I'm seeing a lot of this in my dmesg:
[96720.523331] VBoxClient[69360]: segfault at 968 ip 00007f4ec6b05e0d sp 00007ffe272a1d10 error 4 in libX11.so.6.3.0[7f4ec6ae8000+8b000]
...
What is the cause of this? I'm using the latest Virtualbox on my host, and I'm using the latest Kali install in my guest.
I've tried to reinstall Kali -- same problem.