------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 0 PID: 3615 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 0 PID: 3615 at lib/debugobjects.c:505 debug_object_assert_init+0x1fa/0x250 lib/debugobjects.c:892 Modules linked in: CPU: 0 PID: 3615 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-10391-gb2a88c212e65 #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 7b f6 a4 fd 4c 8b 45 00 48 c7 c7 80 05 ea 8a 48 c7 c6 80 02 ea 8a 48 c7 c2 20 07 ea 8a 31 c9 49 89 d9 31 c0 e8 76 9b 19 fd <0f> 0b ff 05 2a 59 cd 09 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c RSP: 0018:ffffc90003eef438 EFLAGS: 00010046 RAX: ab3574c1e659f300 RBX: 0000000000000000 RCX: ffff88807f175880 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8a8fafe0 R08: ffffffff816cd2cd R09: ffffed1017344f14 R10: ffffed1017344f14 R11: 1ffff11017344f13 R12: dffffc0000000000 R13: ffff888074c2c9d0 R14: 0000000000000011 R15: ffffffff918359d0 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000614a40 CR3: 0000000026100000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x151/0xba0 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: 0033:0x7fccf1688317 Code: Unable to access opcode bytes at RIP 0x7fccf16882ed. RSP: 002b:00007ffff1a77c98 EFLAGS: 00000202 ORIG_RAX: 0000000000000102 RAX: 0000000000000000 RBX: 00007ffff1a77d20 RCX: 00007fccf1688317 RDX: 00000000000001ff RSI: 00007ffff1a77d20 RDI: 00000000ffffff9c RBP: 00007ffff1a77cfc R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffff1a77a37 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000000caaa R14: 0000000000000003 R15: 00007ffff1a77d60