Warning chmod: changing permissions of `<my Oracle home>/bin/extjobO': Operation not permitted DATAB

Hello all,

I get the following warning when I install Oracle Database Patch 28204707 - DATABASE PATCH SET UPDATE 11.2.0.4.181016 on a Server with Redhat 6.10 x86_64  and Oracle Database 11.2.0.4.0

[Oct 29, 2018 4:40:13 PM] [WARNING] OUI-67215:

                                    OPatch found the word "error" in the stderr of the make command.

                                    Please look at this stderr. You can re-run this make command.

                                    Stderr output:

                                    chmod: changing permissions of `<my Oracle home>/bin/extjobO': Operation not permitted

                                    make: [iextjob] Error 1 (ignored)

Is it safe to ignore this problem ?

opatch lsinv Shows the following Output:

opatch lsinv
Oracle Interim Patch Installer version 11.2.0.3.19
Copyright (c) 2018, Oracle Corporation.  All rights reserved.

Oracle Home       : /opt/oracle/product/11.2/db