#1126191 virtualbox: visrtual boxes using NAT experience 100% CPU usage

Package:
virtualbox
Source:
virtualbox
Submitter:
Francesco Potortì
Date:
2026-02-03 13:29:01 UTC
Severity:
normal
Tags:
#1126191#5
Date:
2026-01-23 11:12:59 UTC
From:
To:
Virtual boxes where at least one network interfaces is configured as NAT use 100% CPU on the host node, even when the guest is idle.

This is claimed to be fixed upstream: https://github.com/VirtualBox/virtualbox/issues/356#issuecomment-3523303714
#1126191#10
Date:
2026-02-03 13:18:02 UTC
From:
To:
The problem does not exist any more with linux-image-6.18.5+deb14-amd64 and virtualbox 7.2.6-dfsg-2