INFO: task kworker/u10:3:3587 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:3587  tgid:3587  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:
2 locks held by kworker/0:1/9:
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
1 lock held by klogd/2998:
2 locks held by getty/3165:
 #0: ff600000181720a0 (&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
3 locks held by kworker/u10:3/3587:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff2000000c737c90 ((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/1:3/3826:
2 locks held by kworker/0:2/4926:
2 locks held by kworker/0:3/5056:
3 locks held by kworker/u10:0/5663:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff200000036c7c90 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
2 locks held by kworker/0:0/5813:
1 lock held by syz-executor/5938:
 #0: ffffffff87fdc6c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4561
2 locks held by kworker/u10:5/6083:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000003267c90 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
3 locks held by kworker/0:4/6140:
2 locks held by kworker/0:6/6428:
2 locks held by kworker/0:7/6437:
3 locks held by kworker/0:8/6467:
2 locks held by kworker/0:9/6482:
2 locks held by kworker/0:11/6508:
2 locks held by kworker/0:12/6528:
2 locks held by kworker/0:13/6534:
2 locks held by syz-executor/6592:
 #0: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff893adde8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xdbe net/core/rtnetlink.c:6643
 #1: ffffffff87fdc7f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x266/0x384 kernel/rcu/tree_exp.h:297

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

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: 4926 Comm: kworker/0:2 Not tainted 6.12.0-rc1-syzkaller-00002-gcfb10de18538 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
epc : fp_is_valid arch/riscv/kernel/stacktrace.c:26 [inline]
epc : walk_stackframe+0x114/0x452 arch/riscv/kernel/stacktrace.c:60
 ra : fp_is_valid arch/riscv/kernel/stacktrace.c:26 [inline]
 ra : walk_stackframe+0x114/0x452 arch/riscv/kernel/stacktrace.c:60
epc : ffffffff800104a8 ra : ffffffff800104a8 sp : ff20000000006a40
 gp : ffffffff897bea80 tp : ff60000017ca4ec0 t0 : ff20000000006d90
 t1 : ff60000017ca5a80 t2 : 000000000000001b s0 : ff20000000006ac0
 s1 : ff20000000006b90 a0 : 0000000000000006 a1 : ff20000000006b90
 a2 : 0000000000f00000 a3 : ffffffff800104a8 a4 : 0000000000000000
 a5 : ff60000017ca4ec0 a6 : 0000000000f00000 a7 : 1fec000002f94b45
 s2 : ff20000000006ad0 s3 : 0000000000000001 s4 : ff20000000006ae0
 s5 : 0000000000000000 s6 : ffffffff80329c04 s7 : dfffffff00000000
 s8 : dfffffff00000000 s9 : ffffffff85ffc970 s10: 0000000000007fff
 s11: ff20000000006b90 t3 : 1fec000002f94b3b t4 : 000000000000000d
 t5 : 0cc32ed8aad255d0 t6 : 1fec000002f94b54
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff800104a8>] fp_is_valid arch/riscv/kernel/stacktrace.c:26 [inline]
[<ffffffff800104a8>] walk_stackframe+0x114/0x452 arch/riscv/kernel/stacktrace.c:60
[<ffffffff85fd9d60>] arch_stack_walk+0x1c/0x24 arch/riscv/kernel/stacktrace.c:163
[<ffffffff80329c04>] stack_trace_save+0xa0/0xd2 kernel/stacktrace.c:122
[<ffffffff8096f35a>] kasan_save_stack+0x3e/0x6a mm/kasan/common.c:47
[<ffffffff8096f3b0>] kasan_save_track+0x16/0x28 mm/kasan/common.c:68
[<ffffffff809720c4>] kasan_save_alloc_info+0x30/0x3e mm/kasan/generic.c:565
[<ffffffff8096ee46>] poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
[<ffffffff8096ee46>] __kasan_kmalloc+0xa0/0xa6 mm/kasan/common.c:394
[<ffffffff808dcd64>] kasan_kmalloc include/linux/kasan.h:257 [inline]
[<ffffffff808dcd64>] __do_kmalloc_node mm/slub.c:4265 [inline]
[<ffffffff808dcd64>] __kmalloc_node_track_caller_noprof+0x272/0x520 mm/slub.c:4284
[<ffffffff84c87ac0>] kmalloc_reserve+0xfe/0x2be net/core/skbuff.c:609
[<ffffffff84c94eaa>] __alloc_skb+0x152/0x42a net/core/skbuff.c:678
[<ffffffff851d0914>] alloc_skb include/linux/skbuff.h:1322 [inline]
[<ffffffff851d0914>] synproxy_send_client_synack+0x1b4/0xc9a net/netfilter/nf_synproxy_core.c:460
[<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
[<ffffffff85ffcca8>] __do_softirq+0x12/0x1a kernel/softirq.c:588
[<ffffffff80006f74>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:85
[<ffffffff85ffcc0a>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:355