[PATCH 6/8] dlls/oleaut32: Validate args of ITypeLib2_fnIsName()

[Edward O'Callaghan]

From: Edward O'Callaghan

Signed-off-by: Edward O'Callaghan 
---
 dlls/oleaut32/typelib.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/oleaut32/typelib.c b/dlls/oleaut32/typelib.c
index 8ac2b25961b..d64d4dbb585 100644
--- a/dlls/oleaut32/typelib.c
+++ b/dlls/oleaut32/typelib.c
@@ -5102,6 +5102,9 @@ static HRESULT WINAPI ITypeLib2_fnIsName(

TRACE("%p, %s, %#lx, %p.\n", iface, debugstr_w(szNameBuf), lHashVal, pfName);

+    if ((!szNameBuf && !lHashVal) || !pfName)
+        return E_INVALIDARG;
+
     *pfName=TRUE;
     for(tic = 0; tic < This->TypeInfoCount; ++tic){
         ITypeInfoImpl *pTInfo = This->typeinfos[tic];