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[NTOS]: Handle faults on user-mode addresses, from user-mode processes, if they are owned by ARM3, so they can be forwarded to the VAD fault handler.

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svn path=/trunk/; revision=48164
This commit is contained in:
Sir Richard 2010-07-21 18:09:31 +00:00
parent e6cdd4d0fd
commit f9444f0c52
1 changed files with 6 additions and 1 deletions
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5
reactos/ntoskrnl/mm/mmfault.c
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@ -284,6 +284,11 @@ MmAccessFault(IN BOOLEAN StoreInstruction,
* can go away. * can go away.
*/ */
MemoryArea = MmLocateMemoryAreaByAddress(MmGetKernelAddressSpace(), Address); MemoryArea = MmLocateMemoryAreaByAddress(MmGetKernelAddressSpace(), Address);
if (!(MemoryArea) && (Address <= MM_HIGHEST_VAD_ADDRESS))
{
/* Could this be a VAD fault from user-mode? */
MemoryArea = MmLocateMemoryAreaByAddress(MmGetCurrentAddressSpace(), Address);
}
if ((!(MemoryArea) && ((ULONG_PTR)Address >= (ULONG_PTR)MmPagedPoolStart)) || if ((!(MemoryArea) && ((ULONG_PTR)Address >= (ULONG_PTR)MmPagedPoolStart)) ||
((MemoryArea) && (MemoryArea->Type == MEMORY_AREA_OWNED_BY_ARM3))) ((MemoryArea) && (MemoryArea->Type == MEMORY_AREA_OWNED_BY_ARM3)))
{ {