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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 D3A6AC5DF61 for ; Thu, 7 Nov 2019 13:44:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B1A37207FA for ; Thu, 7 Nov 2019 13:44:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389648AbfKGNoC (ORCPT ); Thu, 7 Nov 2019 08:44:02 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:42450 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388785AbfKGNmG (ORCPT ); Thu, 7 Nov 2019 08:42:06 -0500 Received: by mail-io1-f69.google.com with SMTP id w1so1863694ioj.9 for ; Thu, 07 Nov 2019 05:42:06 -0800 (PST) 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=9/okOXkdmyxLp+oZdwuHSBXPqMIfQXakCi7QdBsKzL0=; b=tFxTkOdx6RhMcxAjlhqpLZVV4nC1zYuWCC9CDcMUbGmd/JQB4QURk36x25OFN0KgCv ZzcLmghJI/7rrgcT1Yd/Y1gFZUusnEcNEflYqVgveaLrOOaQKIj9vAoG/NAPUscGzJJV m0alb5FFqkkiIXeHKgZFSpXfbQ5r2ZWDrU3Y1ZW6By4CV4+9mX6zXwRMy7+JqMYCpvUH +3/lIJGlJsXBQyF+xUPQQVt2CHnqrienYu+poU6tCHK2DAP+dyrOkvoo2U3fPhRopveN 3St9qLwnjwIyJDbu8Y3RTHEhhPzMBE+msEUQTuRHCN34uxZ5TiecwxyYl7byWa2XI/gc q/6w== X-Gm-Message-State: APjAAAUEhdraXXcNxUPd35rJ8Y0xNY+rCybZDTSwQKZ6K3M6+kbk6Nui tRYbRJHTER5dNQ3tgRlWHW+TfL8v19sxX5L0GG03nWJSXLjp X-Google-Smtp-Source: APXvYqz62VjOcTgDOFUdTJ8ThmzQiqH3nU+L2+77ligMCjRnKr8tpBSanxdr4g/glcLnWKYfWPvY/mTB8gNEft9wB4uAI6DEqooQ MIME-Version: 1.0 X-Received: by 2002:a6b:f914:: with SMTP id j20mr3763359iog.223.1573134125585; Thu, 07 Nov 2019 05:42:05 -0800 (PST) Date: Thu, 07 Nov 2019 05:42:05 -0800 In-Reply-To: <00000000000024f01405708aab83@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bd5cdb0596c1d4a7@google.com> Subject: Re: WARNING: ODEBUG bug in p9_fd_close From: syzbot To: asmadeus@codewreck.org, davem@davemloft.net, dominique.martinet@cea.fr, ericvh@gmail.com, jiangyiwen@huwei.com, linux-kernel@vger.kernel.org, lucho@ionkov.net, netdev@vger.kernel.org, rminnich@sandia.gov, syzkaller-bugs@googlegroups.com, tomasbortoli@gmail.com, v9fs-developer@lists.sourceforge.net 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 suspects this bug was fixed by commit: commit 430ac66eb4c5b5c4eb846b78ebf65747510b30f1 Author: Tomas Bortoli Date: Fri Jul 20 09:27:30 2018 +0000 net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12b5c342600000 start commit: 1e4b044d Linux 4.18-rc4 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=25856fac4e580aa7 dashboard link: https://syzkaller.appspot.com/bug?extid=d702a81aadeedd565723 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17fa550c400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1214c2c2400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree() For information about bisection process see: https://goo.gl/tpsmEJ#bisection