INFO: task syz.2.901:7834 blocked for more than 430 seconds.
      Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.901       state:D stack:0     pid:7834  tgid:7832  ppid:5628   flags:0x00000006
Call Trace:
[<ffffffff85fe99a2>] context_switch kernel/sched/core.c:5328 [inline]
[<ffffffff85fe99a2>] __schedule+0xd58/0x3848 kernel/sched/core.c:6690
[<ffffffff85fec556>] __schedule_loop kernel/sched/core.c:6767 [inline]
[<ffffffff85fec556>] schedule+0xc4/0x324 kernel/sched/core.c:6782
[<ffffffff85fff302>] schedule_timeout+0x1e2/0x296 kernel/time/timer.c:2591
[<ffffffff85fedf32>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff85fedf32>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff85fee238>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff85fee238>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff8013c83e>] __flush_work+0x5ee/0xcba kernel/workqueue.c:4217
[<ffffffff8013e51c>] __cancel_work_sync+0x136/0x15a kernel/workqueue.c:4337
[<ffffffff80142830>] cancel_delayed_work_sync+0x1c/0x26 kernel/workqueue.c:4411
[<ffffffff852efe86>] htable_put.part.0+0x1a0/0x278 net/netfilter/xt_hashlimit.c:429
[<ffffffff852f213c>] htable_put net/netfilter/xt_hashlimit.c:424 [inline]
[<ffffffff852f213c>] hashlimit_mt_destroy_v1+0x7e/0xa6 net/netfilter/xt_hashlimit.c:970
[<ffffffff858f3750>] cleanup_match net/ipv6/netfilter/ip6_tables.c:477 [inline]
[<ffffffff858f3750>] cleanup_entry+0x15e/0x326 net/ipv6/netfilter/ip6_tables.c:661
[<ffffffff858f460c>] translate_table+0xcf4/0x15da net/ipv6/netfilter/ip6_tables.c:744
[<ffffffff858faf20>] do_replace+0x2f8/0x432 net/ipv4/netfilter/ip_tables.c:1137
[<ffffffff858fb3f8>] do_ip6t_set_ctl+0x39e/0x92a net/ipv6/netfilter/ip6_tables.c:1644
[<ffffffff8511dd9a>] nf_setsockopt+0x78/0xda net/netfilter/nf_sockopt.c:101
[<ffffffff857cfeec>] ipv6_setsockopt+0x13c/0x16e net/ipv6/ipv6_sockglue.c:998
[<ffffffff857f8474>] rawv6_setsockopt+0xe8/0x64c net/ipv6/raw.c:1054
[<ffffffff84c6ca60>] sock_common_setsockopt+0x90/0xc0 net/core/sock.c:3803
[<ffffffff84c5f7ce>] do_sock_setsockopt+0x20a/0x402 net/socket.c:2334
[<ffffffff84c698d0>] __sys_setsockopt+0xf0/0x1aa net/socket.c:2357
[<ffffffff84c69a30>] __do_sys_setsockopt net/socket.c:2366 [inline]
[<ffffffff84c69a30>] __se_sys_setsockopt net/socket.c:2363 [inline]
[<ffffffff84c69a30>] __riscv_sys_setsockopt+0xa6/0x114 net/socket.c:2363
[<ffffffff8000f2cc>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85fdfb66>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff860029b6>] _new_vmalloc_restore_context_a0+0xc2/0xce

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff881cc080 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
2 locks held by syslogd/2967:
3 locks held by dhcpcd/3016:
2 locks held by getty/3125:
 #0: ff6000001c6840a0 (&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
2 locks held by syz-executor/3149:
5 locks held by kworker/1:2/4681:
3 locks held by kworker/u9:1/5025:
3 locks held by kworker/u9:2/6531:
2 locks held by kworker/1:8/6752:
4 locks held by kworker/u8:3/6962:
 #0: ff60000011e81948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000004167c90 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: 
ffffffff89597c70 (pernet_ops_rwsem
){++++}-{3:3}, at: cleanup_net+0xda/0x984 net/core/net_namespace.c:580
 #3: ffffffff881dc600 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:4562
2 locks held by kworker/1:0/7856:
4 locks held by syz-executor/7860:
 #0: ff6000001b9fe420 (sb_writers#7){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1716 [inline]
 #0: ff6000001b9fe420 (sb_writers#7){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1852 [inline]
 #0: ff6000001b9fe420 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
 #0: ff6000001b9fe420 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x728/0x9b4 fs/read_write.c:679
 #1: ff6000001e0cd088 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x23a/0x460 fs/kernfs/file.c:325
 #2: ff6000001b039b48 (kn->active#4){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x258/0x460 fs/kernfs/file.c:326
 #3: ffffffff88e12dc8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xf0/0x48c drivers/net/netdevsim/bus.c:216
2 locks held by kworker/1:4/7866:
8 locks held by syz-executor/7869:
3 locks held by kworker/u9:9/8112:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80010a0c>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85f822a0>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85fdd896>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff85fdd896>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:120
[<ffffffff85fdd926>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff85f45986>] nmi_cpu_backtrace+0x39c/0x39e lib/nmi_backtrace.c:113
[<ffffffff85f45c3e>] nmi_trigger_cpumask_backtrace+0x2b6/0x456 lib/nmi_backtrace.c:62
[<ffffffff8001996c>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:347
[<ffffffff80432008>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff80432008>] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
[<ffffffff80432008>] watchdog+0xcfa/0x1178 kernel/hung_task.c:379
[<ffffffff80154924>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff86002ace>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
epc : lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5790
 ra : lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 ra : lock_acquire.part.0+0x2d6/0x81c kernel/locking/lockdep.c:5827
epc : ffffffff802497ac ra : ffffffff80249716 sp : ff200000001a6880
 gp : ffffffff899c0180 tp : ff60000012aa0000 t0 : ff60000012aa0b20
 t1 : ff60000012aa0b70 t2 : 0000000000000006 s0 : ff200000001a69e0
 s1 : ff6000005cde0708 a0 : ffffffff90d62aa8 a1 : ffffffff8663e8a0
 a2 : 0000000000000014 a3 : ffffffff89abdd80 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : ffffffff8d1b74e0 a7 : 0000000056e543b7
 s2 : ffffffff90d62aa8 s3 : 0000000000000000 s4 : ffffffff881cc080
 s5 : 1fe4000000034d18 s6 : 0000000000000000 s7 : ffffffff854db6f6
 s8 : 0000000000000000 s9 : ffffffff86458708 s10: ffffffff90d62aa0
 s11: 0000000000000002 t3 : 1fec000002554163 t4 : 000000000000000f
 t5 : 8374b928a67c3bc0 t6 : 1fec000002554172
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff802497ac>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff802497ac>] lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5828
[<ffffffff80249cd0>] lock_acquire+0x74/0x98 kernel/locking/lockdep.c:5798
[<ffffffff854db730>] rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
[<ffffffff854db730>] rcu_read_lock include/linux/rcupdate.h:849 [inline]
[<ffffffff854db730>] __inet_dev_addr_type+0x14c/0x848 net/ipv4/fib_frontend.c:220
[<ffffffff854dc1ae>] inet_addr_type_dev_table+0xec/0x226 net/ipv4/fib_frontend.c:267
[<ffffffff855c1382>] ip_route_me_harder+0x824/0x1158 net/ipv4/netfilter.c:36
[<ffffffff851d2210>] synproxy_send_tcp.isra.0+0x2be/0x5d2 net/netfilter/nf_synproxy_core.c:431
[<ffffffff851d42b0>] synproxy_send_client_synack+0x940/0xc9a net/netfilter/nf_synproxy_core.c:484
[<ffffffff852aa3f0>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff852aa3f0>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff852aa5f4>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff851e09c2>] expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
[<ffffffff851e09c2>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:288
[<ffffffff8523a49c>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff851158f4>] nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
[<ffffffff851158f4>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:626
[<ffffffff85333632>] nf_hook include/linux/netfilter.h:269 [inline]
[<ffffffff85333632>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff85333632>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff853320da>] dst_input include/net/dst.h:460 [inline]
[<ffffffff853320da>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:449
[<ffffffff85333986>] NF_HOOK include/linux/netfilter.h:314 [inline]
[<ffffffff85333986>] NF_HOOK include/linux/netfilter.h:308 [inline]
[<ffffffff85333986>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:569
[<ffffffff84d25ad0>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5670
[<ffffffff84d25d50>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:5783
[<ffffffff84d26dd4>] process_backlog+0x4fc/0x1cbc net/core/dev.c:6115
[<ffffffff84d2b686>] __napi_poll.constprop.0+0xaa/0x4b8 net/core/dev.c:6779
[<ffffffff84d2c4a6>] napi_poll net/core/dev.c:6848 [inline]
[<ffffffff84d2c4a6>] net_rx_action+0xa12/0xf10 net/core/dev.c:6970
[<ffffffff800e0a66>] handle_softirqs+0x4a6/0x10de kernel/softirq.c:554
[<ffffffff800e176c>] run_ksoftirqd kernel/softirq.c:927 [inline]
[<ffffffff800e176c>] run_ksoftirqd+0xce/0x144 kernel/softirq.c:919
[<ffffffff8016aa56>] smpboot_thread_fn+0x654/0xb98 kernel/smpboot.c:164
[<ffffffff80154924>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff86002ace>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326