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Fix check for PTE removal flag

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This commit is contained in:
Aiken Harris
2026-03-25 09:53:57 +01:00
parent 441e4f510b
commit a79f26250a
2 changed files with 2 additions and 2 deletions
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2
xtoskrnl/mm/alloc.cc
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@@ -818,7 +818,7 @@ MM::Allocator::FreeNonPagedPoolPages(IN PVOID VirtualAddress,
PageFrameNumber = MM::Paging::GetPageFrameNumber(PointerPte); PageFrameNumber = MM::Paging::GetPageFrameNumber(PointerPte);
Pfn = MM::Pfn::GetPfnEntry(PageFrameNumber); Pfn = MM::Pfn::GetPfnEntry(PageFrameNumber);
/* Clear PFN shared count and mark the PFN as deleted */ /* Clear PFN shared count and mark the PFN as ready for removal */
Pfn->u2.ShareCount = 0; Pfn->u2.ShareCount = 0;
Pfn->PteAddress = (PMMPTE)((ULONG_PTR)Pfn->PteAddress | 0x1); Pfn->PteAddress = (PMMPTE)((ULONG_PTR)Pfn->PteAddress | 0x1);

2
xtoskrnl/mm/pfn.cc
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@@ -185,7 +185,7 @@ MM::Pfn::DecrementReferenceCount(IN PMMPFN PageFrameNumber,
} }
/* Check if the PTE is marked as being ready for removal */ /* Check if the PTE is marked as being ready for removal */
if(MM::Paging::GetPte(PageFrameNumber->PteAddress) & 0x1) if((ULONG_PTR)PageFrameNumber->PteAddress & 0x1)
{ {
/* Check the page's cache attribute */ /* Check the page's cache attribute */
if((PageFrameNumber->u3.e1.CacheAttribute != PfnCached) && if((PageFrameNumber->u3.e1.CacheAttribute != PfnCached) &&