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workqueue: cannot queue hci_conn_timeout on wq hci0
WARNING: kernel/workqueue.c:2298 at __queue_work+0xfd4/0x136c kernel/workqueue.c:2296, CPU#0: kworker/0:3/4341
Modules linked in:
CPU: 0 UID: 0 PID: 4341 Comm: kworker/0:3 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: events l2cap_chan_timeout
pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __queue_work+0xfd4/0x136c kernel/workqueue.c:2296
lr : __queue_work+0xfd4/0x136c kernel/workqueue.c:2296
sp : ffff800098f87870
x29: ffff800098f878b0 x28: ffff800098f87c40 x27: ffff0000d931ba88
x26: ffff0000f0613000 x25: 0000000000000008 x24: ffff0000f06131c0
x23: dfff800000000000 x22: ffff0000c50e3a2c x21: ffff800089f18000
x20: ffff0000d4b0ca58 x19: ffff0000d4b0ca40 x18: 1fffe00035c1ea20
x17: ffff8000888eb000 x16: ffff80008899dba0 x15: ffff0001ae0f510c
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000ff0100 x9 : cb94159a6e40e900
x8 : cb94159a6e40e900 x7 : ffff80008047caa0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000802f1374
x2 : 0000000100000000 x1 : ffff0000c50e3a00 x0 : 0000000000000000
Call trace:
 __queue_work+0xfd4/0x136c kernel/workqueue.c:2296 (P)
 __queue_delayed_work+0xf4/0x2b4 kernel/workqueue.c:2560
 queue_delayed_work_on+0xcc/0x140 kernel/workqueue.c:2612
 queue_delayed_work include/linux/workqueue.h:713 [inline]
 hci_conn_drop+0x174/0x29c include/net/bluetooth/hci_core.h:1712
 l2cap_chan_del+0x220/0x48c net/bluetooth/l2cap_core.c:672
 l2cap_chan_close+0x3e4/0x5ac net/bluetooth/l2cap_core.c:-1
 l2cap_chan_timeout+0x120/0x29c net/bluetooth/l2cap_core.c:431
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x79c/0x1098 kernel/workqueue.c:3397
 worker_thread+0x754/0xba0 kernel/workqueue.c:3478
 kthread+0x2f8/0x3c8 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
irq event stamp: 449086
hardirqs last  enabled at (449085): [<ffff800080352618>] __cancel_work+0xf4/0x1a4 kernel/workqueue.c:4466
hardirqs last disabled at (449086): [<ffff80008034e698>] queue_delayed_work_on+0x54/0x140 kernel/workqueue.c:2608
softirqs last  enabled at (449080): [<ffff800084aa9cf8>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (449080): [<ffff800084aa9cf8>] release_sock+0x150/0x228 net/core/sock.c:3825
softirqs last disabled at (449078): [<ffff800084aa9bdc>] spin_lock_bh include/linux/spinlock.h:348 [inline]
softirqs last disabled at (449078): [<ffff800084aa9bdc>] release_sock+0x34/0x228 net/core/sock.c:3812
---[ end trace 0000000000000000 ]---