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Reserve space for color tables to fix invalid memory access
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This commit is contained in:
Aiken Harris
2025-12-29 13:17:41 +01:00
parent 28f49dd545
commit 49e97fb8b4
1 changed files with 1 additions and 0 deletions
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xtoskrnl/mm/pfn.cc
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@@ -56,6 +56,7 @@ MM::Pfn::ComputePfnDatabaseSize(VOID)
{ {
/* Calculate the total number of pages required for the PFN database */ /* Calculate the total number of pages required for the PFN database */
PfnDatabaseSize = (HighestPhysicalPage + 1) * sizeof(MMPFN); PfnDatabaseSize = (HighestPhysicalPage + 1) * sizeof(MMPFN);
PfnDatabaseSize += (MM::Colors::GetPagingColors() * sizeof(MMCOLOR_TABLES) * 2);
PfnDatabaseSize = ROUND_UP(PfnDatabaseSize, MM_PAGE_SIZE); PfnDatabaseSize = ROUND_UP(PfnDatabaseSize, MM_PAGE_SIZE);
PfnDatabaseSize >>= MM_PAGE_SHIFT; PfnDatabaseSize >>= MM_PAGE_SHIFT;
} }