A VMware engineer pointed out that MacOS Catalina version 10.15.6 was causing a crash with virtualization software such as VirtualBox or VMware.
Several users have reported that along with the latest update to macOS, a new bug phenomenon has hit their head, leading them to be unable to use their virtual machines. Catalina version 10.15.6 seems to have a problem with the App Sandbox component, which leaks kernel memory, eventually leading to the crashes mentioned above.
Catalina is a rather vomited version of Apple’s operating system, with almost every update, a new bug strikes. Let’s say you’re not alone with this, Windows 10 can “boast” like that, the latest bug has just been revealed there. But back to Macs: this time, users of virtual machines have noticed that using some apps leads to system crashes. VMware’s software is seriously affected by the incident, and the company’s engineers have identified the flaw, which they say “doesn’t paint well” at all.
The problem is quite complex and cannot be solved by outside companies, so it is most likely that the situation will only be resolved when Apple releases a system update. It is not yet known whether this bug will also occur with the new macOS version in beta, Big Sur. Both users and engineers are advised that anyone who can do should beware of installing the 10.15.6 update, or if they have already done so, always turn off virtual machines when not in use and restart the host as often as possible.