Description of problem:
1. (as normal user in a terminal) issue: ulimit -c unlimited
2. compile a programs that abort()s
3. run it

-> terminal output reads:

quit (core dumped)  ./a.out

actual result: no core file available in the CWD
expected result: a core file in the CWD

System jounal contains the AVC regarding getattr being denied. Also:

abrt-hook-ccpp[7370]: getpidcon_raw(7368): Permission denied

cat /proc/sys/kernel/core_pattern
|/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t %e %P %I

SELinux is preventing abrt-hook-ccpp from using the 'getattr' accesses on a process.

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

If you believe that abrt-hook-ccpp should be allowed getattr 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:
# grep abrt-hook-ccpp /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:abrt_dump_oops_t:s0
Target Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                Unknown [ process ]
Source                        abrt-hook-ccpp
Source Path                   abrt-hook-ccpp
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-154.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.2.5-300.fc23.x86_64 #1 SMP Tue
                              Oct 27 04:29:56 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-11-14 15:38:42 CET
Last Seen                     2015-11-14 15:38:42 CET
Local ID                      e673ce59-b726-46e6-9e5b-a4c056f78e94

Raw Audit Messages
type=AVC msg=audit(1447511922.821:724): avc:  denied  { getattr } for  pid=7370 comm="abrt-hook-ccpp" scontext=system_u:system_r:abrt_dump_oops_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process permissive=0


Hash: abrt-hook-ccpp,abrt_dump_oops_t,unconfined_t,process,getattr

Version-Release number of selected component:
selinux-policy-3.13.1-154.fc23.noarch

Additional info:
reporter:       libreport-2.6.3
hashmarkername: setroubleshoot
kernel:         4.2.5-300.fc23.x86_64
type:           libreport