INFO: task syz-executor:8492 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-executor    state:D stack:0     pid:8492  tgid:8492  ppid:1      task_flags:0x400140 flags:0x0000000c
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863318e8>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6935
[<ffffffff8633538c>] __mutex_lock_common kernel/locking/mutex.c:679 [inline]
[<ffffffff8633538c>] __mutex_lock+0x9be/0x1292 kernel/locking/mutex.c:747
[<ffffffff86335c74>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:799
[<ffffffff851723e4>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff851723e4>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff851723e4>] rtnl_newlink+0x64c/0x1d78 net/core/rtnetlink.c:4054
[<ffffffff8517597e>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6944
[<ffffffff854cd2c6>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2534
[<ffffffff851627f4>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6971
[<ffffffff854cb57a>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
[<ffffffff854cb57a>] netlink_unicast+0x4f0/0x82c net/netlink/af_netlink.c:1339
[<ffffffff854cc114>] netlink_sendmsg+0x85e/0xdd6 net/netlink/af_netlink.c:1883
[<ffffffff85047a86>] sock_sendmsg_nosec net/socket.c:712 [inline]
[<ffffffff85047a86>] __sock_sendmsg+0xcc/0x160 net/socket.c:727
[<ffffffff85050006>] __sys_sendto+0x27a/0x34e net/socket.c:2180
[<ffffffff8505019a>] __do_sys_sendto net/socket.c:2187 [inline]
[<ffffffff8505019a>] __se_sys_sendto net/socket.c:2183 [inline]
[<ffffffff8505019a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2183
[<ffffffff800769ae>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86323342>] do_trap_ecall_u+0x396/0x530 arch/riscv/kernel/traps.c:341
[<ffffffff8634b7da>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197
INFO: task kworker/u10:12:8555 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:kworker/u10:12  state:D stack:0     pid:8555  tgid:8555  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound linkwatch_event
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863318e8>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6935
[<ffffffff8633538c>] __mutex_lock_common kernel/locking/mutex.c:679 [inline]
[<ffffffff8633538c>] __mutex_lock+0x9be/0x1292 kernel/locking/mutex.c:747
[<ffffffff86335c74>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:799
[<ffffffff8515e1e4>] rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
[<ffffffff8518959e>] linkwatch_event+0x70/0xdc net/core/link_watch.c:303
[<ffffffff801bd390>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801c04a0>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801c04a0>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
INFO: task syz-executor:8874 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-executor    state:D stack:0     pid:8874  tgid:8874  ppid:8831   task_flags:0x400140 flags:0x00000004
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863318e8>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6935
[<ffffffff8633538c>] __mutex_lock_common kernel/locking/mutex.c:679 [inline]
[<ffffffff8633538c>] __mutex_lock+0x9be/0x1292 kernel/locking/mutex.c:747
[<ffffffff86335c74>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:799
[<ffffffff851723e4>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff851723e4>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff851723e4>] rtnl_newlink+0x64c/0x1d78 net/core/rtnetlink.c:4054
[<ffffffff8517597e>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6944
[<ffffffff854cd2c6>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2534
[<ffffffff851627f4>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6971
[<ffffffff854cb57a>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
[<ffffffff854cb57a>] netlink_unicast+0x4f0/0x82c net/netlink/af_netlink.c:1339
[<ffffffff854cc114>] netlink_sendmsg+0x85e/0xdd6 net/netlink/af_netlink.c:1883
[<ffffffff85047a86>] sock_sendmsg_nosec net/socket.c:712 [inline]
[<ffffffff85047a86>] __sock_sendmsg+0xcc/0x160 net/socket.c:727
[<ffffffff85050006>] __sys_sendto+0x27a/0x34e net/socket.c:2180
[<ffffffff8505019a>] __do_sys_sendto net/socket.c:2187 [inline]
[<ffffffff8505019a>] __se_sys_sendto net/socket.c:2183 [inline]
[<ffffffff8505019a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2183
[<ffffffff800769ae>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86323342>] do_trap_ecall_u+0x396/0x530 arch/riscv/kernel/traps.c:341
[<ffffffff8634b7da>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197

Showing all locks held in the system:
1 lock held by khungtaskd/39:
 #0: ffffffff883dc420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
1 lock held by klogd/3006:
1 lock held by dhcpcd/3050:
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by getty/3155:
 #0: ffffaf801c1780a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
2 locks held by syz-executor/3182:
5 locks held by kworker/u8:0/3646:
2 locks held by kworker/1:4/3926:
4 locks held by kworker/1:10/7536:
2 locks held by kworker/0:5/7557:
3 locks held by kworker/u8:3/7560:
 #0: ffffaf801892c948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8004b67b70 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by kworker/1:0/8335:
1 lock held by syz-executor/8492:
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1d78 net/core/rtnetlink.c:4054
3 locks held by kworker/u10:12/8555:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8005547b70 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by kworker/u9:19/8600:
3 locks held by kworker/u9:20/8602:
2 locks held by kworker/1:2/8753:
4 locks held by kworker/1:3/8796:
1 lock held by syz.3.1084/8799:
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
1 lock held by syz-executor/8874:
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1d78 net/core/rtnetlink.c:4054
2 locks held by kworker/1:6/8960:
1 lock held by syz-executor/8963:
 #0: ffffffff8986c1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 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
[<ffffffff862e5a74>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff862e5d2c>] 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
[<ffffffff8634b8fa>] 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: 8335 Comm: kworker/1:0 Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
epc : preempt_count include/asm-generic/preempt.h:11 [inline]
epc : __local_bh_enable_ip+0x48/0x5e8 kernel/softirq.c:386
 ra : local_bh_enable include/linux/bottom_half.h:33 [inline]
 ra : ipt_do_table+0xe88/0x1c82 net/ipv4/netfilter/ip_tables.c:357
epc : ffffffff80160b54 ra : ffffffff85a10692 sp : ffff8f8000017410
 gp : ffffffff89c83ca0 tp : ffffaf80214ecec0 t0 : ffffaf80197abe00
 t1 : 0000000000000000 t2 : fffffffff2f20000 s0 : ffff8f8000017460
 s1 : 0000000000000200 a0 : ffffffff85a1066e a1 : 0000000000000200
 a2 : 0000000000f00000 a3 : ffffffff85a1067e a4 : 0000000000000000
 a5 : 0000000000000001 a6 : 0000000000f00000 a7 : 0000000000000000
 s2 : 0000000000000000 s3 : ffffffff85a1066e s4 : ffffaf80214ecec0
 s5 : ffffaf80214ecec8 s6 : 1ffff5f00429d9d9 s7 : 0000000000000001
 s8 : ffff8f80000176a0 s9 : dfffffff00000000 s10: ffff8f8000017640
 s11: ffffaf802ce59600 t3 : 1ffff5f003db1902 t4 : ffffffff876aac08
 t5 : ffffaf801b25e128 t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80160b54>] preempt_count include/asm-generic/preempt.h:11 [inline]
[<ffffffff80160b54>] __local_bh_enable_ip+0x48/0x5e8 kernel/softirq.c:386
[<ffffffff85a10692>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff85a10692>] ipt_do_table+0xe88/0x1c82 net/ipv4/netfilter/ip_tables.c:357
[<ffffffff855393e0>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff855393e0>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff8575e242>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff8575e242>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff8575e242>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff8575c2f8>] dst_input include/net/dst.h:469 [inline]
[<ffffffff8575c2f8>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff8575e596>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff8575e596>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff8575e596>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff8511db78>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff8511ddf8>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff8511eff8>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff85123992>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff85124876>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff85124876>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015e7ae>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff8634b9f4>] __do_softirq+0x12/0x1a kernel/softirq.c:613
[<ffffffff8006845c>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:85
[<ffffffff8634b942>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:360