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[NTOS:MM] Fix NtFreeVirtualMemory() FreeType parameter checks. CORE-13126

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Serge Gautherie 2017-12-09 12:16:44 +01:00 committed by Thomas Faber
parent 4f7159e3a5
commit 614ace03fa
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1 changed files with 5 additions and 15 deletions
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20
ntoskrnl/mm/ARM3/virtual.c
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@ -5108,21 +5108,11 @@ NtFreeVirtualMemory(IN HANDLE ProcessHandle,
PAGED_CODE();
//
// Only two flags are supported
// Only two flags are supported, exclusively.
//
if (!(FreeType & (MEM_RELEASE | MEM_DECOMMIT)))
if (FreeType != MEM_RELEASE && FreeType != MEM_DECOMMIT)
{
DPRINT1("Invalid FreeType\n");
return STATUS_INVALID_PARAMETER_4;
}
//
// Check if no flag was used, or if both flags were used
//
if (!((FreeType & (MEM_DECOMMIT | MEM_RELEASE))) ||
((FreeType & (MEM_DECOMMIT | MEM_RELEASE)) == (MEM_DECOMMIT | MEM_RELEASE)))
{
DPRINT1("Invalid FreeType combination\n");
DPRINT1("Invalid FreeType (0x%08lx)\n", FreeType);
return STATUS_INVALID_PARAMETER_4;
}
@ -5200,8 +5190,8 @@ NtFreeVirtualMemory(IN HANDLE ProcessHandle,
}
}
DPRINT("NtFreeVirtualMemory: Process 0x%p, Adress 0x%p, size 0x%x, FreeType %x.\n",
Process, PBaseAddress, PRegionSize, FreeType);
DPRINT("NtFreeVirtualMemory: Process 0x%p, Address 0x%p, Size 0x%Ix, FreeType 0x%08lx\n",
Process, PBaseAddress, PRegionSize, FreeType);
//
// Lock the address space