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[NTOS:PS] Revert 4d7062abb6 on request

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This commit is contained in:
Eric Kohl 2021-05-02 16:26:11 +02:00
parent 9fa31e0f9b
commit a7d6483e65
1 changed files with 10 additions and 39 deletions
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49
ntoskrnl/ps/query.c
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@ -2032,48 +2032,19 @@ NtSetInformationThread(IN HANDLE ThreadHandle,
ULONG_PTR TlsIndex = 0;
PVOID *ExpansionSlots;
PETHREAD ProcThread;
ULONG Alignment;
BOOLEAN HasPrivilege;
PAGED_CODE();
/* Check if we were called from user mode */
if (PreviousMode != KernelMode)
{
/* Enter SEH */
_SEH2_TRY
{
switch (ThreadInformationClass)
{
case ThreadPriority:
Alignment = sizeof(KPRIORITY);
break;
case ThreadAffinityMask:
case ThreadQuerySetWin32StartAddress:
Alignment = sizeof(ULONG_PTR);
break;
case ThreadEnableAlignmentFaultFixup:
Alignment = sizeof(BOOLEAN);
break;
default:
Alignment = sizeof(ULONG);
break;
}
/* Probe the buffer */
ProbeForRead(ThreadInformation,
ThreadInformationLength,
Alignment);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* Return the exception code */
_SEH2_YIELD(return _SEH2_GetExceptionCode());
}
_SEH2_END;
}
/* Verify Information Class validity */
#if 0
Status = DefaultSetInfoBufferCheck(ThreadInformationClass,
PsThreadInfoClass,
RTL_NUMBER_OF(PsThreadInfoClass),
ThreadInformation,
ThreadInformationLength,
PreviousMode);
if (!NT_SUCCESS(Status)) return Status;
#endif
/* Check what kind of information class this is */
switch (ThreadInformationClass)