linux-kernel - Re: [syzbot] Test for fd7b34375c1c8ce29c93

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Date: Wed, 14 Feb 2024 07:44:57 -0800
From: syzbot <syzbot+fd7b34375c1c8ce29c93@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Test for fd7b34375c1c8ce29c93

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Subject: Test for fd7b34375c1c8ce29c93
Author: syoshida@...hat.com

#syz test

diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 93ecfceac1bc..4d75ef9d24bf 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -1226,8 +1226,11 @@ static void sk_psock_verdict_data_ready(struct sock *sk)
 
 		rcu_read_lock();
 		psock = sk_psock(sk);
-		if (psock)
-			psock->saved_data_ready(sk);
+		if (psock) {
+			read_lock_bh(&sk->sk_callback_lock);
+			sk_psock_data_ready(sk, psock);
+			read_unlock_bh(&sk->sk_callback_lock);
+		}
 		rcu_read_unlock();
 	}
 }