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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 E5B29C43381 for ; Wed, 6 Mar 2019 03:52:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B439620663 for ; Wed, 6 Mar 2019 03:52:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728966AbfCFDwF (ORCPT ); Tue, 5 Mar 2019 22:52:05 -0500 Received: from mail-it1-f199.google.com ([209.85.166.199]:50992 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727650AbfCFDwF (ORCPT ); Tue, 5 Mar 2019 22:52:05 -0500 Received: by mail-it1-f199.google.com with SMTP id i63so4250317itb.0 for ; Tue, 05 Mar 2019 19:52:04 -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=8O1gdkXxksIJT3PF3rvFfv9eH/Z4P5Ac0q8Bb0sdadk=; b=R/ZEW3kFJJWvG+nkf6jhu/rBrGNFoW1Ms8nj0jn1zvEQDprsAKMHZIt2eOloQeuJGJ nn8yuk0OFQgcKdClxUiz2Vtc5csHQwRdfSSvtNpXxeIWr/d5tdLv0M+wJnmUwFCAlzBq jWt3/xkxG1Gtn9edZLsqGutKmpue4dIK5trdUvnH6zfKC7ZhaqThypDmfBZLY2yAE70V yECy/fKNl65aYTe62ipAic+hUrZF1Tv0P75QeG2boOs6YVcdYtgBEpV4ROeMY9BviY9G bnvcMhD52gwzlaQXdDevxnShetkzzF7CA+zXs1OXV15jHwRXQt59XzLLy1SxXOhc/Q18 iiIA== X-Gm-Message-State: APjAAAX2lrIcOvBUghxhbVEPOZmIko8k0cZ+a1ySGkgyGHQ9iQ7/jBur sLP/PQu9SViijTaQj5gem+zbprLaXt6ccH40xFptSK6Q1LzU X-Google-Smtp-Source: APXvYqxgeeYIdO0wGOS76vOnbygMOgeh5MOzemGVRntks2m89w+BZEAHT5x3p6UDexZSbaa2QokHGOXZwuYmumjAIe1ylQ8iSDlh MIME-Version: 1.0 X-Received: by 2002:a24:78c:: with SMTP id f134mr4456585itf.30.1551844324132; Tue, 05 Mar 2019 19:52:04 -0800 (PST) Date: Tue, 05 Mar 2019 19:52:04 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000afcf18058364e99e@google.com> Subject: WARNING: locking bug in __icmp_send From: syzbot To: davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org 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: d9862cfbe209 Merge tag 'mips_5.1' of git://git.kernel.org/.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=10dfb0e7200000 kernel config: https://syzkaller.appspot.com/x/.config?x=73d88a42238825ad dashboard link: https://syzkaller.appspot.com/bug?extid=173d67242daa7ce45f85 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=153d6923200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+173d67242daa7ce45f85@syzkaller.appspotmail.com Enabling of bearer rejected, already enabled Enabling of bearer rejected, already enabled Enabling of bearer rejected, already enabled ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS) WARNING: CPU: 0 PID: 9 at kernel/locking/lockdep.c:3315 __lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 Enabling of bearer rejected, already enabled Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.0.0+ #109 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+0x172/0x1f0 lib/dump_stack.c:113 Enabling of bearer rejected, already enabled panic+0x2cb/0x65c kernel/panic.c:214 kobject: 'loop0' (00000000f02900e9): kobject_uevent_env kobject: 'loop0' (00000000f02900e9): fill_kobj_path: path = '/devices/virtual/block/loop0' __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 kobject: 'loop2' (00000000763050ef): kobject_uevent_env invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:__lock_acquire+0x13bf/0x4700 kernel/locking/lockdep.c:3315 kobject: 'loop2' (00000000763050ef): fill_kobj_path: path = '/devices/virtual/block/loop2' Code: 8b 1d 69 20 06 08 45 85 db 0f 85 d6 f4 ff ff 48 c7 c6 80 a4 6b 87 48 c7 c7 e0 78 6b 87 44 89 9c 24 98 00 00 00 e8 0f 26 ec ff <0f> 0b 44 8b 9c 24 98 00 00 00 e9 af f4 ff ff 8b 3d bc e4 fe 08 85 RSP: 0018:ffff8880aa26f300 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000066c4c53a RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815a65c6 RDI: ffffed101544de52 RBP: ffff8880aa26f4d0 R08: ffff8880aa25c240 R09: fffffbfff1133335 R10: fffffbfff1133334 R11: ffffffff889999a3 R12: ffff8880aa25cb28 R13: ffff8880aa25cb32 R14: 0000000066c4c53a R15: ffff8880aa25c240 Enabling of bearer rejected, already enabled lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 kobject: 'loop5' (0000000002a93434): kobject_uevent_env kobject: 'loop5' (0000000002a93434): fill_kobj_path: path = '/devices/virtual/block/loop5' __raw_spin_trylock include/linux/spinlock_api_smp.h:90 [inline] _raw_spin_trylock+0x62/0x80 kernel/locking/spinlock.c:128 spin_trylock include/linux/spinlock.h:339 [inline] icmp_xmit_lock net/ipv4/icmp.c:219 [inline] __icmp_send+0x553/0x1400 net/ipv4/icmp.c:666 Enabling of bearer rejected, already enabled kobject: 'loop0' (00000000f02900e9): kobject_uevent_env kobject: 'loop0' (00000000f02900e9): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (000000004f39548c): kobject_uevent_env icmp_send include/net/icmp.h:47 [inline] __udp4_lib_rcv+0x1fb6/0x2c50 net/ipv4/udp.c:2323 kobject: 'loop1' (000000004f39548c): fill_kobj_path: path = '/devices/virtual/block/loop1' udp_rcv+0x22/0x30 net/ipv4/udp.c:2482 ip_protocol_deliver_rcu+0x60/0x8f0 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 kobject: 'loop2' (00000000763050ef): kobject_uevent_env NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:255 kobject: 'loop2' (00000000763050ef): fill_kobj_path: path = '/devices/virtual/block/loop2' dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1e1/0x300 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 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. 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