syzbot

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workqueue: cannot queue hci_conn_timeout on wq hci1
WARNING: CPU: 0 PID: 15091 at kernel/workqueue.c:2257 __queue_work+0xd03/0x1160 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 15091 Comm: syz.5.1782 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__queue_work+0xd03/0x1160 kernel/workqueue.c:2256
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 4b 04 00 00 48 8b 75 18 4c 89 fa 48 c7 c7 20 27 8c 8b e8 1e 15 f7 ff 90 <0f> 0b 90 90 e9 2f f7 ff ff e8 0f e2 38 00 90 0f 0b 90 e9 b4 f5 ff
RSP: 0018:ffffc9000c7477f8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc9001be84000
RDX: 0000000000080000 RSI: ffffffff817b7ef5 RDI: 0000000000000001
RBP: ffff88801e6f4948 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888076034000 R14: ffff88801e6f4990 R15: ffff888076034178
FS:  00007fe0031d56c0(0000) GS:ffff8881249d1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fafbff8 CR3: 0000000046703000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __queue_delayed_work+0x35b/0x460 kernel/workqueue.c:2509
 queue_delayed_work_on+0x1b5/0x200 kernel/workqueue.c:2561
 queue_delayed_work include/linux/workqueue.h:684 [inline]
 hci_conn_drop include/net/bluetooth/hci_core.h:1699 [inline]
 hci_conn_drop include/net/bluetooth/hci_core.h:1673 [inline]
 l2cap_chan_del+0x5a0/0x8f0 net/bluetooth/l2cap_core.c:671
 l2cap_chan_close+0xfe/0xa30 net/bluetooth/l2cap_core.c:844
 l2cap_sock_shutdown+0x3cc/0x10e0 net/bluetooth/l2cap_sock.c:1384
 l2cap_sock_release+0x8d/0x250 net/bluetooth/l2cap_sock.c:1431
 __sock_release+0xb3/0x270 net/socket.c:662
 sock_close+0x1c/0x30 net/socket.c:1455
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x150/0x240 kernel/task_work.c:227
 get_signal+0x1d0/0x26d0 kernel/signal.c:2807
 arch_do_signal_or_restart+0x8f/0x7c0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x85/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe004f8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe0031d5038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 00007fe0051e6180 RCX: 00007fe004f8efc9
RDX: 000000000000000e RSI: 0000200000001280 RDI: 000000000000000b
RBP: 00007fe005011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe0051e6218 R14: 00007fe0051e6180 R15: 00007ffc60603ec8
 </TASK>