Bug 515012 - KColorSchemeEdi crashes when clicking to edit a color
Summary: KColorSchemeEdi crashes when clicking to edit a color
Status: REPORTED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_colors (other bugs)
Version First Reported In: 6.5.90
Platform: Arch Linux Linux
: NOR crash
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-01-24 13:46 UTC by Daniel (NIICKTCHUNS)
Modified: 2026-01-24 14:33 UTC (History)
3 users (show)

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Version Fixed/Implemented In:
Sentry Crash Report:

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Description Daniel (NIICKTCHUNS) 2026-01-24 13:46:16 UTC 
SUMMARY
On the latest beta the KColorSchemeEditor is crashing when trying to edit a color from the color scheme

STEPS TO REPRODUCE
1. Update to 6.5.90
2. Go to colors in system settings
3. Try to edit a color scheme

OBSERVED RESULT
KColorScheme crashes with the core dump being

Starting program: /usr/bin/kcolorschemeeditor 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7ffff25ff6c0 (LWP 361972)]
[New Thread 0x7fffe98676c0 (LWP 361977)]
[New Thread 0x7fffe90666c0 (LWP 361978)]
[New Thread 0x7fffe0bff6c0 (LWP 361979)]
[New Thread 0x7fffd27ff6c0 (LWP 361980)]
[New Thread 0x7fffd1ffe6c0 (LWP 361981)]
[New Thread 0x7fffd17fd6c0 (LWP 361982)]
[New Thread 0x7fffd0dfc6c0 (LWP 361983)]
[New Thread 0x7fffd05fb6c0 (LWP 361984)]
[New Thread 0x7fffcfdfa6c0 (LWP 361985)]
[New Thread 0x7fffcf5f96c0 (LWP 361986)]
[New Thread 0x7fffcedf86c0 (LWP 361987)]
[New Thread 0x7fffce5f76c0 (LWP 361988)]
[New Thread 0x7fffcddf66c0 (LWP 361989)]
[New Thread 0x7fffcd5f56c0 (LWP 361990)]
[New Thread 0x7fffccdf46c0 (LWP 361991)]
[Thread 0x7fffccdf46c0 (LWP 361991) exited]
[Thread 0x7fffcd5f56c0 (LWP 361990) exited]
[Thread 0x7fffcddf66c0 (LWP 361989) exited]
[Thread 0x7fffce5f76c0 (LWP 361988) exited]
[Thread 0x7fffcedf86c0 (LWP 361987) exited]
[Thread 0x7fffcf5f96c0 (LWP 361986) exited]
Esquema não encontrado, retornando ao atual.
[New Thread 0x7fffcf5f96c0 (LWP 361993)]
[New Thread 0x7fffcedf86c0 (LWP 361994)]
[New Thread 0x7fffce5f76c0 (LWP 361995)]
[New Thread 0x7fffcddf66c0 (LWP 361996)]
/usr/include/c++/15.2.1/bits/stl_algo.h:3638: constexpr const _Tp& std::clamp(const _Tp&, const _Tp&, const _Tp&) [with _Tp = int]: Assertion '!(__hi < __lo)' failed.

Thread 1 "kcolorschemeedi" received signal SIGABRT, Aborted.
__pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
44            return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0;


EXPECTED RESULT
KColorSchemeEditor shouldn't crash

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.18.6-arch1-1 Wayland
KDE Plasma Version: 6.5.90
KDE Frameworks Version: 6.22.0
Qt Version: 6.11.0