From 8fee878fe277ec1b1b833ba6e5db679151f7982f Mon Sep 17 00:00:00 2001
From: Bram Moolenaar <Bram@vim.org>
Date: Tue, 11 Aug 2015 18:45:48 +0200
Subject: [PATCH] patch 7.4.820 Problem:    Invalid memory access in
 file_pat_to_reg_pat. Solution:   Avoid looking before the start of a string.
 (Dominique Pelle)

---
 src/fileio.c  | 2 +-
 src/version.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/fileio.c b/src/fileio.c
index 973e8ca0e..0f3f148b9 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -10210,7 +10210,7 @@ file_pat_to_reg_pat(pat, pat_end, allow_dirs, no_bslash)
     else
 	reg_pat[i++] = '^';
     endp = pat_end - 1;
-    if (*endp == '*')
+    if (endp >= pat && *endp == '*')
     {
 	while (endp - pat > 0 && *endp == '*')
 	    endp--;
diff --git a/src/version.c b/src/version.c
index e3b885ed3..f8ef512dd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    820,
 /**/
     819,
 /**/
-- 
2.50.1