Description of problem:
The problem was created when the gnome system had just started, immediately after logon to Fedora 33 gnome. I have no more information to add.
SELinux is preventing gdb from 'read' accesses on the file user.

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

If you believe that gdb should be allowed read access on the user 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 'gdb' --raw | audit2allow -M my-gdb
# semodule -X 300 -i my-gdb.pp

Additional Information:
Source Context                system_u:system_r:abrt_t:s0-s0:c0.c1023
Target Context                system_u:object_r:xdm_var_lib_t:s0
Target Objects                user [ file ]
Source                        gdb
Source Path                   gdb
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-3.14.6-30.fc33.noarch
Local Policy RPM              selinux-policy-targeted-3.14.6-30.fc33.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.9.10-200.fc33.x86_64 #1 SMP Mon
                              Nov 23 18:12:50 UTC 2020 x86_64 x86_64
Alert Count                   1
First Seen                    2020-11-30 07:49:11 CET
Last Seen                     2020-11-30 07:49:11 CET
Local ID                      132ec41e-4d3b-484c-8c62-01d86b3926bd

Raw Audit Messages
type=AVC msg=audit(1606718951.475:743): avc:  denied  { read } for  pid=2785 comm="gdb" name="user" dev="dm-0" ino=1573077 scontext=system_u:system_r:abrt_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_var_lib_t:s0 tclass=file permissive=0


Hash: gdb,abrt_t,xdm_var_lib_t,file,read

Version-Release number of selected component:
selinux-policy-targeted-3.14.6-30.fc33.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.14.0
hashmarkername: setroubleshoot
kernel:         5.9.10-200.fc33.x86_64
type:           libreport