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[NTOSKRNL] On open, verify and validate the hint device object if any

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Pierre Schweitzer 2018-10-05 10:49:11 +02:00
parent 779d87b483
commit 0b713d4fa0
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1 changed files with 8 additions and 2 deletions
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10
ntoskrnl/io/iomgr/file.c
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@ -673,10 +673,16 @@ IopParseDevice(IN PVOID ParseObject,
}
}
/* If we have a top level device hint, verify it */
if (OpenPacket->InternalFlags & IOP_USE_TOP_LEVEL_DEVICE_HINT)
{
// FIXME: Verify our device object is good to use
ASSERT(DirectOpen == FALSE);
Status = IopCheckTopDeviceHint(&DeviceObject, OpenPacket, DirectOpen);
if (!NT_SUCCESS(Status))
{
IopDereferenceDeviceObject(OriginalDeviceObject, FALSE);
if (Vpb) IopDereferenceVpbAndFree(Vpb);
return Status;
}
}
/* If we traversed a mount point, reset the information */