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authorWolfram Sang <wsa@the-dreams.de>2018-10-11 23:07:30 +0200
committerWolfram Sang <wsa@the-dreams.de>2018-10-11 23:07:30 +0200
commit90fb814b6c025da45f71db1703cffe3fe87f575c (patch)
tree5fd739d407654df6f9d6e82900a45e027dd8b9f0 /net/ipv4/inet_connection_sock.c
parentb30f2f65568f840e5ca522d98ba2ad73b8f59cde (diff)
parent0238df646e6224016a45505d2c111a24669ebe21 (diff)
Merge tag 'v4.19-rc7' into i2c/for-4.20
This is the 4.19-rc7 release
Diffstat (limited to 'net/ipv4/inet_connection_sock.c')
-rw-r--r--net/ipv4/inet_connection_sock.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index dfd5009f96ef..15e7f7915a21 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -544,7 +544,8 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
struct ip_options_rcu *opt;
struct rtable *rt;
- opt = ireq_opt_deref(ireq);
+ rcu_read_lock();
+ opt = rcu_dereference(ireq->ireq_opt);
flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
@@ -558,11 +559,13 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
goto no_route;
if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway)
goto route_err;
+ rcu_read_unlock();
return &rt->dst;
route_err:
ip_rt_put(rt);
no_route:
+ rcu_read_unlock();
__IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
return NULL;
}