Description of problem:
SELinux is preventing vboxdrv.sh from 'create' accesses on the file vbox-setup.log.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that vboxdrv.sh should be allowed create access on the vbox-setup.log file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'vboxdrv.sh' --raw | audit2allow -M my-vboxdrvsh
# semodule -X 300 -i my-vboxdrvsh.pp

Additional Information:
Source Context                system_u:system_r:init_t:s0
Target Context                system_u:object_r:var_log_t:s0
Target Objects                vbox-setup.log [ file ]
Source                        vboxdrv.sh
Source Path                   vboxdrv.sh
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-284.37.fc27.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.17.17-100.fc27.x86_64 #1 SMP Mon
                              Aug 20 15:53:11 UTC 2018 x86_64 x86_64
Alert Count                   43
First Seen                    2018-03-12 05:01:39 CET
Last Seen                     2018-08-24 22:36:25 CEST
Local ID                      bab2a8b3-2891-44af-bc12-4db39311a10f

Raw Audit Messages
type=AVC msg=audit(1535142985.478:224): avc:  denied  { create } for  pid=897 comm="vboxdrv.sh" name="vbox-setup.log" scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:var_log_t:s0 tclass=file permissive=0


Hash: vboxdrv.sh,init_t,var_log_t,file,create

Version-Release number of selected component:
selinux-policy-3.13.1-284.37.fc27.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.3
hashmarkername: setroubleshoot
kernel:         4.17.17-100.fc27.x86_64
type:           libreport

Potential duplicate: bug 1377047