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=-9.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 6C886C43441 for ; Wed, 14 Nov 2018 22:26:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 296852254A for ; Wed, 14 Nov 2018 22:26:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="OwYDfVXt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 296852254A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389372AbeKOIbc (ORCPT ); Thu, 15 Nov 2018 03:31:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:38828 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726269AbeKOIbb (ORCPT ); Thu, 15 Nov 2018 03:31:31 -0500 Received: from sasha-vm.mshome.net (unknown [64.114.255.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3AAAE2252B; Wed, 14 Nov 2018 22:26:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1542234386; bh=kV8mWC6Mh21uX3TD10kuAh+JdNdR9QpbZbtXtJJXX7M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OwYDfVXt/Qo9Oxjx93kpoA+aCVLB5vkxEGy24zJ0yQv2eGUSmQT7vEBNVvrTBOYR4 SkPCLfI9dLqf7FhdxBrXwDY/eGHXy8XPGSLHd5IpS4fJFwLG60K6sddafn+1OWEbul kGyplRNkv0kMu+MIow2eprqepa3ybntxhvftPkqc= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jozsef Kadlecsik , Pablo Neira Ayuso , Sasha Levin , netfilter-devel@vger.kernel.org, coreteam@netfilter.org Subject: [PATCH AUTOSEL 4.4 4/8] netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment() Date: Wed, 14 Nov 2018 17:26:10 -0500 Message-Id: <20181114222618.100378-4-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181114222618.100378-1-sashal@kernel.org> References: <20181114222618.100378-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jozsef Kadlecsik [ Upstream commit 17b8b74c0f8dbf9b9e3301f9ca5b65dd1c079951 ] The function is called when rcu_read_lock() is held and not when rcu_read_lock_bh() is held. Signed-off-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin --- include/linux/netfilter/ipset/ip_set_comment.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h index 8d0248525957..9f34204978e4 100644 --- a/include/linux/netfilter/ipset/ip_set_comment.h +++ b/include/linux/netfilter/ipset/ip_set_comment.h @@ -41,11 +41,11 @@ ip_set_init_comment(struct ip_set_comment *comment, rcu_assign_pointer(comment->c, c); } -/* Used only when dumping a set, protected by rcu_read_lock_bh() */ +/* Used only when dumping a set, protected by rcu_read_lock() */ static inline int ip_set_put_comment(struct sk_buff *skb, struct ip_set_comment *comment) { - struct ip_set_comment_rcu *c = rcu_dereference_bh(comment->c); + struct ip_set_comment_rcu *c = rcu_dereference(comment->c); if (!c) return 0; -- 2.17.1