INFO: task syz.5.1262:16023 blocked for more than 430 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g6f6ecce59d99 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.1262      state:D stack:0     pid:16023 tgid:16022 ppid:13949  flags:0x0000000c
Call Trace:
[<ffffffff861cacc4>] context_switch kernel/sched/core.c:5369 [inline]
[<ffffffff861cacc4>] __schedule+0xdaa/0x393a kernel/sched/core.c:6756
[<ffffffff861cd918>] __schedule_loop kernel/sched/core.c:6833 [inline]
[<ffffffff861cd918>] schedule+0xc4/0x324 kernel/sched/core.c:6848
[<ffffffff861e0f8a>] schedule_timeout+0x1c6/0x28a kernel/time/sleep_timeout.c:75
[<ffffffff861cf3fc>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff861cf3fc>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff861cf702>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff861cf702>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff801aecf0>] __flush_work+0x5ee/0xcba kernel/workqueue.c:4231
[<ffffffff801b09ce>] __cancel_work_sync+0x136/0x15a kernel/workqueue.c:4351
[<ffffffff801b4ce2>] cancel_delayed_work_sync+0x1c/0x26 kernel/workqueue.c:4425
[<ffffffff85501a3a>] htable_put.part.0+0x1a0/0x278 net/netfilter/xt_hashlimit.c:429
[<ffffffff85503d96>] htable_put net/netfilter/xt_hashlimit.c:424 [inline]
[<ffffffff85503d96>] hashlimit_mt_destroy+0x7e/0xa6 net/netfilter/xt_hashlimit.c:977
[<ffffffff85b1481c>] cleanup_match net/ipv6/netfilter/ip6_tables.c:477 [inline]
[<ffffffff85b1481c>] cleanup_entry+0x15e/0x326 net/ipv6/netfilter/ip6_tables.c:661
[<ffffffff85b156d8>] translate_table+0xcf4/0x15da net/ipv6/netfilter/ip6_tables.c:744
[<ffffffff85b1b6cc>] do_replace+0x2f8/0x432 net/ipv4/netfilter/ip_tables.c:1137
[<ffffffff85b1bba4>] do_ip6t_set_ctl+0x39e/0x916 net/ipv6/netfilter/ip6_tables.c:1644
[<ffffffff8532e74e>] nf_setsockopt+0x78/0xda net/netfilter/nf_sockopt.c:101
[<ffffffff859eed7e>] ipv6_setsockopt+0x13c/0x16e net/ipv6/ipv6_sockglue.c:998
[<ffffffff85a17c4e>] rawv6_setsockopt+0xe8/0x64c net/ipv6/raw.c:1054
[<ffffffff84e74418>] sock_common_setsockopt+0x90/0xc0 net/core/sock.c:3814
[<ffffffff84e659ba>] do_sock_setsockopt+0x208/0x400 net/socket.c:2313
[<ffffffff84e70df8>] __sys_setsockopt+0x140/0x1cc net/socket.c:2338
[<ffffffff84e70f2a>] __do_sys_setsockopt net/socket.c:2344 [inline]
[<ffffffff84e70f2a>] __se_sys_setsockopt net/socket.c:2341 [inline]
[<ffffffff84e70f2a>] __riscv_sys_setsockopt+0xa6/0x114 net/socket.c:2341
[<ffffffff80070302>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff861c0d02>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff861e527e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff881d0d40 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x68/0x2e6 kernel/locking/lockdep.c:6740
2 locks held by getty/3130:
 #0: ff6000001888a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff2000000008b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
1 lock held by sshd/3152:
3 locks held by kworker/u10:15/9471:
2 locks held by kworker/u9:2/11562:
 #0: ff60000011471148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f38 kernel/workqueue.c:3204
 #1: ffffffff90d43338 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x130/0x33e lib/debugobjects.c:818
2 locks held by kworker/0:6/13438:
2 locks held by kworker/1:1/13781:
3 locks held by kworker/u10:6/13961:
3 locks held by kworker/u9:0/16155:
2 locks held by syz-executor/16236:
2 locks held by kworker/1:6/16254:
2 locks held by kworker/u9:9/16970:
 #0: ff60000011471148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f38 kernel/workqueue.c:3204
 #1: ff20000001f27c90 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f38 kernel/workqueue.c:3204
1 lock held by dhcpcd-run-hook/17041:
2 locks held by modprobe/17042:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-g6f6ecce59d99 #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80071bd0>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000325c>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8005e1ec>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8005e1ec>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff8005e280>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff8618497c>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86184c34>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff8007c976>] arch_trigger_cpumask_backtrace+0x2c/0x3e arch/riscv/kernel/smp.c:347
[<ffffffff804b8ee4>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff804b8ee4>] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
[<ffffffff804b8ee4>] watchdog+0xcee/0x1170 kernel/hung_task.c:397
[<ffffffff801c6dd0>] kthread+0x28c/0x3a4 kernel/kthread.c:389
[<ffffffff861e5396>] ret_from_fork+0xe/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: 16254 Comm: kworker/1:6 Not tainted 6.13.0-rc3-syzkaller-g6f6ecce59d99 #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_power_efficient htable_gc
epc : arch_local_irq_restore+0xc/0x12 arch/riscv/include/asm/irqflags.h:52
 ra : lock_is_held_type+0x14e/0x1f0 kernel/locking/lockdep.c:5923
epc : ffffffff802a7090 ra : ffffffff861c1834 sp : ff20000001e67900
 gp : ffffffff899f64c0 tp : ff6000001a248000 t0 : f0bb558150d870c0
 t1 : ffe3ffff001e7209 t2 : 0000000000000784 s0 : ff20000001e67910
 s1 : ffffffff90da3028 a0 : 0000000000000002 a1 : 0000000000000000
 a2 : 0000000000000000 a3 : ffffffff8162251e a4 : 0000000000000000
 a5 : 0000000000000001 a6 : 0000000000000003 a7 : 1fec00000344916d
 s2 : ff6000005cde0748 s3 : 0000000000000000 s4 : ff6000001a249000
 s5 : ffffffffffffffff s6 : 0000000200000022 s7 : ffffffff8645a748
 s8 : ffffffff90da3020 s9 : 0000000000000002 s10: 1fe40000001e7211
 s11: 0000000000000000 t3 : ff6000001a248b20 t4 : ffe3ffff001e7209
 t5 : ffe3ffff001e720a t6 : 0000000000000006
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff802a7090>] arch_local_irq_restore+0xc/0x12 arch/riscv/include/asm/irqflags.h:51
[<ffffffff861c1834>] lock_is_held_type+0x14e/0x1f0 kernel/locking/lockdep.c:5923
[<ffffffff801f2a12>] lock_is_held include/linux/lockdep.h:249 [inline]
[<ffffffff801f2a12>] __might_resched+0x2b4/0x5f8 kernel/sched/core.c:8720
[<ffffffff85500838>] htable_selective_cleanup+0x268/0x420 net/netfilter/xt_hashlimit.c:375
[<ffffffff85501500>] htable_gc+0x20/0xaa net/netfilter/xt_hashlimit.c:385
[<ffffffff801a78c0>] process_one_work+0x968/0x1f38 kernel/workqueue.c:3229
[<ffffffff801a944e>] process_scheduled_works kernel/workqueue.c:3310 [inline]
[<ffffffff801a944e>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3391
[<ffffffff801c6dd0>] kthread+0x28c/0x3a4 kernel/kthread.c:389
[<ffffffff861e5396>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327