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Index: sys/netinet6/ip6_output.c
===================================================================
--- sys/netinet6/ip6_output.c
+++ sys/netinet6/ip6_output.c
@@ -2496,6 +2496,7 @@
struct ip6_pktopts *opt = *pktopt;
int error = 0;
struct thread *td = sopt->sopt_td;
+ struct epoch_tracker et;
/* turn off any old options. */
if (opt) {
@@ -2523,12 +2524,15 @@
}
/* set options specified by user. */
+ NET_EPOCH_ENTER(et);
if ((error = ip6_setpktopts(m, opt, NULL, (td != NULL) ?
td->td_ucred : NULL, so->so_proto->pr_protocol)) != 0) {
ip6_clearpktopts(opt, -1); /* XXX: discard all options */
free(opt, M_IP6OPT);
+ NET_EPOCH_EXIT(et);
return (error);
}
+ NET_EPOCH_EXIT(et);
*pktopt = opt;
return (0);
}
@@ -2824,6 +2828,12 @@
if (control == NULL || opt == NULL)
return (EINVAL);
+ /*
+ * ip6_setpktopt can call ifnet_by_index(), so it's imperative that we are
+ * in the net epoch here.
+ */
+ NET_EPOCH_ASSERT();
+
ip6_initpktopts(opt);
if (stickyopt) {
int error;
Index: sys/netinet6/raw_ip6.c
===================================================================
--- sys/netinet6/raw_ip6.c
+++ sys/netinet6/raw_ip6.c
@@ -417,9 +417,13 @@
INP_WLOCK(inp);
if (control != NULL) {
- if ((error = ip6_setpktopts(control, &opt,
+ NET_EPOCH_ENTER(et);
+ error = ip6_setpktopts(control, &opt,
inp->in6p_outputopts, so->so_cred,
- so->so_proto->pr_protocol)) != 0) {
+ so->so_proto->pr_protocol);
+ NET_EPOCH_EXIT(et);
+
+ if (error != 0) {
goto bad;
}
optp = &opt;
Index: sys/netinet6/udp6_usrreq.c
===================================================================
--- sys/netinet6/udp6_usrreq.c
+++ sys/netinet6/udp6_usrreq.c
@@ -810,21 +810,16 @@
return (EINVAL);
}
+ NET_EPOCH_ENTER(et);
if (control) {
if ((error = ip6_setpktopts(control, &opt,
inp->in6p_outputopts, td->td_ucred, nxt)) != 0) {
- INP_UNLOCK(inp);
- ip6_clearpktopts(&opt, -1);
- if (control)
- m_freem(control);
- m_freem(m);
- return (error);
+ goto release;
}
optp = &opt;
} else
optp = inp->in6p_outputopts;
- NET_EPOCH_ENTER(et);
if (sin6) {
/*
* Since we saw no essential reason for calling in_pcbconnect,

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