Me too.
I was using an old Radeon hd 6570 to circumvent this problem.
Thanks to you guys i can now use my GTX 1050 TI on Linux'Vms with passthrough!
Thank you so much!
So, to summarize:
# From within the Linux Guest OS, do the following:
1) Create the file.
sudo gedit /etc/modprobe.d/snd-hda-intel.conf
2) Add the following line, save, and close.
options snd-hda-intel enable_msi=1
3) Reboot and issue should be solved!