D9047.diff
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	Index: sys/netinet/tcp_hostcache.c
	===================================================================
	--- sys/netinet/tcp_hostcache.c
	+++ sys/netinet/tcp_hostcache.c
	@@ -69,10 +69,12 @@

	#include <sys/param.h>
	#include <sys/systm.h>
	+#include <sys/jail.h>
	#include <sys/kernel.h>
	#include <sys/lock.h>
	#include <sys/mutex.h>
	#include <sys/malloc.h>
	+#include <sys/proc.h>
	#include <sys/sbuf.h>
	#include <sys/socket.h>
	#include <sys/socketvar.h>
	@@ -625,6 +627,9 @@
	char ip6buf[INET6_ADDRSTRLEN];
	#endif

	+ if (jailed_without_vnet(curthread->td_ucred) != 0)
	+ return (EPERM);
	+
	sbuf_new(&sb, NULL, linesize * (V_tcp_hostcache.cache_count + 1),
	SBUF_INCLUDENUL);