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=-5.6 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS 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 B4B68C04AAD for ; Tue, 7 May 2019 21:06:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 906BE205C9 for ; Tue, 7 May 2019 21:06:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728476AbfEGVGH (ORCPT ); Tue, 7 May 2019 17:06:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:52510 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726686AbfEGVGH (ORCPT ); Tue, 7 May 2019 17:06:07 -0400 Received: by mail-io1-f71.google.com with SMTP id n82so1708075iod.19 for ; Tue, 07 May 2019 14:06:06 -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=i0ea6qcnQd61vbI8zTdhw0aEpWQ9Mlm3sK4Plx8ZZ34=; b=IkFOq2q9x9b1cNl+pfV8bZL6wHuEWgH08aVahl5d+tgZkZO7L5HGJCHt/ILQE7vcaR uEguC2YAUIHKOBjJUcHGpwuz4guzaRW+zrstGIUHdQkgclckLxxkgssuUv1/HAoT5b7s qAWUVuJ2WIB3h9CQLUJiB9u1IfYC48Y0L/ljEK4TjRLUBc0/BgWqLXYF1wnZeZQZNztc DW5KqJ5AGF8EJjP641/5AYsb/1PplY6ZgTczjKjwG2yx5DPyr5kubmlvheJ6oUGM8t9h Qb0aAHb6eay8sMu6czvOzZh767FIU7znoI1y5rJOQNPQ7808gzQvi7CiFjKnv79Z7upR VQvA== X-Gm-Message-State: APjAAAVXFAmY6ueAaxqXQR0KIy6ov7bkn2nitTlEpmPcWXHntwEdHMEJ TE7Nnf6odgkFgiS0b8mBeaqo/2nkjeFlfzHU1tvH0vKqKh+A X-Google-Smtp-Source: APXvYqwviF0xJxHe46j5bqms5DHO0TndCvSi+GNUBcjDPBsGCSLKdU29VhEZ0WAQRpIfAcyXdPYocu9RIPfTPT+fF7bNU6r4CWkr MIME-Version: 1.0 X-Received: by 2002:a6b:fe0d:: with SMTP id x13mr3993691ioh.1.1557263166391; Tue, 07 May 2019 14:06:06 -0700 (PDT) Date: Tue, 07 May 2019 14:06:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dace5e0588529558@google.com> Subject: WARNING: ODEBUG bug in del_timer (3) From: syzbot To: ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davejwatson@fb.com, davem@davemloft.net, doronrk@fb.com, jakub.kicinski@netronome.com, kafai@fb.com, kjlu@umn.edu, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, vakul.garg@nxp.com, yhs@fb.com, yuehaibing@huawei.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 71ae5fc8 Merge tag 'linux-kselftest-5.2-rc1' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=136c06f0a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=511168bc7720867 dashboard link: https://syzkaller.appspot.com/bug?extid=13d91ed9bbcd7dc13230 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17128012a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+13d91ed9bbcd7dc13230@syzkaller.appspotmail.com ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) WARNING: CPU: 1 PID: 22 at lib/debugobjects.c:325 debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.1.0+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events sk_psock_destroy_deferred Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:566 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972 RIP: 0010:debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Code: dd 60 f4 a1 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 60 f4 a1 87 48 c7 c7 00 ea a1 87 e8 44 02 12 fe <0f> 0b 83 05 31 10 2d 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff8880a9a3f970 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815aec76 RDI: ffffed1015347f20 RBP: ffff8880a9a3f9b0 R08: ffff8880a9a2a5c0 R09: ffffed1015d240f1 R10: ffffed1015d240f0 R11: ffff8880ae920787 R12: 0000000000000001 R13: ffffffff889ac720 R14: ffffffff81605b60 R15: ffff8880990fdba8 debug_object_assert_init lib/debugobjects.c:694 [inline] debug_object_assert_init+0x23d/0x2f0 lib/debugobjects.c:665 debug_timer_assert_init kernel/time/timer.c:725 [inline] debug_assert_init kernel/time/timer.c:770 [inline] del_timer+0x7c/0x120 kernel/time/timer.c:1192 try_to_grab_pending+0x2d7/0x710 kernel/workqueue.c:1249 __cancel_work_timer+0xc4/0x520 kernel/workqueue.c:3079 cancel_delayed_work_sync+0x1b/0x20 kernel/workqueue.c:3252 strp_done+0x5d/0xf0 net/strparser/strparser.c:526 sk_psock_destroy_deferred+0x3a/0x6c0 net/core/skmsg.c:558 process_one_work+0x98e/0x1790 kernel/workqueue.c:2263 worker_thread+0x98/0xe40 kernel/workqueue.c:2409 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches