Issue
The following BZ is reproducible on RHEL-9.3:
https://bugzilla.redhat.com/show_bug.cgi?id=2246805
What were you trying to do that didn't work?
The ntpd service runs in enforcing mode but the following messages appear in the systemd journal:
Oct 31 04:52:13 removed ntpd[5161]: DNS: dns_probe: nts.netnod.se:4460, cast_flags:1, flags:21901
Oct 31 04:52:14 removed ntpd[5161]: NTSc: DNS lookup of nts.netnod.se:4460 took 0.488 sec
Oct 31 04:52:14 removed ntpd[5161]: NTSc: connecting to nts.netnod.se:4460 => [2001:67c:2550:d::7]:4460
Oct 31 04:52:14 removed ntpd[5161]: NTSc: connect_TCP_socket: connect failed: Permission denied
Oct 31 04:52:14 removed ntpd[5161]: DNS: dns_check: processing nts.netnod.se:4460, 1, 21901
Oct 31 04:52:14 removed ntpd[5161]: DNS: dns_take_status: nts.netnod.se:4460=>error, 12
Please provide the package NVR for which bug is seen:
ntpsec-1.2.2a-1.el9.x86_64
selinux-policy-38.1.23-1.el9.noarch
selinux-policy-targeted-38.1.23-1.el9.noarch
How reproducible:
always
Steps to reproduce
get a RHEL-9.3 machine (targeted policy is active)
install the ntpsec package (from EPEL repository)
modify the ntp configuration to use at least 1 NTS server
start the ntpd service
search for SELinux denials
Expected results
No SELinux denials.
Actual results
----
type=PROCTITLE msg=audit(10/31/2023 04:52:14.458:379) : proctitle=/usr/sbin/ntpd -g -N -u ntp:ntp
type=SOCKADDR msg=audit(10/31/2023 04:52:14.458:379) : saddr={ saddr_fam=inet6 laddr=2001:67c:2550:d::7 lport=4460 }
type=SYSCALL msg=audit(10/31/2023 04:52:14.458:379) : arch=x86_64 syscall=connect success=no exit=EACCES(Permission denied) a0=0x4 a1=0x7f01d8001bd0 a2=0x1c a3=0x4000 items=0 ppid=1 pid=5161 auid=unset uid=ntp gid=ntp euid=ntp suid=ntp fsuid=ntp egid=ntp sgid=ntp fsgid=ntp tty=(none) ses=unset comm=ntpd exe=/usr/sbin/ntpd subj=system_u:system_r:ntpd_t:s0 key=(null)
type=AVC msg=audit(10/31/2023 04:52:14.458:379) : avc: denied { name_connect } for pid=5161 comm=ntpd dest=4460 scontext=system_u:system_r:ntpd_t:s0 tcontext=system_u:object_r:ntske_port_t:s0 tclass=tcp_socket permissive=0
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