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Clear the allocated page for a bss section (in MmNotPresentFaultSectionView).

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svn path=/trunk/; revision=2322
This commit is contained in:
Hartmut Birr 2001-10-27 15:55:45 +00:00
parent 4f6b97db87
commit 2a1ac328ed
1 changed files with 8 additions and 1 deletions
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9
reactos/ntoskrnl/mm/section.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
/* $Id: section.c,v 1.63 2001/10/10 22:40:36 hbirr Exp $ /* $Id: section.c,v 1.64 2001/10/27 15:55:45 hbirr Exp $
* *
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
* FILE: ntoskrnl/mm/section.c * FILE: ntoskrnl/mm/section.c
@ -376,6 +376,7 @@ MmNotPresentFaultSectionView(PMADDRESS_SPACE AddressSpace,
ULONG Entry1; ULONG Entry1;
ULONG Attributes; ULONG Attributes;
PMM_PAGEOP PageOp; PMM_PAGEOP PageOp;
PVOID NewAddress;
/* /*
* There is a window between taking the page fault and locking the * There is a window between taking the page fault and locking the
@ -538,6 +539,12 @@ MmNotPresentFaultSectionView(PMADDRESS_SPACE AddressSpace,
MmLockSectionSegment(Segment); MmLockSectionSegment(Segment);
Page = MmAllocPage(0); Page = MmAllocPage(0);
} }
// clear the page
NewAddress = ExAllocatePageWithPhysPage((ULONG)Page);
memset(NewAddress, 0, PAGESIZE);
ExUnmapPage(NewAddress);
Status = MmCreateVirtualMapping(PsGetCurrentProcess(), Status = MmCreateVirtualMapping(PsGetCurrentProcess(),
Address, Address,
MemoryArea->Attributes, MemoryArea->Attributes,