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, URIBL_BLOCKED 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 938DBC433B4 for ; Wed, 19 May 2021 17:35:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A13E61353 for ; Wed, 19 May 2021 17:35:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229807AbhESRgn (ORCPT ); Wed, 19 May 2021 13:36:43 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:48100 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229632AbhESRgl (ORCPT ); Wed, 19 May 2021 13:36:41 -0400 Received: by mail-io1-f71.google.com with SMTP id s188-20020a6b2cc50000b0290456cc0f2184so1144351ios.14 for ; Wed, 19 May 2021 10:35:21 -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=UZHccjix8oNmHRhg4MY5ztlGF7uJvQZGhEY/WEJTmWA=; b=rp/X4okRQs0jzgugHP2Ad5UN5EzNQumFT+oXMn6EkzPbOWmhkukYPdJynRtu/BJ8z0 DduoWK8BLRChEBzZVusoZpvU0PUVcToRukKc7hF/Olkm+785+TmgWLqOoIFScjjvASV0 1z86iZIGsTaC4AIpcCB/OUUBRZ2uRwHoPy0ZKfFrGLnG3YTFIywfx6D/7fHiQJx6zMIQ UHLBBCfX0+5fxhtMS3UkYcD2kHsfI1qDsHFRfmKg8LgDtlYaC4Gt5NYc8WyH7saXRHrE tXlujcf9kprA2XVVPZ6FZvbSVXwe0zW/1BFgW/abuOUYeKc9IN+08i4ETiQQPAx8AMH7 XXdQ== X-Gm-Message-State: AOAM530If6M8A+nqlQ0KaupgVxmdmAlaE88oAlUuNz7HT5pfahJ7HKKT b6TfEUB9pXLyP6IJH4jEN8MFYHoJ0WPrGc31vSzu6DxxZvMB X-Google-Smtp-Source: ABdhPJx8nIme+6MkuMdV8XSTC3jU4BYJoZreomahlwSDgpBYdZiJB6DjldurwWK0/dGzPp+ku2sAA7L0X+o4m/XAC4FtRnQ5BbQt MIME-Version: 1.0 X-Received: by 2002:a05:6e02:c5:: with SMTP id r5mr130961ilq.48.1621445720834; Wed, 19 May 2021 10:35:20 -0700 (PDT) Date: Wed, 19 May 2021 10:35:20 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003687bd05c2b2401d@google.com> Subject: [syzbot] BUG: MAX_LOCKDEP_KEYS too low! (2) From: syzbot To: Jason@zx2c4.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, wireguard@lists.zx2c4.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: b81ac784 net: cdc_eem: fix URL to CDC EEM 1.0 spec git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=15a257c3d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=5b86a12e0d1933b5 dashboard link: https://syzkaller.appspot.com/bug?extid=a70a6358abd2c3f9550f 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+a70a6358abd2c3f9550f@syzkaller.appspotmail.com BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 PID: 5917 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 register_lock_class.cold+0x14/0x19 kernel/locking/lockdep.c:1281 __lock_acquire+0x102/0x5230 kernel/locking/lockdep.c:4781 lock_acquire kernel/locking/lockdep.c:5512 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5477 flush_workqueue+0x110/0x13e0 kernel/workqueue.c:2786 drain_workqueue+0x1a5/0x3c0 kernel/workqueue.c:2951 destroy_workqueue+0x71/0x800 kernel/workqueue.c:4382 alloc_workqueue+0xc40/0xef0 kernel/workqueue.c:4343 wg_newlink+0x43d/0x9e0 drivers/net/wireguard/device.c:335 __rtnl_newlink+0x1062/0x1710 net/core/rtnetlink.c:3452 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3500 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5562 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb25febe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0 R13: 00007fff30a5021f R14: 00007fb25febe300 R15: 0000000000022000 --- 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.