From patchwork Thu Nov 26 15:12:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Willem de Bruijn X-Patchwork-Id: 333483 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 A0332C56202 for ; Thu, 26 Nov 2020 15:12:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38EBC20B80 for ; Thu, 26 Nov 2020 15:12:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ti8u/E8u" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390299AbgKZPM0 (ORCPT ); Thu, 26 Nov 2020 10:12:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389316AbgKZPM0 (ORCPT ); Thu, 26 Nov 2020 10:12:26 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0E8BC0613D4 for ; Thu, 26 Nov 2020 07:12:25 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id v143so1808219qkb.2 for ; Thu, 26 Nov 2020 07:12:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=s0mSLXkveRT/Z0N1TE7U+YTX79J1JxSJIuUnFkkISm4=; b=ti8u/E8ub4+XRhB9jlOCi/l3Y+uJAIRvomaFQ56Sw8Gn+1JnQNFXKuWO0Aos66Fekt DJzTpVJyajLtRup/e3vkBgHZb3HQZ/9ry56uE+bi37ZawpF+AVV2wT+9N2zaNnHmUajk XS1sSk0O8ac/S6IYAlcdc8GigXfbAwXkhkttkPGOvottQnuw/DuoW/RC8ousyAO8biv0 a48O/KMuMB44AZDXkdhQcpq4e0IdmB/xl2GyBmd4miRemunkYuCd7tElF8wmcVSKJiqD 7vpPjnWC2/Oabbq1pOJNPIZMJHFW23crTlybqR3EFN40Cr1DmziMSOJ05WZ9tnGK1Qs5 0QnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=s0mSLXkveRT/Z0N1TE7U+YTX79J1JxSJIuUnFkkISm4=; b=UJl7M8bAnIiaQRvBzMH+g6N5SZFtfQKTk4vXbDzWaHqhFWG8NUE4dQo09PSQtcEZIL ykYdPKWliQl/blKfbyzlX5P1uh2NDFSMUYZEAnCthxnDJb4H/NY0DkGcybq9Mo51toJS iDwLI8x4xDmdo8CoPUb2Zq6IW0uFP2KLsTtB4wYuF02TP9Th85S+u+Bdxr4Lebn6ZlvU DXqg+/TnnaeuDclsdrLEZwITkdLakytnFAO7lAz7B0pCmOLa3iGy5ztf4KdSlZ7dcGOf ecZtpUFSxn+haPmUaxXJmRbpAb0Apc+YOZbh0ijSTbqcRVZe9FrbZCK0+21vkouN9S6n CoAA== X-Gm-Message-State: AOAM532p8j5sKDPzZlM70ef/DpP+DxVF6YXK/qXY7FCvhgsQV3mV6L/u 2eeX4QXdvZyNKU++ZjmoI3Z2IFKiZ/4= X-Google-Smtp-Source: ABdhPJwa/hP5A6MiXOxOoi3OBm2DAdWqgoeChA5ckFxzXhHI1hZY7n8XnvgItvrCWzqn8KkSHd0Paw== X-Received: by 2002:a37:9947:: with SMTP id b68mr3609201qke.70.1606403544500; Thu, 26 Nov 2020 07:12:24 -0800 (PST) Received: from willemb.nyc.corp.google.com ([2620:0:1003:312:f693:9fff:fef4:3e8a]) by smtp.gmail.com with ESMTPSA id d48sm3181329qta.26.2020.11.26.07.12.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Nov 2020 07:12:22 -0800 (PST) From: Willem de Bruijn To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, soheil@google.com, Willem de Bruijn , Ayush Ranjan Subject: [PATCH net] sock: set sk_err to ee_errno on dequeue from errq Date: Thu, 26 Nov 2020 10:12:20 -0500 Message-Id: <20201126151220.2819322-1-willemdebruijn.kernel@gmail.com> X-Mailer: git-send-email 2.29.2.454.gaff20da3a2-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Willem de Bruijn When setting sk_err, set it to ee_errno, not ee_origin. Commit f5f99309fa74 ("sock: do not set sk_err in sock_dequeue_err_skb") disabled updating sk_err on errq dequeue, which is correct for most error types (origins): - sk->sk_err = err; Commit 38b257938ac6 ("sock: reset sk_err when the error queue is empty") reenabled the behavior for IMCP origins, which do require it: + if (icmp_next) + sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_origin; But read from ee_errno. Fixes: 38b257938ac6 ("sock: reset sk_err when the error queue is empty") Reported-by: Ayush Ranjan Signed-off-by: Willem de Bruijn --- net/core/skbuff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 1ba8f0163744..06c526e0d810 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4549,7 +4549,7 @@ struct sk_buff *sock_dequeue_err_skb(struct sock *sk) if (skb && (skb_next = skb_peek(q))) { icmp_next = is_icmp_err_skb(skb_next); if (icmp_next) - sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_origin; + sk->sk_err = SKB_EXT_ERR(skb_next)->ee.ee_errno; } spin_unlock_irqrestore(&q->lock, flags);