=============================
WARNING: suspicious RCU usage
5.9.0-rc6-syzkaller #0 Not tainted
-----------------------------
include/linux/radix-tree.h:176 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
2 locks held by kworker/u4:2/44:
 #0: ffff8881f4ae0938 ((wq_completion)qrtr_ns_handler){+.+.}-{0:0}, at: process_one_work+0x88e/0x1680
 #1: ffffc900002c7d98 ((work_completion)(&qrtr_ns.work)){+.+.}-{0:0}, at: process_one_work+0x8c2/0x1680

stack backtrace:
CPU: 1 PID: 44 Comm: kworker/u4:2 Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: qrtr_ns_handler qrtr_ns_worker
Call Trace:
 dump_stack+0x191/0x1f1
 ctrl_cmd_new_lookup+0x6da/0x7d0
 qrtr_ns_worker+0x7e7/0x1680
 process_one_work+0x9ad/0x1680
 worker_thread+0x676/0x1170
 kthread+0x3a6/0x490
 ret_from_fork+0x1f/0x30
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