[PATCH v3 1/4] winmm: Always allocate at least MAX_PATH bytes in mmioOpenW().
Zebediah Figura
z.figura12 at gmail.com
Thu Dec 17 16:40:48 CST 2020
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
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 );
--
2.29.2
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