D14622.id40075.diff
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	Index: sys/netinet6/ip6_output.c
	===================================================================
	--- sys/netinet6/ip6_output.c
	+++ sys/netinet6/ip6_output.c
	@@ -2067,6 +2067,7 @@
	{
	u_long pmtu = 0;
	struct ip6_mtuinfo mtuinfo;
	+ struct in6_addr addr;

	if (!(so->so_state & SS_ISCONNECTED))
	return (ENOTCONN);
	@@ -2074,9 +2075,14 @@
	* XXX: we dot not consider the case of source
	* routing, or optional information to specify
	* the outgoing interface.
	+ * Copy faddr out of in6p to avoid holding lock
	+ * on inp during route lookup.
	*/
	+ INP_RLOCK(in6p);
	+ bcopy(&in6p->in6p_faddr, &addr, sizeof(addr));
	+ INP_RUNLOCK(in6p);
	error = ip6_getpmtu_ctl(so->so_fibnum,
	- &in6p->in6p_faddr, &pmtu);
	+ &addr, &pmtu);
	if (error)
	break;
	if (pmtu > IPV6_MAXPACKET)