[okular] [Bug 471422] New: Okular crashes when opening specific PDF files

[Yann Salmon]

https://bugs.kde.org/show_bug.cgi?id=471422

            Bug ID: 471422
           Summary: Okular crashes when opening specific PDF files
    Classification: Applications
           Product: okular
           Version: 21.12.3
          Platform: Kubuntu
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: contact at yannsalmon.fr
  Target Milestone: ---

SUMMARY

Okular crashes when I try to open some specific PDF files. It does not with
other files.


STEPS TO REPRODUCE
1. Download file from
<https://www.citescolaire-emilezola-rennes.ac-rennes.fr/sites/citescolaire-emilezola-rennes.ac-rennes.fr/IMG/pdf/2019-2020_lycee_acte_no_1_admission_en_non-valeur_.pdf>
2. Open file in Okular.

OBSERVED RESULT

Immediate crash.

EXPECTED RESULT

PDF file to be rendered, or an error message to be displayed if file is faulty.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-75-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Xeon® CPU E3-1245 v5 @ 3.50GHz
Memory: 15.5 Gio of RAM
Graphics Processor: NVIDIA GeForce GTX 1650/PCIe/SSE2

ADDITIONAL INFORMATION

The crash happens with all the files the link to which is labelled "Acte n°" on
<https://www.citescolaire-emilezola-rennes.ac-rennes.fr/spip.php?article623>
but with no other file from that page or other pages. I suspect there is some
kind of signature (the files are acts from an high school administrative board)
that is buggy.

The bug system suggested possible duplicates, and I tried to open the related
PDF files, but none of them triggers a crash, so I suspect this is not the same
problem.

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