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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 2D05EC43603 for ; Sat, 7 Dec 2019 19:45:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 06F3B21835 for ; Sat, 7 Dec 2019 19:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726669AbfLGTpB (ORCPT ); Sat, 7 Dec 2019 14:45:01 -0500 Received: from mail-io1-f70.google.com ([209.85.166.70]:45708 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726528AbfLGTpB (ORCPT ); Sat, 7 Dec 2019 14:45:01 -0500 Received: by mail-io1-f70.google.com with SMTP id m18so7488340ioj.12 for ; Sat, 07 Dec 2019 11:45:01 -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=wS16iwY4SHAgS9TQBNqZiLR/a6ESQzbpzGaub4GpqpA=; b=JTf5Ej+BNRlOm6VjbssSTQR8HeeSAY/RVWZ3nW89qoPpnz3QDfpSoJwbs9bJjNmUV8 ekmbZnSu1ikJB4zr4k/y6xUgxxLMgb7ekxrBWfKLE6j202Mp0WoUzQU/kXi4obxt1b7Q oiGoowM3ZTmXq1R3X4Iros+KXNt5nerfgyoV5Pa4S1JrnUcphy9LZKgNqwJxIlpdZefi PgVnicRpweTqQwR4DfPFvrJ2oWnIuT4RoPwlE8Msga8BHkEOCn2Xa5INQ8J6+w7NRZXp 7YimiMTToVcwsJcyflcU09Z0mySCOIbO/VhlCztnjciOymCuAls2DL/df9SQr1JpDyKb Ef4Q== X-Gm-Message-State: APjAAAVqvDY0qnTGIPAdVYX+WGjt5gHqqkAmNexmSrOYb1xX8PJxQD7j Pd+frmYE3GBSwj7bGMUCQuwN8ZDAF0yMhz7vJDRhFAQu5al/ X-Google-Smtp-Source: APXvYqxMOz34v4xow1dYjI+bbaCYsdOSN0ZdxyIPBJDZ8r/SQQJ0i2OUsyFKZ5sPLHCufzkzxsAmqoemLoiPMD9bsX8FJt+NfxS0 MIME-Version: 1.0 X-Received: by 2002:a6b:f60e:: with SMTP id n14mr14826689ioh.147.1575747900539; Sat, 07 Dec 2019 11:45:00 -0800 (PST) Date: Sat, 07 Dec 2019 11:45:00 -0800 In-Reply-To: <000000000000f665a30570885589@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000de09e70599226583@google.com> Subject: Re: KASAN: use-after-free Read in __queue_work (2) 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, viro@zeniv.linux.org.uk 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 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=15661282e00000 start commit: ca04b3cc Merge tag 'armsoc-fixes' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=2ca6c7a31d407f86 dashboard link: https://syzkaller.appspot.com/bug?extid=1c9db6a163a4000d0765 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1473a452400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14087748400000 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