Rin Cat writes via Kernel.org Bugzilla: I no longer had this issue when I moved to LTS 6.6 kernel from LTS 6.1, so I am not sure where it was fixed. And for Jeff, CFI (Control Flow Integrity) is LLVM/clang supported runtime type check. If a pointer or function argument is different or incompatible with the declared type, a kernel warning or panic will be triggered depending on the configuration. https://clang.llvm.org/docs/ControlFlowIntegrity.html A CFI failure most likely means some runtime bugs. View: https://bugzilla.kernel.org/show_bug.cgi?id=217973#c3 You can reply to this message to join the discussion. -- Deet-doot-dot, I am a bot. Kernel.org Bugzilla (bugspray 0.1-dev)