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authorEric Dumazet <edumazet@google.com>2023-07-28 15:03:15 +0000
committerDavid S. Miller <davem@davemloft.net>2023-07-29 18:13:41 +0100
commit3c5b4d69c358a9275a8de98f87caf6eda644b086 (patch)
treefa45713da2bb8c9dc9c4728dcdb990ebd86c98d5 /net/dccp
parentnet: add missing READ_ONCE(sk->sk_rcvbuf) annotation (diff)
downloadwireguard-linux-3c5b4d69c358a9275a8de98f87caf6eda644b086.tar.xz
wireguard-linux-3c5b4d69c358a9275a8de98f87caf6eda644b086.zip
net: annotate data-races around sk->sk_mark
sk->sk_mark is often read while another thread could change the value. Fixes: 4a19ec5800fc ("[NET]: Introducing socket mark socket option.") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ipv6.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 7249ef218178..d29d1163203d 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -238,8 +238,8 @@ static int dccp_v6_send_response(const struct sock *sk, struct request_sock *req
opt = ireq->ipv6_opt;
if (!opt)
opt = rcu_dereference(np->opt);
- err = ip6_xmit(sk, skb, &fl6, sk->sk_mark, opt, np->tclass,
- sk->sk_priority);
+ err = ip6_xmit(sk, skb, &fl6, READ_ONCE(sk->sk_mark), opt,
+ np->tclass, sk->sk_priority);
rcu_read_unlock();
err = net_xmit_eval(err);
}