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[WIN32K:NTUSER] Make sure to hold User Global Lock before unmapping desktop heap

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This commit is contained in:
Jérôme Gardou
2021-08-03 23:13:19 +02:00
committed by Jérôme Gardou
parent 6ec0420dc6
commit 8c098ee8d2
1 changed files with 5 additions and 1 deletions
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win32ss/user/ntuser/desktop.c
+5 -1
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@@ -215,6 +215,7 @@ NTAPI
IntDesktopObjectClose( IntDesktopObjectClose(
_In_ PVOID Parameters) _In_ PVOID Parameters)
{ {
NTSTATUS Ret;
PWIN32_CLOSEMETHOD_PARAMETERS CloseParameters = Parameters; PWIN32_CLOSEMETHOD_PARAMETERS CloseParameters = Parameters;
PPROCESSINFO ppi = PsGetProcessWin32Process(CloseParameters->Process); PPROCESSINFO ppi = PsGetProcessWin32Process(CloseParameters->Process);
if (ppi == NULL) if (ppi == NULL)
@@ -224,7 +225,10 @@ IntDesktopObjectClose(
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }
return IntUnmapDesktopView((PDESKTOP)CloseParameters->Object); UserEnterExclusive();
Ret = IntUnmapDesktopView((PDESKTOP)CloseParameters->Object);
UserLeave();
return Ret;
} }