Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results


Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging

The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.

Check out The OSR Learning Library at:

ExAllocatePool2 always returns NULL [Verifier disabled & VM Environment]

incapdnsincapdns Member Posts: 4
edited September 2022 in NTFSD

I would like to ask for help with the development of drivers for the windows kernel.

I'm getting nullptr after calling: ExAllocatePool2, for an input of 108 Bytes

I've read several topics and by default I've already disabled all verifiers (1. cmd | 2. verifier | 3. Delete all)
Note: I am a beginner in the area, for this reason after buying the reference book, I am trying to complete this specific tutorial.

Setting Key Setting Result
Enviroment              VMWare Workstation
Free RAM              4GB Free

The code:

The command:
sc create sample type= kernel binPath= c:\MyDriver\MyDriver.sys

Attempts already made:

  • Disable the checker.
  • bcdedit /set testsigning on

The error:

Can someone please help me?

Lucas P.


Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Kernel Debugging 13-17 May 2024 Live, Online
Developing Minifilters 1-5 Apr 2024 Live, Online
Internals & Software Drivers 11-15 Mar 2024 Live, Online
Writing WDF Drivers 20-24 May 2024 Live, Online