[kontact] [Bug 504483] New: Crash after selecting a signed mail

[Johannes Ranke]

https://bugs.kde.org/show_bug.cgi?id=504483

            Bug ID: 504483
           Summary: Crash after selecting a signed mail
    Classification: Applications
           Product: kontact
      Version First unspecified
       Reported In:
          Platform: Debian stable
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: jranke at uni-bremen.de
  Target Milestone: ---

Application: kontact (5.22.3 (22.12.3))

Qt Version: 5.15.8
Frameworks Version: 5.103.0
Operating System: Linux 6.1.0-31-amd64 x86_64
Windowing System: Wayland
Distribution: Debian GNU/Linux 12 (bookworm)
DrKonqi: 5.27.5 [CoredumpBackend]

-- Information about the crash:
This is standard kontact on Debian stable. The version information from the
about page is  5.22.3 (22.12.3)

When I select a signed mail from a Debian developer writing about a security
update, the pane showing the mail content freezes. In that pane I only see the
messages
"Bittte warten Sie, während die Signatur überprüft wird...
Ende der signierten Nachricht"

i.e. "Please wait while the signature is checked...
End of the signed message"

without the message content. I can select other mails, but the pane stays
frozen and does not show the contents of the selecte mail, whether it is signed
or not. 

When I close kontact by klicking the cross in the top right corner of the
kontact window, I get a message "Kontact wurde unerwartet beendet", with the
possibility to restart (which works) or write a bug report (which got me here).
This happens every time I select such an email. I also tried an email from a
different domain, this time the contents of the mail are displayed between the
two cited messages, but the program freezes in the same way.

Let me know if you need more information about my setup.

The crash can be reproduced every time.

-- Backtrace (Reduced):
#4  0x00007fffb80316b1 in KMime::Content::headerByType(char const*) const ()
from /lib/x86_64-linux-gnu/libKF5Mime.so.5abi1
#5  0x00007fffb8032a2a in KMime::Content::contentTransferEncoding(bool) () from
/lib/x86_64-linux-gnu/libKF5Mime.so.5abi1
[...]
#7  0x00007fffb8033636 in KMime::Content::decodedText(bool, bool) () from
/lib/x86_64-linux-gnu/libKF5Mime.so.5abi1
#8  0x00007fff79132bf5 in
MimeTreeParser::ObjectTreeParser::extractNodeInfos(KMime::Content*, bool) ()
from /lib/x86_64-linux-gnu/libKF5MimeTreeParser.so.5abi1
#9  0x00007fff791334b9 in
MimeTreeParser::ObjectTreeParser::parseObjectTree(KMime::Content*, bool) ()
from /lib/x86_64-linux-gnu/libKF5MimeTreeParser.so.5abi1


The reporter indicates this bug may be a duplicate of or related to bug 474477.

Reported using DrKonqi

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