Description of problem:
Currently, the permissions of the shared memory segment created by the SHM refclock are set from the unit number. Units 0 and 1 are created with owner-only access, units 2 and above have world access. This is a problem in applications where more units than two are needed and world access would be a security problem.
Upstream bug report with a patch:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. add "server 127.127.28.2" to ntp.conf
2. restart ntpd
3. run ipcs
4. check permission of the memory segment with key 0x4e545032
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.