Piotr Caban : winedump: Fix buffer overflow in debugstr_wn helper.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: cf78df3612d0731f1254d03e381401655b508433
URL:    https://gitlab.winehq.org/wine/wine/-/commit/cf78df3612d0731f1254d03e3814016...

Author: Piotr Caban <piotr(a)codeweavers.com>
Date:   Sat Oct 15 20:12:00 2022 +0200

winedump: Fix buffer overflow in debugstr_wn helper.

---

 tools/winedump/emf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/winedump/emf.c b/tools/winedump/emf.c
index 48a67141ace..8c74702ecff 100644
--- a/tools/winedump/emf.c
+++ b/tools/winedump/emf.c
@@ -49,7 +49,7 @@ static const char *debugstr_wn(const WCHAR *wstr, unsigned int n)
     i = 0;
     p = buf;
     *p++ = '\"';
-    while (i < n && i < sizeof(buf) - 2 && wstr[i])
+    while (i < n && i < sizeof(buf) - 3 && wstr[i])
     {
         if (wstr[i] < 127) *p++ = wstr[i];
         else *p++ = '.';