diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 70ea352e3a3b..118cf1ace43a 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -785,11 +785,18 @@ out_free: static void sk_psock_strp_read(struct strparser *strp, struct sk_buff *skb) { - struct sk_psock *psock = sk_psock_from_strp(strp); + struct sk_psock *psock; struct bpf_prog *prog; int ret = __SK_DROP; + struct sock *sk; rcu_read_lock(); + sk = strp->sk; + psock = sk_psock(sk); + if (unlikely(!psock)) { + kfree_skb(skb); + goto out; + } prog = READ_ONCE(psock->progs.skb_verdict); if (likely(prog)) { skb_orphan(skb); @@ -798,6 +805,7 @@ static void sk_psock_strp_read(struct strparser *strp, struct sk_buff *skb) ret = sk_psock_map_verd(ret, tcp_skb_bpf_redirect_fetch(skb)); } sk_psock_verdict_apply(psock, skb, ret); +out: rcu_read_unlock(); }