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[NTOS:MM] Handle demand zero PTEs with MM_EXECUTE_READWRITE and MM_READWRITE

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Timo Kreuzer 2020-11-01 15:13:36 +01:00 • committed by Jérôme Gardou
parent 7ca16bf696
commit 4b4bff0642
1 changed files with 3 additions and 2 deletions
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5
ntoskrnl/mm/ARM3/pagfault.c
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@ -2262,12 +2262,13 @@ UserFault:
} }
/* Quick check for demand-zero */ /* Quick check for demand-zero */
if (TempPte.u.Long == (MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS)) if ((TempPte.u.Long == (MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS)) ||
(TempPte.u.Long == (MM_EXECUTE_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS)))
{ {
/* Resolve the fault */ /* Resolve the fault */
MiResolveDemandZeroFault(Address, MiResolveDemandZeroFault(Address,
PointerPte, PointerPte,
MM_READWRITE, TempPte.u.Soft.Protection,
CurrentProcess, CurrentProcess,
MM_NOIRQL); MM_NOIRQL);