------------[ cut here ]------------
workqueue: cannot queue hci_rx_work on wq hci0
WARNING: CPU: 0 PID: 5332 at kernel/workqueue.c:2258 __queue_work+0xdff/0x10a0 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-13524-gf4d2ef48250a #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__queue_work+0xdff/0x10a0 kernel/workqueue.c:2256
Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 5b 68 a3 00 49 8b 37 49 81 c5 78 01 00 00 48 c7 c7 c0 cf 49 8c 4c 89 ea e8 02 5f f8 ff 90 <0f> 0b 90 90 e9 5d f4 ff ff e8 c3 3e 39 00 90 0f 0b 90 e9 a7 fc ff
RSP: 0018:ffffc9000d537a68 EFLAGS: 00010046
RAX: ba5fdbea976d2f00 RBX: ffff888000fb8000 RCX: 0000000000100000
RDX: ffffc9000e823000 RSI: 0000000000000dd7 RDI: 0000000000000dd8
RBP: dffffc0000000000 R08: ffffffff81827a12 R09: 1ffff11003f847d2
R10: dffffc0000000000 R11: ffffed1003f847d3 R12: 1ffff110024c6e38
R13: ffff888012637178 R14: 0000000000000008 R15: ffff888052228a98
FS:  00007f8e2a09c6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e2a09bfd8 CR3: 0000000040c12000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 queue_work_on+0x1c4/0x380 kernel/workqueue.c:2392
 queue_work include/linux/workqueue.h:662 [inline]
 hci_recv_frame+0x598/0x6f0 net/bluetooth/hci_core.c:2926
 vhci_get_user drivers/bluetooth/hci_vhci.c:512 [inline]
 vhci_write+0x353/0x4a0 drivers/bluetooth/hci_vhci.c:608
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x70f/0xd10 fs/read_write.c:684
 ksys_write+0x19d/0x2d0 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e2918bc1f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f8e2a09c000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8e293a6080 RCX: 00007f8e2918bc1f
RDX: 0000000000000009 RSI: 00002000000007c0 RDI: 00000000000000ca
RBP: 00007f8e2920e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000007c0 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f8e293a6080 R15: 00007fffb9947438
 </TASK>