Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
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Cause: SELinux prevents the proftpd service from mmap-ing the /run/proftpd/proftpd.delay file
Consequence: AVC denial for proftpd found in tier testing.
Fix: Allow ftpd map ftpd_var_run files
Result: No AVC
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 (selinux-policy bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:2483
Caught in enforcing mode: ---- type=PROCTITLE msg=audit(10/11/2022 15:02:41.403:406) : proctitle=/usr/sbin/proftpd --configtest type=MMAP msg=audit(10/11/2022 15:02:41.403:406) : fd=5 flags=MAP_SHARED type=SYSCALL msg=audit(10/11/2022 15:02:41.403:406) : arch=x86_64 syscall=mmap success=no exit=EACCES(Permission denied) a0=0x0 a1=0x3140 a2=PROT_READ|PROT_WRITE a3=MAP_SHARED items=0 ppid=1 pid=4508 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=proftpd exe=/usr/sbin/proftpd subj=system_u:system_r:ftpd_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(10/11/2022 15:02:41.403:406) : avc: denied { map } for pid=4508 comm=proftpd path=/run/proftpd/proftpd.delay dev="tmpfs" ino=1972 scontext=system_u:system_r:ftpd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:ftpd_var_run_t:s0 tclass=file permissive=0 ---- type=PROCTITLE msg=audit(10/11/2022 15:02:41.426:409) : proctitle=/usr/sbin/proftpd --nodaemon type=MMAP msg=audit(10/11/2022 15:02:41.426:409) : fd=5 flags=MAP_SHARED type=SYSCALL msg=audit(10/11/2022 15:02:41.426:409) : arch=x86_64 syscall=mmap success=no exit=EACCES(Permission denied) a0=0x0 a1=0x3140 a2=PROT_READ|PROT_WRITE a3=MAP_SHARED items=0 ppid=1 pid=4509 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=proftpd exe=/usr/sbin/proftpd subj=system_u:system_r:ftpd_t:s0-s0:c0.c1023 key=(null) type=AVC msg=audit(10/11/2022 15:02:41.426:409) : avc: denied { map } for pid=4509 comm=proftpd path=/run/proftpd/proftpd.delay dev="tmpfs" ino=1972 scontext=system_u:system_r:ftpd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:ftpd_var_run_t:s0 tclass=file permissive=0 ---- # journalctl -u proftpd -l --no-pager Oct 11 15:02:41 localhost.localdomain systemd[1]: Starting ProFTPD FTP Server... Oct 11 15:02:41 localhost.localdomain proftpd[4508]: Checking syntax of configuration file Oct 11 15:02:41 localhost.localdomain proftpd[4508]: daemon[4508] 127.0.0.1: mod_delay/0.8: error mapping DelayTable '/run/proftpd/proftpd.delay' into memory: Permission denied Oct 11 15:02:41 localhost.localdomain systemd[1]: Started ProFTPD FTP Server. Oct 11 15:02:41 localhost.localdomain proftpd[4509]: daemon[4509] 127.0.0.1: mod_delay/0.8: error mapping DelayTable '/run/proftpd/proftpd.delay' into memory: Permission denied Oct 11 15:02:41 localhost.localdomain proftpd[4509]: daemon[4509] 127.0.0.1: ProFTPD 1.3.8rc4 (devel) (built Thu Aug 4 2022 00:00:00 UTC) standalone mode STARTUP # ls -ilZ /run/proftpd/proftpd.delay 1972 -rw-r--r--. 1 root root system_u:object_r:ftpd_var_run_t:s0 12608 Oct 11 15:01 /run/proftpd/proftpd.delay # rpm -qa selinux\* proftp\* | sort proftpd-1.3.8-0.4.rc4.el9.x86_64 selinux-policy-34.1.43-1.el9.noarch selinux-policy-devel-34.1.43-1.el9.noarch selinux-policy-doc-34.1.43-1.el9.noarch selinux-policy-mls-34.1.43-1.el9.noarch selinux-policy-targeted-34.1.43-1.el9.noarch # rpm -qla proftp\* | grep -i delay /usr/share/doc/proftpd/modules/mod_delay.html #