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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 C6837C432BE for ; Mon, 23 Aug 2021 09:17:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AC45A6135F for ; Mon, 23 Aug 2021 09:17:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229726AbhHWJSB (ORCPT ); Mon, 23 Aug 2021 05:18:01 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:48730 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235791AbhHWJSB (ORCPT ); Mon, 23 Aug 2021 05:18:01 -0400 Received: by mail-io1-f69.google.com with SMTP id d12-20020a6b680c000000b005b86e36a1f4so9650883ioc.15 for ; Mon, 23 Aug 2021 02:17:18 -0700 (PDT) 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:message-id:subject:from:to; bh=sYOMm1BeExwLMpG9wV0sSmPzlu1bC8ry9xId7Ih8E+k=; b=ShunJ2m5mjabGsfC8u/s4uGiKfQes5IgGQx6DnJuTihBc+1DXfRoCUKw6ifRFnOLIv uCetaL4/ww1B3XhkEJ9X/1jEdl4u2bwU/lHILX2kCqXXz7uPfP9CAKzNsjizzAKmPQzS ELfQOrmWe8LaQ4+Xj852eO7ZksVL8KSy3lr4BOezOW5/hXykuFISW3ICnyAesbZAvprZ cQdLzauVdf0eJmbh72zfSv2egPyWZYLKmZjfkj6TrBRyyLgZe1dOInCLFMoR1KM0QsX4 ocW3nMAyQHTuoEkZXEn12lIIviYSDxTPDkrQmWzCCOdC8RhLbu+9rp2Shxs7HLn6ELQo IrOA== X-Gm-Message-State: AOAM532nViWWm4t12BatBVBeh+MGsLEECqTKq7je5HJRLtjmBUzvSiXn qtiRzu4Tb2+RPITh2qjXYiDVC5GTl3No6gxtYcU32miZt4W1 X-Google-Smtp-Source: ABdhPJxRzhgfJEVGs4FC30PGotc+vZiWb1ZStPH9YMIv6v5ow+fBugiaVuOY2Ytv6rOLvdqFkZjj4zuQSMdJ8FYVyPMU8Eo7SAVR MIME-Version: 1.0 X-Received: by 2002:a02:a490:: with SMTP id d16mr29818895jam.42.1629710238709; Mon, 23 Aug 2021 02:17:18 -0700 (PDT) Date: Mon, 23 Aug 2021 02:17:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dd79fc05ca367b9d@google.com> Subject: [syzbot] WARNING in io_try_cancel_userdata 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 found the following issue on: HEAD commit: 86ed57fd8c93 Add linux-next specific files for 20210820 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1565bd55300000 kernel config: https://syzkaller.appspot.com/x/.config?x=f64eccb415bd479d dashboard link: https://syzkaller.appspot.com/bug?extid=b0c9d1588ae92866515f compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b0c9d1588ae92866515f@syzkaller.appspotmail.com WARNING: CPU: 1 PID: 5870 at fs/io_uring.c:5975 io_try_cancel_userdata+0x30f/0x540 fs/io_uring.c:5975 Modules linked in: CPU: 0 PID: 5870 Comm: iou-wrk-5860 Not tainted 5.14.0-rc6-next-20210820-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_try_cancel_userdata+0x30f/0x540 fs/io_uring.c:5975 Code: 07 e8 e5 9d 95 ff 48 8b 7c 24 08 e8 ab 02 58 07 e9 6f fe ff ff e8 d1 9d 95 ff 41 bf 8e ff ff ff e9 5f fe ff ff e8 c1 9d 95 ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc900055f7a88 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888181aa83c0 RCX: 0000000000000000 RDX: ffff88803fb88000 RSI: ffffffff81e0dacf RDI: ffff888181aa8410 RBP: ffff88803fb88000 R08: ffffffff899ad660 R09: ffffffff81e23c44 R10: 0000000000000027 R11: 000000000000000e R12: 1ffff92000abef53 R13: 0000000000000000 R14: ffff8880b34d0000 R15: ffff888181aa8420 FS: 00007f7a08d50700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c72e000 CR3: 0000000168b9b000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: io_async_cancel fs/io_uring.c:6014 [inline] io_issue_sqe+0x22d5/0x65a0 fs/io_uring.c:6407 io_wq_submit_work+0x1dc/0x300 fs/io_uring.c:6511 io_worker_handle_work+0xa45/0x1840 fs/io-wq.c:533 io_wqe_worker+0x2cc/0xbb0 fs/io-wq.c:582 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.