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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Vinay Kumar Yadav <vinay.yadav@chelsio.com>,
        Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH 5.9 031/757] chelsio/chtls: fix socket lock
Date:   Tue, 27 Oct 2020 14:44:41 +0100
Message-Id: <20201027135451.982295986@linuxfoundation.org>
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From: Vinay Kumar Yadav <vinay.yadav@chelsio.com>

[ Upstream commit 0fb5f0160a36d7acaa8e84ce873af99f94b60484 ]

In chtls_sendpage() socket lock is released but not acquired,
fix it by taking lock.

Fixes: 36bedb3f2e5b ("crypto: chtls - Inline TLS record Tx")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/chelsio/chtls/chtls_io.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/crypto/chelsio/chtls/chtls_io.c
+++ b/drivers/crypto/chelsio/chtls/chtls_io.c
@@ -1240,6 +1240,7 @@ int chtls_sendpage(struct sock *sk, stru
 	copied = 0;
 	csk = rcu_dereference_sk_user_data(sk);
 	cdev = csk->cdev;
+	lock_sock(sk);
 	timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
 
 	err = sk_stream_wait_connect(sk, &timeo);