INFO: task kworker/u10:0:27 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:0   state:D stack:0     pid:27    tgid:27    ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff86388df4>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86388df4>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8638bf2a>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8638bf2a>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863a0702>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff8638dab2>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff8638dab2>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff8638dce2>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8638dce2>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80373490>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff80713e5e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805a4576>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805a4576>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bb13c>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801be24c>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801be24c>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
3 locks held by kworker/u10:0/27:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f80001d7b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec5c0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
1 lock held by khungtaskd/37:
 #0: ffffffff883dc3a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
3 locks held by kworker/u10:3/53:
6 locks held by kworker/0:2/822:
1 lock held by klogd/2987:
2 locks held by getty/3151:
 #0: ffffaf80185b60a0 (&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+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
2 locks held by syz-executor/3187:
2 locks held by kworker/0:1/3190:
3 locks held by syz-executor/3200:
3 locks held by syz-executor/3201:
2 locks held by kworker/0:3/3814:
3 locks held by kworker/1:3/3898:
4 locks held by kworker/0:4/3899:
2 locks held by kworker/0:5/3900:
2 locks held by kworker/0:0/4434:
2 locks held by kworker/0:6/4622:
2 locks held by kworker/0:8/4658:
2 locks held by kworker/0:10/4668:
2 locks held by kworker/0:13/4702:
2 locks held by kworker/0:14/4705:
2 locks held by kworker/0:15/4720:
2 locks held by kworker/0:16/4728:
2 locks held by kworker/0:17/4789:
2 locks held by kworker/0:18/4807:
2 locks held by syz-executor/4843:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80078a80>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000327a>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff80061012>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff80061012>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff800610a6>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86340a50>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86340d08>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff800847ac>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff804ea4a8>] trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
[<ffffffff804ea4a8>] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
[<ffffffff804ea4a8>] watchdog+0xcea/0x1618 kernel/hung_task.c:470
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
epc : __sanitizer_cov_trace_const_cmp2+0x0/0x1c kernel/kcov.c:306
 ra : xfrm_lookup_with_ifid+0x35a/0x20b2 net/xfrm/xfrm_policy.c:3233
epc : ffffffff804e7ea4 ra : ffffffff85a2865a sp : ffff8f8000106910
 gp : ffffffff89c4eee0 tp : ffffaf8012ae3480 t0 : ffff8f8000106bc8
 t1 : fffffffff2f20000 t2 : fffffffff2f20000 s0 : ffff8f8000106ac0
 s1 : ffff8f8000106a40 a0 : 0000000000000000 a1 : 0000000000000002
 a2 : 0000000000f00000 a3 : ffffffff85a28624 a4 : 1ffff5f00669ee27
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : fffffffff1f1f1f1
 s2 : ffffaf80334f7100 s3 : 0000000000000000 s4 : ffffaf8012371fc0
 s5 : 0000000000000000 s6 : ffff8f8000106b90 s7 : 0000000000000002
 s8 : ffff8f80001069e0 s9 : 0000000000000002 s10: 1ffff5f00669ee21
 s11: 1ffff1f000020d2c t3 : ffffaf80334f7108 t4 : 0000000000001fff
 t5 : 00000000000000c8 t6 : ffff8f8000106a14
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff804e7ea4>] __sanitizer_cov_trace_const_cmp2+0x0/0x1c kernel/kcov.c:302
[<ffffffff85a2a3e6>] xfrm_lookup+0x34/0x46 net/xfrm/xfrm_policy.c:3336
[<ffffffff85965948>] ip_route_me_harder+0xce8/0x11a6 net/ipv4/netfilter.c:69
[<ffffffff85561b38>] synproxy_send_tcp.isra.0+0x2be/0x5d2 net/netfilter/nf_synproxy_core.c:431
[<ffffffff85563a84>] synproxy_send_client_synack+0x6dc/0x8be net/netfilter/nf_synproxy_core.c:484
[<ffffffff8563d3be>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff8563d3be>] nft_synproxy_do_eval+0x8ac/0xa52 net/netfilter/nft_synproxy.c:141
[<ffffffff8563d5c2>] nft_synproxy_eval+0x28/0x36 net/netfilter/nft_synproxy.c:247
[<ffffffff8556eeea>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff8556eeea>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff855cb0a8>] nft_do_chain_inet+0x180/0x316 net/netfilter/nft_chain_filter.c:161
[<ffffffff854a4250>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff854a4250>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff856c916e>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff856c916e>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff856c916e>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff856c7224>] dst_input include/net/dst.h:469 [inline]
[<ffffffff856c7224>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff856c94c2>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff85087e84>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff85088104>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff85089304>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff8508dc9e>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff8508eb82>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff8508eb82>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015c6d2>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff8015d61c>] run_ksoftirqd kernel/softirq.c:968 [inline]
[<ffffffff8015d61c>] run_ksoftirqd+0xce/0x144 kernel/softirq.c:960
[<ffffffff801f1f6c>] smpboot_thread_fn+0x420/0xc80 kernel/smpboot.c:164
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327