Zebediah Figura : winmm: Always allocate at least MAX_PATH bytes in mmioOpenW().
Alexandre Julliard
julliard at winehq.org
Fri Dec 18 12:52:54 CST 2020
Module: wine
Branch: master
Commit: b9407f75efeb9cf91dde4557110e35518328a3aa
URL: https://source.winehq.org/git/wine.git/?a=commit;h=b9407f75efeb9cf91dde4557110e35518328a3aa
Author: Zebediah Figura <z.figura12 at gmail.com>
Date: Thu Dec 17 16:40:48 2020 -0600
winmm: Always allocate at least MAX_PATH bytes in mmioOpenW().
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/winmm/mmio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/dlls/winmm/mmio.c b/dlls/winmm/mmio.c
index 48bbd3ed48d..cb3175c5cd7 100644
--- a/dlls/winmm/mmio.c
+++ b/dlls/winmm/mmio.c
@@ -734,6 +734,7 @@ HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo,
if (szFileName)
{
INT len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL );
+ if (len < MAX_PATH) len = MAX_PATH;
szFn = HeapAlloc( GetProcessHeap(), 0, len );
if (!szFn) return NULL;
WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL );
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