INFO: task kworker/u10:5:5237 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:5   state:D stack:0     pid:5237  tgid:5237  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff86388df4>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86388df4>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8638bf2a>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8638bf2a>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863a0702>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff8638dab2>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff8638dab2>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff8638dce2>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8638dce2>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80373490>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff80713e5e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805a4576>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805a4576>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bb13c>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801be24c>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801be24c>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff883dc3a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
1 lock held by klogd/2988:
2 locks held by kworker/0:2/3010:
2 locks held by getty/3137:
 #0: ffffaf801c0b00a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
2 locks held by syz-executor/3165:
3 locks held by syz-executor/3171:
2 locks held by kworker/0:1/3209:
2 locks held by kworker/u10:3/3406:
2 locks held by kworker/0:7/4020:
2 locks held by kworker/0:4/4428:
3 locks held by kworker/u10:1/4738:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f80051d7b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec5c0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
2 locks held by kworker/0:3/4863:
3 locks held by kworker/u10:5/5237:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8004a97b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec5c0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
2 locks held by kworker/0:9/5261:
2 locks held by kworker/0:10/5267:
2 locks held by kworker/0:11/5284:
3 locks held by kworker/u10:7/5321:
4 locks held by syz.0.594/5435:

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80078a80>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000327a>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff80061012>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff80061012>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff800610a6>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86340a50>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86340d08>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff800847ac>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff804ea4a8>] trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
[<ffffffff804ea4a8>] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
[<ffffffff804ea4a8>] watchdog+0xcea/0x1618 kernel/hung_task.c:470
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 4020 Comm: kworker/0:7 Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
epc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
epc : _raw_spin_unlock_irqrestore+0x36/0xd4 kernel/locking/spinlock.c:194
 ra : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 ra : _raw_spin_unlock_irqrestore+0x86/0xd4 kernel/locking/spinlock.c:194
epc : ffffffff863a221a ra : ffffffff863a226a sp : ffff8f80000065c0
 gp : ffffffff89c4eee0 tp : ffffaf8014f80000 t0 : ffff8f8000006960
 t1 : fffff5ef0dda88f9 t2 : fffffffff2f20000 s0 : ffff8f80000065e0
 s1 : 0000000000000002 a0 : 0000000000000000 a1 : ffffffff87d48a70
 a2 : 0000000000000003 a3 : 0000000000000302 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffffaf806ed447cb
 s2 : ffffaf806ed447c8 s3 : ffffaf806ed447b0 s4 : ffffaf806ed447b0
 s5 : 0000000000000000 s6 : 1ffff5f00426562a s7 : ffffffff90fff2c0
 s8 : 1ffff5f00dda88f8 s9 : ffffaf802132b150 s10: ffffaf806ed447c0
 s11: ffffffff86674600 t3 : 2271945b00000000 t4 : fffff5ef0dda88f9
 t5 : fffff5ef0dda88fa t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff863a221a>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff863a221a>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
[<ffffffff863a221a>] _raw_spin_unlock_irqrestore+0x36/0xd4 kernel/locking/spinlock.c:194
[<ffffffff8506c5d2>] spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
[<ffffffff8506c5d2>] backlog_unlock_irq_restore net/core/dev.c:252 [inline]
[<ffffffff8506c5d2>] enqueue_to_backlog+0x31e/0xea8 net/core/dev.c:5180
[<ffffffff8506d2ca>] netif_rx_internal+0x16e/0x7ce net/core/dev.c:5491
[<ffffffff8506da60>] __netif_rx+0xda/0x104 net/core/dev.c:5511
[<ffffffff8320d4f2>] loopback_xmit+0x24c/0x6be drivers/net/loopback.c:90
[<ffffffff8507a2ca>] __netdev_start_xmit include/linux/netdevice.h:5215 [inline]
[<ffffffff8507a2ca>] netdev_start_xmit include/linux/netdevice.h:5224 [inline]
[<ffffffff8507a2ca>] xmit_one net/core/dev.c:3830 [inline]
[<ffffffff8507a2ca>] dev_hard_start_xmit+0x21c/0xad0 net/core/dev.c:3846
[<ffffffff8507b820>] __dev_queue_xmit+0x942/0x4a02 net/core/dev.c:4713
[<ffffffff856e1b02>] dev_queue_xmit include/linux/netdevice.h:3355 [inline]
[<ffffffff856e1b02>] neigh_hh_output include/net/neighbour.h:523 [inline]
[<ffffffff856e1b02>] neigh_output include/net/neighbour.h:537 [inline]
[<ffffffff856e1b02>] ip_finish_output2+0xcfa/0x2772 net/ipv4/ip_output.c:235
[<ffffffff856e38f2>] __ip_finish_output net/ipv4/ip_output.c:313 [inline]
[<ffffffff856e38f2>] __ip_finish_output+0x378/0x60c net/ipv4/ip_output.c:295
[<ffffffff856e3bc2>] ip_finish_output+0x3c/0x350 net/ipv4/ip_output.c:323
[<ffffffff856e4064>] NF_HOOK_COND include/linux/netfilter.h:306 [inline]
[<ffffffff856e4064>] ip_output+0x18e/0x61c net/ipv4/ip_output.c:433
[<ffffffff856e5150>] dst_output include/net/dst.h:459 [inline]
[<ffffffff856e5150>] ip_local_out+0xac/0x1a8 net/ipv4/ip_output.c:129
[<ffffffff85561c58>] synproxy_send_tcp.isra.0+0x3de/0x5d2 net/netfilter/nf_synproxy_core.c:439
[<ffffffff85563a84>] synproxy_send_client_synack+0x6dc/0x8be net/netfilter/nf_synproxy_core.c:484
[<ffffffff8563d3be>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff8563d3be>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff8563d5c2>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff8556eeea>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff8556eeea>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff855cb0a8>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff854a4250>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff854a4250>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff856c916e>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff856c916e>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff856c916e>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff856c7224>] dst_input include/net/dst.h:469 [inline]
[<ffffffff856c7224>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff856c94c2>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff85087e84>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff85088104>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff85089304>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff8508dc9e>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff8508eb82>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff8508eb82>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015c6d2>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff8015d81e>] __do_softirq kernel/softirq.c:613 [inline]
[<ffffffff8015d81e>] invoke_softirq kernel/softirq.c:453 [inline]
[<ffffffff8015d81e>] __irq_exit_rcu+0x18c/0x550 kernel/softirq.c:680
[<ffffffff8015f224>] irq_exit_rcu+0x10/0xf8 kernel/softirq.c:696
[<ffffffff8637dae0>] handle_riscv_irq+0x40/0x4c arch/riscv/kernel/traps.c:388
[<ffffffff863a6b4a>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:360