# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1439311548 -7200
# Node ID bb44542231dc741cde6733a4c425fe0622027874
# Parent  19e7e0fce7a525c68261eaed1e76f93fb21b6973
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)

diff --git a/src/fileio.c b/src/fileio.c
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -10210,7 +10210,7 @@ file_pat_to_reg_pat(pat, pat_end, allow_
     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
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    820,
+/**/
     819,
 /**/
     818,