wow64win: Fix handling NULL input32 in NtUserSendInput.

ab6df634 · Jacek Caban · Alexandre Julliard · 7bc4ca5b · ab6df634
Commit ab6df634 authored Aug 17, 2022 by Jacek Caban Committed by Alexandre Julliard Aug 17, 2022
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user.c dlls/wow64win/user.c +7 -1

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--- a/dlls/wow64win/user.c
+++ b/dlls/wow64win/user.c
@@ -3222,12 +3222,18 @@ NTSTATUS WINAPI wow64_NtUserSendInput( UINT *args )
    INPUT *inputs = NULL;
    unsigned int i;

-    if (size != sizeof(*inputs32))
+    if (size != sizeof(*inputs32) || !count)
    {
        set_last_error32( ERROR_INVALID_PARAMETER );
        return 0;
    }

+    if (!inputs32)
+    {
+        set_last_error32( ERROR_NOACCESS );
+        return 0;
+    }
+
    if (count && !(inputs = Wow64AllocateTemp( count * sizeof(*inputs) )))
        return 0;