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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 EB6DDC433E2 for ; Wed, 2 Sep 2020 18:18:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF0F2208C7 for ; Wed, 2 Sep 2020 18:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728047AbgIBSS0 (ORCPT ); Wed, 2 Sep 2020 14:18:26 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:40583 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726177AbgIBSSW (ORCPT ); Wed, 2 Sep 2020 14:18:22 -0400 Received: by mail-io1-f70.google.com with SMTP id f8so327040iow.7 for ; Wed, 02 Sep 2020 11:18:21 -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=cK3CWKmoLTK8XtOV6ppK2kthnvGS5AXhqjGaJqo+KkA=; b=eZouro58NSwt92Rg66kQ+hJIGm4zw352qNNIqUNvmhhu1lASWD3Rge+JWvd1Vr4+W5 F5VN/eZEsMJ3bW1jKc/Jgh0+U5ZihOZT6CIRhxb6nYG9Lm+NlgV4saiHJKqcbDCnDQSN 36B4vs3o/mWo/WynsRuVVklVq794/1s3rpTd3Dje7LyQinzuJe0m3UdMz3/IichoYssE xJ6zDkNgzD6zPSoohvuPxa3MLKcWxgjRZ6pJLoNaeJ59v+1JZELUCE94b3wVc5t0O1no CzWVHVAzAy1B+wmCorrI7B8MKF+I+SW75YlRWMiR8u6H4pkV8YlmrZm3UB2WncZsjA/B FL7A== X-Gm-Message-State: AOAM531np3z7vv55nWTE6wNMKq49YIW3Tg4pJKVpWydFLrJrdKQfJWfG xAu+8x5hlobYUrloQd/wcGhIv/nlplHBLE9g28usDuFrV2t3 X-Google-Smtp-Source: ABdhPJwRj3WGWI0ggBxZa82Ttr2hrMkMffTNT5rFzBnzuRcK3elghESc34kdHqR433BDavBXprWMY/7saEkS7GDUqZW6HdjGPR8q MIME-Version: 1.0 X-Received: by 2002:a5d:9d5a:: with SMTP id k26mr4349958iok.207.1599070701107; Wed, 02 Sep 2020 11:18:21 -0700 (PDT) Date: Wed, 02 Sep 2020 11:18:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001c3dac05ae58a990@google.com> Subject: WARNING: ODEBUG bug in process_one_work (2) From: syzbot To: elver@google.com, linux-kernel@vger.kernel.org, miaoqinglang@huawei.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 4d41ead6 Merge tag 'block-5.9-2020-08-28' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1196ce61900000 kernel config: https://syzkaller.appspot.com/x/.config?x=978db74cb30aa994 dashboard link: https://syzkaller.appspot.com/bug?extid=91923aae0b157bd6c0c5 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b1cbb6900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+91923aae0b157bd6c0c5@syzkaller.appspotmail.com ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: xprt_init_autodisconnect+0x0/0x150 include/linux/refcount.h:274 WARNING: CPU: 1 PID: 8854 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 lib/debugobjects.c:485 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8854 Comm: kworker/1:10 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events kfree_rcu_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x4a kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:485 Code: dd a0 26 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd a0 26 94 88 48 c7 c7 00 1c 94 88 e8 52 38 a6 fd <0f> 0b 83 05 53 4f 13 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 RSP: 0018:ffffc9000b68fb28 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: ffff8880a216c300 RSI: ffffffff815dafc7 RDI: fffff520016d1f57 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b R10: 0000000000000000 R11: 0000000035383854 R12: ffffffff89be2ea0 R13: ffffffff81638450 R14: dead000000000100 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline] debug_check_no_obj_freed+0x301/0x41c lib/debugobjects.c:998 kmem_cache_free_bulk+0x9e/0x190 mm/slab.c:3718 kfree_bulk include/linux/slab.h:411 [inline] kfree_rcu_work+0x506/0x8c0 kernel/rcu/tree.c:3150 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches