Public bug reported:
I have a two-machine network, both running 14.04.1 but mostly updated.
I cannot print to the remote CUPS-managed printer, except with a few
apps which see the printers directly via avahi (e.g. Evince).
I can print to the printer from the machine local to the printer.
/var/log/syslog on the remote machine shows:
ay 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server kernel: [47923.441374] type=1400
audit(1431474629.549:811): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/cache/cups/job.cache.N" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441413] type=1400
audit(1431474629.549:812): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441421] type=1400
audit(1431474629.549:813): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/" pid=7814 comm="cupsd"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441444] type=1400
audit(1431474629.549:814): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.706282] type=1400
audit(1431474629.817:815): apparmor="STATUS" operation="profile_replace"
profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=16874
comm="apparmor_parser"
May 13 09:50:29 server kernel: [47923.706551] type=1400
audit(1431474629.817:816): apparmor="STATUS" operation="profile_replace"
profile="unconfined" name="/usr/sbin/cupsd" pid=16874 comm="apparmor_parser"
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/access_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/page_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file "/var/log/cups/error_log"
- Permission denied
May 13 09:50:29 server kernel: [47923.710922] type=1400
audit(1431474629.821:817): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/access_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710931] type=1400
audit(1431474629.821:818): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/" pid=16884 comm="cupsd"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710964] type=1400
audit(1431474629.821:819): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/access_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710985] type=1400
audit(1431474629.821:820): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
Google search yields similar but significantly different bugs, and from years
ago.
** Affects: cups (Ubuntu)
Importance: Undecided
Status: New
** Tags: apparmor avahi cups mknod printing
** Summary changed:
- CUPS not allowed to mknod to /varlog by apparmor
+ CUPS not allowed to mknod to /var/log by apparmor
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to cups in Ubuntu.
https://bugs.launchpad.net/bugs/1454463
Title:
CUPS not allowed to mknod to /var/log by apparmor
Status in cups package in Ubuntu:
New
Bug description:
I have a two-machine network, both running 14.04.1 but mostly updated.
I cannot print to the remote CUPS-managed printer, except with a few
apps which see the printers directly via avahi (e.g. Evince).
I can print to the printer from the machine local to the printer.
/var/log/syslog on the remote machine shows:
ay 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server kernel: [47923.441374] type=1400
audit(1431474629.549:811): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/cache/cups/job.cache.N" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441413] type=1400
audit(1431474629.549:812): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441421] type=1400
audit(1431474629.549:813): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/" pid=7814 comm="cupsd"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.441444] type=1400
audit(1431474629.549:814): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=7814
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.706282] type=1400
audit(1431474629.817:815): apparmor="STATUS" operation="profile_replace"
profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=16874
comm="apparmor_parser"
May 13 09:50:29 server kernel: [47923.706551] type=1400
audit(1431474629.817:816): apparmor="STATUS" operation="profile_replace"
profile="unconfined" name="/usr/sbin/cupsd" pid=16874 comm="apparmor_parser"
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/access_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/page_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server cupsd: Unable to change ownership of "/var/log/cups" -
Permission denied
May 13 09:50:29 server cupsd: Unable to open log file
"/var/log/cups/error_log" - Permission denied
May 13 09:50:29 server kernel: [47923.710922] type=1400
audit(1431474629.821:817): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/access_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710931] type=1400
audit(1431474629.821:818): apparmor="DENIED" operation="chown"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/" pid=16884 comm="cupsd"
requested_mask="w" denied_mask="w" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710964] type=1400
audit(1431474629.821:819): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/access_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
May 13 09:50:29 server kernel: [47923.710985] type=1400
audit(1431474629.821:820): apparmor="DENIED" operation="mknod"
profile="/usr/sbin/cupsd" name="/data/var/log/cups/error_log" pid=16884
comm="cupsd" requested_mask="c" denied_mask="c" fsuid=0 ouid=0
Google search yields similar but significantly different bugs, and from years
ago.
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https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1454463/+subscriptions
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