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=-5.4 required=3.0 tests=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 703B3C3F2D7 for ; Thu, 5 Mar 2020 18:45:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 55C702072D for ; Thu, 5 Mar 2020 18:45:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726650AbgCESpP (ORCPT ); Thu, 5 Mar 2020 13:45:15 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:44347 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726440AbgCESpM (ORCPT ); Thu, 5 Mar 2020 13:45:12 -0500 Received: by mail-io1-f71.google.com with SMTP id q13so4685500iob.11 for ; Thu, 05 Mar 2020 10:45:10 -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:message-id:subject:from:to; bh=Us+arUmf9LULLEoI/2RUiRYdXpjh+bbbhvxTGcbSIJI=; b=XpHRTk/OyMzheP5TQu3yaxuf9dTNs4rnN5YXkeIcxCUXd3atCN4EiGIsNFtVjq05cW oifXiBgpZXn3Qy9aZGiEmlIOrpmrNF1RHZIsZGifCl/zqtqa8XeQBjYhg5ICJ1MHw1yq kGiiQSlr7vf/mvc/7nSi8r+WoOUJ+jPKkz8YTEnBt7qVxQHLDdm7lbKFLC+VMnb0uoeL 1LRHjigonxx6ngvLPRRDlCcbBq7WFrWQOhyQlTag7rV8hTEgSpbj08JxWJn/ZjsXLQP3 /GR4nSyXO4R50UQ1R+SpVKgSNLoFG+cOLHOy66f2griOaljg1jnWqawZVegoKWIgDZ6r RPbw== X-Gm-Message-State: ANhLgQ1t9boHRhdWoO3e604cchi1dn0i0u1XwQ8Laj/fB8NzwjOxFd50 /fisGzpg8EYX3l6cLGczffgbB2PPcA9kS2783/cxkS9rDn3D X-Google-Smtp-Source: ADFU+vu+HBroAP8GhX4MgZZrEGf61yyeDI3yT6EXMomMaEI8pFEs2q62sNcHi5xcO3sBL5wVv+Omd3OdQPMp01s4UvTQ+s36wQBm MIME-Version: 1.0 X-Received: by 2002:a92:3c8d:: with SMTP id j13mr295375ilf.267.1583433910278; Thu, 05 Mar 2020 10:45:10 -0800 (PST) Date: Thu, 05 Mar 2020 10:45:10 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bf5ff105a01fef33@google.com> Subject: WARNING: ODEBUG bug in tcf_queue_work From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" 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: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10535e45e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358 dashboard link: https://syzkaller.appspot.com/bug?extid=9c2df9fd5e9445b74e01 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=168c4839e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10587419e00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+9c2df9fd5e9445b74e01@syzkaller.appspotmail.com ------------[ cut here ]------------ ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 9599 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 lib/debugobjects.c:485 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9599 Comm: syz-executor772 Not tainted 5.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:485 Code: dd 00 e7 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 00 e7 91 88 48 c7 c7 60 dc 91 88 e8 07 6e 9f fd <0f> 0b 83 05 03 6c ff 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffffc90005cd70b0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815ebe46 RDI: fffff52000b9ae08 RBP: ffffc90005cd70f0 R08: ffff888093472400 R09: fffffbfff16a3370 R10: fffffbfff16a336f R11: ffffffff8b519b7f R12: 0000000000000001 R13: ffffffff89bac220 R14: 0000000000000000 R15: 1ffff92000b9ae24 debug_object_activate+0x346/0x470 lib/debugobjects.c:652 debug_rcu_head_queue kernel/rcu/rcu.h:176 [inline] __call_rcu kernel/rcu/tree.c:2597 [inline] call_rcu+0x2f/0x700 kernel/rcu/tree.c:2683 queue_rcu_work+0x8a/0xa0 kernel/workqueue.c:1742 tcf_queue_work+0xd3/0x110 net/sched/cls_api.c:206 route4_change+0x19e8/0x2250 net/sched/cls_route.c:550 tc_new_tfilter+0xb82/0x2480 net/sched/cls_api.c:2103 rtnetlink_rcv_msg+0x824/0xaf0 net/core/rtnetlink.c:5427 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2478 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5454 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x753/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmsg+0x105/0x1d0 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446709 Code: e8 1c ba 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 ab 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb9e0c67d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dbc68 RCX: 0000000000446709 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00000000006dbc60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 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