Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-06-26 07:51:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

[NTOS:MM] Fix typo in MiCheckForUserStackOverflow

Browse source
This commit is contained in:
Andrew Boyarshin 2018-12-12 18:12:24 +07:00 committed by Pierre Schweitzer
parent 472787ffea
commit 3ba51dc218
1 changed files with 10 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
ntoskrnl/mm/ARM3/pagfault.c
View file

@ -33,7 +33,7 @@ MiCheckForUserStackOverflow(IN PVOID Address,
PETHREAD CurrentThread = PsGetCurrentThread();
PTEB Teb = CurrentThread->Tcb.Teb;
PVOID StackBase, DeallocationStack, NextStackAddress;
SIZE_T GuranteedSize;
SIZE_T GuaranteedSize;
NTSTATUS Status;
/* Do we own the address space lock? */
@ -56,15 +56,15 @@ MiCheckForUserStackOverflow(IN PVOID Address,
/* Read the current settings */
StackBase = Teb->NtTib.StackBase;
DeallocationStack = Teb->DeallocationStack;
GuranteedSize = Teb->GuaranteedStackBytes;
GuaranteedSize = Teb->GuaranteedStackBytes;
DPRINT("Handling guard page fault with Stacks Addresses 0x%p and 0x%p, guarantee: %lx\n",
StackBase, DeallocationStack, GuranteedSize);
StackBase, DeallocationStack, GuaranteedSize);
/* Guarantees make this code harder, for now, assume there aren't any */
ASSERT(GuranteedSize == 0);
ASSERT(GuaranteedSize == 0);
/* So allocate only the minimum guard page size */
GuranteedSize = PAGE_SIZE;
GuaranteedSize = PAGE_SIZE;
/* Does this faulting stack address actually exist in the stack? */
if ((Address >= StackBase) || (Address < DeallocationStack))
@ -76,7 +76,7 @@ MiCheckForUserStackOverflow(IN PVOID Address,
}
/* This is where the stack will start now */
NextStackAddress = (PVOID)((ULONG_PTR)PAGE_ALIGN(Address) - GuranteedSize);
NextStackAddress = (PVOID)((ULONG_PTR)PAGE_ALIGN(Address) - GuaranteedSize);
/* Do we have at least one page between here and the end of the stack? */
if (((ULONG_PTR)NextStackAddress - PAGE_SIZE) <= (ULONG_PTR)DeallocationStack)
@ -85,13 +85,13 @@ MiCheckForUserStackOverflow(IN PVOID Address,
DPRINT1("Close to our death...\n");
/* Calculate the next memory address */
NextStackAddress = (PVOID)((ULONG_PTR)PAGE_ALIGN(DeallocationStack) + GuranteedSize);
NextStackAddress = (PVOID)((ULONG_PTR)PAGE_ALIGN(DeallocationStack) + GuaranteedSize);
/* Allocate the memory */
Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
&NextStackAddress,
0,
&GuranteedSize,
&GuaranteedSize,
MEM_COMMIT,
PAGE_READWRITE);
if (NT_SUCCESS(Status))
@ -111,13 +111,13 @@ MiCheckForUserStackOverflow(IN PVOID Address,
ASSERT((PsGetCurrentProcess()->Peb->NtGlobalFlag & FLG_DISABLE_STACK_EXTENSION) == 0);
/* Update the stack limit */
Teb->NtTib.StackLimit = (PVOID)((ULONG_PTR)NextStackAddress + GuranteedSize);
Teb->NtTib.StackLimit = (PVOID)((ULONG_PTR)NextStackAddress + GuaranteedSize);
/* Now move the guard page to the next page */
Status = ZwAllocateVirtualMemory(NtCurrentProcess(),
&NextStackAddress,
0,
&GuranteedSize,
&GuaranteedSize,
MEM_COMMIT,
PAGE_READWRITE | PAGE_GUARD);
if ((NT_SUCCESS(Status) || (Status == STATUS_ALREADY_COMMITTED)))