crash when restarting server with active statschannel connection

Summary

BIND version used

• Affects v9.19 : 9128e540
• Affects v9.18 : v9_18_9 is also affected

Steps to reproduce

1. Start named
2. $ telnet ::1 8080
3. SIGINT the server
4. Enjoy fireworks

What is the current bug behavior?

Crash on assertion:

httpd.c:902: REQUIRE(httpd->readhandle == handle) failed, back trace

What is the expected correct behavior?

Does not crash.

Relevant configuration files

statistics-channels {
	inet ::1 port 8080;
};