INFO: task kworker/u9:2:3379 blocked for more than 430 seconds.
      Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u9:2    state:D stack:0     pid:3379  tgid:3379  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff8624d1e2>] context_switch kernel/sched/core.c:5377 [inline]
[<ffffffff8624d1e2>] __schedule+0xe4c/0x3d70 kernel/sched/core.c:6764
[<ffffffff862501ca>] __schedule_loop kernel/sched/core.c:6841 [inline]
[<ffffffff862501ca>] schedule+0xc4/0x324 kernel/sched/core.c:6856
[<ffffffff86250b14>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6913
[<ffffffff86254610>] __mutex_lock_common kernel/locking/mutex.c:662 [inline]
[<ffffffff86254610>] __mutex_lock+0x9b2/0x1230 kernel/locking/mutex.c:730
[<ffffffff86254ea2>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:782
[<ffffffff8036cb44>] rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
[<ffffffff806f6c48>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805955ca>] bpf_map_free kernel/bpf/syscall.c:841 [inline]
[<ffffffff805955ca>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:867
[<ffffffff801b3668>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3236
[<ffffffff801b667a>] process_scheduled_works kernel/workqueue.c:3317 [inline]
[<ffffffff801b667a>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3398
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327
INFO: task syz.1.158:4294 blocked for more than 430 seconds.
      Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.158       state:D stack:0     pid:4294  tgid:4294  ppid:3181   task_flags:0x400040 flags:0x00000008
Call Trace:
[<ffffffff8624d1e2>] context_switch kernel/sched/core.c:5377 [inline]
[<ffffffff8624d1e2>] __schedule+0xe4c/0x3d70 kernel/sched/core.c:6764
[<ffffffff862501ca>] __schedule_loop kernel/sched/core.c:6841 [inline]
[<ffffffff862501ca>] schedule+0xc4/0x324 kernel/sched/core.c:6856
[<ffffffff86264482>] schedule_timeout+0x1c6/0x28a kernel/time/sleep_timeout.c:75
[<ffffffff86251d06>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff86251d06>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff8625200c>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8625200c>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff8036cdca>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3809
[<ffffffff84faee26>] netdev_run_todo+0x294/0x10b4 net/core/dev.c:11130
[<ffffffff84fd9968>] rtnl_unlock+0x14/0x1c net/core/rtnetlink.c:151
[<ffffffff831a95e4>] tun_detach drivers/net/tun.c:708 [inline]
[<ffffffff831a95e4>] tun_chr_close+0xde/0x230 drivers/net/tun.c:3521
[<ffffffff80b690da>] __fput+0x37e/0x9f4 fs/file_table.c:448
[<ffffffff80b697f6>] ____fput+0x1c/0x26 fs/file_table.c:476
[<ffffffff801cdcd4>] task_work_run+0x16a/0x25e kernel/task_work.c:227
[<ffffffff86243b62>] resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
[<ffffffff86243b62>] exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
[<ffffffff86243b62>] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
[<ffffffff86243b62>] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
[<ffffffff86243b62>] syscall_exit_to_user_mode+0x290/0x2a4 kernel/entry/common.c:218
[<ffffffff86242936>] do_trap_ecall_u+0x86/0x216 arch/riscv/kernel/traps.c:345
[<ffffffff86268776>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:197

Showing all locks held in the system:
4 locks held by kworker/0:1/9:
1 lock held by kworker/R-mm_pe/13:
1 lock held by khungtaskd/37:
 #0: ffffffff883d8200 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x68/0x288 kernel/locking/lockdep.c:6742
5 locks held by kworker/1:2/828:
2 locks held by getty/3140:
 #0: ffffaf801cdde0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
2 locks held by syz-executor/3169:
2 locks held by kworker/R-wg-cr/3354:
3 locks held by kworker/u9:2/3379:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f800ce07bd0 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
1 lock held by kworker/R-wg-cr/3408:
 #0: ffffffff8828d7a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2734 [inline]
 #0: ffffffff8828d7a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x73e/0xc72 kernel/workqueue.c:3533
2 locks held by kworker/1:3/3867:
2 locks held by kworker/1:4/3868:
3 locks held by kworker/1:5/3959:
2 locks held by kworker/1:8/4012:
2 locks held by kworker/1:9/4032:
2 locks held by kworker/1:10/4091:
1 lock held by syz.1.158/4294:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
2 locks held by syz-executor/4339:
2 locks held by kworker/1:0/4433:
2 locks held by kworker/R-wg-cr/4449:
3 locks held by kworker/u9:6/4475:
1 lock held by syz.0.183/4641:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
2 locks held by kworker/1:7/4708:
3 locks held by kworker/1:12/5048:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80074518>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff80003206>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8005fa4c>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8005fa4c>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff8005fae0>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86206bf4>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86206eac>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff80080416>] arch_trigger_cpumask_backtrace+0x2c/0x3e arch/riscv/kernel/smp.c:348
[<ffffffff804ddfbc>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff804ddfbc>] check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
[<ffffffff804ddfbc>] watchdog+0xcf2/0x11de kernel/hung_task.c:399
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] 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: 4449 Comm: kworker/R-wg-cr Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
epc : finish_task_switch.isra.0+0x1f4/0x940 kernel/sched/core.c:5251
 ra : raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline]
 ra : finish_lock_switch kernel/sched/core.c:5131 [inline]
 ra : finish_task_switch.isra.0+0x1f0/0x940 kernel/sched/core.c:5249
epc : ffffffff80203200 ra : ffffffff802031fc sp : ffff8f8003e276d0
 gp : ffffffff89c1d3c0 tp : ffffaf801aa10000 t0 : 5c7bda2363811625
 t1 : fffff5ef0ddb15f8 t2 : 0000000000000029 s0 : ffff8f8003e27750
 s1 : 0000000000000000 a0 : 0000000000000001 a1 : ffffffff86842140
 a2 : 0000000000000006 a3 : 0000000000000001 a4 : 0000000000000001
 a5 : 000000000001a4cd a6 : ffffaf801aa10b78 a7 : 1ffff5f00354216f
 s2 : ffffaf806ed8afd8 s3 : ffffaf806ed8afc0 s4 : ffffaf806ed8bbc8
 s5 : ffffaf802dfdcec0 s6 : 0000000000000000 s7 : 0000000000000402
 s8 : ffffffff89c5c940 s9 : 1ffff5f00ddb1779 s10: ffffaf806ed8bb60
 s11: ffffaf802dfdcec0 t3 : ffffaf801aa10b30 t4 : fffff5ef0ddb15f8
 t5 : fffff5ef0ddb15f9 t6 : 000000000000000d
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80203200>] arch_local_irq_enable arch/riscv/include/asm/irqflags.h:21 [inline]
[<ffffffff80203200>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline]
[<ffffffff80203200>] finish_lock_switch kernel/sched/core.c:5131 [inline]
[<ffffffff80203200>] finish_task_switch.isra.0+0x1f4/0x940 kernel/sched/core.c:5249
[<ffffffff8624d1ea>] context_switch kernel/sched/core.c:5380 [inline]
[<ffffffff8624d1ea>] __schedule+0xe54/0x3d70 kernel/sched/core.c:6764
[<ffffffff862505d0>] preempt_schedule_common kernel/sched/core.c:6943 [inline]
[<ffffffff862505d0>] preempt_schedule+0xd2/0x1e2 kernel/sched/core.c:6967
[<ffffffff801591f8>] __local_bh_enable_ip+0x420/0x5e8 kernel/softirq.c:396
[<ffffffff830decdc>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff830decdc>] rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
[<ffffffff830decdc>] mod_peer_timer drivers/net/wireguard/timers.c:38 [inline]
[<ffffffff830decdc>] wg_timers_any_authenticated_packet_traversal+0x23c/0x3a6 drivers/net/wireguard/timers.c:215
[<ffffffff830e1b16>] wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline]
[<ffffffff830e1b16>] wg_packet_tx_worker+0x10c/0x766 drivers/net/wireguard/send.c:276
[<ffffffff801b3668>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3236
[<ffffffff801b59b8>] process_scheduled_works kernel/workqueue.c:3317 [inline]
[<ffffffff801b59b8>] rescuer_thread+0x56e/0xc72 kernel/workqueue.c:3494
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327