INFO: task syz.1.708:5586 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:syz.1.708       state:D stack:0     pid:5586  tgid:5582  ppid:3208   task_flags:0x400140 flags:0x0000000c
Call Trace:
[<ffffffff86307720>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86307720>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8630a856>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8630a856>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff8631edea>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff8630c3de>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff8630c3de>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff8630c60e>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8630c60e>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80375b84>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff85105ec4>] netdev_run_todo+0x294/0x10b4 net/core/dev.c:11376
[<ffffffff8513609c>] rtnl_unlock+0x14/0x1c net/core/rtnetlink.c:157
[<ffffffff851ce922>] rtnl_net_unlock include/linux/rtnetlink.h:135 [inline]
[<ffffffff851ce922>] dev_ioctl+0x8a2/0xfb6 net/core/dev_ioctl.c:851
[<ffffffff8502474c>] sock_ioctl+0x600/0xa0e net/socket.c:1236
[<ffffffff80c4bab8>] vfs_ioctl fs/ioctl.c:51 [inline]
[<ffffffff80c4bab8>] __do_sys_ioctl fs/ioctl.c:907 [inline]
[<ffffffff80c4bab8>] __se_sys_ioctl fs/ioctl.c:893 [inline]
[<ffffffff80c4bab8>] __riscv_sys_ioctl+0x180/0x1e4 fs/ioctl.c:893
[<ffffffff800769ae>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff862fcc32>] do_trap_ecall_u+0x396/0x530 arch/riscv/kernel/traps.c:341
[<ffffffff863250ca>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197

Showing all locks held in the system:
2 locks held by kworker/u9:1/28:
1 lock held by khungtaskd/36:
 #0: ffffffff883dc420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
3 locks held by kworker/0:2/60:
1 lock held by syslogd/2983:
3 locks held by kworker/u8:2/3122:
 #0: ffffaf806ed3b0d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
 #0: ffffaf806ed3b0d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1532 [inline]
 #0: ffffaf806ed3b0d8 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1856 [inline]
 #0: ffffaf806ed3b0d8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x304/0x4094 kernel/sched/core.c:6709
 #1: ffffaf806ed25688 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x22a/0x718 kernel/sched/psi.c:987
 #2: ffffffff89866e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by getty/3151:
 #0: ffffaf801ceba0a0 (&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+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
1 lock held by syz-executor/3211:
2 locks held by kworker/u9:5/4947:
2 locks held by kworker/1:1/5009:
3 locks held by kworker/1:0/5340:
5 locks held by kworker/u9:2/5345:
1 lock held by syz.1.708/5586:
 #0: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
1 lock held by syz-executor/5604:
3 locks held by dhcpcd-run-hook/5977:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 36 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
[<ffffffff862bf364>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff862bf61c>] 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
[<ffffffff863251ea>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5345 Comm: kworker/u9:2 Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-kex-wg1 wg_packet_handshake_send_worker
epc : mod_node_page_state+0x28/0x6a mm/vmstat.c:746
 ra : mod_node_page_state+0x58/0x6a mm/vmstat.c:745
epc : ffffffff808e460c ra : ffffffff808e463c sp : ffff8f80000167c0
 gp : ffffffff89c7e9c0 tp : ffffaf801bf18000 t0 : ffff8f8000016000
 t1 : fffff1af001d1a3b t2 : 1ffff1f000002cac s0 : ffff8f80000167f0
 s1 : 0000000000000002 a0 : 0000000000000001 a1 : ffffffff87d6da40
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffff8d8000e8d1db
 s2 : ffffaf8072fee580 s3 : 0000000000000006 s4 : 0000000000002000
 s5 : ffffaf8072fee580 s6 : 0000000000000001 s7 : ffffffffffffffff
 s8 : 0000000000000000 s9 : 00000000000015c0 s10: ffffaf8072fefb50
 s11: ffffffff90ea8d20 t3 : d3777d9300000000 t4 : fffff1af001d1a3b
 t5 : fffff1af001d1a3c t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff808e460c>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff808e460c>] mod_node_page_state+0x28/0x6a mm/vmstat.c:745
[<ffffffff80a4ce48>] account_slab mm/slub.c:2580 [inline]
[<ffffffff80a4ce48>] allocate_slab mm/slub.c:2638 [inline]
[<ffffffff80a4ce48>] new_slab+0x11c/0x34c mm/slub.c:2673
[<ffffffff80a4dbdc>] ___slab_alloc+0xb64/0x1214 mm/slub.c:3859
[<ffffffff80a4e2ec>] __slab_alloc.constprop.0+0x60/0xb0 mm/slub.c:3949
[<ffffffff80a53c1e>] __slab_alloc_node mm/slub.c:4024 [inline]
[<ffffffff80a53c1e>] slab_alloc_node mm/slub.c:4185 [inline]
[<ffffffff80a53c1e>] kmem_cache_alloc_noprof+0xd0/0x3d0 mm/slub.c:4204
[<ffffffff85540480>] __nf_conntrack_alloc+0xc8/0x5a4 net/netfilter/nf_conntrack_core.c:1674
[<ffffffff85541630>] init_conntrack.constprop.0+0xc8e/0xfec net/netfilter/nf_conntrack_core.c:1765
[<ffffffff85544440>] resolve_normal_ct net/netfilter/nf_conntrack_core.c:1885 [inline]
[<ffffffff85544440>] nf_conntrack_in+0xe80/0x1c3c net/netfilter/nf_conntrack_core.c:2037
[<ffffffff855544d8>] ipv4_conntrack_local+0xf6/0x200 net/netfilter/nf_conntrack_proto.c:229
[<ffffffff855127e8>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff855127e8>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff85752e66>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff85752e66>] __ip_local_out+0x498/0xbb2 net/ipv4/ip_output.c:118
[<ffffffff857535ae>] ip_local_out+0x2e/0x1a8 net/ipv4/ip_output.c:127
[<ffffffff855d0138>] synproxy_send_tcp.isra.0+0x3de/0x5d2 net/netfilter/nf_synproxy_core.c:439
[<ffffffff855d1f64>] synproxy_send_client_synack+0x6dc/0x8be net/netfilter/nf_synproxy_core.c:484
[<ffffffff856ab89c>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff856ab89c>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff856abaa0>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff855dd3ca>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff855dd3ca>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff85639588>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff855127e8>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff855127e8>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff8573764a>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff8573764a>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff8573764a>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff85735700>] dst_input include/net/dst.h:469 [inline]
[<ffffffff85735700>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff8573799e>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff8573799e>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff8573799e>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff850f58a8>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff850f5b28>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff850f6d28>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff850fb6c2>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff850fc5a6>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff850fc5a6>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015e7ae>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff863252e4>] __do_softirq+0x12/0x1a kernel/softirq.c:613
[<ffffffff8006845c>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:85
[<ffffffff86325232>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:360