Commit: aa7c207ac15a ("netfilter: ip_tables: guard ipt_unregister_table_pre_exit against NULL ops")
	Fixes tag: Fixes: ae689334225f ("netfilter: xtables: Bring back xt_register_table()")
	Has these problem(s):
		- Subject does not match target commit subject
		  Just use
			git log -1 --format='Fixes: %h ("%s")'