INFO: task kworker/u10:5:6937 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/u10:5   state:D stack:0     pid:6937  tgid:6937  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:
3 locks held by ksoftirqd/0/16:
2 locks held by kworker/1:1/35:
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
2 locks held by kworker/0:2/918:
1 lock held by klogd/2990:
2 locks held by getty/3135:
 #0: ffffaf801d1e70a0 (&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
4 locks held by kworker/u8:2/5378:
 #0: ffffaf80126a1948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f80048d7bd0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff897eaa30 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xe2/0xa16 net/core/net_namespace.c:606
 #3: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by kworker/u10:2/5863:
2 locks held by kworker/0:3/6181:
3 locks held by kworker/u10:5/6937:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8001d07bd0 ((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
1 lock held by syz-executor/7016:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by kworker/u10:6/7449:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8001687bd0 ((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
4 locks held by kworker/0:6/7677:
3 locks held by kworker/u10:7/7809:
1 lock held by syz.1.1450/7833:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by kworker/u10:8/7865:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8004057bd0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff898011c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
2 locks held by kworker/u10:9/7986:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8004777bd0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
3 locks held by syz-executor/8236:
2 locks held by modprobe/8330:
2 locks held by kworker/u10:3/8336:

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

NMI backtrace for cpu 1
CPU: 1 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6444 Comm: kworker/u10:4 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_unbound nsim_dev_trap_report_work
epc : nf_hook include/linux/netfilter.h:263 [inline]
epc : NF_HOOK include/linux/netfilter.h:312 [inline]
epc : ip_local_deliver+0x2a4/0x568 net/ipv4/ip_input.c:254
 ra : nf_hook include/linux/netfilter.h:263 [inline]
 ra : NF_HOOK include/linux/netfilter.h:312 [inline]
 ra : ip_local_deliver+0x2a4/0x568 net/ipv4/ip_input.c:254
epc : ffffffff855bdb0c ra : ffffffff855bdb0c sp : ffff8f8000007730
 gp : ffffffff89c1d3c0 tp : ffffaf801c13cec0 t0 : f38912d922349e9c
 t1 : ffffaf801c13dab8 t2 : 0000000000000005 s0 : ffff8f8000007840
 s1 : ffffaf802a735000 a0 : 0000000000000005 a1 : 0000000000000000
 a2 : 0000000000f00000 a3 : ffffffff855bdb0c a4 : 0000000000000000
 a5 : ffffaf801c13cec0 a6 : 0000000000f00000 a7 : ffffffffc28452b3
 s2 : ffffaf801ef11d40 s3 : 1ffff1f000000ee8 s4 : ffff8f80000077e0
 s5 : ffffaf8030e2c000 s6 : 0000000000000001 s7 : ffffaf802feeba00
 s8 : ffffaf806ed6b290 s9 : ffffffff86674268 s10: 0000000000000003
 s11: 0000000000000040 t3 : ffffaf801c13d9f0 t4 : 1ffff5f003827b3d
 t5 : 1ffff5f003827b5b t6 : 000000000000000a
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff855bdb0c>] nf_hook include/linux/netfilter.h:263 [inline]
[<ffffffff855bdb0c>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff855bdb0c>] ip_local_deliver+0x2a4/0x568 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