INFO: task syz.9.1737:14404 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.9.1737      state:D stack:0     pid:14404 tgid:14402 ppid:13731  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
[<ffffffff852f21e2>] htable_put net/netfilter/xt_hashlimit.c:424 [inline]
[<ffffffff852f21e2>] hashlimit_mt_destroy+0x7e/0xa6 net/netfilter/xt_hashlimit.c:977
[<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/36:
 #0: ffffffff881cc080 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
1 lock held by syslogd/2970:
1 lock held by klogd/2974:
2 locks held by getty/3125:
 #0: ff6000001c8ac0a0 (&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 sshd/3149:
3 locks held by kworker/u10:6/7519:
 #0: ff6000005cdd3d18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:598 [inline]
 #0: ff6000005cdd3d18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
 #0: ff6000005cdd3d18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1804 [inline]
 #0: ff6000005cdd3d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x278/0x3848 kernel/sched/core.c:6589
 #1: ff6000005cdbf648 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x22c/0x71a kernel/sched/psi.c:987
 #2: ff6000005cdc13d8 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x564/0xb3a kernel/time/timer.c:1164
3 locks held by kworker/u9:1/10202:
3 locks held by kworker/u10:9/10465:
3 locks held by kworker/u10:5/12359:
3 locks held by kworker/1:1/13000:
2 locks held by kworker/0:3/13411:
3 locks held by kworker/u10:11/13631:
3 locks held by kworker/u9:9/13740:
2 locks held by kworker/u9:11/13842:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff200000041a7c90 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
3 locks held by kworker/u9:13/14306:
2 locks held by kworker/1:0/14403:
2 locks held by syz-executor/14414:
1 lock held by syz-executor/14424:
 #0: ffffffff895ae468 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff895ae468 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xdbe net/core/rtnetlink.c:6672
2 locks held by modprobe/15004:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 36 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 12359 Comm: kworker/u10:5 Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_unbound nsim_dev_trap_report_work
epc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
epc : _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
 ra : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 ra : _raw_spin_unlock_irqrestore+0x86/0xd6 kernel/locking/spinlock.c:194
epc : ffffffff8600169a ra : ffffffff860016ea sp : ff200000058f76f0
 gp : ffffffff899c0180 tp : ff6000001b350000 t0 : ff6000001b350b20
 t1 : fffffffef2188ab8 t2 : 0000000000000001 s0 : ff200000058f7710
 s1 : 0000000000000002 a0 : 0000000000000000 a1 : ffffffff8663e620
 a2 : 0000000000000006 a3 : 0000000000000002 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : ff6000001b350bb8 a7 : 1fec00000366a177
 s2 : ffffffff90c455c0 s3 : dead000000000100 s4 : dead000000000122
 s5 : dfffffff00000000 s6 : ff6000002a689000 s7 : ff6000002a688000
 s8 : 0000000000000003 s9 : 0000000000000003 s10: ff6000002a689000
 s11: ff6000002a688000 t3 : 1fec00000366a163 t4 : fffffffef2188ab8
 t5 : fffffffef2188ab9 t6 : 1fec00000366a17c
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff8600169a>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff8600169a>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
[<ffffffff8600169a>] _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
[<ffffffff814adf48>] __debug_check_no_obj_freed lib/debugobjects.c:998 [inline]
[<ffffffff814adf48>] debug_check_no_obj_freed+0x26a/0x4fc lib/debugobjects.c:1019
[<ffffffff808d76bc>] slab_free_hook mm/slub.c:2273 [inline]
[<ffffffff808d76bc>] slab_free mm/slub.c:4579 [inline]
[<ffffffff808d76bc>] kfree+0x316/0x4ce mm/slub.c:4727
[<ffffffff84c9ad78>] skb_kfree_head net/core/skbuff.c:1086 [inline]
[<ffffffff84c9ad78>] skb_free_head+0x230/0x2ec net/core/skbuff.c:1098
[<ffffffff84ca6516>] skb_release_data+0x6ec/0x86a net/core/skbuff.c:1125
[<ffffffff84cb3fe2>] skb_release_all net/core/skbuff.c:1190 [inline]
[<ffffffff84cb3fe2>] __kfree_skb net/core/skbuff.c:1204 [inline]
[<ffffffff84cb3fe2>] consume_skb net/core/skbuff.c:1436 [inline]
[<ffffffff84cb3fe2>] consume_skb+0xca/0xfa net/core/skbuff.c:1430
[<ffffffff8331ce0e>] nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
[<ffffffff8331ce0e>] nsim_dev_trap_report_work+0x85a/0xc14 drivers/net/netdevsim/dev.c:851
[<ffffffff8013564e>] process_one_work+0x956/0x1dae kernel/workqueue.c:3229
[<ffffffff80137064>] process_scheduled_works kernel/workqueue.c:3310 [inline]
[<ffffffff80137064>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3391
[<ffffffff80154924>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff86002ace>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326