From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01640C77B61 for ; Mon, 24 Apr 2023 13:21:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232032AbjDXNV4 (ORCPT ); Mon, 24 Apr 2023 09:21:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232025AbjDXNVq (ORCPT ); Mon, 24 Apr 2023 09:21:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A4D049FE for ; Mon, 24 Apr 2023 06:21:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 206FE6221E for ; Mon, 24 Apr 2023 13:21:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F403C433EF; Mon, 24 Apr 2023 13:21:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1682342494; bh=11EhVpa6UQ5d0MgbwWdBeP7qtvzkptP71hR3H4uIUm0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r0juMtRJYhCRhJ0Se3zNqEMI6/0MCvUgoQC1RUM3JzR6kIqa89sHn/R2RM9qG4eNY QnwoGD0qDFNcW/FOLUeMsJEtGuY47KPtsa+3taJ9AOGwUgo/nwAP/7FYp8EFluSabe kTZ6DvH2Jwomya+DM4+utKUtP3MPugwL/H4jsuyA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kuniyuki Iwashima , "David S. Miller" , Ziyang Xuan Subject: [PATCH 5.15 61/73] dccp: Call inet6_destroy_sock() via sk->sk_destruct(). Date: Mon, 24 Apr 2023 15:17:15 +0200 Message-Id: <20230424131131.306912145@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230424131129.040707961@linuxfoundation.org> References: <20230424131129.040707961@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kuniyuki Iwashima commit 1651951ebea54970e0bda60c638fc2eee7a6218f upstream. After commit d38afeec26ed ("tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct()."), we call inet6_destroy_sock() in sk->sk_destruct() by setting inet6_sock_destruct() to it to make sure we do not leak inet6-specific resources. DCCP sets its own sk->sk_destruct() in the dccp_init_sock(), and DCCPv6 socket shares it by calling the same init function via dccp_v6_init_sock(). To call inet6_sock_destruct() from DCCPv6 sk->sk_destruct(), we export it and set dccp_v6_sk_destruct() in the init function. Signed-off-by: Kuniyuki Iwashima Signed-off-by: David S. Miller Signed-off-by: Ziyang Xuan Signed-off-by: Greg Kroah-Hartman --- net/dccp/dccp.h | 1 + net/dccp/ipv6.c | 15 ++++++++------- net/dccp/proto.c | 8 +++++++- net/ipv6/af_inet6.c | 1 + 4 files changed, 17 insertions(+), 8 deletions(-) --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -283,6 +283,7 @@ int dccp_rcv_state_process(struct sock * int dccp_rcv_established(struct sock *sk, struct sk_buff *skb, const struct dccp_hdr *dh, const unsigned int len); +void dccp_destruct_common(struct sock *sk); int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized); void dccp_destroy_sock(struct sock *sk); --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1002,6 +1002,12 @@ static const struct inet_connection_sock .sockaddr_len = sizeof(struct sockaddr_in6), }; +static void dccp_v6_sk_destruct(struct sock *sk) +{ + dccp_destruct_common(sk); + inet6_sock_destruct(sk); +} + /* NOTE: A lot of things set to zero explicitly by call to * sk_alloc() so need not be done here. */ @@ -1014,17 +1020,12 @@ static int dccp_v6_init_sock(struct sock if (unlikely(!dccp_v6_ctl_sock_initialized)) dccp_v6_ctl_sock_initialized = 1; inet_csk(sk)->icsk_af_ops = &dccp_ipv6_af_ops; + sk->sk_destruct = dccp_v6_sk_destruct; } return err; } -static void dccp_v6_destroy_sock(struct sock *sk) -{ - dccp_destroy_sock(sk); - inet6_destroy_sock(sk); -} - static struct timewait_sock_ops dccp6_timewait_sock_ops = { .twsk_obj_size = sizeof(struct dccp6_timewait_sock), }; @@ -1047,7 +1048,7 @@ static struct proto dccp_v6_prot = { .accept = inet_csk_accept, .get_port = inet_csk_get_port, .shutdown = dccp_shutdown, - .destroy = dccp_v6_destroy_sock, + .destroy = dccp_destroy_sock, .orphan_count = &dccp_orphan_count, .max_header = MAX_DCCP_HEADER, .obj_size = sizeof(struct dccp6_sock), --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -171,12 +171,18 @@ const char *dccp_packet_name(const int t EXPORT_SYMBOL_GPL(dccp_packet_name); -static void dccp_sk_destruct(struct sock *sk) +void dccp_destruct_common(struct sock *sk) { struct dccp_sock *dp = dccp_sk(sk); ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk); dp->dccps_hc_tx_ccid = NULL; +} +EXPORT_SYMBOL_GPL(dccp_destruct_common); + +static void dccp_sk_destruct(struct sock *sk) +{ + dccp_destruct_common(sk); inet_sock_destruct(sk); } --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -113,6 +113,7 @@ void inet6_sock_destruct(struct sock *sk inet6_cleanup_sock(sk); inet_sock_destruct(sk); } +EXPORT_SYMBOL_GPL(inet6_sock_destruct); static int inet6_create(struct net *net, struct socket *sock, int protocol, int kern)