Dmitry Timoshkov : sxs: Fix off by 1 error when allocating memory.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9ba6e5c2ab4c4d113e9d98454afcdfd9fc30dbf5
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=9ba6e5c2ab4c4d113e9d98454afcdfd9fc30dbf5

Author: Dmitry Timoshkov <dmitry at baikal.ru>
Date:   Sat Oct  3 10:57:13 2020 +0300

sxs: Fix off by 1 error when allocating memory.

Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

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

diff --git a/dlls/sxs/cache.c b/dlls/sxs/cache.c
index bb203f50c0..0acf012032 100644
--- a/dlls/sxs/cache.c
+++ b/dlls/sxs/cache.c
@@ -129,7 +129,7 @@ static WCHAR *build_dll_path( const WCHAR *arch, const WCHAR *name, const WCHAR
     unsigned int len;
 
     if (!(path = build_assembly_name( arch, name, token, version, &len ))) return NULL;
-    len += build_sxs_path( sxsdir ) + 1;
+    len += build_sxs_path( sxsdir ) + 2;
     if (!(ret = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
     {
         HeapFree( GetProcessHeap(), 0, path );