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 D8745C4740A for ; Sat, 21 Sep 2019 15:50:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BAB3620C01 for ; Sat, 21 Sep 2019 15:50:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438221AbfIUPuI (ORCPT ); Sat, 21 Sep 2019 11:50:08 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:40486 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392043AbfIUPuH (ORCPT ); Sat, 21 Sep 2019 11:50:07 -0400 Received: by mail-io1-f70.google.com with SMTP id r20so15806769ioh.7 for ; Sat, 21 Sep 2019 08:50:07 -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=e1WwvsIOYgkKP6m2QdsEqob6hucr8LgwvJH9je6vT4o=; b=QCo3ykPl2Y3YwfC9El/fkMd+Le6snToxgQh+GZm6hNIYXeAaYGZEHWDu1shnQSdqQG 7FPyOZaOMIm47S9GjhNaIEnQB8CfJQev1nN3TQ9iZiqjdXpBJeSO/7GVFU/y0MiTTwPW CVfktfG6h4wUtdmj+lqOImbYZF+oN+vk7GVr10nQ78YDw3F8Jcn/MYX8jJHynzUq8Da/ RlaomQbJTeRqR6dh2quZEzZz7GNUqlMtckpzMzgDyFjrDVqD11F2qlz12PazVW4Slckf saJtuauKkDHIRDmtlIuuFTDhnJYH43KMJ7/iDaA7GwDNGEdUUIu1GvR7DeqVGIVTUYet HStQ== X-Gm-Message-State: APjAAAVobviuo6GK97oVKozDMWs9pfU03S+ayzfJYbQWyCIdRBR+U1nf ydvpFO4yiUksAudKAKfWkk+5HNzBNy9n19NVpEfWBf7EcUod X-Google-Smtp-Source: APXvYqytDHK6Dr2YK7Ap6GUTihvNdQJ786D0hVc+JqFAK50SjmBDdxPD3xsJORDF0yRO3OvNJPMW6N/jlodpy18MHHirkaWBA2Yi MIME-Version: 1.0 X-Received: by 2002:a6b:b643:: with SMTP id g64mr8423961iof.149.1569081006755; Sat, 21 Sep 2019 08:50:06 -0700 (PDT) Date: Sat, 21 Sep 2019 08:50:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000814c405931224fc@google.com> Subject: WARNING: locking bug in selinux_netlbl_socket_connect From: syzbot To: eparis@parisplace.org, linux-kernel@vger.kernel.org, paul@paul-moore.com, sds@tycho.nsa.gov, selinux@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: f97c81dc Merge tag 'armsoc-late' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=127b709d600000 kernel config: https://syzkaller.appspot.com/x/.config?x=10283c2b00ab4cd7 dashboard link: https://syzkaller.appspot.com/bug?extid=5fa07e4e18e4eb1ccb12 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12996841600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+5fa07e4e18e4eb1ccb12@syzkaller.appspotmail.com WARNING: CPU: 0 PID: 10315 at kernel/locking/lockdep.c:840 look_up_lock_class kernel/locking/lockdep.c:840 [inline] WARNING: CPU: 0 PID: 10315 at kernel/locking/lockdep.c:840 register_lock_class+0x206/0x1850 kernel/locking/lockdep.c:1185 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 10315 Comm: syz-executor.0 Not tainted 5.3.0+ #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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:219 __warn.cold+0x20/0x4c kernel/panic.c:576 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+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:840 [inline] RIP: 0010:register_lock_class+0x206/0x1850 kernel/locking/lockdep.c:1185 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 aa 10 00 00 4c 3b 7b 18 44 8b 35 d5 de 55 09 74 0b 48 81 3b a0 65 06 8a 74 02 <0f> 0b 45 85 ed 0f 84 71 03 00 00 f6 85 70 ff ff ff 01 0f 85 64 03 RSP: 0018:ffff888096777a48 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffff888093ff78e0 RCX: 0000000000000000 RDX: 1ffff110127fef1f RSI: 0000000000000000 RDI: ffff888093ff78f8 RBP: ffff888096777b10 R08: 1ffff11012ceef51 R09: ffffffff8aaea0e0 R10: ffffffff8a7753c8 R11: 0000000000000000 R12: ffffffff8a7b5d20 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff884766e0 __lock_acquire+0xf4/0x4e70 kernel/locking/lockdep.c:3837 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4487 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:343 [inline] lock_sock_nested+0x41/0x120 net/core/sock.c:2929 lock_sock include/net/sock.h:1522 [inline] selinux_netlbl_socket_connect+0x20/0xc0 security/selinux/netlabel.c:607 selinux_socket_connect+0x6a/0x90 security/selinux/hooks.c:4745 security_socket_connect+0x77/0xc0 security/security.c:1958 __sys_connect+0x19d/0x330 net/socket.c:1824 __do_sys_connect net/socket.c:1839 [inline] __se_sys_connect net/socket.c:1836 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1836 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459a09 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc302ec5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459a09 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc302ec66d4 R13: 00000000004bff42 R14: 00000000004d1eb0 R15: 00000000ffffffff 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