Paul Gofman : winmm: Fix pszSound allocation in PlaySound_Alloc().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d9636260442292990bab00aec308116f3062f3ad
URL:    https://gitlab.winehq.org/wine/wine/-/commit/d9636260442292990bab00aec308116...

Author: Paul Gofman <pgofman(a)codeweavers.com>
Date:   Mon Oct 30 20:31:58 2023 -0600

winmm: Fix pszSound allocation in PlaySound_Alloc().

---

 dlls/winmm/playsound.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/winmm/playsound.c b/dlls/winmm/playsound.c
index 2ba2ad1e8dc..bd26bf481f3 100644
--- a/dlls/winmm/playsound.c
+++ b/dlls/winmm/playsound.c
@@ -231,8 +231,9 @@ static WINE_PLAYSOUND*  PlaySound_Alloc(const void* pszSound, HMODULE hmod,
         else
         {
             UNICODE_STRING usBuffer;
-            RtlCreateUnicodeStringFromAsciiz(&usBuffer, pszSound);
-            wps->pszSound = usBuffer.Buffer;
+            if (!RtlCreateUnicodeStringFromAsciiz(&usBuffer, pszSound)) goto oom_error;
+            wps->pszSound = wcsdup(usBuffer.Buffer);
+            RtlFreeUnicodeString(&usBuffer);
             if (!wps->pszSound) goto oom_error;
             wps->bAlloc = TRUE;
         }