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[NTOS:MM] Fail allocating non-paged pool when running out of available pages

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Jérôme Gardou 2021-02-22 11:43:04 +01:00 • committed by Jérôme Gardou
parent 34630a06ca
commit 54354712e2
1 changed files with 13 additions and 0 deletions
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13
ntoskrnl/mm/ARM3/pool.c
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@ -849,6 +849,19 @@ MiAllocatePoolPages(IN POOL_TYPE PoolType,
// //
MiAcquirePfnLockAtDpcLevel(); MiAcquirePfnLockAtDpcLevel();
/* Check that we have enough available pages for this request */
if (MmAvailablePages < SizeInPages)
{
MiReleasePfnLockFromDpcLevel();
KeReleaseQueuedSpinLock(LockQueueMmNonPagedPoolLock, OldIrql);
MiReleaseSystemPtes(StartPte, SizeInPages, NonPagedPoolExpansion);
DPRINT1("OUT OF AVAILABLE PAGES! Required %lu, Available %lu\n", SizeInPages, MmAvailablePages);
return NULL;
}
// //
// Loop the pages // Loop the pages
// //