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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 E936AC43381 for ; Wed, 20 Mar 2019 16:13:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1A692183E for ; Wed, 20 Mar 2019 16:13:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727376AbfCTQNC (ORCPT ); Wed, 20 Mar 2019 12:13:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:38627 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726844AbfCTQNB (ORCPT ); Wed, 20 Mar 2019 12:13:01 -0400 Received: by mail-io1-f71.google.com with SMTP id b16so2508640iot.5 for ; Wed, 20 Mar 2019 09:13:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=nscdqcp2NdWhvT5RDMpoyXQ/8Y3AQw4wtQJaTg+659U=; b=mBaiz90F0KAm8ZixEI21Qh35si+nxjqwFat2LsVT+KcquCKKsiT5uimQlynIzdA8f4 PreIgRswRm7XPv/Cn3JkMK5Qv9WGTVNrO2V0UBueIGXcdUpqCWRLRmgFU4PRaf/2RfmF 1jy6lXLShKGy5uD6V5CP+KPlFBANFCBVhzooO2Q9T1e+aCTE8wCeQhzBER9o/Ub53c+E i05aG5TfJc3PHBGUfOyUkL17v6cl/IWpzav3OD9UFJFqHK8oi8ZzBMPw+3u3wAX5ZQ34 gSeGwm1GxFGBTO87IVH2TlXYDhoPzWy+RCROsqI1zl4gVoA53cU5VG4eYjELhi91485Z Zotg== X-Gm-Message-State: APjAAAXZqGMGDKJV5UPbzemn00oJscmo+en/xqsrHNd58PyKw66s3oyl e3S7ojEyxFZXEWxPo8auDKkFGb/OlaUZFC+CzsZRIRzS/MqE X-Google-Smtp-Source: APXvYqxo5h7ak5xUxwZVqIsNhVY1O5NjE9NxxzsLDslwq5dn5XXI9U7Iwp5aVCM2HkN8ytheRbh5u12JcjoxiPk3qhx6HZrauGWO MIME-Version: 1.0 X-Received: by 2002:a02:3941:: with SMTP id w1mr3260102jae.7.1553098381064; Wed, 20 Mar 2019 09:13:01 -0700 (PDT) Date: Wed, 20 Mar 2019 09:13:01 -0700 In-Reply-To: <0000000000009c1aca058474a076@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004e05d8058488e521@google.com> Subject: Re: WARNING: suspicious RCU usage in xfrm_get_sadinfo From: syzbot To: davem@davemloft.net, fw@strlen.de, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com, suyj.fnst@cn.fujitsu.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit f10e0010fae8174dc20bdc872bcaa85baa925cb7 Author: Su Yanjun Date: Thu Mar 7 01:54:08 2019 +0000 net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11e8e843200000 start commit: f10e0010 net: xfrm: Add '_rcu' tag for rcu protected point.. git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=13e8e843200000 console output: https://syzkaller.appspot.com/x/log.txt?x=15e8e843200000 kernel config: https://syzkaller.appspot.com/x/.config?x=59cd5d43b5df6955 dashboard link: https://syzkaller.appspot.com/bug?extid=2792672c6a63f1dc867c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a2e24d200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131ab8ef200000 Reported-by: syzbot+2792672c6a63f1dc867c@syzkaller.appspotmail.com Fixes: f10e0010 ("net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm")