rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9576/2:b..l
	(detected by 0, t=10502 jiffies, g=263833, q=62293 ncpus=2)
task:syz-executor.2  state:R  running task     stack:0     pid:9576  ppid:1      flags:0x00000009
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5296 [inline]
 __schedule+0xfc8/0x1d64 kernel/sched/core.c:6609
 preempt_schedule_irq+0x80/0x188 kernel/sched/core.c:6921
 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline]
 __el1_irq arch/arm64/kernel/entry-common.c:474 [inline]
 el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:486
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:587
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:182 [inline]
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:202 [inline]
 lock_acquire+0x324/0x8c0 kernel/locking/lockdep.c:5671
 rcu_lock_acquire+0x40/0x4c include/linux/rcupdate.h:325
 rcu_read_lock include/linux/rcupdate.h:764 [inline]
 xa_find+0x154/0x388 lib/xarray.c:2019
 devlinks_xa_find_get+0xdc/0x2a0 net/core/devlink.c:306
 devlinks_xa_find_get_first net/core/devlink.c:334 [inline]
 devlink_pernet_pre_exit+0xc8/0x2fc net/core/devlink.c:12997
 ops_pre_exit_list net/core/net_namespace.c:159 [inline]
 setup_net+0x68c/0xaac net/core/net_namespace.c:355
 copy_net_ns+0x3d0/0x640 net/core/net_namespace.c:490
 create_new_namespaces+0x344/0x614 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x104/0x154 kernel/nsproxy.c:228
 ksys_unshare+0x45c/0x874 kernel/fork.c:3202
 __do_sys_unshare kernel/fork.c:3273 [inline]
 __se_sys_unshare kernel/fork.c:3271 [inline]
 __arm64_sys_unshare+0x3c/0x50 kernel/fork.c:3271
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591