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 B3D30C43334 for ; Sun, 5 Jun 2022 14:04:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244504AbiFEOEO (ORCPT ); Sun, 5 Jun 2022 10:04:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240521AbiFEOEN (ORCPT ); Sun, 5 Jun 2022 10:04:13 -0400 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D7CBD13C for ; Sun, 5 Jun 2022 07:04:11 -0700 (PDT) Received: by mail-il1-f200.google.com with SMTP id c1-20020a928e01000000b002d1b20aa761so10088755ild.6 for ; Sun, 05 Jun 2022 07:04:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=4D4EPvBGgDbUWnPc5BEACuk6+5YNX+C0cKGERi/DBJ8=; b=kDfHUez49h6J2qTHsX/PtzhAaXq9Z7sntX9cbwqtOFnS1eLgLzYDxQ5gZboXO0LkWf 6EtDiGCYXon3yded8JTn6DUssDwREyoDrtf9ZJDvOMm0Ph4dpFX6/W1q6ti75j456c9m rvuRoBG+KEq4DdGGRAJsWUvunnu1jGGav1ix+FvttdlEnrNSL5p9fpficEzhZ7t6yrtj cLTT5pyhRyMZ3OqjrD/9olDAO/SOnRoU2GXxh0fI0F/PQJh5dzZy6vpZ2AsONzH7KPpA Lvd1fuzUxgjEL3L4rjRBN7wCarTwUc6NJ6kAK1RaWw55h0K1ygJ98AFg0ky7zk3Z7/Nj iRhQ== X-Gm-Message-State: AOAM5300892kB/cagPKVZc/KQ107Xj7HFDVdED87fEOYlP2DEYZ+eiB2 UIwwitcqkjPjB+6ST6uiLFKofIw0EZPamHA94M6BawzM4xAf X-Google-Smtp-Source: ABdhPJw5RtAjJ9sH9FoXUF1lunz8h/glEZDtAHgB703YQ4wP1RQFdYHVIOF7ajjSeAi+NBHPw38zIhXd/rAHATUj+4708B4jtkFf MIME-Version: 1.0 X-Received: by 2002:a05:6602:2d13:b0:665:6e8b:7d84 with SMTP id c19-20020a0566022d1300b006656e8b7d84mr8694210iow.133.1654437850502; Sun, 05 Jun 2022 07:04:10 -0700 (PDT) Date: Sun, 05 Jun 2022 07:04:10 -0700 In-Reply-To: <000000000000fd54f805e0351875@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000061dcef05e0b3d4e3@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in filp_close From: syzbot To: arve@android.com, asml.silence@gmail.com, axboe@kernel.dk, brauner@kernel.org, gregkh@linuxfoundation.org, hdanton@sina.com, hridya@google.com, io-uring@vger.kernel.org, joel@joelfernandes.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, maco@android.com, surenb@google.com, syzkaller-bugs@googlegroups.com, tkjos@android.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org syzbot has bisected this issue to: commit 6319194ec57b0452dcda4589d24c4e7db299c5bf Author: Al Viro Date: Thu May 12 21:08:03 2022 +0000 Unify the primitives for file descriptor closing bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=134cbe4ff00000 start commit: 952923ddc011 Merge tag 'pull-18-rc1-work.namei' of git://g.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10ccbe4ff00000 console output: https://syzkaller.appspot.com/x/log.txt?x=174cbe4ff00000 kernel config: https://syzkaller.appspot.com/x/.config?x=3096247591885bfa dashboard link: https://syzkaller.appspot.com/bug?extid=47dd250f527cb7bebf24 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=114f7bcdf00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1659a94ff00000 Reported-by: syzbot+47dd250f527cb7bebf24@syzkaller.appspotmail.com Fixes: 6319194ec57b ("Unify the primitives for file descriptor closing") For information about bisection process see: https://goo.gl/tpsmEJ#bisection