diff -up cups-1.4.3/scheduler/select.c.CVE-2010-0302 cups-1.4.3/scheduler/select.c

--- cups-1.4.3/scheduler/select.c.CVE-2010-0302	2010-01-14 23:40:19.000000000 +0100

+++ cups-1.4.3/scheduler/select.c	2010-03-31 13:54:30.000000000 +0200

@@ -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);

@@ -500,7 +501,8 @@ cupsdDoSelect(long timeout)		/* I - Time

 	  (*(fdptr->read_cb))(fdptr->data);

 	if (fdptr->use > 1 && fdptr->write_cb &&

-	    (event->events & (EPOLLOUT | EPOLLERR | EPOLLHUP)))

+	    (event->events & (EPOLLOUT | EPOLLERR | EPOLLHUP)) &&

+	    !cupsArrayFind(cupsd_inactive_fds, fdptr))

 	  (*(fdptr->write_cb))(fdptr->data);

 	release_fd(fdptr);