------------[ cut here ]------------ workqueue: cannot queue hci_conn_timeout on wq hci1 WARNING: CPU: 1 PID: 24 at kernel/workqueue.c:2258 __queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted 6.15.0-rc6-syzkaller #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 d8 96 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 c0 c7 69 8b 4c 89 fa e8 9f 40 f9 ff 90 <0f> 0b 90 90 e9 f1 f4 ff ff e8 a0 e3 34 00 90 0f 0b 90 e9 dd fc ff RSP: 0018:ffffc900001e7848 EFLAGS: 00010046 RAX: 9c030390d7311e00 RBX: 0000000000000020 RCX: ffff88801c6f8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 1ffff11028961f38 R08: ffff8880b8923e93 R09: 1ffff110171247d2 R10: dffffc0000000000 R11: ffffed10171247d3 R12: dffffc0000000000 R13: ffff888020b1c960 R14: ffff88801a08c408 R15: ffff888144b0f978 FS: 0000000000000000(0000) GS:ffff8881261c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5d14ff3454 CR3: 00000000617d9000 CR4: 0000000000350ef0 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/0x17a0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4e/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245