Index: control.c

===================================================================

--- control.c.orig	2022-04-25 08:25:13 UTC

+++ control.c

@@ -775,6 +775,9 @@ control_start(struct client *c)

 	cs->read_event = bufferevent_new(c->fd, control_read_callback,

 	    control_write_callback, control_error_callback, c);

+	if (cs->read_event == NULL)

+		fatalx("out of memory");

+

 	bufferevent_enable(cs->read_event, EV_READ);

 	if (c->flags & CLIENT_CONTROLCONTROL)

@@ -782,6 +785,8 @@ control_start(struct client *c)

 	else {

 		cs->write_event = bufferevent_new(c->out_fd, NULL,

 		    control_write_callback, control_error_callback, c);

+		if (cs->write_event == NULL)

+			fatalx("out of memory");

 	}

 	bufferevent_setwatermark(cs->write_event, EV_WRITE, CONTROL_BUFFER_LOW,

 	    0);

--- file.c.orig	2022-04-25 08:25:13 UTC

+++ file.c

@@ -585,6 +585,8 @@ file_write_open(struct client_files *files, struct tmu

 	cf->event = bufferevent_new(cf->fd, NULL, file_write_callback,

 	    file_write_error_callback, cf);

+	if (cf->event == NULL)

+		fatalx("out of memory");

 	bufferevent_enable(cf->event, EV_WRITE);

 	goto reply;

@@ -744,6 +746,8 @@ file_read_open(struct client_files *files, struct tmux

 	cf->event = bufferevent_new(cf->fd, file_read_callback, NULL,

 	    file_read_error_callback, cf);

+	if (cf->event == NULL)

+		fatalx("out of memory");

 	bufferevent_enable(cf->event, EV_READ);

 	return;

--- window.c.orig	2022-04-25 08:25:14 UTC

+++ window.c

@@ -1042,6 +1042,8 @@ window_pane_set_event(struct window_pane *wp)

 	wp->event = bufferevent_new(wp->fd, window_pane_read_callback,

 	    NULL, window_pane_error_callback, wp);

+	if (wp->event == NULL)

+		fatalx("out of memory");

 	wp->ictx = input_init(wp, wp->event, &wp->palette);

 	bufferevent_enable(wp->event, EV_READ|EV_WRITE);

-