diff -up cups-1.4.2/scheduler/select.c.CVE-2010-0302 cups-1.4.2/scheduler/select.c
--- cups-1.4.2/scheduler/select.c.CVE-2010-0302	2010-03-05 10:37:49.990476887 +0000
+++ cups-1.4.2/scheduler/select.c	2010-03-05 10:38:01.803478081 +0000
@@ -454,7 +454,8 @@ cupsdDoSelect(long timeout)		/* I - Time
     if (fdptr->read_cb && event->filter == EVFILT_READ)
       (*(fdptr->read_cb))(fdptr->data);
 
-    if (fdptr->use > 1 && fdptr->write_cb && event->filter == EVFILT_WRITE)
+    if (fdptr->use > 1 && fdptr->write_cb && event->filter == EVFILT_WRITE &&
+        !cupsArrayFind(cupsd_inactive_fds, fdptr))
       (*(fdptr->write_cb))(fdptr->data);
 
     release_fd(fdptr);
@@ -499,7 +500,9 @@ cupsdDoSelect(long timeout)		/* I - Time
 	if (fdptr->read_cb && (event->events & (EPOLLIN | EPOLLERR | EPOLLHUP)))
 	  (*(fdptr->read_cb))(fdptr->data);
 
-	if (fdptr->use > 1 && fdptr->write_cb && (event->events & (EPOLLOUT | EPOLLERR | EPOLLHUP)))
+	if (fdptr->use > 1 && fdptr->write_cb &&
+	    (event->events & (EPOLLOUT | EPOLLERR | EPOLLHUP)) &&
+	    !cupsArrayFind(cupsd_inactive_fds, fdptr))
 	  (*(fdptr->write_cb))(fdptr->data);
 
 	release_fd(fdptr);