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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC619C47089 for ; Tue, 6 Dec 2022 03:12:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232481AbiLFDMT (ORCPT ); Mon, 5 Dec 2022 22:12:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232119AbiLFDMR (ORCPT ); Mon, 5 Dec 2022 22:12:17 -0500 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B3A625284 for ; Mon, 5 Dec 2022 19:12:16 -0800 (PST) Received: by mail-io1-f71.google.com with SMTP id y5-20020a056602120500b006cf628c14ddso11010407iot.15 for ; Mon, 05 Dec 2022 19:12:16 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=UvD+MZjtUR1zcO4JD+kq1ILF5xn9xebsMtnvhQcAkAE=; b=Ivubxhp8rhfUu56z9lFLcg1dEixpBA/plWP9arUmFEOhIV39ELGVbLc+mi6lcLSFPH JZZMoC3xExsStBuaXnvwvgkuJ0+v2GZxhv2LJRM3A+QClq9ObINwmGoa0oRnh3aAHejY jOQyBGDSIvG1aG3TQoqT2/Ia21EieIoPOPjVKXYboi3L4EmXW4hsvEeyEbkp32yk/G7J bnYs8ehXbujJaYvZLPEYyVKZkOns8AxCv/IoalBN43VtMllGXu4BDGNQ4XOqOIggjQ50 g7Im/4RLb0LF4Bu+ETz8HF7+eafj+sn7JcaF4ZVqpyyeEw5vHvSAuTHff9QXPnZnBDeh 8dhg== X-Gm-Message-State: ANoB5pn5saFwA+fXbmskiQZxw6yEB0+/sXieS0x4OuzbNdID9RmrEDZl FQzPA/HzowAdRvjJl+meR31Evnw77epuefHIQMrsM0AVWl0b X-Google-Smtp-Source: AA0mqf6A0GebHKYwEIp76zOIrRahHhD9zg1SBqJJFP7ufPb0tnRDBwWyKhcL9tmmAF8gUTA4P7QEV6FIh3yV6A26PFMBJA+62NY8 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:156c:b0:303:4885:a1fe with SMTP id k12-20020a056e02156c00b003034885a1femr6044451ilu.261.1670296335371; Mon, 05 Dec 2022 19:12:15 -0800 (PST) Date: Mon, 05 Dec 2022 19:12:15 -0800 In-Reply-To: <20221205235827.GR3600936@dread.disaster.area> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bd587705ef202b08@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in xfs_qm_dqfree_one From: syzbot To: david@fromorbit.com, djwong@kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4122 } 2641 jiffies s: 2877 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: bce93322 proc: proc_skip_spaces() shouldn't think it i.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=1566216b880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d58e7fe7f9cf5e24 dashboard link: https://syzkaller.appspot.com/bug?extid=912776840162c13db1a3 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=164cad83880000