Jacek Caban : wow64win: Fix handling NULL input32 in NtUserSendInput.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ab6df6348dbba516f2e5a91c74f6cbb5e39bba67
URL:    https://gitlab.winehq.org/wine/wine/-/commit/ab6df6348dbba516f2e5a91c74f6cbb...

Author: Jacek Caban 
Date:   Wed Aug 17 13:47:31 2022 +0200

wow64win: Fix handling NULL input32 in NtUserSendInput.

---

dlls/wow64win/user.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dlls/wow64win/user.c b/dlls/wow64win/user.c
index d4b9aac4fb6..1247eb86525 100644
--- 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;