From 581b2bcde0b49bd5e3931beea4c6a677bf549ed5 Mon Sep 17 00:00:00 2001
From: erw7 <erw7.github@gmail.com>
Date: Thu, 1 Apr 2021 20:46:12 +0900
Subject: screen: fix problem with p_ch

When the screen is resized, p_ch is not re-set to the appropriate value.
As a result, access to invalid addresses was occurring.
---
 src/nvim/screen.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/nvim/screen.c b/src/nvim/screen.c
index 1e20b77c5c..384636f705 100644
--- a/src/nvim/screen.c
+++ b/src/nvim/screen.c
@@ -7507,6 +7507,10 @@ void screen_resize(int width, int height)
   Rows = height;
   Columns = width;
   check_shellsize();
+  int max_p_ch = Rows - min_rows() + 1;
+  if (!ui_has(kUIMessages) && p_ch > max_p_ch) {
+    p_ch = max_p_ch ? max_p_ch : 1;
+  }
   height = Rows;
   width = Columns;
   p_lines = Rows;
-- 
cgit