https://bugs.kde.org/show_bug.cgi?id=487808
Bug ID: 487808
Summary: plasmashell tries to parse ELF file as a config file
during startup; desktop unresponsive
Classification: Plasma
Product: plasmashell
Version: 6.0.4
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Startup process
Assignee: plasma-b...@kde.org
Reporter: phil.h...@gmail.com
CC: k...@davidedmundson.co.uk
Target Milestone: 1.0
SUMMARY
On startup plasmashell tries to parse an ELF executable as a config file,
resulting in 3 minutes of CPU burn, and unresponsive desktop, and 4 million
errors logged in journalctl.
STEPS TO REPRODUCE
1. Download the VSCode tarball from
https://update.code.visualstudio.com/1.85.2/linux-x64/stable
2. Untar it into a local folder under home.
2. Login to plasmashell
Note: When I tried to repro this by copying the file somewhere like in the
steps above, it did not occur again. I'll try to repro again when I get more
time to experiment.
OBSERVED RESULT
Desktop displays but doesn't respond to mouse or keyboard for 3 minutes.
Syslog is spammed with parse errors like this:
plasmashell[17552]: kf.config.core: "KConfigIni: In file
/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code,
line 40238: " Invalid entry (missing '=')
SOFTWARE/OS VERSIONS
Operating System: KDE neon 6.0
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Kernel Version: 6.5.0-35-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-10610U CPU @ 1.80GHz
Memory: 15.2 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics
Manufacturer: LENOVO
Product Name: 20UCS4TR00
System Version: ThinkPad X1 Yoga Gen 5
ADDITIONAL INFORMATION
Possibly related to Bug 465517. In this case the file is not named "*.desktop",
but it is an appimage which did contain a file named ".desktop", it seems. It
is Electron instance (VSCode).
$ file
"/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code"
/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code:
ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked,
interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0,
BuildID[sha1]=8568a1e8a49c9f715f0c0ec32106257b915b9851, not stripped
$ gio info
"/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code"
| grep content
standard::content-type: application/x-executable
standard::fast-content-type: application/octet-stream
$ mimetype
"/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code"
/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code:
application/x-executable
$ kmimetypefinder5
"/home/phord/ude_installations/.VSCode-linux-x64.2024-05-03T16:13:56.8ff70376.ude/code"
application/x-executable
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