[kde] [Bug 496616] New: Memory leak in FstabHandling for krunner, kded6, plasmashell, kde-powerdevil and ksystemstats

[jdl]

https://bugs.kde.org/show_bug.cgi?id=496616

            Bug ID: 496616
           Summary: Memory leak in FstabHandling for krunner, kded6,
                    plasmashell, kde-powerdevil and ksystemstats
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: 677ee1vp at duck.com
  Target Milestone: ---

Created attachment 176067
  --> https://bugs.kde.org/attachment.cgi?id=176067&action=edit
archive of heaptrack memory logs for components. Each file can be extracted and
analyzed with heaptrack-gui

SUMMARY
Memory usage of mentioned processes increase linearly, at identical rates,
reaching a roof of 4GiB after 4-5 hours. On my system, this leads to OOM, and
me having to manually kill e.g. krunner.

STEPS TO REPRODUCE
1. Boot the system
2. Observe the gradually increased memory usage
3. Analyze the processes with `heaptrack`

OBSERVED RESULT
Some KDE components leak memory. A common trait among the processes analyzed,
shows that the function `__GI__strdup` in `libc.so.6` of `fstabHandling` of
`libKFSolid.6.so` ; is responsible for 99% of the memory usage.

EXPECTED RESULT
Stable memory usage of KDE components when not being used.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 41 (KDE Atomic, base commit
79a1f077b6fba8adec804e1797b0d1c9114453a6331ed1b8b89c69c6102f1db8 )
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0


ADDITIONAL INFORMATION
Kernel Version: 6.11.8-300.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-8750H CPU @ 2.20GHz
Memory: 31.1 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1070 with Max-Q Design/PCIe/SSE2

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