Module: wine Branch: master Commit: b9407f75efeb9cf91dde4557110e35518328a3aa URL: https://source.winehq.org/git/wine.git/?a=commit;h=b9407f75efeb9cf91dde45571... Author: Zebediah Figura <z.figura12(a)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(a)gmail.com> Signed-off-by: Andrew Eikum <aeikum(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)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 );