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[NTOS:MM] Handle unimplemeted case for MiCheckForUserStackOverflow

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This commit is contained in:
Bernhard Feichtinger 2018-11-13 20:45:27 +01:00 committed by Pierre Schweitzer
parent cdf47d5254
commit 8a0495063b
1 changed files with 22 additions and 1 deletions
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23
ntoskrnl/mm/ARM3/pagfault.c
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@ -81,8 +81,29 @@ MiCheckForUserStackOverflow(IN PVOID Address,
/* Do we have at least one page between here and the end of the stack? */
if (((ULONG_PTR)NextStackAddress - PAGE_SIZE) <= (ULONG_PTR)DeallocationStack)
{
/* We don't -- Windows would try to make this guard page valid now */
/* We don't -- Trying to make this guard page valid now */
DPRINT1("Close to our death...\n");
/* Calculate the next memory address */
NextStackAddress = (PVOID)((ULONG_PTR)PAGE_ALIGN(DeallocationStack) + GuranteedSize);
/* Allocate the memory */
Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
&NextStackAddress,
0,
&GuranteedSize,
MEM_COMMIT,
PAGE_READWRITE);
if (NT_SUCCESS(Status))
{
/* Success! */
Teb->NtTib.StackLimit = NextStackAddress;
}
else
{
DPRINT1("Failed to allocate memory\n");
}
return STATUS_STACK_OVERFLOW;
}