This fix is not working in 6.9.2 for me.
2022-04-30T05:12:46.555460Z qemu-system-x86_64: -device vhost-user-fs-pci,chardev=chr-vu-fs0,tag=web,bus=pci.0,addr=0x3: Failed to write msg. Wrote -1 instead of 12.
2022-04-30T05:12:46.555510Z qemu-system-x86_64: -device vhost-user-fs-pci,chardev=chr-vu-fs0,tag=web,bus=pci.0,addr=0x3: vhost_dev_init failed: Operation not permitted