The latest Catalina version 10.15.6 is causing problems for users of virtualizers such as VMware Fusion or VirtualBox. The bug results in kernel panics which affect macOS and which result from saturation of the memory used by the system and in particular its kernel. The allocated space fills up disproportionately and it ends up crashing.
Testimonials in the forums of VMware and of VirtualBox have made the same observation. Feedback from users who put the Fusion team on the bug trail in the com.apple.security.sandbox system component or in one of its dependencies.
Apple has been warned and by the time a fix arrives, the solutions are all laborious. We can return for example to macOS 10.15.5; quit virtual machines whenever they are not in use and / or restart your Mac regularly, or even several times a day in order to purge memory.
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