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[WIN32K:NTUSER] Make sure to hold User Global Lock before mapping desktop heap (#4144)

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Addendum to 8c098ee8d.
CORE-17890
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Serge Gautherie 2021-12-19 23:34:35 +01:00 committed by GitHub
parent 7d1b50394b
commit d375b7f6c5
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1 changed files with 5 additions and 1 deletions
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6
win32ss/user/ntuser/desktop.c
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@ -202,12 +202,16 @@ NTAPI
IntDesktopObjectOpen(
_In_ PVOID Parameters)
{
NTSTATUS Ret;
PWIN32_OPENMETHOD_PARAMETERS OpenParameters = Parameters;
PPROCESSINFO ppi = PsGetProcessWin32Process(OpenParameters->Process);
if (ppi == NULL)
return STATUS_SUCCESS;
return IntMapDesktopView((PDESKTOP)OpenParameters->Object);
UserEnterExclusive();
Ret = IntMapDesktopView((PDESKTOP)OpenParameters->Object);
UserLeave();
return Ret;
}
NTSTATUS