INFO: task syz.6.517:8185 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.6.517       state:D stack:0     pid:8185  tgid:8184  ppid:6917   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
[<ffffffff858f2266>] cleanup_match net/ipv6/netfilter/ip6_tables.c:477 [inline]
[<ffffffff858f2266>] find_check_entry.constprop.0+0x47a/0x8e4 net/ipv6/netfilter/ip6_tables.c:581
[<ffffffff858f4540>] translate_table+0xc28/0x15da net/ipv6/netfilter/ip6_tables.c:733
[<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
2 locks held by getty/3117:
 #0: ff60000017c3c0a0 (&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 kworker/u10:6/4797:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff2000000b877c90 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
2 locks held by kworker/0:6/5190:
2 locks held by syz.8.514/8958:
1 lock held by modprobe/8961:

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

NMI backtrace for cpu 0
CPU: 0 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6415 Comm: kworker/u9:0 Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_unbound nsim_dev_trap_report_work
epc : kasan_quarantine_put+0x8a/0x1fa mm/kasan/quarantine.c:236
 ra : kasan_quarantine_put+0x198/0x1fa mm/kasan/quarantine.c:234
epc : ffffffff80973716 ra : ffffffff80973824 sp : ff200000037078f0
 gp : ffffffff899c0180 tp : ff6000001a8b8000 t0 : ff200000037078d0
 t1 : 000000000000000a t2 : 0000000000000001 s0 : ff20000003707930
 s1 : 0000000000071d70 a0 : 0000000000000001 a1 : ffffffff8663e620
 a2 : 0000000000000006 a3 : 0000000000000001 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : ff6000001a8b8bb8 a7 : 1fec000003517177
 s2 : ff60000034021c80 s3 : 0000000000000002 s4 : ff60000011a8f500
 s5 : 0000000000000000 s6 : 0000000000000000 s7 : ffffffff89abc6c0
 s8 : ff60000034021c80 s9 : ff6000002ac1e000 s10: dfffffff00000000
 s11: ffffffff86e3c87c t3 : 1fec000003517163 t4 : fffffffef2192f2e
 t5 : fffffffef2192f2f t6 : 1fec00000351717c
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80973716>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff80973716>] kasan_quarantine_put+0x8a/0x1fa mm/kasan/quarantine.c:234
[<ffffffff8096fcba>] __kasan_slab_free+0x56/0x68 mm/kasan/common.c:271
[<ffffffff808da82e>] kasan_slab_free include/linux/kasan.h:230 [inline]
[<ffffffff808da82e>] slab_free_hook mm/slub.c:2342 [inline]
[<ffffffff808da82e>] slab_free mm/slub.c:4579 [inline]
[<ffffffff808da82e>] kmem_cache_free+0x244/0x5f4 mm/slub.c:4681
[<ffffffff84c8f23a>] kfree_skbmem+0x1b4/0x1ee net/core/skbuff.c:1148
[<ffffffff84cb3ff0>] __kfree_skb net/core/skbuff.c:1205 [inline]
[<ffffffff84cb3ff0>] consume_skb net/core/skbuff.c:1436 [inline]
[<ffffffff84cb3ff0>] consume_skb+0xd8/0xfa 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