SELinux is preventing mprotheap from using the execheap access on a process.

*****  Plugin allow_execheap (53.1 confidence) suggests   ********************

If you do not think mprotheap should need to map heap memory that is both writable and executable.
Then you need to report a bug. This is a potentially dangerous access.
Do
contact your security administrator and report this issue.

*****  Plugin catchall_boolean (42.6 confidence) suggests   ******************

If you want to allow selinuxuser to execheap
Then you must tell SELinux about this by enabling the 'selinuxuser_execheap' boolean.

Do
setsebool -P selinuxuser_execheap 1

*****  Plugin catchall (5.76 confidence) suggests   **************************

If you believe that mprotheap should be allowed execheap access on processes labeled unconfined_t 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 'mprotheap' --raw | audit2allow -M my-mprotheap
# semodule -X 300 -i my-mprotheap.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                Unknown [ process ]
Source                        mprotheap
Source Path                   mprotheap
Port                          <Unknown>
Host                          localhost.localdomain
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.1-30.fc28.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain
                              4.16.14-300.fc28.x86_64 #1 SMP Tue Jun 5 16:23:44
                              UTC 2018 x86_64 x86_64
Alert Count                   3
First Seen                    2018-06-09 20:00:05 EDT
Last Seen                     2018-06-09 20:00:06 EDT
Local ID                      04b6d103-cb2b-4ef6-83b8-e892cb40553c

Raw Audit Messages
type=AVC msg=audit(1528588806.451:365): avc:  denied  { execheap } for  pid=7513 comm="mprotheap" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0


Hash: mprotheap,unconfined_t,unconfined_t,process,execheap