Alexandre Julliard : ntdll: Fix off-by-one allocation error.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d96fd000d3e71fed67c5182d06dc9ce3aa091973
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d96fd000d3e71fed67c5182d06dc9ce3aa091973

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Mon Jun  3 10:28:29 2019 +0200

ntdll: Fix off-by-one allocation error.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47311
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ntdll/loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 1660667..b5bf219 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -2313,7 +2313,7 @@ static NTSTATUS find_builtin_dll( const WCHAR *name, WINE_MODREF **pwm,
 
     len = strlenW( name );
     if (build_dir) maxlen = strlen(build_dir) + sizeof("/programs/") + len;
-    for (i = 0; (path = wine_dll_enum_load_path( i )); i++) maxlen = max( maxlen, strlen(path) );
+    for (i = 0; (path = wine_dll_enum_load_path( i )); i++) maxlen = max( maxlen, strlen(path)+1 );
     maxlen += len + sizeof(".so");
 
     if (!(file = RtlAllocateHeap( GetProcessHeap(), 0, maxlen ))) return STATUS_NO_MEMORY;