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[NTOS:Mm] Handle RosMm pages in MiDecrementReferenceCount

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This is required, when RosMm unmaps locked pages and they later get unlocked.
This commit is contained in:
Timo Kreuzer 2023-04-09 23:12:14 +03:00
parent 80dd9f5a90
commit 5f014e421b
1 changed files with 11 additions and 0 deletions
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11
ntoskrnl/mm/ARM3/pfnlist.c
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@ -1219,6 +1219,10 @@ MiDecrementShareCount(IN PMMPFN Pfn1,
} }
} }
VOID
NTAPI
MmDereferencePage(PFN_NUMBER Pfn);
VOID VOID
NTAPI NTAPI
MiDecrementReferenceCount(IN PMMPFN Pfn1, MiDecrementReferenceCount(IN PMMPFN Pfn1,
@ -1227,6 +1231,13 @@ MiDecrementReferenceCount(IN PMMPFN Pfn1,
/* PFN lock must be held */ /* PFN lock must be held */
MI_ASSERT_PFN_LOCK_HELD(); MI_ASSERT_PFN_LOCK_HELD();
/* Handle RosMm PFNs here, too (in case they got locked/unlocked by ARM3) */
if (MI_IS_ROS_PFN(Pfn1))
{
MmDereferencePage(PageFrameIndex);
return;
}
/* Sanity checks on the page */ /* Sanity checks on the page */
if (PageFrameIndex > MmHighestPhysicalPage || if (PageFrameIndex > MmHighestPhysicalPage ||
Pfn1 != MI_PFN_ELEMENT(PageFrameIndex) || Pfn1 != MI_PFN_ELEMENT(PageFrameIndex) ||