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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 43644C433DB for ; Fri, 29 Jan 2021 17:43:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0E37B64DFD for ; Fri, 29 Jan 2021 17:43:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231511AbhA2RnJ (ORCPT ); Fri, 29 Jan 2021 12:43:09 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:50983 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232651AbhA2RhA (ORCPT ); Fri, 29 Jan 2021 12:37:00 -0500 Received: by mail-il1-f198.google.com with SMTP id x11so8265239ill.17 for ; Fri, 29 Jan 2021 09:36:33 -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=lfC0qpdQ1T9Xl29m7ejvYwmPN8ZlSIQE5xkZ0CP3l2o=; b=lNbRO33iNh0u1z2CyukoKAkizdYNYrhYknsE+Exg68m/sSG5Vvhk732D7046/TrVVa Cu+QsQqz6L2E+gBg4rl6H1Rj0ehHWl/XVZ+D5RIODq5a6O8bSaqBeY8megl66NVNg9C1 ZXsNc1MboB0PFsEtvvT8ZytcuIGs92N/3ZR1LYpyKFevtyPu0WhvHQi+YNsenXF0EXZw lZpI1CF2P0COmQEzOpbM5f/9Hnv1qKnwBVIPMs6NCMiOWyyYGE4feE9OHEKX5M77yFwN MWZ11ltg/Cxa139htd1NzY5rTw039SxZgFAT2ZR75wqaNJsYjaLSYdQfzjaSuBp5521H XiBg== X-Gm-Message-State: AOAM5318w9xHDnptJBvUIQ9YKVDL4HrDYQIA9lY25T4CH7nrT5iUsfj6 VgV1MIAsN6FheiI+JcFpzn5A3+zQeU/PeRzoqaC/kmg8zbfM X-Google-Smtp-Source: ABdhPJwBqVzozXEi/mXDr2fTOIGUbDevyAvTt6YrjOmicFDrPHmlaw/gllzSdTT6n1lw8j4CnDsCEL4/dHr1l1MlNOZe/mz1iRWI MIME-Version: 1.0 X-Received: by 2002:a6b:f107:: with SMTP id e7mr4301666iog.191.1611941767913; Fri, 29 Jan 2021 09:36:07 -0800 (PST) Date: Fri, 29 Jan 2021 09:36:07 -0800 In-Reply-To: <000000000000d4b96a05aedda7e2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000079a40e05ba0d702f@google.com> Subject: Re: possible deadlock in send_sigio (2) From: syzbot To: bfields@fieldses.org, boqun.feng@gmail.com, jlayton@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, will@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 8d1ddb5e79374fb277985a6b3faa2ed8631c5b4c Author: Boqun Feng Date: Thu Nov 5 06:23:51 2020 +0000 fcntl: Fix potential deadlock in send_sig{io, urg}() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17455db4d00000 start commit: 7b1b868e Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3416bb960d5c705d dashboard link: https://syzkaller.appspot.com/bug?extid=907b8537e3b0e55151fc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=163e046b500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12f8b623500000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: fcntl: Fix potential deadlock in send_sig{io, urg}() For information about bisection process see: https://goo.gl/tpsmEJ#bisection