From 8fccbbb02673bed71676412f1a313093a39c48ff Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Mon, 6 Dec 2021 10:08:42 +0000
Subject: [PATCH] Do not dereference NULL window when resizing client, GitHub
 issue 2982.

---
 resize.c | 2 ++
 tty.c    | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/resize.c b/resize.c
index 8416ad6a..175dd740 100644
--- a/resize.c
+++ b/resize.c
@@ -348,6 +348,8 @@ recalculate_size_skip_client(struct client *loop, __unused int type,
 	 * is not the current window - this is used for aggressive-resize.
 	 * Otherwise skip any session that doesn't contain the window.
 	 */
+	if (loop->session->curw == NULL)
+		return (1);
 	if (current)
 		return (loop->session->curw->window != w);
 	return (session_has(loop->session, w) == 0);
diff --git a/tty.c b/tty.c
index 233d52a8..a9678eaf 100644
--- a/tty.c
+++ b/tty.c
@@ -937,7 +937,9 @@ tty_update_window_offset(struct window *w)
 	struct client	*c;
 
 	TAILQ_FOREACH(c, &clients, entry) {
-		if (c->session != NULL && c->session->curw->window == w)
+		if (c->session != NULL &&
+		    c->session->curw != NULL &&
+		    c->session->curw->window == w)
 			tty_update_client_offset(c);
 	}
 }