diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 48a8199..ed63d44 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1276,6 +1276,11 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
 
 	update_attr(vc);
 
+	if (end > vc->vc_origin + old_row_size * old_rows) {
+		printk(KERN_INFO "end=%lx vc->vc_origin=%lx old_row_size=%u old_rows=%u new_row_size=%u new_rows=%u first_copied_row=%u vc->vc_cols=%u vc->vc_y=%u",
+		       end, vc->vc_origin, old_row_size, old_rows, new_row_size, new_rows, first_copied_row, vc->vc_cols, vc->vc_y);
+		BUG();
+	}
 	while (old_origin < end) {
 		scr_memcpyw((unsigned short *) new_origin,
 			    (unsigned short *) old_origin, rlth);