commit 1748c7f77ea864c669b7e5cfb2be0c34ce45e36e
author Bram Moolenaar <Bram@vim.org> Sat Jun 08 16:55:15 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jun 08 16:55:15 2019 +0200
tree f591c6ed6a72288b625dc30123cc42eeffbe65d9
parent 6c009a39744b49393464567266a3fa3562f08ee2

patch 8.1.1495: memory access error

Problem:    Memory access error.
Solution:   Use the correct size for clearing the popup mask.

src/screen.c

diff --git a/src/screen.c b/src/screen.c
index fb10853..512560b 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -9345,7 +9345,7 @@
     TabPageIdxs = new_TabPageIdxs;
 #ifdef FEAT_TEXT_PROP
     popup_mask = new_popup_mask;
-    vim_memset(popup_mask, 0, screen_Rows * screen_Columns * sizeof(short));
+    vim_memset(popup_mask, 0, Rows * Columns * sizeof(short));
     popup_mask_refresh = TRUE;
 #endif