------------[ cut here ]------------ workqueue: cannot queue hci_conn_timeout on wq hci2 WARNING: CPU: 0 PID: 979 at kernel/workqueue.c:2258 __queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 979 Comm: kworker/0:2 Not tainted 6.16.0-rc4-syzkaller-00991-g6b9fd8857b9f #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events l2cap_chan_timeout RIP: 0010:__queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Code: 42 80 3c 20 00 74 08 4c 89 ef e8 79 0d 99 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 c0 e0 89 8b 4c 89 fa e8 1f 34 f9 ff 90 <0f> 0b 90 90 e9 f1 f4 ff ff e8 e0 8c 35 00 90 0f 0b 90 e9 dd fc ff RSP: 0018:ffffc90003d0f7a8 EFLAGS: 00010046 RAX: 21a466e3819c4400 RBX: 0000000000000020 RCX: ffff888025d98000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 1ffff1100efedb38 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa9fc R12: dffffc0000000000 R13: ffff88804d35c960 R14: ffff88801a494008 R15: ffff888077f6d978 FS: 0000000000000000(0000) GS:ffff888125c16000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c25c0ba CR3: 000000007a6da000 CR4: 00000000003526f0 Call Trace: queue_delayed_work_on+0x18b/0x280 kernel/workqueue.c:2561 l2cap_chan_del+0x285/0x5e0 net/bluetooth/l2cap_core.c:671 l2cap_chan_close+0x597/0x980 net/bluetooth/l2cap_core.c:-1 l2cap_chan_timeout+0x158/0x390 net/bluetooth/l2cap_core.c:431 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245