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Diffstat (limited to 'net/rxrpc/peer_event.c')
-rw-r--r--net/rxrpc/peer_event.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index 61451281d74a..48f67a9b1037 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -147,13 +147,16 @@ void rxrpc_error_report(struct sock *sk)
{
struct sock_exterr_skb *serr;
struct sockaddr_rxrpc srx;
- struct rxrpc_local *local = sk->sk_user_data;
+ struct rxrpc_local *local;
struct rxrpc_peer *peer;
struct sk_buff *skb;
- if (unlikely(!local))
+ rcu_read_lock();
+ local = rcu_dereference_sk_user_data(sk);
+ if (unlikely(!local)) {
+ rcu_read_unlock();
return;
-
+ }
_enter("%p{%d}", sk, local->debug_id);
/* Clear the outstanding error value on the socket so that it doesn't
@@ -163,6 +166,7 @@ void rxrpc_error_report(struct sock *sk)
skb = sock_dequeue_err_skb(sk);
if (!skb) {
+ rcu_read_unlock();
_leave("UDP socket errqueue empty");
return;
}
@@ -170,11 +174,11 @@ void rxrpc_error_report(struct sock *sk)
serr = SKB_EXT_ERR(skb);
if (!skb->len && serr->ee.ee_origin == SO_EE_ORIGIN_TIMESTAMPING) {
_leave("UDP empty message");
+ rcu_read_unlock();
rxrpc_free_skb(skb, rxrpc_skb_freed);
return;
}
- rcu_read_lock();
peer = rxrpc_lookup_peer_icmp_rcu(local, skb, &srx);
if (peer && !rxrpc_get_peer_maybe(peer))
peer = NULL;