Description of problem:
restorecon only helps until next dnf update.
SELinux is preventing ldconfig from 'map' accesses on the Datei /usr/lib64/liblvm2cmd.so.2.02.

*****  Plugin restorecon (99.5 confidence) suggests   ************************

If you want to fix the label. 
/usr/lib64/liblvm2cmd.so.2.02 default label should be lib_t.
Then you can run restorecon. The access attempt may have been stopped due to insufficient permissions to access a parent directory in which case try to change the following command accordingly.
Do
# /sbin/restorecon -v /usr/lib64/liblvm2cmd.so.2.02

*****  Plugin catchall (1.49 confidence) suggests   **************************

If you believe that ldconfig should be allowed map access on the liblvm2cmd.so.2.02 file by default.
Then sie sollten dies als Fehler melden.
Um diesen Zugriff zu erlauben, können Sie ein lokales Richtlinien-Modul erstellen.
Do
allow this access for now by executing:
# ausearch -c 'ldconfig' --raw | audit2allow -M my-ldconfig
# semodule -X 300 -i my-ldconfig.pp

Additional Information:
Source Context                system_u:system_r:ldconfig_t:s0
Target Context                system_u:object_r:kdumpctl_tmp_t:s0
Target Objects                /usr/lib64/liblvm2cmd.so.2.02 [ file ]
Source                        ldconfig
Source Path                   ldconfig
Port                          <Unbekannt>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           lvm2-libs-2.02.177-5.fc28.x86_64
Policy RPM                    selinux-policy-3.14.1-32.fc28.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.17.7-200.fc28.x86_64 #1 SMP Tue
                              Jul 17 16:28:31 UTC 2018 x86_64 x86_64
Alert Count                   119
First Seen                    2018-07-23 17:10:29 CEST
Last Seen                     2018-07-23 17:10:29 CEST
Local ID                      fc028dcc-f54c-4ea8-b6d5-637e603e3d3d

Raw Audit Messages
type=AVC msg=audit(1532358629.875:305): avc:  denied  { map } for  pid=7460 comm="ldconfig" path="/usr/lib64/liblvm2cmd.so.2.02" dev="dm-1" ino=270029575 scontext=system_u:system_r:ldconfig_t:s0 tcontext=system_u:object_r:kdumpctl_tmp_t:s0 tclass=file permissive=0


Hash: ldconfig,ldconfig_t,kdumpctl_tmp_t,file,map

Version-Release number of selected component:
selinux-policy-3.14.1-32.fc28.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.5
hashmarkername: setroubleshoot
kernel:         4.17.7-200.fc28.x86_64
type:           libreport