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[NTDLL:LDR] Don't hardcode process-execute flag values. (#4111)

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Hermès Bélusca-Maïto 2021-11-16 00:34:39 +01:00
parent 0889182d66
commit 4dd734e92c
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1 changed files with 16 additions and 11 deletions
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27
dll/ntdll/ldr/ldrinit.c
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@ -2427,21 +2427,26 @@ LdrpInitializeProcess(IN PCONTEXT Context,
/* Validate the Image for MP Usage */
if (LdrpNumberOfProcessors > 1) LdrpValidateImageForMp(LdrpImageEntry);
/* Check NX Options */
if (SharedUserData->NXSupportPolicy == 1)
/* Check NX options and set them */
if (SharedUserData->NXSupportPolicy == NX_SUPPORT_POLICY_ALWAYSON)
{
ExecuteOptions = 0xD;
ExecuteOptions = MEM_EXECUTE_OPTION_DISABLE |
MEM_EXECUTE_OPTION_DISABLE_THUNK_EMULATION |
MEM_EXECUTE_OPTION_PERMANENT;
}
else if (!SharedUserData->NXSupportPolicy)
else if (SharedUserData->NXSupportPolicy == NX_SUPPORT_POLICY_ALWAYSOFF)
{
ExecuteOptions = 0xA;
ExecuteOptions = MEM_EXECUTE_OPTION_ENABLE | MEM_EXECUTE_OPTION_PERMANENT;
}
Status = NtSetInformationProcess(NtCurrentProcess(),
ProcessExecuteFlags,
&ExecuteOptions,
sizeof(ExecuteOptions));
if (!NT_SUCCESS(Status))
{
DPRINT1("LDR: Could not set process execute flags 0x%x; status %x\n",
ExecuteOptions, Status);
}
/* Let Mm know */
ZwSetInformationProcess(NtCurrentProcess(),
ProcessExecuteFlags,
&ExecuteOptions,
sizeof(ULONG));
// FIXME: Should be done by Application Compatibility features,
// by reading the registry, etc...