An issue with the App Sandbox is causing problems for some virtual machine software users, with the issue inducing a kernel panic in macOS Catalina 10.15.6 when used for a long period of time.
Owners of virtualization tools including those from VMware and VirtualBox have been raising faults in support forums, claiming their systems crash when using the software. In cases where it occurs, crashes happen with a regularity that the apps were suspected of causing the issue.
Posts in the VirtualBox forums indicate that, on multiple Macs using macOS Catalina 10.15.6, there was a kernel memory leakage for wired memory, which grew the amount of memory in use by approximately 1 gigabyte per hour. Once the leak grew enough, it would cause a kernel panic, the spontaneous closing of programs, and in some cases crashes of the Mac itself.
Read more at AppleInsider.com