When there is a crash on the system, kdump generates the dmesg file with incorrect permissions.
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1937605]
Created kexec-tools tracking bugs for this issue:
Affects: fedora-all [bug 1937614]
The kexec service can be disabled until the kexec-tools package are updated on the system. No reboot is required for these changes to take effect.
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2021:4404 https://access.redhat.com/errata/RHSA-2021:4404
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):