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- NtAllocateVirtualMemory, NtProtectVirtualMemory: Page Protection cannot be any combination of Memory Protection Constants, see MSDN.

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Add checks to handle non compatible combinations are fail. Fixes 6 more kernel32_winetest for virtual memory.

svn path=/trunk/; revision=40873
This commit is contained in:
Michael Martin 2009-05-09 17:00:18 +00:00
parent fc81096af5
commit bf49aa19f7
2 changed files with 26 additions and 5 deletions
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16
reactos/ntoskrnl/mm/anonmem.c
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@ -550,10 +550,7 @@ NtAllocateVirtualMemory(IN HANDLE ProcessHandle,
* AllocationType = Indicates the type of virtual memory you like to
* allocated, can be a combination of MEM_COMMIT,
* MEM_RESERVE, MEM_RESET, MEM_TOP_DOWN.
* Protect = Indicates the protection type of the pages allocated, can be
* a combination of PAGE_READONLY, PAGE_READWRITE,
* PAGE_EXECUTE_READ, PAGE_EXECUTE_READWRITE, PAGE_GUARD,
* PAGE_NOACCESS
* Protect = Indicates the protection type of the pages allocated.
* RETURNS: Status
*/
{
@ -567,6 +564,7 @@ NtAllocateVirtualMemory(IN HANDLE ProcessHandle,
ULONG RegionSize;
PVOID PBaseAddress;
ULONG PRegionSize;
ULONG MemProtection;
PHYSICAL_ADDRESS BoundaryAddressMultiple;
KPROCESSOR_MODE PreviousMode;
@ -578,7 +576,15 @@ NtAllocateVirtualMemory(IN HANDLE ProcessHandle,
Protect);
/* Check for valid protection flags */
if (!Protect || Protect & ~PAGE_FLAGS_VALID_FROM_USER_MODE)
MemProtection = Protect & ~(PAGE_GUARD|PAGE_NOCACHE);
if (MemProtection != PAGE_NOACCESS &&
MemProtection != PAGE_READONLY &&
MemProtection != PAGE_READWRITE &&
MemProtection != PAGE_WRITECOPY &&
MemProtection != PAGE_EXECUTE &&
MemProtection != PAGE_EXECUTE_READ &&
MemProtection != PAGE_EXECUTE_READWRITE &&
MemProtection != PAGE_EXECUTE_WRITECOPY)
{
DPRINT1("Invalid page protection\n");
return STATUS_INVALID_PAGE_PROTECTION;

15
reactos/ntoskrnl/mm/virtual.c
View file

@ -844,11 +844,26 @@ NtProtectVirtualMemory(IN HANDLE ProcessHandle,
{
PEPROCESS Process;
ULONG OldAccessProtection;
ULONG Protection;
PVOID BaseAddress = NULL;
SIZE_T NumberOfBytesToProtect = 0;
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
NTSTATUS Status = STATUS_SUCCESS;
/* Check for valid protection flags */
Protection = NewAccessProtection & ~(PAGE_GUARD|PAGE_NOCACHE);
if (Protection != PAGE_NOACCESS &&
Protection != PAGE_READONLY &&
Protection != PAGE_READWRITE &&
Protection != PAGE_WRITECOPY &&
Protection != PAGE_EXECUTE &&
Protection != PAGE_EXECUTE_READ &&
Protection != PAGE_EXECUTE_READWRITE &&
Protection != PAGE_EXECUTE_WRITECOPY)
{
return STATUS_INVALID_PAGE_PROTECTION;
}
/* Check if we came from user mode */
if (PreviousMode != KernelMode)
{