Bug#1002721: marked as done (okular: segfaults when trying to open a signed PDF)

Package: okular
Version: 4:20.12.3-2
Severity: grave
Justification: renders package unusable

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

* What led up to the situation?
It hapens everytime I want to open a PDF file digitally signed by
others or by me.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Install another package like evince or open the PDF with a browser
(Chrome). It worked.

* Further information:

a) I include the segfault trace below

b) From the trace I can see that package libpkcs11-fnmtdnie may be involved. However other applications from bulls-eye work fine in case they use linpkcs-fnmtdnie

c) Information from linpkcs-fnmtdnie:

ii configuradorfnmt 1.0.1-0
ii libpkcs11-fnmtdnie 1.6.1

Segfault trace:

Application: Okular (okular), signal: Segmentation fault

[KCrash Handler]

#4 0x00007f8806727d7d in CTokenType::IsValidAtr(unsigned char*, unsigned long) () from /usr/lib/libpkcs11-fnmtdnie.so

#5 0x00007f880672f7b4 in CSlot::CheckToken[abi:cxx11]() () from /usr/lib/libpkcs11-fnmtdnie.so

#6 0x00007f880672fd9b in CSlot::SupportedTokenPresent() () from /usr/lib/libpkcs11-fnmtdnie.so

#7 0x00007f8806751474 in C_GetSlotInfo () from /usr/lib/libpkcs11-fnmtdnie.so

#8 0x00007f88281c3425 in ?? () from /usr/lib/x86_64-linux-gnu/libnss3.so

#9 0x00007f88281aa59f in ?? () from /usr/lib/x86_64-linux-gnu/libnss3.so

#10 0x00007f88281b797d in SECMOD_LoadModule () from /usr/lib/x86_64-linux-gnu/libnss3.so

#11 0x00007f88281b7ab8 in SECMOD_LoadModule () from /usr/lib/x86_64-linux-gnu/libnss3.so

#12 0x00007f882817f85b in ?? () from /usr/lib/x86_64-linux-gnu/libnss3.so

#13 0x00007f882817fdf9 in NSS_Init () from /usr/lib/x86_64-linux-gnu/libnss3.so

#14 0x00007f8807f0f789 in SignatureHandler::setNSSDir(GooString const&) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.102

#15 0x00007f8807f0fc79 in SignatureHandler::SignatureHandler(unsigned char*, int) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.102

#16 0x00007f8807df9382 in FormFieldSignature::validateSignature(bool, bool, long) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.102

#17 0x00007f88380fe40c in Poppler::FormFieldSignature::validate(int, QDateTime const&) const () from /usr/lib/x86_64-linux-gnu/libpoppler-qt5.so.1

#18 0x00007f88380fec60 in Poppler::FormFieldSignature::validate(Poppler::FormFieldSignature::ValidateOptions) const () from /usr/lib/x86_64-linux-gnu/libpoppler-qt5.so.1

#19 0x00007f883817e75b in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#20 0x00007f88381777a6 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#21 0x00007f8838177f39 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#22 0x00007f883817857d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#23 0x00007f883aa91473 in ?? () from /usr/lib/x86_64-linux-gnu/libOkular5Core.so.9

#24 0x00007f883aa91cc3 in Okular::Document::openDocument(QString const&, QUrl const&, QMimeType const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libOkular5Core.so.9

#25 0x00007f883abe9645 in Okular::Part::doOpenFile(QMimeType const&, QString const&, bool*) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#26 0x00007f883abea222 in Okular::Part::openFile() () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#27 0x00007f8847daa5d5 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5

#28 0x00007f8847dab363 in KParts::ReadOnlyPart::openUrl(QUrl const&) () from /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5

#29 0x00007f883abdbeb5 in Okular::Part::openUrl(QUrl const&, bool) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#30 0x000056043226acdf in ?? ()

#31 0x000056043226af3e in ?? ()

#32 0x0000560432263bec in ?? ()

#33 0x00005604322638d3 in ?? ()

#34 0x00007f884608ad0a in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6

#35 0x00005604322646da in ?? ()

[Inferior 1 (process 88548) detached]

-- System Information:
Debian Release: 11.2
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-9-amd64 (SMP w/4 CPU threads)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages okular depends on:
ii kinit 5.78.0-2
ii kio 5.78.0-5
ii libc6 2.31-13+deb11u2
ii libfreetype6 2.10.4+dfsg-1
ii libjpeg62-turbo 1:2.0.6-4
ii libkf5activities5 5.78.0-2
ii libkf5archive5 5.78.0-2
ii libkf5bookmarks5 5.78.0-2
ii libkf5codecs5 5.78.0-2
ii libkf5completion5 5.78.0-3
ii libkf5configcore5 5.78.0-4
ii libkf5configgui5 5.78.0-4
ii libkf5configwidgets5 5.78.0-2
ii libkf5coreaddons5 5.78.0-4
ii libkf5crash5 5.78.0-3
ii libkf5i18n5 5.78.0-2
ii libkf5iconthemes5 5.78.0-2
ii libkf5itemviews5 5.78.0-2
ii libkf5jobwidgets5 5.78.0-2
ii libkf5kexiv2-15.0.0 20.12.0-1
ii libkf5kiocore5 5.78.0-5
ii libkf5kiowidgets5 5.78.0-5
ii libkf5parts5 5.78.0-3
ii libkf5pty5 5.78.0-2
ii libkf5purpose-bin 5.78.0-2
ii libkf5purpose5 5.78.0-2
ii libkf5service-bin 5.78.0-2
ii libkf5service5 5.78.0-2
ii libkf5textwidgets5 5.78.0-2
ii libkf5wallet-bin 5.78.0-2
ii libkf5wallet5 5.78.0-2
ii libkf5widgetsaddons5 5.78.0-2
ii libkf5windowsystem5 5.78.0-2
ii libkf5xmlgui5 5.78.0-2
ii libokular5core9 4:20.12.3-2
ii libphonon4qt5-4 4:4.11.1-4
ii libpoppler-qt5-1 20.09.0-3.1
ii libqmobipocket2 4:20.12.0-1
ii libqt5core5a 5.15.2+dfsg-9
ii libqt5dbus5 5.15.2+dfsg-9
ii libqt5gui5 5.15.2+dfsg-9
ii libqt5printsupport5 5.15.2+dfsg-9
ii libqt5svg5 5.15.2-3
ii libqt5texttospeech5 5.15.2-2
ii libqt5widgets5 5.15.2+dfsg-9
ii libqt5xml5 5.15.2+dfsg-9
ii libspectre1 0.2.9-1
ii libstdc++6 10.2.1-6
ii phonon4qt5 4:4.11.1-4
ii zlib1g 1:1.2.11.dfsg-2

Versions of packages okular recommends:
ii cups-bsd 2.3.3op2-3+deb11u1

Versions of packages okular suggests:
ii ghostscript 9.53.3~dfsg-7+deb11u1
pn okular-extra-backends <none>
ii poppler-data 0.4.10-1
ii texlive-binaries 2020.20200327.54578-7
ii unrar 1:6.0.3-1

-- no debconf information