://sourceware.org/bugzilla/show_bug.cgi?id=20874
diff -rub a/resolv/gai_notify.c b/resolv/gai_notify.c
--- a/resolv/gai_notify.c	2013-08-10 17:52:55.000000000 -0500
+++ b/resolv/gai_notify.c	2018-10-25 07:59:19.244512224 -0500
@@ -104,7 +104,8 @@
   while (waitlist != NULL)
     {
       struct waitlist *next = waitlist->next;
-
+      if (waitlist->counterp) 
+      { 
       if (waitlist->sigevp == NULL)
 	{
 #ifdef DONT_NEED_GAI_MISC_COND
@@ -126,7 +127,7 @@
 	       this works.  */
 	    free ((void *) waitlist->counterp);
 	  }
-
+      }
       waitlist = next;
     }
 }
diff -rub a/resolv/gai_suspend.c b/resolv/gai_suspend.c
--- a/resolv/gai_suspend.c	2018-10-25 08:03:30.264356705 -0500
+++ b/resolv/gai_suspend.c	2018-10-25 07:58:23.292546039 -0500
@@ -39,6 +39,7 @@
   int none = 1;
   int result;
 
+  memset(&waitlist, 0, sizeof(waitlist));
   /* Request the mutex.  */
   pthread_mutex_lock (&__gai_requests_mutex);
 
diff -rub a/resolv/getaddrinfo_a.c b/resolv/getaddrinfo_a.c
--- a/resolv/getaddrinfo_a.c	2013-08-10 17:52:55.000000000 -0500
+++ b/resolv/getaddrinfo_a.c	2018-10-25 08:01:16.308440388 -0500
@@ -101,6 +101,7 @@
       struct waitlist waitlist[ent];
       int oldstate;
 
+      memset(&waitlist, 0, sizeof(waitlist));
       total = 0;
       for (cnt = 0; cnt < ent; ++cnt)
        if (requests[cnt] != NULL)
@@ -146,13 +146,14 @@
       struct async_waitlist *waitlist;
 
       waitlist = (struct async_waitlist *)
-	malloc (sizeof (struct async_waitlist)
+	calloc (1, sizeof (struct async_waitlist)
 		+ (ent * sizeof (struct waitlist)));
 
       if (waitlist == NULL)
 	result = EAI_AGAIN;
       else
 	{
+        
 	  pid_t caller_pid = sig->sigev_notify == SIGEV_SIGNAL ? getpid () : 0;
 	  total = 0;