------------[ cut here ]------------ notifier callback hci_suspend_notifier already registered WARNING: CPU: 1 PID: 11842 at kernel/notifier.c:28 notifier_chain_register kernel/notifier.c:28 [inline] WARNING: CPU: 1 PID: 11842 at kernel/notifier.c:28 notifier_chain_register+0x156/0x210 kernel/notifier.c:22 Modules linked in: CPU: 1 PID: 11842 Comm: syz-executor.4 Not tainted 6.0.0-rc4-syzkaller-00214-ge738455b2c6d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:notifier_chain_register kernel/notifier.c:28 [inline] RIP: 0010:notifier_chain_register+0x156/0x210 kernel/notifier.c:22 Code: 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a5 00 00 00 49 8b 75 00 48 c7 c7 c0 f2 eb 89 e8 7c 20 ea 07 <0f> 0b 41 bc ef ff ff ff e8 dd 2d 2b 00 44 89 e0 48 83 c4 18 5b 5d RSP: 0018:ffffc9000eb07d58 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88807910d108 RCX: 0000000000000000 RDX: ffff88805b123b00 RSI: ffffffff8161f408 RDI: fffff52001d60f9d RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88807910d108 R14: ffff8880774e5110 R15: dffffc0000000000 FS: 0000555556156400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555598c708 CR3: 000000002577f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __blocking_notifier_chain_register kernel/notifier.c:266 [inline] blocking_notifier_chain_register+0x6f/0xc0 kernel/notifier.c:284 hci_register_suspend_notifier net/bluetooth/hci_core.c:2749 [inline] hci_register_suspend_notifier+0x9d/0xc0 net/bluetooth/hci_core.c:2743 hci_sock_release+0x4a2/0x520 net/bluetooth/hci_sock.c:890 __sock_release+0xcd/0x280 net/socket.c:650 sock_close+0x18/0x20 net/socket.c:1365 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff0a883c43b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe80fb0800 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007ff0a883c43b RDX: ffffffffffffffb8 RSI: ffffffffffffffff RDI: 0000000000000004 RBP: 00007ff0a89ad980 R08: 0000000000000000 R09: 00007ff0a89b02b8 R10: 00007ffe80fb0900 R11: 0000000000000293 R12: 000000000004be1e R13: 00007ffe80fb0900 R14: 00007ff0a89abf80 R15: 0000000000000032