segfault in `veliad-system`, `velia::system::Rtnetlink::getRoutes()`

[jktjkt]

There was no core file, and this is the only info that I have:

1980-01-01T00:00:11.905099+0000 bidi-cplus1572-ocm systemd-coredump[286]: Process 254 (veliad-system) of user 0 dumped core.
Stack trace of thread 284:
#0  0x00000000005558f4 _ZN5velia6system9Rtnetlink9getRoutesEv (veliad-system + 0x8b8f4)
#1  0x000000000052187c _ZN5velia6system14IETFInterfaces13onRouteUpdateEP10rtnl_routei (veliad-system + 0x5787c)
#2  0x0000000000554fd8 _ZNKSt8functionIFvP10rtnl_routeiEEclES1_i (veliad-system + 0x8afd8)
#3  0x00000000b6b855f8 n/a (libnl-3.so.200 + 0xa5f8)

This demangles to:

• velia::system::Rtnetlink::getRoutes()
• velia::system::IETFInterfaces::onRouteUpdate(rtnl_route*, int)
• std::function<void (rtnl_route*, int)>::operator()(rtnl_route*, int) const