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 X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D08CBC433F5 for ; Thu, 16 Sep 2021 16:40:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BA41161A0D for ; Thu, 16 Sep 2021 16:40:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242653AbhIPQmJ (ORCPT ); Thu, 16 Sep 2021 12:42:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:44968 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237633AbhIPQfp (ORCPT ); Thu, 16 Sep 2021 12:35:45 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A42C5619EC; Thu, 16 Sep 2021 16:21:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631809293; bh=O+LQ4DDfiI2Si5+OUE/qGGfq3U5Ne/55Ci9eA1GnmQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oeAHUlFFLlHuaFdWWhRoIpg1tV6VmVWlRcqvusSS1XtjLui2U852i/jq2m6QcMCI4 Tem5OCxqA1VAXPMFOYBR2YGc9hmdJkAz8CuPGNtRwNG+Z1gdVBzc0gqcezEDTJebsa 0UTcCXfM9tkxgIjRcVCbEH7PCfG4zu70Nkcmf2ro= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Anna Schumaker , Sasha Levin Subject: [PATCH 5.13 100/380] sunrpc: Fix return value of get_srcport() Date: Thu, 16 Sep 2021 17:57:37 +0200 Message-Id: <20210916155807.434276921@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210916155803.966362085@linuxfoundation.org> References: <20210916155803.966362085@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Anna Schumaker [ Upstream commit 5d46dd04cb68771f77ba66dbf6fd323a4a2ce00d ] Since bc1c56e9bbe9 transport->srcport may by unset, causing get_srcport() to return 0 when called. Fix this by querying the port from the underlying socket instead of the transport. Fixes: bc1c56e9bbe9 (SUNRPC: prevent port reuse on transports which don't request it) Signed-off-by: Anna Schumaker Signed-off-by: Sasha Levin --- net/sunrpc/xprtsock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 3bbf47046e8a..b836b4c322fc 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1651,7 +1651,7 @@ static int xs_get_srcport(struct sock_xprt *transport) unsigned short get_srcport(struct rpc_xprt *xprt) { struct sock_xprt *sock = container_of(xprt, struct sock_xprt, xprt); - return sock->srcport; + return xs_sock_getport(sock->sock); } EXPORT_SYMBOL(get_srcport); -- 2.30.2