------------[ cut here ]------------
WARNING: CPU: 0 PID: 5645 at kernel/workqueue.c:1441 __queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441
Modules linked in:
CPU: 0 PID: 5645 Comm: syz.2.431 Not tainted 6.1.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441
Code: e9 9d fc ff ff 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 0f 8c c7 fc ff ff 48 8b 3c 24 e8 8d c2 7d 00 e9 b9 fc ff ff e8 13 a6 2d 00 <0f> 0b 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fd a5 2d 00
RSP: 0018:ffffc9000555f788 EFLAGS: 00010087
RAX: ffffffff815320cd RBX: 0000000000010000 RCX: 0000000000080000
RDX: ffffc9000de61000 RSI: 0000000000005a0b RDI: 0000000000005a0c
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100ed199ac
R10: ffffed100ed199ac R11: 1ffff1100ed199ab R12: ffff88807896a800
R13: ffff88807896a9c0 R14: 0000000000000008 R15: 0000000000000401
FS:  00007f4b91b2a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e71aff8 CR3: 0000000076ab7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 queue_work_on+0x11d/0x1d0 kernel/workqueue.c:1548
 queue_work include/linux/workqueue.h:512 [inline]
 hci_send_cmd+0xb0/0x170 net/bluetooth/hci_core.c:3055
 hci_acl_create_connection+0x3c9/0x5a0 net/bluetooth/hci_conn.c:-1
 hci_connect_acl+0x21c/0x3a0 net/bluetooth/hci_conn.c:1610
 l2cap_chan_connect+0x625/0xe00 net/bluetooth/l2cap_core.c:8126
 bt_6lowpan_connect net/bluetooth/6lowpan.c:899 [inline]
 lowpan_control_write+0x420/0x690 net/bluetooth/6lowpan.c:1134
 full_proxy_write+0x109/0x1c0 fs/debugfs/file.c:244
 vfs_write+0x2c4/0x960 fs/read_write.c:582
 ksys_write+0x143/0x240 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4b90d8e9a9
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:00007f4b91b2a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4b90fb5fa0 RCX: 00007f4b90d8e9a9
RDX: 000000000000001b RSI: 0000200000003080 RDI: 0000000000000005
RBP: 00007f4b90e10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4b90fb5fa0 R15: 00007ffefe98faf8
 </TASK>