Description of problem: Trying to print a test page on the printer (usb connection): Brother DCP-L2520DW. Drivers used: http://download.brother.com/welcome/dlf101757/dcpl2520dwlpr-3.2.0-1.i386.rpm http://download.brother.com/welcome/dlf101758/dcpl2520dwcupswrapper-3.2.0-1.i386.rpm I had 'printers' window open, and tried adding/removing the same printer, and changing it's driver between the one above and 'generic text-only printer' which was active by default. I do not have a consistent way to reproduce the crash, but it did happen multiple times, and persisted after reboots and driver reinstalls. Feel free to contact me about this strust+erqungohtmvyyn Version-Release number of selected component: control-center-3.26.2-2.fc27 Additional info: reporter: libreport-2.9.3 backtrace_rating: 4 cmdline: gnome-control-center printers crash_function: g_malloc0 executable: /usr/bin/gnome-control-center journald_cursor: s=e12f40e70b6042449afdd72735a7b7c2;i=2bb9e;b=eba333d2ba18454ebc25035c54a31fba;m=745e84e1;t=560986c0bdbfa;x=216af04a7c4a3a7d kernel: 4.14.3-300.fc27.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000
Created attachment 1369604 [details] File: backtrace
Created attachment 1369605 [details] File: cgroup
Created attachment 1369606 [details] File: core_backtrace
Created attachment 1369607 [details] File: cpuinfo
Created attachment 1369608 [details] File: dso_list
Created attachment 1369609 [details] File: environ
Created attachment 1369610 [details] File: limits
Created attachment 1369611 [details] File: maps
Created attachment 1369612 [details] File: mountinfo
Created attachment 1369613 [details] File: open_fds
Created attachment 1369614 [details] File: proc_pid_status
Similar problem has been detected: trying to set-up my printer after I installed the divers provided by Brother via $> dnf localinstall mfc9140cdncupswrapper-1.1.4-0.i386.rpm mfc9140cdnlpr-1.1.2-1.i386.rpm my printer appeared automagically into my setup as cups printer from there I tried to send a test page and the settings applet crushed and I got the abrt message here the status reported by systemctl: [root@lacktop Downloads]# systemctl status -l cups.service ● cups.service - CUPS Scheduler Loaded: loaded (/usr/lib/systemd/system/cups.service; disabled; vendor preset: disabled) Active: active (running) since Sun 2018-01-07 09:22:39 CET; 1h 18min ago Docs: man:cupsd(8) Main PID: 1859 (cupsd) Status: "Scheduler is running..." Tasks: 3 (limit: 4915) CGroup: /system.slice/cups.service ├─1859 /usr/sbin/cupsd -l ├─3438 /usr/lib/cups/notifier/dbus dbus:// └─5404 /usr/lib/cups/notifier/dbus dbus:// Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: /opt/brother/Printers/mfc9140cdn/lpd/filtermfc9140cdn: line 63: 6009 Done eval cat $INPUT_TEMP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: 6010 | $PSCONV $PSCONV_OP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: 6011 Segmentation fault | $BRCONV $BRCONV_OP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: PID 5975 (/usr/lib/cups/filter/brother_lpdwrapper_mfc9140cdn) exited with no errors. Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: PID 5976 (/usr/lib/cups/backend/dnssd) exited with no errors. Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: time-at-completed=1515318040 Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: Job completed. Jan 07 10:40:41 lacktop.acasa.net cupsd[1859]: Unloading... Jan 07 10:40:44 lacktop.acasa.net cupsd[1859]: Loading attributes... Jan 07 10:40:44 lacktop.acasa.net cupsd[1859]: cupsdLoadJob: job->file_time=1515404440, time-at-completed=1515318040, JobFiles=86400 journalctl reports a selinux issue: Jan 07 10:40:40 lacktop.acasa.net audit[5997]: AVC avc: denied { execmem } for pid=5997 comm="brcupsconfpt1" scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 Jan 07 10:40:40 lacktop.acasa.net audit[5997]: ANOM_ABEND auid=4294967295 uid=4 gid=7 ses=4294967295 subj=system_u:system_r:cupsd_t:s0-s0:c0.c1023 pid=5997 comm="brcupsconfpt1" exe="/opt/brother/Printers/mfc9140 Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: /usr/lib/cups/filter/brother_lpdwrapper_mfc9140cdn: line 133: 5997 Segmentation fault /opt/brother/Printers/mfc9140cdn/cupswrapper/brcupsconfpt1 MFC9140CDN $P Jan 07 10:40:40 lacktop.acasa.net audit[6011]: AVC avc: denied { execmem } for pid=6011 comm="brmfc9140cdnfil" scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:cupsd_t:s0-s0:c0.c10 Jan 07 10:40:40 lacktop.acasa.net audit[6011]: ANOM_ABEND auid=4294967295 uid=4 gid=7 ses=4294967295 subj=system_u:system_r:cupsd_t:s0-s0:c0.c1023 pid=6011 comm="brmfc9140cdnfil" exe="/opt/brother/Printers/mfc91 Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: /opt/brother/Printers/mfc9140cdn/lpd/filtermfc9140cdn: line 63: 6009 Done eval cat $INPUT_TEMP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: 6010 | $PSCONV $PSCONV_OP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: 6011 Segmentation fault | $BRCONV $BRCONV_OP Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: PID 5975 (/usr/lib/cups/filter/brother_lpdwrapper_mfc9140cdn) exited with no errors. Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: PID 5976 (/usr/lib/cups/backend/dnssd) exited with no errors. Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: time-at-completed=1515318040 Jan 07 10:40:40 lacktop.acasa.net cupsd[1859]: Job completed. Jan 07 10:40:41 lacktop.acasa.net cupsd[1859]: Unloading... Jan 07 10:40:43 lacktop.acasa.net dbus-daemon[834]: [system] Activating service name='org.fedoraproject.Setroubleshootd' requested by ':1.160' (uid=0 pid=811 comm="/usr/sbin/sedispatch " label="system_u:system_r Jan 07 10:40:43 lacktop.acasa.net dbus-daemon[834]: [system] Successfully activated service 'org.fedoraproject.Setroubleshootd' Jan 07 10:40:44 lacktop.acasa.net setroubleshoot[6054]: SELinux is preventing brcupsconfpt1 from using the execmem access on a process. For complete SELinux messages run: sealert -l 2c364abd-5fcb-4462-b4b5-8ceee Jan 07 10:40:44 lacktop.acasa.net python3[6054]: SELinux is preventing brcupsconfpt1 from using the execmem access on a process. ***** Plugin catchall_boolean (89.3 confidence) suggests ****************** If you want to allow cups to execmem Then you must tell SELinux about this by enabling the 'cups_execmem' boolean. Do setsebool -P cups_execmem 1 ***** Plugin catchall (11.6 confidence) suggests ************************** If you believe that brcupsconfpt1 should be allowed execmem access on processes labeled cupsd_t by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'brcupsconfpt1' --raw | audit2allow -M my-brcupsconfpt1 # semodule -X 300 -i my-brcupsconfpt1.pp Jan 07 10:40:44 lacktop.acasa.net setroubleshoot[6054]: SELinux is preventing brcupsconfpt1 from using the execmem access on a process. For complete SELinux messages run: sealert -l 2c364abd-5fcb-4462-b4b5-8ceee Jan 07 10:40:44 lacktop.acasa.net python3[6054]: SELinux is preventing brcupsconfpt1 from using the execmem access on a process. ***** Plugin catchall_boolean (89.3 confidence) suggests ****************** If you want to allow cups to execmem Then you must tell SELinux about this by enabling the 'cups_execmem' boolean. Do setsebool -P cups_execmem 1 ***** Plugin catchall (11.6 confidence) suggests ************************** If you believe that brcupsconfpt1 should be allowed execmem access on processes labeled cupsd_t by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'brcupsconfpt1' --raw | audit2allow -M my-brcupsconfpt1 # semodule -X 300 -i my-brcupsconfpt1.pp Jan 07 10:40:44 lacktop.acasa.net cupsd[1859]: Loading attributes... Jan 07 10:40:44 lacktop.acasa.net cupsd[1859]: cupsdLoadJob: job->file_time=1515404440, time-at-completed=1515318040, JobFiles=86400 Jan 07 10:41:45 lacktop.acasa.net cupsd[1859]: Unloading... Jan 07 10:42:34 lacktop.acasa.net cupsd[1859]: PID 5404 (/usr/lib/cups/notifier/dbus) exited with no errors. reporter: libreport-2.9.3 backtrace_rating: 4 cmdline: gnome-control-center --overview crash_function: g_malloc0 executable: /usr/bin/gnome-control-center journald_cursor: s=185f7807c60748448e5498adfb74a352;i=3bc5;b=e2ba9476b6824c2d8edc5e16eb001010;m=10be03e26;t=5622c6d28b26c;x=fb30664b4c7ded34 kernel: 4.14.11-300.fc27.x86_64 package: control-center-3.26.2-2.fc27 reason: gnome-control-center killed by SIGSEGV rootdir: / runlevel: N 5 type: CCpp uid: 1001
After I set the selinux flag: setsebool -P cups_execmem 1 and reboot (well, the reboot was not necessarily related but I couldn't check before) it worked
*** Bug 1533197 has been marked as a duplicate of this bug. ***
Similar problem has been detected: I was trying to update my printer settings and the settings UI crashed. The new UI seems less user friendly than the previous version, it makes it harder to find information like IP addresses. Out of a list of four printers listed as "MP-C504". I added the correct network printer, Ricoh MP-C4504, successfully. I deleted a previous printer displaying the same name. I had to look at CUPS admin tool (....) to see the MAC address was different. The information hidden from the user makes it impossible to tell printers apart otherwise, and searching by IP address doesn't always seem to work. I was also checking for job status of a test page printing. This printed successfully, after the UI had crashed. reporter: libreport-2.9.3 backtrace_rating: 4 cmdline: gnome-control-center --overview crash_function: g_malloc0 executable: /usr/bin/gnome-control-center journald_cursor: s=a98d9ac6f1e1451cad9bf3595af49893;i=6cef0;b=5ed41a1c8ca942a6be3b84440fb5986e;m=46ef0c6e0;t=5685ba9d235f2;x=50f0043a7d8faaf6 kernel: 4.15.10-300.fc27.x86_64 package: 1:control-center-3.26.2-2.fc27 reason: gnome-control-center killed by SIGABRT rootdir: / runlevel: N 5 type: CCpp uid: 3767
*** Bug 1565224 has been marked as a duplicate of this bug. ***
Similar problem has been detected: run my fedora 26 open slack and thunderbird crash gnome reporter: libreport-2.9.3 backtrace_rating: 4 cmdline: gnome-control-center --overview crash_function: g_malloc0 executable: /usr/bin/gnome-control-center journald_cursor: s=7a67b7f3a03f4ac785074c1dae2621ff;i=d6d1;b=835cc1b2c51d4cd09034c8e9f10dd7c2;m=19834a7c4;t=56a083db5f998;x=98dd79f14c17471e kernel: 4.14.6-300.fc27.x86_64 package: 1:control-center-3.26.2-2.fc27 reason: gnome-control-center killed by SIGABRT rootdir: / runlevel: N 5 type: CCpp uid: 1000
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Fedora 27 changed to end-of-life (EOL) status on 2018-11-30. Fedora 27 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. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.