[Libreoffice-bugs] [Bug 143188] New: WRITER Crash after pasting multiple times

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=143188

            Bug ID: 143188
           Summary: WRITER Crash after pasting multiple times
           Product: LibreOffice
           Version: 7.0.6.2 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: come.allart at netc.fr

Description:
Paste multiple times the same thing, it starts consuming 100% CPU. Continue
pasting, it freezes.

Steps to Reproduce:
1. Open libreoffice and choose "Writer" to open a new document
2. Write "aunrsetaunrsietnrsaut" or something like this
3. In this word, copy with ^C "nrset" or something like this
4. Go to the end of the line
5. Paste with ^V several times

Actual Results:
After ~5 ^V's it freezes for one second and starts a thread using 100% of one
of the CPU logical threads.

After ~3 more ^V's it freezes for a long time (> 15 s), and there is still one
thread running 100%, even after it stops freezing.

Maybe not linked: `pkill soffice.bin` then on next start of LO, the document is
restored but with no contents in it.

Expected Results:
The text should be pasted once for each ^V. It may drop some pastes if the
frequency of ^V's is too high (but I am not a robot so I think I do not paste
excessively fast)


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.0.6.2
Build ID: 00(Build:2)
CPU threads: 4; OS: Linux 5.6; UI render: default; VCL: gtk3
Locale: fr-FR (fr_FR.UTF-8); Langue IHM : fr-FR
7.0.6-2
Calc: threaded

(Note: pasting this text multiple times in the document also makes Writer
freeze)

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