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SourceHandle of NetBufferList is set to NULL by… |VMware Communities

Please understand that my English is not good before starting…

 

I installed Windows 2019 server on VMWare Workstation.

And I found that there is an critical issue(maybe..?) where the network function is malfunctioning.

 

The cause is VMWare’s vmxnet3.sys driver.

 

About 7~8 month ago, Your Company provided VMWare Horizon hotfix patch based on my analysis datas. (Double Free Issue of NBL Context in vmwvudpd.sys)

 

And Now… the new bug seems to be a related with vmxnet3.sys…

 

Look at the picture below..

 

The current state of the WFP layer is FWPM_LAYER_INBOUND_MAC_FRAME_ETHERNET.

The SourceHandle in NBL is NULL.

 

That is, the NIC information of the packet received from vmxnet3.sys cannot be obtained.

 

So I am requesting a review of the fix for this bug.

 

If you have any questions, please reply to the email below.

 

gunwoo.na@ahnlab.com

 

Thanks


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