I just updated my kernel to 5.15.0-47-generic #51-Ubuntu SMP Thu Aug 11 07:51:15 UTC 2022 x86_64 and while in general the system seems to behave fine a VM running Windows on VirtualBox 6.1.34-dfsg-3~ubuntu1.22.04.1 starts to misbehave reproducible. One visible effect is that Chrome in the Windows VM crashes regularly.
When I reboot the machine into the 5.15.0-46 kernel version the problem disappears. When I then reboot the machine into the 5.15.0-47 kernel the problem is back again.
Here are some further system details:
Ubuntu 22.04.1 LTS x86_64
HP EliteDesk 805 G6 Desktop Mini PC
AMD Ryzen 5 PRO 4650G with Radeon Graphics (12) @ 4.308GHz
Any ideas? Is there some known issue already out there?