INFO: task kworker/u9:7:6385 blocked for more than 430 seconds.
      Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:7    state:D stack:0     pid:6385  tgid:6385  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff8624d1e2>] context_switch kernel/sched/core.c:5377 [inline]
[<ffffffff8624d1e2>] __schedule+0xe4c/0x3d70 kernel/sched/core.c:6764
[<ffffffff862501ca>] __schedule_loop kernel/sched/core.c:6841 [inline]
[<ffffffff862501ca>] schedule+0xc4/0x324 kernel/sched/core.c:6856
[<ffffffff86264482>] schedule_timeout+0x1c6/0x28a kernel/time/sleep_timeout.c:75
[<ffffffff86251d06>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff86251d06>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff8625200c>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8625200c>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff8036cdca>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3809
[<ffffffff806f6c48>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805955ca>] bpf_map_free kernel/bpf/syscall.c:841 [inline]
[<ffffffff805955ca>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:867
[<ffffffff801b3668>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3236
[<ffffffff801b667a>] process_scheduled_works kernel/workqueue.c:3317 [inline]
[<ffffffff801b667a>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3398
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
2 locks held by kworker/1:0/25:
1 lock held by khungtaskd/37:
 #0: ffffffff883d8200 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x68/0x288 kernel/locking/lockdep.c:6742
1 lock held by klogd/2991:
2 locks held by getty/3141:
 #0: ffffaf801d0e70a0 (&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+0xd7c/0x129a drivers/tty/n_tty.c:2211
2 locks held by syz-executor/3168:
2 locks held by kworker/1:2/3170:
2 locks held by syz-executor/3179:
2 locks held by kworker/1:5/3870:
1 lock held by syz-executor/4140:
3 locks held by kworker/1:6/5078:
3 locks held by kworker/u9:3/5828:
2 locks held by kworker/1:3/6232:
2 locks held by kworker/1:9/6267:
2 locks held by kworker/1:11/6336:
3 locks held by kworker/u9:4/6380:
3 locks held by kworker/u9:7/6385:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8002bb7bd0 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
6 locks held by kworker/0:4/6504:
 #0: ffffaf80146c3548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8001f77bd0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffaf801ca54190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
 #2: ffffaf801ca54190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1bc/0x48de drivers/usb/core/hub.c:5851
 #3: ffffaf80161ad190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
 #3: ffffaf80161ad190 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x462 drivers/base/dd.c:1005
 #4: ffffaf80185ee160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
 #4: ffffaf80185ee160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x462 drivers/base/dd.c:1005
 #5: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by kworker/u9:8/6554:
2 locks held by kworker/1:13/6600:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80074518>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff80003206>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8005fa4c>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8005fa4c>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff8005fae0>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86206bf4>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86206eac>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff80080416>] arch_trigger_cpumask_backtrace+0x2c/0x3e arch/riscv/kernel/smp.c:348
[<ffffffff804ddfbc>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff804ddfbc>] check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
[<ffffffff804ddfbc>] watchdog+0xcf2/0x11de kernel/hung_task.c:399
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6263 Comm: kworker/1:8 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg1 wg_packet_encrypt_worker
epc : lock_release+0x5c2/0xbf4 kernel/locking/lockdep.c:5859
 ra : lockdep_recursion_finish kernel/locking/lockdep.c:469 [inline]
 ra : lock_release+0x524/0xbf4 kernel/locking/lockdep.c:5874
epc : ffffffff802ca23a ra : ffffffff802ca19c sp : ffff8f8000016ac0
 gp : ffffffff89c1d3c0 tp : ffffaf801ccd0000 t0 : d3777d93517b484d
 t1 : ffffaf801ccd0bf8 t2 : 0000000000000005 s0 : ffff8f8000016be0
 s1 : 1ffff1f000002d5c a0 : ffffffff90fcb3a8 a1 : ffffffff868423c0
 a2 : 0000000000000005 a3 : 1ffff5f00399a164 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : 00000000218dc892
 s2 : ffffffff90fcb3a0 s3 : ffffaf806ed76748 s4 : ffffffff8665e748
 s5 : 0000000000000002 s6 : ffffffff90fcb3a8 s7 : ffff8f8000016b60
 s8 : 0000000000000006 s9 : ffffaf801ccd0bf8 s10: ffffaf801ccd0000
 s11: 1ffff5f00399a165 t3 : ffffaf801ccd0b30 t4 : 1ffff5f00399a165
 t5 : 1ffff5f00399a183 t6 : 0000000000000001
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff802ca23a>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff802ca23a>] lock_release+0x5c2/0xbf4 kernel/locking/lockdep.c:5875
[<ffffffff8545935e>] rcu_lock_release include/linux/rcupdate.h:347 [inline]
[<ffffffff8545935e>] rcu_read_unlock include/linux/rcupdate.h:880 [inline]
[<ffffffff8545935e>] net_generic+0x120/0x310 include/net/netns/generic.h:48
[<ffffffff8545e538>] synproxy_pernet include/net/netfilter/nf_synproxy.h:32 [inline]
[<ffffffff8545e538>] ipv4_synproxy_hook+0xbe/0x2502 net/netfilter/nf_synproxy_core.c:643
[<ffffffff8539d320>] nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
[<ffffffff8539d320>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:626
[<ffffffff855d8114>] nf_hook include/linux/netfilter.h:269 [inline]
[<ffffffff855d8114>] NF_HOOK_COND include/linux/netfilter.h:302 [inline]
[<ffffffff855d8114>] ip_output+0x31e/0x61c net/ipv4/ip_output.c:434
[<ffffffff855d8e8c>] dst_output include/net/dst.h:459 [inline]
[<ffffffff855d8e8c>] ip_local_out+0xac/0x1a8 net/ipv4/ip_output.c:130
[<ffffffff8545ac20>] synproxy_send_tcp.isra.0+0x3de/0x5d2 net/netfilter/nf_synproxy_core.c:439
[<ffffffff8545ca44>] synproxy_send_client_synack+0x6dc/0x8be net/netfilter/nf_synproxy_core.c:484
[<ffffffff8553316c>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff8553316c>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff85533370>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff85468036>] expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
[<ffffffff85468036>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:288
[<ffffffff854c2648>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff8539d320>] nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
[<ffffffff8539d320>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:626
[<ffffffff855bdb52>] nf_hook include/linux/netfilter.h:269 [inline]
[<ffffffff855bdb52>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff855bdb52>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff855bbc06>] dst_input include/net/dst.h:469 [inline]
[<ffffffff855bbc06>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff855bdea6>] NF_HOOK include/linux/netfilter.h:314 [inline]
[<ffffffff855bdea6>] NF_HOOK include/linux/netfilter.h:308 [inline]
[<ffffffff855bdea6>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff84f9d57c>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5828
[<ffffffff84f9d7fc>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:5941
[<ffffffff84f9e9fc>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6289
[<ffffffff84fa3392>] __napi_poll.constprop.0+0xaa/0x4b8 net/core/dev.c:7106
[<ffffffff84fa41b2>] napi_poll net/core/dev.c:7175 [inline]
[<ffffffff84fa41b2>] net_rx_action+0xa12/0xf10 net/core/dev.c:7297
[<ffffffff80156a7a>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:561
[<ffffffff80157bc6>] __do_softirq kernel/softirq.c:595 [inline]
[<ffffffff80157bc6>] invoke_softirq kernel/softirq.c:435 [inline]
[<ffffffff80157bc6>] __irq_exit_rcu+0x18c/0x550 kernel/softirq.c:662
[<ffffffff801595cc>] irq_exit_rcu+0x10/0xf8 kernel/softirq.c:678
[<ffffffff86242304>] handle_riscv_irq+0x40/0x4c arch/riscv/kernel/traps.c:378
[<ffffffff862688ca>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:356