Fixed null pointer dereference.

diff --git a/winpr/libwinpr/rpc/ndr_pointer.c b/winpr/libwinpr/rpc/ndr_pointer.c
index d8ae596..dbfdaee 100644 (file)
--- a/winpr/libwinpr/rpc/ndr_pointer.c
+++ b/winpr/libwinpr/rpc/ndr_pointer.c
@@ -151,7 +151,7 @@ void NdrpPointerBufferSize(unsigned char* pMemory, PFORMAT_STRING pFormat, PMIDL
                        break;
        }
 
-       if (attributes & FC_POINTER_DEREF)
+       if ((attributes & FC_POINTER_DEREF) && pMemory)
                pMemory = *(unsigned char**) pMemory;
 
        pfnSizeRoutine = pfnSizeRoutines[*pNextFormat];