Hi, AddressSanitizer: alloc-dealloc-mismatch (malloc vs operator delete) on 0x613000000040 https://bugzilla.redhat.com/show_bug.cgi?id=1510413 The gdb binary had so far on Fedora 34 x86_64: U operator delete[](void*) U operator delete[](void*, unsigned long) U operator delete(void*, unsigned long) While now there are defined all these - but IMO it is a bit unpredictable which will be used in the future: 00000000000000c0 T operator delete[](void*) 00000000000000d0 T operator delete[](void*, std::nothrow_t const&) 00000000000000e0 T operator delete[](void*, unsigned long) 0000000000000090 T operator delete(void*) 00000000000000a0 T operator delete(void*, std::nothrow_t const&) 00000000000000b0 T operator delete(void*, unsigned long) Jan