wineoss: Return E_UNEXPECTED with invalid dataflow in GetAudioEndpoint.

63874db7 · Davide Beatrici · Alexandre Julliard · 357350e7 · 63874db7
Commit 63874db7 authored Jun 28, 2023 by Davide Beatrici Committed by Alexandre Julliard Jun 30, 2023
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mmdevdrv.c dlls/wineoss.drv/mmdevdrv.c +4 -0

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--- a/dlls/wineoss.drv/mmdevdrv.c
+++ b/dlls/wineoss.drv/mmdevdrv.c
@@ -306,6 +306,10 @@ HRESULT WINAPI AUDDRV_GetAudioEndpoint(GUID *guid, IMMDevice *dev,
        WARN("Unknown GUID: %s\n", debugstr_guid(guid));
        return AUDCLNT_E_DEVICE_INVALIDATED;
    }
+
+    if(oss_dev->flow != eRender && oss_dev->flow != eCapture)
+        return E_UNEXPECTED;
+
    len = strlen(oss_dev->devnode);
    This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, offsetof(ACImpl, device_name[len + 1]));
    if(!This)