i2pd: segfault when sending SAM raw datagrams

When sending a raw datagram using SAM, i.e. by calling this function, I get a segmentation fault.

Backtrace:

Thread 14 "i2pd" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffdeffd700 (LWP 8880)]
0x0000000000f30308 in i2p::datagram::DatagramDestination::SendDatagramTo(unsigned char const*, unsigned long, i2p::data::Tag<32ul> const&, unsigned short, unsigned short) ()
(gdb) bt
#0  0x0000000000f30308 in i2p::datagram::DatagramDestination::SendDatagramTo(unsigned char const*, unsigned long, i2p::data::Tag<32ul> const&, unsigned short, unsigned short) ()
#1  0x000000000106cac5 in i2p::client::SAMBridge::HandleReceivedDatagram(boost::system::error_code const&, unsigned long) ()
#2  0x00000000010859e2 in void std::_Mem_fn_base<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long), true>::operator()<boost::system::error_code const&, unsigned long const&, void>(i2p::client::SAMBridge*, boost::system::error_code const&, unsigned long const&) const ()
#3  0x0000000001085631 in void std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>::__call<void, boost::system::error_code const&, unsigned long const&, 0ul, 1ul, 2ul>(std::tuple<boost::system::error_code const&, unsigned long const&>&&, std::_Index_tuple<0ul, 1ul, 2ul>) ()
#4  0x00000000010850e3 in void std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>::operator()<boost::system::error_code const&, unsigned long const&, void>(boost::system::error_code const&, unsigned long const&) ()
#5  0x0000000001084b67 in boost::asio::detail::binder2<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>, boost::system::error_code, unsigned long>::operator()() ()
#6  0x0000000001083f09 in void boost::asio::asio_handler_invoke<boost::asio::detail::binder2<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>, boost::system::error_code, unsigned long> >(boost::asio::detail::binder2<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>, boost::system::error_code, unsigned long>&, ...) ()
#7  0x0000000001082c41 in void boost_asio_handler_invoke_helpers::invoke<boost::asio::detail::binder2<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>, boost::system::error_code, unsigned long>, std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)> >(boost::asio::detail::binder2<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>, boost::system::error_code, unsigned long>&, std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)>&) ()
#8  0x0000000001080f7b in boost::asio::detail::reactive_socket_recvfrom_op<boost::asio::mutable_buffers_1, boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)(boost::system::error_code const&, unsigned long)> (i2p::client::SAMBridge*, std::_Placeholder<1>, std::_Placeholder<2>)> >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) ()
#9  0x0000000000d80c46 in boost::asio::detail::task_io_service_operation::complete(boost::asio::detail::task_io_service&, boost::system::error_code const&, unsigned long) ()
#10 0x0000000000d82a27 in boost::asio::detail::epoll_reactor::descriptor_state::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) ()
#11 0x0000000000d80c46 in boost::asio::detail::task_io_service_operation::complete(boost::asio::detail::task_io_service&, boost::system::error_code const&, unsigned long) ()
#12 0x0000000000d835f1 in boost::asio::detail::task_io_service::do_run_one(boost::asio::detail::scoped_lock<boost::asio::detail::posix_mutex>&, boost::asio::detail::task_io_service_thread_info&, boost::system::error_code const&) ()
#13 0x0000000000d83075 in boost::asio::detail::task_io_service::run(boost::system::error_code&) ()
#14 0x0000000000d83900 in boost::asio::io_service::run() ()
#15 0x000000000106b7e8 in i2p::client::SAMBridge::Run() ()
#16 0x0000000001086503 in void std::_Mem_fn_base<void (i2p::client::SAMBridge::*)(), true>::operator()<, void>(i2p::client::SAMBridge*) const ()
#17 0x0000000001086465 in void std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)()> (i2p::client::SAMBridge*)>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) ()
#18 0x00000000010863bb in void std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)()> (i2p::client::SAMBridge*)>::operator()<, void>() ()
#19 0x0000000001086380 in void std::_Bind_simple<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)()> (i2p::client::SAMBridge*)> ()>::_M_invoke<>(std::_Index_tuple<>) ()
#20 0x000000000108625c in std::_Bind_simple<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)()> (i2p::client::SAMBridge*)> ()>::operator()() ()
#21 0x000000000108612c in std::thread::_Impl<std::_Bind_simple<std::_Bind<std::_Mem_fn<void (i2p::client::SAMBridge::*)()> (i2p::client::SAMBridge*)> ()> >::_M_run() ()
#22 0x00007ffff699ac80 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#23 0x00007ffff64b66ba in start_thread (arg=0x7fffdeffd700) at pthread_create.c:333
#24 0x00007ffff61ec41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

This should be straightforward to reproduce; if I can provide more info, please let me know.