Bug#961345: cups: daemon crashes with invalid free()
Package: cups
Version: 2.2.10-6+deb10u3
Severity: normal
After upgrading to Debian 10, the CUPS daemon keeps crashing when I try to
print. This did not happen with the version in Debian 9.
$ journalctl -u cups
-- Logs begin at Thu 2020-05-21 14:59:37 CET, end at Sat 2020-05-23 14:52:11 CET. --
maj 21 14:59:38 perkele systemd[1]: Started CUPS Scheduler.
maj 21 19:47:12 perkele cupsd[931]: free(): invalid pointer
maj 21 19:47:12 perkele systemd[1]: cups.service: Main process exited, code=killed, status=6/ABRT
maj 21 19:47:12 perkele systemd[1]: cups.service: Failed with result 'signal'.
maj 21 19:47:13 perkele systemd[1]: cups.service: Service RestartSec=100ms expired, scheduling restart.
maj 21 19:47:13 perkele systemd[1]: cups.service: Scheduled restart job, restart counter is at 1.
maj 21 19:47:13 perkele systemd[1]: Stopped CUPS Scheduler.
maj 21 19:47:13 perkele systemd[1]: Started CUPS Scheduler.
maj 21 23:00:06 perkele systemd[1]: Stopping CUPS Scheduler...
maj 21 23:00:06 perkele systemd[1]: cups.service: Succeeded.
maj 21 23:00:06 perkele systemd[1]: Stopped CUPS Scheduler.
maj 21 23:00:06 perkele systemd[1]: Started CUPS Scheduler.
maj 22 23:00:07 perkele systemd[1]: Stopping CUPS Scheduler...
maj 22 23:00:07 perkele systemd[1]: cups.service: Succeeded.
maj 22 23:00:07 perkele systemd[1]: Stopped CUPS Scheduler.
maj 22 23:00:07 perkele systemd[1]: Started CUPS Scheduler.
maj 23 14:46:08 perkele cupsd[32076]: free(): invalid pointer
maj 23 14:46:08 perkele systemd[1]: cups.service: Main process exited, code=killed, status=6/ABRT
maj 23 14:46:38 perkele systemd[1]: cups.service: Failed with result 'signal'.
maj 23 14:46:39 perkele systemd[1]: cups.service: Service RestartSec=100ms expired, scheduling restart.
maj 23 14:46:39 perkele systemd[1]: cups.service: Scheduled restart job, restart counter is at 1.
maj 23 14:46:39 perkele systemd[1]: Stopped CUPS Scheduler.
maj 23 14:46:39 perkele systemd[1]: Started CUPS Scheduler.
maj 23 14:47:35 perkele cupsd[5698]: free(): invalid pointer
maj 23 14:47:35 perkele systemd[1]: cups.service: Main process exited, code=killed, status=6/ABRT
maj 23 14:47:35 perkele systemd[1]: cups.service: Failed with result 'signal'.
maj 23 14:47:35 perkele systemd[1]: cups.service: Service RestartSec=100ms expired, scheduling restart.
maj 23 14:47:35 perkele systemd[1]: cups.service: Scheduled restart job, restart counter is at 2.
maj 23 14:47:35 perkele systemd[1]: Stopped CUPS Scheduler.
maj 23 14:47:35 perkele systemd[1]: Started CUPS Scheduler.
maj 23 14:47:38 perkele cupsd[5797]: free(): invalid pointer
maj 23 14:47:38 perkele systemd[1]: cups.service: Main process exited, code=killed, status=6/ABRT
maj 23 14:48:02 perkele systemd[1]: cups.service: Failed with result 'signal'.
maj 23 14:48:03 perkele systemd[1]: cups.service: Service RestartSec=100ms expired, scheduling restart.
maj 23 14:48:03 perkele systemd[1]: cups.service: Scheduled restart job, restart counter is at 3.
maj 23 14:48:03 perkele systemd[1]: Stopped CUPS Scheduler.
maj 23 14:48:03 perkele systemd[1]: Started CUPS Scheduler.
maj 23 14:49:12 perkele cupsd[5838]: free(): invalid pointer
maj 23 14:49:12 perkele systemd[1]: cups.service: Main process exited, code=killed, status=6/ABRT
maj 23 14:50:42 perkele systemd[1]: cups.service: State 'stop-sigterm' timed out. Killing.
maj 23 14:50:42 perkele systemd[1]: cups.service: Killing process 5845 (pdftops) with signal SIGKILL.
maj 23 14:50:42 perkele systemd[1]: cups.service: Killing process 5846 (http) with signal SIGKILL.
maj 23 14:50:42 perkele systemd[1]: cups.service: Killing process 5850 (pstops) with signal SIGKILL.
maj 23 14:50:42 perkele systemd[1]: cups.service: Failed with result 'signal'.
maj 23 14:50:42 perkele systemd[1]: cups.service: Service RestartSec=100ms expired, scheduling restart.
maj 23 14:50:42 perkele systemd[1]: cups.service: Scheduled restart job, restart counter is at 4.
maj 23 14:50:42 perkele systemd[1]: Stopped CUPS Scheduler.
maj 23 14:50:42 perkele systemd[1]: Started CUPS Scheduler.
$ cupsctl
_debug_logging=0
_remote_admin=0
_remote_any=0
_share_printers=0
_user_cancel_any=0
BrowseLocalProtocols=dnssd
DefaultAuthType=Basic
JobPrivateAccess=default
JobPrivateValues=default
MaxLogSize=0
SubscriptionPrivateAccess=default
SubscriptionPrivateValues=default
WebInterface=Yes
-- System Information:
Debian Release: 10.4
APT prefers stable
APT policy: (700, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.19.0-9-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=sv, LC_CTYPE=sv (charmap=UTF-8) (ignored: LC_ALL set to sv_SE.utf8), LANGUAGE=sv_SE.utf8:sv:nb_NO.utf8:nb:da_DK.utf8:da:nn_NO.utf8:nn:en_GB.utf8:en_US.utf8:en (charmap=UTF-8) (ignored: LC_ALL set to sv_SE.utf8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages cups depends on:
ii cups-client 2.2.10-6+deb10u3
ii cups-common 2.2.10-6+deb10u3
ii cups-core-drivers 2.2.10-6+deb10u3
ii cups-daemon 2.2.10-6+deb10u3
ii cups-filters 1.21.6-5
ii cups-ppdc 2.2.10-6+deb10u3
ii cups-server-common 2.2.10-6+deb10u3
ii debconf [debconf-2.0] 1.5.71
ii ghostscript 9.27~dfsg-2+deb10u3
ii libavahi-client3 0.7-4+b1
ii libavahi-common3 0.7-4+b1
ii libc6 2.28-10
ii libcups2 2.2.10-6+deb10u3
ii libcupsimage2 2.2.10-6+deb10u3
ii libgcc1 1:8.3.0-6
ii libstdc++6 8.3.0-6
ii libusb-1.0-0 2:1.0.22-2
ii poppler-utils 0.71.0-5
ii procps 2:3.3.15-2
Versions of packages cups recommends:
ii avahi-daemon 0.7-4+b1
ii colord 1.4.3-4
ii cups-filters [ghostscript-cups] 1.21.6-5
ii printer-driver-gutenprint 5.3.1-7
Versions of packages cups suggests:
ii cups-bsd 2.2.10-6+deb10u3
pn cups-pdf <none>
ii foomatic-db-compressed-ppds [foomatic-db] 20181217-2
ii hplip 3.18.12+dfsg0-2
ii printer-driver-hpcups 3.18.12+dfsg0-2
pn smbclient <none>
ii udev 241-7~deb10u4
-- debconf information:
cupsys/raw-print: true
cupsys/backend: lpd, socket, usb, snmp, dnssd
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