summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--net/ipv4/af_inet.c2
-rw-r--r--net/ipv4/icmp.c2
-rw-r--r--net/ipv6/af_inet6.c2
-rw-r--r--net/xfrm/xfrm_state.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index ac67f6b4ec70..4bc24f9e38b3 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -335,7 +335,7 @@ lookup_protocol:
inet->hdrincl = 1;
}
- if (net->ipv4.sysctl_ip_no_pmtu_disc)
+ if (READ_ONCE(net->ipv4.sysctl_ip_no_pmtu_disc))
inet->pmtudisc = IP_PMTUDISC_DONT;
else
inet->pmtudisc = IP_PMTUDISC_WANT;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 57c4f0d87a7a..d5d745c3e345 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -881,7 +881,7 @@ static enum skb_drop_reason icmp_unreach(struct sk_buff *skb)
* values please see
* Documentation/networking/ip-sysctl.rst
*/
- switch (net->ipv4.sysctl_ip_no_pmtu_disc) {
+ switch (READ_ONCE(net->ipv4.sysctl_ip_no_pmtu_disc)) {
default:
net_dbg_ratelimited("%pI4: fragmentation needed and DF set\n",
&iph->daddr);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 70564ddccc46..6f354f8be2c5 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -226,7 +226,7 @@ lookup_protocol:
RCU_INIT_POINTER(inet->mc_list, NULL);
inet->rcv_tos = 0;
- if (net->ipv4.sysctl_ip_no_pmtu_disc)
+ if (READ_ONCE(net->ipv4.sysctl_ip_no_pmtu_disc))
inet->pmtudisc = IP_PMTUDISC_DONT;
else
inet->pmtudisc = IP_PMTUDISC_WANT;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 08564e0eef20..ccfb172eb5b8 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2620,7 +2620,7 @@ int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload)
int err;
if (family == AF_INET &&
- xs_net(x)->ipv4.sysctl_ip_no_pmtu_disc)
+ READ_ONCE(xs_net(x)->ipv4.sysctl_ip_no_pmtu_disc))
x->props.flags |= XFRM_STATE_NOPMTUDISC;
err = -EPROTONOSUPPORT;