[ros-dev] [ros-diffs] [hbelusca] 74493: [NTOS]: Capture the counted BaseDllName unicode string into a local NULL-terminated buffer before calling wcsrchr on it (actually I think it would be better to create & use a simi...

[Thomas Faber]

There are 12 ExAllocatePoolWithTag calls in that file, and 2
ExAllocatePool calls, one of which you added. The consistency argument
is really not on your side.
But my point is that when adding new code, you should please follow the
"new" guideline (you know, the one that's going on 20 years old).


On 2017-05-08 04:11, Hermès BÉLUSCA-MAÏTO wrote:
> Hi!
> The assert is fixed (r74495). For ExAllocatePool, it would be better to change them all at once in this file.
>
> Hermès
>
> -----Message d'origine-----
> De : Ros-dev [mailto:ros-dev-bounces at reactos.org] De la part de Thomas Faber
> Envoyé : dimanche 7 mai 2017 20:49
> À : ros-dev at reactos.org
> Objet : Re: [ros-dev] [ros-diffs] [hbelusca] 74493: [NTOS]: Capture the counted BaseDllName unicode string into a local NULL-terminated buffer before calling wcsrchr on it (actually I think it would be better to create & use a simi...
>
> On 2017-05-07 20:15, hbelusca at svn.reactos.org wrote:
>> --- trunk/reactos/ntoskrnl/io/iomgr/driver.c	[iso-8859-1] (original)
>> +++ trunk/reactos/ntoskrnl/io/iomgr/driver.c	[iso-8859-1] Sun May  7 18:15:12 2017
>> @@ -884,7 +884,7 @@
>>      PDEVICE_NODE DeviceNode;
>>      PDRIVER_OBJECT DriverObject;
>>      NTSTATUS Status;
>> -    PWCHAR FileNameWithoutPath;
>> +    PWCHAR Buffer, FileNameWithoutPath;
>>      PWSTR FileExtension;
>>      PUNICODE_STRING ModuleName = &BootLdrEntry->BaseDllName;
>>      PLDR_DATA_TABLE_ENTRY LdrEntry;
>> @@ -898,13 +898,19 @@
>>      IopDisplayLoadingMessage(ModuleName);
>>      InbvIndicateProgress();
>>
>> +    Buffer = ExAllocatePool(PagedPool, ModuleName->Length + sizeof(UNICODE_NULL));
>> +    ASSERT(Buffer);
>
> Please don't call ExAllocatePool.
> And please check for allocation failure. An assert is not acceptable.
>
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