[PATCH v3 1/2] dsound: Check if 'cbPropData' for DSPROPERTY_Description1 is large enough

[YeshunYe]

From: YeshunYe <yeyeshun(a)uniontech.com>

Avoid writing out of bounds.

Signed-off-by: YeshunYe <yeyeshun(a)uniontech.com>
---
 dlls/dsound/propset.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/dsound/propset.c b/dlls/dsound/propset.c
index be284a6dda5..28df7887f65 100644
--- a/dlls/dsound/propset.c
+++ b/dlls/dsound/propset.c
@@ -475,6 +475,8 @@ static HRESULT DSPROPERTY_Description1(
         *pcbReturned = sizeof(*ppd);
     if (!pPropData)
         return S_OK;
+    if (cbPropData < sizeof(*ppd))
+        return E_INVALIDARG;
 
     data.DeviceId = ppd->DeviceId;
     data.DataFlow = ppd->DataFlow;
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/8596