From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794176878; b=5sg4oBYPMNMrLvb990Vm/Umeen/ZiWOy+08hzH7zKvyvhEKEp9SBgNvz6jGlmYu9r4/o fyFgWKwU7f+mm83xqIHNmTk3To+rI4XGsMVlMu3dITeEzQINcVzTu+fXKA4vvmy937HA0 jpm65MuNmS9djm/TSOeXXuQXuS93fqUrmANm+i0XJYBYoodmSN8Fw3zUphGpp2+FaJeEx 88Dn/pPioNKRG7Yw18KdYbgXwOFIj97VlUtO/HjcGZ/6PGfppFnUVnphIg0KtPi1uPZ6w /oBGJcoapBwKythvfMu5dU9MSM6vIg9itqE3HSm6mZSUL6u3OvrjMiiH9IHAW2XrWgA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794176878; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=4IKEyNNVMbtlH/YtAA2tKyWfWnOYgIJubMPziZyywq8=; b=Ts4fw4imjA0TwARk1zLjWZ8olsZTAGOoRuYtZ4EGqHrK3g4HXbJ+0heMgfwF5hlDBgU7 3mU5YpX4Vly73Nde4gIvlpobyg1FR/sEU9ZpHUHSKsba8u/QEM8mOQ9orUYEEckPh2CAw eRQHNy1rXaIvtnxprIX7iVw/71RaJFaMvZmPVyrmnMuRePr0szA35JdScEKz8twynqgqo VSpqj6VKohCQBdyQGX9wWAt8/lTdL73VKoMGbhXxnWBL3Cs7v9LuwDAbtHV3Uzh7Rq8SB Sde+2r5CbVvjifho8Iu9CAJgG2iCy9S3M+Eghv2TAVVAwfKlqgU2XI64lC4p7+ijSgg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Wdz8J4g0; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with UTF8SMTPS id 73F58606EE85; Sun, 8 Nov 2026 22:27:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Wdz8J4g0 Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id 6053F1F008A7; Sun, 8 Nov 2026 22:27:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794176878; bh=4IKEyNNVMbtlH/YtAA2tKyWfWnOYgIJubMPziZyywq8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Wdz8J4g0bCy5/NMiYmiXLZEcK/qa4mel5KA7dJrd8tffkLSNG4nTfsy+tUud6n96D Oep2KRKcpj2qhHBRybpakcdAxPYttSAgI+RlPRdXhaFNAzYbsUlBJ7aHjXRHxrQaPq up6TwtBpMMZez0cEPxlEdFLrSHXR1zcdaGa6edNOAhDbzIowLYX8zrsMalfCLnOdh0 AV1Nz92M8PG5intxsbRTRhr/stS166lY/nk2sIISEV+xFww6Loh8GjmCTAlk9oTokV cv/29jRI3sBgpLmBie9AIk84wQ73VlQhxemKPq8HSOYy7Bcw/gMp5VcwDundLNG0/o UWGH3KuLDX/vg== From: Jarkko Sakkinen To: David Howells Cc: Jarkko Sakkinen , keyrings@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-s390@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org, Alexander Gordeev , Anna Schumaker , Bharath SM , Christian Borntraeger , "David S. Miller" , Eric Biggers , Eric Dumazet , Heiko Carstens , Jakub Kicinski , James Bottomley , James Morris , Marc Dionne , Mimi Zohar , Namjae Jeon , Paolo Abeni , Paul Moore , Paulo Alcantara , Ronnie Sahlberg , "Serge E. Hallyn" , Shyam Prasad N , Simon Horman , Sumit Garg , Sven Schnelle , Tom Talpey , Trond Myklebust , Vasily Gorbik Subject: [PATCH v5 08/12] rxrpc: Release conn->key when init_connection_security() fails Date: Mon, 9 Nov 2026 00:27:14 +0200 Message-ID: <20261108222719.304712-9-jarkko@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261108222719.304712-1-jarkko@kernel.org> References: <20261108222719.304712-1-jarkko@kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Clear conn->key before calling key_put() when init_connection_security() fails, and pair with READ_ONCE() in rxrpc_connection_seq_show(). Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Signed-off-by: Jarkko Sakkinen --- net/rxrpc/conn_event.c | 7 ++++++- net/rxrpc/proc.c | 2 +- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c index 611c790bc6d0..096807f13354 100644 --- a/net/rxrpc/conn_event.c +++ b/net/rxrpc/conn_event.c @@ -298,8 +298,13 @@ static int rxrpc_process_event(struct rxrpc_connection *conn, ret = conn->security->init_connection_security( conn, conn->key->payload.data[0]); - if (ret < 0) + if (ret < 0) { + struct key *key = conn->key; + + WRITE_ONCE(conn->key, NULL); + key_put(key); return ret; + } spin_lock_irq(&conn->state_lock); if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) { diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c index e9a27fa7b25d..2bf34b85c2f9 100644 --- a/net/rxrpc/proc.c +++ b/net/rxrpc/proc.c @@ -182,7 +182,7 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) refcount_read(&conn->ref), atomic_read(&conn->active), state, - key_serial(conn->key), + key_serial(READ_ONCE(conn->key)), conn->tx_serial, conn->hi_serial, conn->channels[0].call_id, -- 2.47.3