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 33A4CC5479D for ; Mon, 9 Jan 2023 18:55:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235060AbjAISzX (ORCPT ); Mon, 9 Jan 2023 13:55:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232599AbjAISzW (ORCPT ); Mon, 9 Jan 2023 13:55:22 -0500 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CA6026DD for ; Mon, 9 Jan 2023 10:55:22 -0800 (PST) Received: by mail-il1-f200.google.com with SMTP id i14-20020a056e020d8e00b003034b93bd07so6705354ilj.14 for ; Mon, 09 Jan 2023 10:55:22 -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=hZ2myS91auaAPOzUbacG8wfmkGsOxK+7+KK8Wi7uEtk=; b=BxhmCSVcK8VoWJrpcU2FdU56rA2GfnU/p4QUQiphBgxRiR7ojE/wnkw22cZ5RiMCAB OX1FpKz0fwqMrbXZm+Ss/sKjY8exs1dh3fMyVp2/gLGWZEJ8hgRvNlA22o7VkJ3stMcy ABHsHQux+SF1WmB7dbpGoOQLEiUSXCRk1SioDCnA6qhuORB4MBhLsaOUC37suhsGPNye ZBaeCngdA8cNWfsimqi/YTH+WtkP9p6i+VapjYufZfd5h8TvwTc9Lz9fnDEWOqetmPDo BLyrREOnSq7oomPzimZmf3bsw+PgRZZphmefcOw3jHa+uqhHr0yCdhmYbxBGAIWQhoKf +jOg== X-Gm-Message-State: AFqh2kpG503FzO0ohxo8+XEdVmad+Rmyg9gaalLkU2BeRLTJllLbfqKy re6EOmvmdAKmATOpSbjPJc6gmskGNAS58W4rof6Y9cmco5aQ X-Google-Smtp-Source: AMrXdXtmXqKmSIDKVAPjJ4BWYHm/KidAV+MsbsgLKVCZKGN4pDAUj08f5RekwiqOZhBguvx5a47fGiraS5NViND0cXBxZpoQ5/D0 MIME-Version: 1.0 X-Received: by 2002:a92:d5cf:0:b0:30b:b741:205c with SMTP id d15-20020a92d5cf000000b0030bb741205cmr6207437ilq.113.1673290521494; Mon, 09 Jan 2023 10:55:21 -0800 (PST) Date: Mon, 09 Jan 2023 10:55:21 -0800 In-Reply-To: <36d665d6-3cd7-ffa8-da4f-1ceb67052ce7@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000023cc9d05f1d94f29@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in io_wqe_worker (2) From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@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: { P5550 } 2678 jiffies s: 2801 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: a4b98579 Merge branch 'io_uring-6.2' into syztest git tree: git://git.kernel.dk/linux.git syztest console output: https://syzkaller.appspot.com/x/log.txt?x=1490bc16480000 kernel config: https://syzkaller.appspot.com/x/.config?x=8b79b14037065d92 dashboard link: https://syzkaller.appspot.com/bug?extid=ad53b671c30ddaba634d compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied.