syzbot

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workqueue: cannot queue hci_rx_work on wq hci0
WARNING: CPU: 0 PID: 9571 at kernel/workqueue.c:2258 __queue_work+0xdf6/0x1090 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 9571 Comm: syz.0.996 Not tainted 6.14.0-rc7-syzkaller-00074-ga7f2e10ecd8f #0
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+0xdf6/0x1090 kernel/workqueue.c:2256
Code: e8 03 80 3c 28 00 74 08 4c 89 ff e8 c4 f3 9f 00 49 8b 37 49 81 c5 78 01 00 00 48 c7 c7 60 e7 29 8c 4c 89 ea e8 5b 6f f8 ff 90 <0f> 0b 90 90 e9 66 f4 ff ff e8 0c b4 38 00 90 0f 0b 90 e9 ad fc ff
RSP: 0018:ffffc9000d267a88 EFLAGS: 00010046
RAX: 8e4dedd529a14400 RBX: ffff88803950a440 RCX: ffff88803950a440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81819e52 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: 1ffff1100b312338
R13: ffff888059891978 R14: 0000000000000008 R15: ffff88804ea08a98
FS:  00007fd5979766c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd597975fe0 CR3: 0000000012708000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 queue_work_on+0x1c2/0x380 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:511 [inline]
 vhci_write+0x35a/0x490 drivers/bluetooth/hci_vhci.c:607
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd596b8bc1f
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:00007fd597976000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd596da6080 RCX: 00007fd596b8bc1f
RDX: 0000000000000007 RSI: 00002000000006c0 RDI: 00000000000000ca
RBP: 00007fd596c0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000006c0 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fd596da6080 R15: 00007ffceae0fdd8
 </TASK>