Thanks for all the info, it is as I expected, your cupsd.conf has "Browsing No" because you do not use printer sharing. Then the DNS-SD host name is not set in the daemon's internal variable DNSSDHostName and this variable I compared with the host name of the URI of the potential new queue to see whether I have to change it to "localhost" for the case that the printer is a local service (IPP-over-USB, Printer Application, ...). This caused the crash. Now I have added a fallback to the internal variable ServerName if DNSSDHostName is NULL.
I could reproduce the bug by doing the command cupsctl --no-share-printers (I had printer sharing on for my OpenPrinting work) and re-trying to access an IPP printer through GTK's print dialog which caused the crash then for me. I have the fix now ready and with it the crash goes away. I will update the Pull Request on CUPS upstream (https://github.com/OpenPrinting/cups/pull/353) and also the patch on the Ubuntu package. Thanks for the bug report. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1965112 Title: cupsd crashed with SIGSEGV in __strcmp_evex() Status in cups package in Ubuntu: In Progress Bug description: trying to print with jammy 20220316, to a network printer ProblemType: Crash DistroRelease: Ubuntu 22.04 Package: cups-daemon 2.4.1op1-1ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-22.22-generic 5.15.19 Uname: Linux 5.15.0-22-generic x86_64 ApportVersion: 2.20.11-0ubuntu79 Architecture: amd64 CasperMD5CheckResult: pass Date: Wed Mar 16 11:00:00 2022 ExecutablePath: /usr/sbin/cupsd InstallationDate: Installed on 2022-02-28 (15 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220226) Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: No destinations added. MachineType: LENOVO 20Y5CTO1WW Papersize: a4 ProcAttrCurrent: /usr/sbin/cupsd (enforce) ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-5.15.0-22-generic root=UUID=229d75cc-2aa3-4f8f-b5bd-d310f6218a3f ro quiet splash vt.handoff=7 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-22-generic root=UUID=229d75cc-2aa3-4f8f-b5bd-d310f6218a3f ro quiet splash vt.handoff=7 RebootRequiredPkgs: Error: path contained symlinks. SegvAnalysis: Segfault happened at: 0x7fdde6d9698c <__strcmp_evex+44>: vpcmpeqb (%rsi),%ymm17,%k1{%k2} PC (0x7fdde6d9698c) ok source "(%rsi)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%ymm17" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: cups StacktraceTop: __strcmp_evex () at ../sysdeps/x86_64/multiarch/strcmp-evex.S:139 ?? () ?? () ?? () __libc_start_call_main (main=main@entry=0x55ea813993a0, argc=argc@entry=2, argv=argv@entry=0x7fffb71a6eb8) at ../sysdeps/nptl/libc_start_call_main.h:58 Title: cupsd crashed with SIGSEGV in __strcmp_evex() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A dmi.bios.date: 10/14/2021 dmi.bios.release: 1.11 dmi.bios.vendor: LENOVO dmi.bios.version: N40ET29W (1.11 ) dmi.board.asset.tag: Not Available dmi.board.name: 20Y5CTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0T08861 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.11 dmi.modalias: dmi:bvnLENOVO:bvrN40ET29W(1.11):bd10/14/2021:br1.11:efr1.11:svnLENOVO:pn20Y5CTO1WW:pvrThinkPadX1ExtremeGen4i:rvnLENOVO:rn20Y5CTO1WW:rvrSDK0T08861WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20Y5_BU_Think_FM_ThinkPadX1ExtremeGen4i: dmi.product.family: ThinkPad X1 Extreme Gen 4i dmi.product.name: 20Y5CTO1WW dmi.product.sku: LENOVO_MT_20Y5_BU_Think_FM_ThinkPad X1 Extreme Gen 4i dmi.product.version: ThinkPad X1 Extreme Gen 4i dmi.sys.vendor: LENOVO separator: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1965112/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
