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,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 9AC47C432C0 for ; Sat, 23 Nov 2019 23:37:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76E5320656 for ; Sat, 23 Nov 2019 23:37:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727040AbfKWXhC (ORCPT ); Sat, 23 Nov 2019 18:37:02 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:48443 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726788AbfKWXhC (ORCPT ); Sat, 23 Nov 2019 18:37:02 -0500 Received: by mail-il1-f199.google.com with SMTP id j68so10133012ili.15 for ; Sat, 23 Nov 2019 15:37:01 -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=rcXyQARNFeEGX/5R/wh8uboQxfvT9hdMO0gGiQWOSiI=; b=DsDX3kn6G1xtkcULwIVQ3qDOdVM867gYhvo1CAcSo6PqIVFz1T/dWYP2O40bAcMVAP QCnc7aQaryucxDo4PqqoiMWg56VissdUwOZz0Yfj51/yhPJjYhOde3uI+DyccQ3Kq3Sn Dzb1o8fKXWDnOioUzb8PQgkIKfhpJVHigsCAsQim33obgevWrNMh7ozUSNibB7vThsW1 4F40vulPY44N9m7P/5AhnsxSyZPILlfh3uYmG7C7RkXnPYzGYTtfLDUhMoFfcfzQbF6C JoK7T6BaYshHIRhLoGoOQAECnKfbgGtaPPOdSWV0ciywkYKBTupNI2GJ3eVkbgOs0K6h MrFQ== X-Gm-Message-State: APjAAAWscxag81aP0ZObE0/RyT/HPaW7syC83+EbOkYTR+AjIlLwAicf POSGeuzoD5uVoatK1R9oj7l2o96D+i9vIZk3G1jfJ9ZiHow6 X-Google-Smtp-Source: APXvYqwj40xk+Xd7ru4QMKddn8/SsIpJKtP1YXxZ615/+EY9PfAFOY8RE0ZRU+3mTx9eSm5J1cqivLB4uhge43PShk8uF8pfq69t MIME-Version: 1.0 X-Received: by 2002:a92:3904:: with SMTP id g4mr7836256ila.242.1574552221276; Sat, 23 Nov 2019 15:37:01 -0800 (PST) Date: Sat, 23 Nov 2019 15:37:01 -0800 In-Reply-To: <000000000000f665a30570885589@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d45f7b05980c01ce@google.com> Subject: Re: KASAN: use-after-free Read in __queue_work (2) From: syzbot To: davem@davemloft.net, ericvh@gmail.com, linux-kernel@vger.kernel.org, lucho@ionkov.net, netdev@vger.kernel.org, rminnich@sandia.gov, syzkaller-bugs@googlegroups.com, v9fs-developer@lists.sourceforge.net, viro@zeniv.linux.org.uk 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 7594bf37ae9ffc434da425120c576909eb33b0bc Author: Al Viro Date: Mon Jul 17 02:53:08 2017 +0000 9p: untangle ->poll() mess bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ad235ee00000 start commit: ca04b3cc Merge tag 'armsoc-fixes' of git://git.kernel.org/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=11ad235ee00000 console output: https://syzkaller.appspot.com/x/log.txt?x=16ad235ee00000 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 Reported-by: syzbot+1c9db6a163a4000d0765@syzkaller.appspotmail.com Fixes: 7594bf37ae9f ("9p: untangle ->poll() mess") For information about bisection process see: https://goo.gl/tpsmEJ#bisection