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=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 03497C43381 for ; Sat, 23 Mar 2019 05:36:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C643C2148D for ; Sat, 23 Mar 2019 05:36:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726100AbfCWFgC (ORCPT ); Sat, 23 Mar 2019 01:36:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:49327 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725835AbfCWFgC (ORCPT ); Sat, 23 Mar 2019 01:36:02 -0400 Received: by mail-io1-f71.google.com with SMTP id z6so3481786ioh.16 for ; Fri, 22 Mar 2019 22:36:01 -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=z++wN6MsNBlJdUdBn+pWH89WCwCZZPoYFH9M+GJyXWc=; b=oirhKra7/CTM6aER1THQgxHouy6258uOLgsDfCjKRb0v2q+izPpo6qn2pX7mNXEuki COs3KRYdnZbXFSG0NymsB1VlTv9MNra8kHUQiiphRV65mxlXzL1lVge8KpKw1BiwDtRx KfdMtV5mST4nQ+1AYZ/OiKNiLsejgFE7XYEefW8eYZhl56VDx2X2IY4exBdcTI/Cuck3 ZuZ/v2ngcFJWlb6DRyjGfWi+ZSH0XFn3ZjmbQR/+TwftgKKTDK+8WLWX9ByD7/z2EUMa tNvwpdJl3e4BgSuVWewkumtyI8egnCegSdCA1mTbp5RjVw5j7JLoMAtPEbkIxtRfmmNI HjOQ== X-Gm-Message-State: APjAAAU7CB07DwbGsVqWgViJUgLe8of69rK7m1THmKOBvgRJp92FQtsb tJ8Zd122W9qXLyOXAsVyBHEkE2IyjWNujQibw5Ot5EtB05Xx X-Google-Smtp-Source: APXvYqzOkAJf9gB05Xqe+7jV0AzuXLOTdRwVNgTajFmFt+x6ObxihAWLOmt7wZGlqXgX8k7SBHd7/v7weC4udn7bK2KLYS5yUicW MIME-Version: 1.0 X-Received: by 2002:a6b:760b:: with SMTP id g11mr9702414iom.249.1553319361315; Fri, 22 Mar 2019 22:36:01 -0700 (PDT) Date: Fri, 22 Mar 2019 22:36:01 -0700 In-Reply-To: <0000000000009ed0ce058474a0c1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c10d6e0584bc5866@google.com> Subject: Re: WARNING: suspicious RCU usage in xfrm_get_policy 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@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=10bddbef200000 start commit: 75e6a83b Add linux-next specific files for 20190319 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=12bddbef200000 console output: https://syzkaller.appspot.com/x/log.txt?x=14bddbef200000 kernel config: https://syzkaller.appspot.com/x/.config?x=84a8ad88e2cbdfd4 dashboard link: https://syzkaller.appspot.com/bug?extid=670c11fba80a72c50a6a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=129a0aa3200000 Reported-by: syzbot+670c11fba80a72c50a6a@syzkaller.appspotmail.com Fixes: f10e0010fae8 ("net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm") For information about bisection process see: https://goo.gl/tpsmEJ#bisection