INFO: task kworker/u10:3:65 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:3   state:D stack:0     pid:65    tgid:65    ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863454fa>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff86332aee>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff86332aee>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff86332d1e>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff86332d1e>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80375b84>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff8074bd1e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805d641a>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805d641a>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bd390>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801c04a0>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801c04a0>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
INFO: task kworker/u10:5:1092 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:5   state:D stack:0     pid:1092  tgid:1092  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863318e8>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6935
[<ffffffff8633538c>] __mutex_lock_common kernel/locking/mutex.c:679 [inline]
[<ffffffff8633538c>] __mutex_lock+0x9be/0x1292 kernel/locking/mutex.c:747
[<ffffffff86335c74>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:799
[<ffffffff803758fe>] rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
[<ffffffff8074bd1e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805d641a>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805d641a>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bd390>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801c04a0>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801c04a0>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
2 locks held by kworker/0:1/11:
1 lock held by khungtaskd/35:
 #0: ffffffff883dc420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
5 locks held by kworker/u10:2/41:
3 locks held by kworker/u10:3/65:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f80004f7b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
5 locks held by kworker/0:2/926:
3 locks held by kworker/u10:5/1092:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8003687b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
1 lock held by syslogd/3003:
1 lock held by klogd/3007:
2 locks held by getty/3155:
 #0: ffffaf8014afb0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
1 lock held by syz-executor/3183:
2 locks held by kworker/0:0/3767:
2 locks held by kworker/0:7/4485:
3 locks held by syz-executor/4855:
3 locks held by kworker/u10:0/4874:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8006cc7b70 ((work_completion)(&copy->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
2 locks held by kworker/0:4/5411:
3 locks held by kworker/u10:7/5526:
2 locks held by kworker/0:5/5536:
3 locks held by kworker/0:6/5542:
2 locks held by kworker/0:11/5588:
2 locks held by kworker/0:13/5635:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 35 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80078bbe>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000327a>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8006103e>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8006103e>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff800610d2>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff862e5a74>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff862e5d2c>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff800863dc>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff804edb80>] trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
[<ffffffff804edb80>] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
[<ffffffff804edb80>] watchdog+0xcf2/0x11de kernel/hung_task.c:470
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] 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: 15 Comm: ksoftirqd/0 Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
epc : __kernel_text_address+0x0/0x40 kernel/extable.c:78
 ra : walk_stackframe+0xc4/0x44e arch/riscv/kernel/stacktrace.c:58
epc : ffffffff801d7f44 ra : ffffffff80078472 sp : ffff8f80001069b0
 gp : ffffffff89c83ca0 tp : ffffaf8012ae3480 t0 : ffff8f8000106d00
 t1 : fffffffef2201784 t2 : fffffffff2f20000 s0 : ffff8f8000106a30
 s1 : ffff8f8000106fe0 a0 : ffffffff856d249e a1 : ffffffff856d249e
 a2 : 0000000000f00000 a3 : ffffffff80078468 a4 : 0000000000000000
 a5 : ffffaf8012ae3480 a6 : 0000000000f00000 a7 : ffffffff9100bc23
 s2 : ffff8f8000106e70 s3 : 0000000000000009 s4 : 0000000000000000
 s5 : dfffffff00000000 s6 : ffffffff856d249e s7 : ffff8f8000106fe0
 s8 : dfffffff00000000 s9 : 0000000000007fff s10: ffffffff8634b694
 s11: ffffaf802c385014 t3 : 627a5db700000000 t4 : fffffffef2201784
 t5 : fffffffef2201785 t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff801d7f44>] core_kernel_text kernel/extable.c:71 [inline]
[<ffffffff801d7f44>] __kernel_text_address+0x0/0x40 kernel/extable.c:99
[<ffffffff86323596>] arch_stack_walk+0x1c/0x26 arch/riscv/kernel/stacktrace.c:165
[<ffffffff803d08a4>] stack_trace_save+0xa0/0xd2 kernel/stacktrace.c:122
[<ffffffff80af29a6>] kasan_save_stack+0x3e/0x6a mm/kasan/common.c:47
[<ffffffff80af29fc>] kasan_save_track+0x16/0x28 mm/kasan/common.c:68
[<ffffffff80af5958>] kasan_save_free_info+0x40/0x5a mm/kasan/generic.c:576
[<ffffffff80af2d14>] poison_slab_object mm/kasan/common.c:247 [inline]
[<ffffffff80af2d14>] __kasan_slab_free+0x4e/0x68 mm/kasan/common.c:264
[<ffffffff80a52374>] kasan_slab_free include/linux/kasan.h:233 [inline]
[<ffffffff80a52374>] slab_free_hook mm/slub.c:2381 [inline]
[<ffffffff80a52374>] slab_free mm/slub.c:4643 [inline]
[<ffffffff80a52374>] kmem_cache_free+0x366/0x604 mm/slub.c:4745
[<ffffffff850797f6>] kfree_skbmem+0x1b4/0x1ee net/core/skbuff.c:1110
[<ffffffff8509d45c>] __kfree_skb net/core/skbuff.c:1167 [inline]
[<ffffffff8509d45c>] consume_skb net/core/skbuff.c:1398 [inline]
[<ffffffff8509d45c>] consume_skb+0xd8/0xfa net/core/skbuff.c:1392
[<ffffffff856d249e>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:60 [inline]
[<ffffffff856d249e>] nft_synproxy_do_eval+0x8b6/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff856d2698>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff85603fc2>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff85603fc2>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff85660180>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff855393e0>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff855393e0>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff8575e242>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff8575e242>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff8575e242>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff8575c2f8>] dst_input include/net/dst.h:469 [inline]
[<ffffffff8575c2f8>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff8575e596>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff8575e596>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff8575e596>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff8511db78>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff8511ddf8>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff8511eff8>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff85123992>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff85124876>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff85124876>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015e7ae>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff8015f6f8>] run_ksoftirqd kernel/softirq.c:968 [inline]
[<ffffffff8015f6f8>] run_ksoftirqd+0xce/0x144 kernel/softirq.c:960
[<ffffffff801f41fc>] smpboot_thread_fn+0x420/0xc80 kernel/smpboot.c:164
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327