From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f208.google.com (mail-oi1-f208.google.com [209.85.167.208]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8999533E346 for ; Sat, 13 Jun 2026 08:24:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781339061; cv=none; b=WPAKbpSD3DBzIVtrk1eQ20+1W7zOUWUiqUYPijVYGCus6tJBDjIRnPH1Og3xDqaPA2BfnWhLXC7TmtfiK/cVpJWh1TRCRqTgPBhVf8S0kEgUmc4ToEz0CInch6McOzge0IrQM0QZMH1kAZIWCIdtyK65vA3LIvdeJBB9FrcKEFs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781339061; c=relaxed/simple; bh=XCWVabs23TBSua4SlsCxE3xPr6XcoOzmTmQMLwLkb9g=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=XyKStnGKybvycc4nz3Q6Hb0GAjXpD+GpQ8D4OSrrCZeaNJpz2UdD78J0S2DEhehV4oQm482xoA3imFXJ/oVj+63DnHV2MfS7YISBwOrpcA+PMFT4epNMzIpjgcq77D/wFbngQz0kb0iErut4+pLBJe+TCyHpFPDmdnIklaxoSOg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.208 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f208.google.com with SMTP id 5614622812f47-48661b2ef8eso1575413b6e.0 for ; Sat, 13 Jun 2026 01:24:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781339058; x=1781943858; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/kErR5kmt4f7tu2hQl9EhHifxipTEaH8oT7UK99kSS4=; b=r4Q/0w6xyuj9vFDpTH+/3nM9XlxuDphP4blhfg/+uKMQC1EJ21oLueLkPMMedO04U6 ZlgVvEirQ7eVc+nF0SGrRPJj2u0gRBkVuazGuA2v7tnppockSsANFzYTvhgeRU0rb8lV EI7vGlP/5TzBD7U5eh8Ck2jN5UDUKA/hcy6UKkKiYXHW+xxuupmdjYzVdE13EinBuQRD UaPdoSlbyco/BNS5A6Gff888+PuP4Yr2StdhUVBTxxSGigV+WDzsa7YRgYJAJht05qgu MYIkQudtzvsfSCNh4HeuW5J/3TtxYBEEbyt6nkt+YHq90G9otCe6X11CaVNY3OxozBRc 15mQ== X-Gm-Message-State: AOJu0YxwguECsmzylNKhbxaY7OHdN4CntWg8SCOyw88MkVFEa5foVPYQ AgN0v1Z3HbB9Qu3SSu/iKcaIcrcmJat90HieL5roD61euV8Exe1ne8PNi70dRH3F8EpTUPGzLbk +4QCaHJvTiSJVKdauuieIEiNDhCR9c83OjgQdABLbbQOZu9V9mkyc8Lz3REGeRA== Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:d4a:b0:479:e96e:65aa with SMTP id 5614622812f47-4872f5f4e0emr3965341b6e.42.1781339058561; Sat, 13 Jun 2026 01:24:18 -0700 (PDT) Date: Sat, 13 Jun 2026 01:24:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a2d13b2.428ffe26.258b27.0164.GAE@google.com> Subject: [syzbot] [bluetooth?] INFO: trying to register non-static key in bt_accept_unlink From: syzbot To: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2d3090a8aeb5 Merge tag 'v7.1-p5' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=157291b6580000 kernel config: https://syzkaller.appspot.com/x/.config?x=65472e27d1590a04 dashboard link: https://syzkaller.appspot.com/bug?extid=534002670dd34a114fdc compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/90834e94de32/disk-2d3090a8.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e27c57900a9a/vmlinux-2d3090a8.xz kernel image: https://storage.googleapis.com/syzbot-assets/210244c0b7d3/bzImage-2d3090a8.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+534002670dd34a114fdc@syzkaller.appspotmail.com Bluetooth: hci1: hardware error 0x00 INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 UID: 0 PID: 5637 Comm: kworker/u9:3 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: hci1 hci_error_reset Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984 register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299 __lock_acquire+0xad/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:182 spin_lock_bh include/linux/spinlock.h:348 [inline] bt_accept_unlink+0x65/0x2c0 net/bluetooth/af_bluetooth.c:265 l2cap_sock_teardown_cb+0x17e/0x490 net/bluetooth/l2cap_sock.c:1682 l2cap_chan_del+0xb5/0x610 net/bluetooth/l2cap_core.c:658 l2cap_conn_del+0x33d/0x570 net/bluetooth/l2cap_core.c:1804 hci_disconn_cfm include/net/bluetooth/hci_core.h:2154 [inline] hci_conn_hash_flush+0x10d/0x260 net/bluetooth/hci_conn.c:2736 hci_dev_close_sync+0x85d/0x1150 net/bluetooth/hci_sync.c:5383 hci_dev_do_close net/bluetooth/hci_core.c:502 [inline] hci_error_reset+0x127/0x4c0 net/bluetooth/hci_core.c:998 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 slab kmalloc-2k start ffff888029aaa000 pointer offset 1400 size 2048 list_del corruption. prev->next should be ffff8880682f5578, but was 0000000000000001. (prev=ffff888029aaa578) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 5637 Comm: kworker/u9:3 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: hci1 hci_error_reset RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b e7 52 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 3c 8a 74 fd 49 8b 17 48 c7 c7 a0 be 28 8c 48 89 de 4c 89 f9 e8 e7 26 6b fc 90 <0f> 0b 4c 89 f7 e8 3c e7 52 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 0d RSP: 0018:ffffc9000202f800 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff8880682f5578 RCX: 5386ffdc73148000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cfd240 R12: 1ffff110053554af R13: dffffc0000000000 R14: ffff888029aaa578 R15: ffff888029aaa578 FS: 0000000000000000(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1552dd9062 CR3: 000000001f339000 CR4: 0000000000350ef0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:246 [inline] list_del_init include/linux/list.h:318 [inline] bt_accept_unlink+0x74/0x2c0 net/bluetooth/af_bluetooth.c:266 l2cap_sock_teardown_cb+0x17e/0x490 net/bluetooth/l2cap_sock.c:1682 l2cap_chan_del+0xb5/0x610 net/bluetooth/l2cap_core.c:658 l2cap_conn_del+0x33d/0x570 net/bluetooth/l2cap_core.c:1804 hci_disconn_cfm include/net/bluetooth/hci_core.h:2154 [inline] hci_conn_hash_flush+0x10d/0x260 net/bluetooth/hci_conn.c:2736 hci_dev_close_sync+0x85d/0x1150 net/bluetooth/hci_sync.c:5383 hci_dev_do_close net/bluetooth/hci_core.c:502 [inline] hci_error_reset+0x127/0x4c0 net/bluetooth/hci_core.c:998 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b e7 52 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 3c 8a 74 fd 49 8b 17 48 c7 c7 a0 be 28 8c 48 89 de 4c 89 f9 e8 e7 26 6b fc 90 <0f> 0b 4c 89 f7 e8 3c e7 52 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 0d RSP: 0018:ffffc9000202f800 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff8880682f5578 RCX: 5386ffdc73148000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1cfd240 R12: 1ffff110053554af R13: dffffc0000000000 R14: ffff888029aaa578 R15: ffff888029aaa578 FS: 0000000000000000(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1552dd9062 CR3: 000000001f339000 CR4: 0000000000350ef0 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup