syzbot

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ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0
WARNING: CPU: 1 PID: 3608 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline]
WARNING: CPU: 1 PID: 3608 at lib/debugobjects.c:505 debug_object_assert_init+0x1fa/0x250 lib/debugobjects.c:892
Modules linked in:
CPU: 1 PID: 3608 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-13667-g21f9c8a13bb2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:debug_print_object lib/debugobjects.c:502 [inline]
RIP: 0010:debug_object_assert_init+0x1fa/0x250 lib/debugobjects.c:892
Code: e8 8b 54 a3 fd 4c 8b 45 00 48 c7 c7 c0 58 0a 8b 48 c7 c6 c0 55 0a 8b 48 c7 c2 60 5a 0a 8b 31 c9 49 89 d9 31 c0 e8 e6 88 17 fd <0f> 0b ff 05 7a ab eb 09 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc90003cff458 EFLAGS: 00010046
RAX: 09efa6c0300c1300 RBX: 0000000000000000 RCX: ffff88801be83b00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffffff8aafbee0 R08: ffffffff816d56dd R09: ffffed1017364f14
R10: ffffed1017364f14 R11: 1ffff11017364f13 R12: dffffc0000000000
R13: ffff888078f5c9d0 R14: 0000000000000019 R15: ffffffff91a2cc48
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8b8093318 CR3: 000000001f576000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 debug_timer_assert_init kernel/time/timer.c:792 [inline]
 debug_assert_init kernel/time/timer.c:837 [inline]
 del_timer+0xa5/0x3d0 kernel/time/timer.c:1257
 try_to_grab_pending+0x150/0x820 kernel/workqueue.c:1275
 __cancel_work_timer+0x161/0x740 kernel/workqueue.c:3121
 mgmt_index_removed+0x2a0/0x3e0 net/bluetooth/mgmt.c:8939
 hci_unregister_dev+0x28e/0x460 net/bluetooth/hci_core.c:2688
 vhci_release+0x7f/0xd0 drivers/bluetooth/hci_vhci.c:568
 __fput+0x3b9/0x820 fs/file_table.c:320
 task_work_run+0x146/0x1c0 kernel/task_work.c:177
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x55e/0x20a0 kernel/exit.c:795
 do_group_exit+0x23b/0x2f0 kernel/exit.c:925
 get_signal+0x172f/0x1780 kernel/signal.c:2857
 arch_do_signal_or_restart+0x8d/0x750 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x74/0x160 kernel/entry/common.c:166
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7c1d03bebb
Code: Unable to access opcode bytes at RIP 0x7f7c1d03be91.
RSP: 002b:00007ffecc53c580 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007ffecc53c620 RCX: 00007f7c1d03bebb
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffecc53c430
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000000b48f R14: 0000000000000003 R15: 00007ffecc53c660
 </TASK>