INFO: task kworker/u10:3:4559 blocked for more than 430 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00002-gcfb10de18538 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:3   state:D stack:0     pid:4559  tgid:4559  ppid:2      flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff85fe3a64>] context_switch kernel/sched/core.c:5315 [inline]
[<ffffffff85fe3a64>] __schedule+0xd5a/0x3886 kernel/sched/core.c:6675
[<ffffffff85fe6654>] __schedule_loop kernel/sched/core.c:6752 [inline]
[<ffffffff85fe6654>] schedule+0xc4/0x324 kernel/sched/core.c:6767
[<ffffffff85ff9402>] schedule_timeout+0x1e2/0x296 kernel/time/timer.c:2591
[<ffffffff85fe8032>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff85fe8032>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff85fe8338>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff85fe8338>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff802d83a6>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:4629
[<ffffffff8063b324>] dev_map_free+0x11c/0x6b8 kernel/bpf/devmap.c:214
[<ffffffff804e544c>] bpf_map_free kernel/bpf/syscall.c:744 [inline]
[<ffffffff804e544c>] bpf_map_free_deferred+0x21e/0x46a kernel/bpf/syscall.c:768
[<ffffffff80135b62>] process_one_work+0x956/0x1dae kernel/workqueue.c:3229
[<ffffffff80137578>] process_scheduled_works kernel/workqueue.c:3310 [inline]
[<ffffffff80137578>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3391
[<ffffffff80154e04>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbce>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326

Showing all locks held in the system:
5 locks held by kworker/0:0/8:
1 lock held by kworker/R-mm_pe/13:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by khungtaskd/36:
 #0: ffffffff87fcc100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
2 locks held by kworker/0:2/929:
2 locks held by getty/3148:
 #0: ff6000001afcd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff2000000008b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
1 lock held by sshd/3173:
1 lock held by kworker/R-wg-cr/3353:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/3356:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/3364:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
2 locks held by kworker/R-wg-cr/3379:
1 lock held by kworker/R-wg-cr/3394:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/3409:
2 locks held by kworker/0:1/3781:
2 locks held by kworker/0:3/3813:
3 locks held by kworker/1:3/3814:
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:593 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1804 [inline]
 #0: ff6000006ec4ed18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x280/0x3886 kernel/sched/core.c:6575
 #1: ff6000006ec3a648 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x23e/0x732 kernel/sched/psi.c:989
 #2: ff6000006ec3c3d8 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x7e/0x1fc kernel/time/timer.c:1051
2 locks held by kworker/0:4/3871:
1 lock held by syz.0.55/4052:
 #0: ff600000154ce548 (mapping.invalidate_lock#2){+.+.}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:860 [inline]
 #0: ff600000154ce548 (mapping.invalidate_lock#2){+.+.}-{3:3}, at: blkdev_fallocate+0x1ac/0x30a block/fops.c:808
1 lock held by kworker/R-wg-cr/4183:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/4187:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
1 lock held by kworker/R-wg-cr/4190:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool kernel/workqueue.c:2727 [inline]
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3526
2 locks held by kworker/0:5/4538:
3 locks held by kworker/u10:3/4559:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff2000000bf37c90 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff87fdc6c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4561
3 locks held by kworker/0:6/4588:
1 lock held by syz.0.130/4596:
 #0: ffffffff87fdc6c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4561
2 locks held by kworker/0:7/4605:
7 locks held by syz-executor/4617:
 #0: ff6000001d132420 (sb_writers#7){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1716 [inline]
 #0: ff6000001d132420 (sb_writers#7){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1852 [inline]
 #0: ff6000001d132420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
 #0: ff6000001d132420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x728/0x9b4 fs/read_write.c:679
 #1: ff60000036d51088 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x23a/0x460 fs/kernfs/file.c:325
 #2: ff6000001af81b48 (kn->active#4){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x258/0x460 fs/kernfs/file.c:326
 #3: ffffffff88c129e8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xf0/0x48c drivers/net/netdevsim/bus.c:216
 #4: ff6000002dc3e0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #4: ff6000002dc3e0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
 #4: ff6000002dc3e0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x9c/0x572 drivers/base/dd.c:1293
 #5: ff6000002dc3f250 (&devlink->lock_key#3){+.+.}-{3:3}, at: devl_lock+0x22/0x2c net/devlink/core.c:276
 #6: ffffffff87fdc6c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4561
3 locks held by kworker/u10:6/4629:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff2000000bdf7c90 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff87fdc6c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4561
2 locks held by kworker/0:8/4642:
1 lock held by kworker/0:11/4999:
 #0: ffffffff87e86d68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_attach_to_pool+0x36/0x3c4 kernel/workqueue.c:2669
2 locks held by syz.1.188/5055:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 36 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00002-gcfb10de18538 #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80010a14>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85f7c3bc>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85fd796a>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff85fd796a>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:120
[<ffffffff85fd79fa>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff85f3fa9e>] nmi_cpu_backtrace+0x39c/0x39e lib/nmi_backtrace.c:113
[<ffffffff85f3fd56>] nmi_trigger_cpumask_backtrace+0x2b6/0x456 lib/nmi_backtrace.c:62
[<ffffffff80019964>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:347
[<ffffffff80432c2c>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff80432c2c>] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
[<ffffffff80432c2c>] watchdog+0xcfa/0x1178 kernel/hung_task.c:379
[<ffffffff80154e04>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbce>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc1-syzkaller-00002-gcfb10de18538 #0
Hardware name: riscv-virtio,qemu (DT)
epc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
epc : _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
 ra : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 ra : _raw_spin_unlock_irqrestore+0x86/0xd6 kernel/locking/spinlock.c:194
epc : ffffffff85ffb79a ra : ffffffff85ffb7ea sp : ff200000001167b0
 gp : ffffffff897bea80 tp : ff600000126f4ec0 t0 : ff600000126f59e0
 t1 : ffebffff050c9cbd t2 : 0000000000000177 s0 : ff200000001167d0
 s1 : 0000000000000002 a0 : 0000000000000000 a1 : ffffffff8643e620
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ff6000002864e5eb
 s2 : ff6000002864e5e8 s3 : 1fe4000000022cfc s4 : ff6000002864e638
 s5 : 1fec0000050c9cc7 s6 : 0000000200000022 s7 : 0000000000000001
 s8 : ff60000030193d80 s9 : 0000000000000000 s10: 0000000000000002
 s11: ffffffff80000000 t3 : 1fec0000024deb3b t4 : ffebffff050c9cbd
 t5 : ffebffff050c9cbe t6 : 1fec0000024deb4f
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff85ffb79a>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff85ffb79a>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
[<ffffffff85ffb79a>] _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
[<ffffffff8171b582>] spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
[<ffffffff8171b582>] ref_tracker_alloc+0x2d8/0x542 lib/ref_tracker.c:214
[<ffffffff84d3c128>] __netdev_tracker_alloc include/linux/netdevice.h:4050 [inline]
[<ffffffff84d3c128>] netdev_hold include/linux/netdevice.h:4079 [inline]
[<ffffffff84d3c128>] dst_init+0xca/0x506 net/core/dst.c:52
[<ffffffff84d3c612>] dst_alloc+0xae/0x174 net/core/dst.c:93
[<ffffffff85308ac2>] rt_dst_alloc+0x3a/0x340 net/ipv4/route.c:1612
[<ffffffff85320e32>] __mkroute_output net/ipv4/route.c:2573 [inline]
[<ffffffff85320e32>] ip_route_output_key_hash_rcu+0x822/0x2748 net/ipv4/route.c:2795
[<ffffffff85322eb0>] ip_route_output_key_hash+0x158/0x31c net/ipv4/route.c:2624
[<ffffffff85323a5e>] __ip_route_output_key include/net/route.h:141 [inline]
[<ffffffff85323a5e>] ip_route_output_flow+0x2a/0x142 net/ipv4/route.c:2852
[<ffffffff855bcefe>] ip_route_output_key include/net/route.h:151 [inline]
[<ffffffff855bcefe>] ip_route_me_harder+0x4e4/0x1158 net/ipv4/netfilter.c:53
[<ffffffff851cf000>] synproxy_send_tcp.isra.0+0x2be/0x5d2 net/netfilter/nf_synproxy_core.c:431
[<ffffffff851d10a0>] synproxy_send_client_synack+0x940/0xc9a net/netfilter/nf_synproxy_core.c:484
[<ffffffff852a715c>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff852a715c>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff852a7360>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff851dd7b2>] expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
[<ffffffff851dd7b2>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:288
[<ffffffff8523728c>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff85112720>] nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
[<ffffffff85112720>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:626
[<ffffffff8533037a>] nf_hook include/linux/netfilter.h:269 [inline]
[<ffffffff8533037a>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff8533037a>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff8532ee22>] dst_input include/net/dst.h:460 [inline]
[<ffffffff8532ee22>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:449
[<ffffffff853306ce>] NF_HOOK include/linux/netfilter.h:314 [inline]
[<ffffffff853306ce>] NF_HOOK include/linux/netfilter.h:308 [inline]
[<ffffffff853306ce>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:569
[<ffffffff84d21a44>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5662
[<ffffffff84d21cc4>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:5775
[<ffffffff84d22d48>] process_backlog+0x4fc/0x1cbc net/core/dev.c:6107
[<ffffffff84d275fa>] __napi_poll.constprop.0+0xaa/0x4b8 net/core/dev.c:6771
[<ffffffff84d2841a>] napi_poll net/core/dev.c:6840 [inline]
[<ffffffff84d2841a>] net_rx_action+0xa12/0xf10 net/core/dev.c:6962
[<ffffffff800e0faa>] handle_softirqs+0x4a6/0x10de kernel/softirq.c:554
[<ffffffff800e1cb0>] run_ksoftirqd kernel/softirq.c:927 [inline]
[<ffffffff800e1cb0>] run_ksoftirqd+0xce/0x144 kernel/softirq.c:919
[<ffffffff8016af06>] smpboot_thread_fn+0x654/0xb98 kernel/smpboot.c:164
[<ffffffff80154e04>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbce>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326