Ubuntu
cups package

cupsd crashed with SIGSEGV in _ppdCacheCreateWithPPD()

Bug #957023 reported by Javier Rivera on 2012-03-16

18

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	cups (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

Cups keeps crashing since it last update.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: cups 1.5.2-8
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic i686
ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
CupsErrorLog:

Date: Thu Mar 15 20:09:42 2012
ExecutablePath: /usr/sbin/cupsd
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110829)
Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: Connection refused
MachineType: ASUSTeK Computer Inc. UL20A
Papersize: a4
PpdFiles:
CanonNova: Canon iR C2880/C3380 UFR II ver.2.2
CanonVella: Canon iR2270/iR2870 UFR II ver.2.2
Brother-QL-1060N: Brother QL-1060N CUPS v1.1
ProcAttrCurrent: /usr/sbin/cupsd (enforce)
ProcCmdline: /usr/sbin/cupsd -F
ProcEnviron:
PATH=(custom, no user)
TERM=linux
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=39bceedc-6da5-45fb-ac76-fbc5b69e23cf ro quiet splash vt.handoff=7
SegvAnalysis:
Segfault happened at: 0x85695d <_ppdCacheCreateWithPPD+781>: mov 0xc(%eax),%edx
PC (0x0085695d) ok
source "0xc(%eax)" (0x0000000c) not located in a known VMA region (needed readable region)!
destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: cups
StacktraceTop:
_ppdCacheCreateWithPPD () from /usr/lib/i386-linux-gnu/libcups.so.2
?? ()
?? ()
?? ()
main ()
Title: cupsd crashed with SIGSEGV in _ppdCacheCreateWithPPD()
UpgradeStatus: Upgraded to precise on 2012-02-03 (41 days ago)
UserGroups:

dmi.bios.date: 08/31/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 208
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UL20A
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr208:bd08/31/2010:svnASUSTeKComputerInc.:pnUL20A:pvr1.0:rvnASUSTeKComputerInc.:rnUL20A:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UL20A
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
modified.conffile..etc.cups.cupsd.conf: [deleted]

Tags:

Related branches

lp:ubuntu/precise/cups

Revision history for this message

Javier Rivera (javier-isotecsl) wrote on 2012-03-16:

#1

BootDmesg.txt Edit (54.9 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (3.7 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.8 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (981 bytes, text/plain; charset="utf-8")
Locale.txt Edit (328 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (21.8 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (746 bytes, text/plain; charset="utf-8")
PrintingPackages.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.6 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.6 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (13.0 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.2 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (737 bytes, text/plain; charset="utf-8")
Registers.txt Edit (481 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (343 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (387 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (124.4 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (267.8 KiB, text/plain; charset="utf-8")

visibility:

private → public

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-16:

#2

StacktraceTop:
_ppdCacheCreateWithPPD (ppd=0x21898878) at ppd-cache.c:758
load_ppd (p=0x21890a28) at printers.c:4090
cupsdSetPrinterAttrs (p=0x21890a28) at printers.c:2431
cupsdLoadAllPrinters () at printers.c:1072
cupsdReadConfiguration () at conf.c:1482

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-16: Stacktrace.txt

#3

Stacktrace.txt Edit (12.2 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-16: ThreadStacktrace.txt

#4

ThreadStacktrace.txt Edit (12.2 KiB, text/plain)

Changed in cups (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-i386-retrace

Revision history for this message

Javier Rivera (javier-isotecsl) wrote on 2012-03-16:

#5

Deleting /var/cache/cups and reinstalling it solved the crash for me.

Changed in cups (Ubuntu):
status:	New → Invalid
status:	Invalid → New

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-17:

#6

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in cups (Ubuntu):
status:	New → Confirmed

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-17:

#7

Can you attach all your PPD files in /etc/cups/ppd/?

Please attach them one by one, not compressing or packaging them. Thanks.

Changed in cups (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Javier Rivera (javier-isotecsl) wrote on 2012-03-18:

#8

No. I mean, I can, but now it's working (see #5) and I don't know what I had there when it was segfaulting. I also deleted and recreated all my /etc/cups dir.

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-18:

#9

OK, the problem was probably some corruption of a file in /var/cache/cups/.

Revision history for this message

Javier Rivera (javier-isotecsl) wrote on 2012-03-19:

#10

I agree. Should this bug be closed?. How? Invalid?.

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-19:

#11

I have investigated your stack trace in the last days and found a simple patch. This I have reported upstream

http://www.cups.org/str.php?L4049

If upstream accepts the patch or comes with another fix, I will apply it to Precise.

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-19:

#12

I have committed the patch to the BZR repository of CUPS at Debian now. A Precise package will come most probably tomorrow.

Changed in cups (Ubuntu):
status:	Incomplete → Fix Released
status:	Fix Released → Fix Committed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-20:

#13

This bug was fixed in the package cups - 1.5.2-8bzr1

---------------
cups (1.5.2-8bzr1) precise; urgency=low

  * debian/patches/ppd-cache-fix-crash.patch: Added NULL check to fix crash
    of cupsd on corrupted data in /var/cache/cups/ (LP: #957023, CUPS STR
    #4049).

* debian/patches/cups-avahi.patch: Refreshed with quilt.
-- Till Kamppeter <email address hidden> Mon, 19 Mar 2012 10:01:01 +0100

Changed in cups (Ubuntu):
status:	Fix Committed → Fix Released

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