STATUS_INVALID_USER_BUFFER in IRP_MJ_DIRECTORY_CONTROL IoMarkIrpPending

NTFSD
1

Hi,All

I tried to IoMarkIrpPending “IRP_MJ_DIRECTORY_CONTROL” ,

when i handle this pending Irp again, call the lower driver, it returned

STATUS_INVALID_USER_BUFFER, anyone knows why?

Thanks

Ben

2

Bin Zeng wrote:

Hi,All

I tried to IoMarkIrpPending “IRP_MJ_DIRECTORY_CONTROL” ,

when i handle this pending Irp again, call the lower driver, it returned

STATUS_INVALID_USER_BUFFER, anyone knows why?

AFAIK this should be returned if the Irp->UserBuffer value is invalid…
No? So if you mark the Irp pending what happens is that it might be
processed in a different context which means the Userbuffer isn’t valid
anymore.

–

Edouard