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 378B3C43381 for ; Tue, 19 Mar 2019 20:57:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 05754213F2 for ; Tue, 19 Mar 2019 20:57:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727563AbfCSU5B (ORCPT ); Tue, 19 Mar 2019 16:57:01 -0400 Received: from mail-it1-f198.google.com ([209.85.166.198]:41180 "EHLO mail-it1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726627AbfCSU5A (ORCPT ); Tue, 19 Mar 2019 16:57:00 -0400 Received: by mail-it1-f198.google.com with SMTP id q184so197146itd.6 for ; Tue, 19 Mar 2019 13:57:00 -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=/c0cLgztPxpr4gyUPJgRCZbpdW1E/Hy6xSGhyI6afgY=; b=MK1K26LWmWi9+ooOMeXcB/HTkluX0dyHJ6jyeYoYVrLlFEtfNLMU/ypW3bz8BWIM3d LUekdk5PbGm1wh/r9pZejvLd1Jp05jpPewEHpErZfgMiN8oByiyLWIWSDpPpQ1f+7eby vCwdh5McxggRpqPdWWkkwi7qPl4jleXTk64cl9xN2TcEtUW1eKKBG+KaxmYIwf+o5k+2 VULBNqUq/8jWaWhnxVfh226Uht/XqFFT10N0yXWHIOjGxdybbiHWJO1lcMX9oguYFDeo nzKbSA+IMrkxlQxOQaQANoh4ICcfbyiIHvCIHzvRfc654qCkI+mP/U/PFBjWdOFMzj49 XTTQ== X-Gm-Message-State: APjAAAU8Ut7x4UM7Y6dLIbzGJYu8VxPL6AiotNbW5aQPznS3zjdhcH7e kWJBL8hk8taXQt0O9FvUjEEIn804k9w+LRakixC5Id9mA7f9 X-Google-Smtp-Source: APXvYqz/Pn19S9Ka5Um6SHuK7Rsa7htNw2ddmuDXs55897Lo8IQhF5I2C/bds0hA0yVsOW9Yg3fZICdIk+IX6QI4Ln824z1kLAFN MIME-Version: 1.0 X-Received: by 2002:a24:4acc:: with SMTP id k195mr1323423itb.30.1553029020128; Tue, 19 Mar 2019 13:57:00 -0700 (PDT) Date: Tue, 19 Mar 2019 13:57:00 -0700 In-Reply-To: <0000000000008a14a5058474a025@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001224fa058478bf4b@google.com> Subject: Re: WARNING: suspicious RCU usage in xfrm_get_spdinfo 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=166cae2b200000 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=156cae2b200000 console output: https://syzkaller.appspot.com/x/log.txt?x=116cae2b200000 kernel config: https://syzkaller.appspot.com/x/.config?x=59cd5d43b5df6955 dashboard link: https://syzkaller.appspot.com/bug?extid=bfb3cbc2e9467b566c8b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12af288b200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147162a3200000 Reported-by: syzbot+bfb3cbc2e9467b566c8b@syzkaller.appspotmail.com Fixes: f10e0010 ("net: xfrm: Add '_rcu' tag for rcu protected pointer in netns_xfrm")