https://bugs.kde.org/show_bug.cgi?id=452504
Bug ID: 452504
Summary: KActionCollection static_cast<QAction*> relies on UB
Product: krita
Version: git master (please specify the git hash!)
Platform: unspecified
OS: Unspecified
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: krita-bugs-n...@kde.org
Reporter: al...@alvinhc.com
Target Milestone: ---
A previous attempt at removing the UB [1] failed (caused bug 452063,
subsequently reverted in [2]).
The problematic code is called from the QObject::deleteLater signal of a
QAction, which at that point is already no longer a QAction since its
destructor had returned. static_cast-ing the QObject* to QAction* is undefined
behavior.
[1]:
https://invent.kde.org/graphics/krita/-/commit/e3d359608b9d6038b2428e8a49b833e7a5188ba4#1c36f0db18ca0e87f7da1033e19d6af8d00102ab_616_615
[2]:
https://invent.kde.org/graphics/krita/-/commit/bcff23b8f01e483fdde3807cb19eef6ad7ea4eca
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