Red Hat Bugzilla – Bug 467481
Cups update breaks printing via samba
Last modified: 2009-07-14 10:55:28 EDT
Description of problem: After upgrading cups on a system with SElinux set to enforcing mode, printing from SMB clients no longer works. AVC alerts are generated. (audit.log contents listed below in "Additional info" section) Version-Release number of selected component (if applicable): cups-1.3.9-1.fc9.i386 How reproducible: Install latest patches/updates on a system with SMB printing enabled and with SElinux set to enforcing mode. Steps to Reproduce: 1. Have samba printing correctly to a cups printer. 2. Install cups update 3. Unable to print despite reboot Actual results: Can't print. AVC/SElinux alerts generated. Expected results: Can print. Additional info: /var/log/audit/audit.log has: type=AVC msg=audit(1224260870.479:1181): avc: denied { connectto } for pid=23825 comm="smbd" path="/var/run/cups/cups.sock" scontext=unconfined_u:system_r:smbd_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_stream_socket type=SYSCALL msg=audit(1224260870.479:1181): arch=40000003 syscall=102 success=no exit=-13 a0=3 a1=bfb9b410 a2=2b0608 a3=b94643bc items=0 ppid=23670 pid=23825 auid=1000 uid=0 gid=0 euid=0 suid=1000 fsuid=0 egid=0 sgid=1000 fsgid=0 tty=(none) ses=1 comm="smbd" exe="/usr/sbin/smbd" subj=unconfined_u:system_r:smbd_t:s0 key=(null) Can use audit2allow/semodule to make it work, however, this appears to give samba the ability to connect to *any* stream socket and not just the cups socket. restorecon -r /var/run/cups/cups.sock does not correct problem.
Does 'chcon -t cupsd_var_run_t /var/run/cups/cups.sock' fix it? I haven't been able to reproduce this yet.
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Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.