INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. [ 743.028736] INFO: rcu_preempt self-detected stall on CPU [ 743.034384] 0-...: (1 GPs behind) idle=22b/140000000000001/0 softirq=9324/9332 fqs=12497 [ 743.042754] (t=12500 jiffies g=996 c=995 q=801) [ 743.047690] Task dump for CPU 0: [ 743.051029] syz-executor994 R running task 28432 3975 3938 0x0000000c [ 743.058504] 0000000000000f62 90a48b52b8005eeb ffff8801db206fe0 ffffffff8140c8fc [ 743.066513] ffff8801db21f4c0 0000000000000000 dffffc0000000000 ffffffff844bef00 [ 743.074515] ffffffff844bef84 ffff8801db207000 ffffffff8140cb87 ffffffff844bef48 [ 743.082495] Call Trace: [ 743.085048] [] sched_show_task+0x2cb/0x2d6 [ 743.091735] [] dump_cpu_task+0x79/0x7e [ 743.097255] [] rcu_dump_cpu_stacks+0x150/0x164 [ 743.103462] [] rcu_check_callbacks.cold.75+0x5c3/0xd20 [ 743.110416] [] ? __lock_is_held+0xa2/0xf0 [ 743.116234] [] update_process_times+0x3a/0x70 [ 743.122388] [] tick_sched_handle.isra.15+0x55/0xf0 [ 743.128949] [] tick_sched_timer+0x72/0x120 [ 743.134810] [] ? tick_sched_do_timer+0xa0/0xa0 [ 743.141016] [] __hrtimer_run_queues+0x3ad/0x1000 [ 743.147398] [] ? retrigger_next_event+0x1c0/0x1c0 [ 743.153927] [] ? kvm_clock_read+0x23/0x40 [ 743.159698] [] ? kvm_clock_get_cycles+0x9/0x10 [ 743.165901] [] ? hrtimer_interrupt+0x12d/0x430 [ 743.172103] [] hrtimer_interrupt+0x1b1/0x430 [ 743.178135] [] local_apic_timer_interrupt+0x74/0xa0 [ 743.184820] [] smp_apic_timer_interrupt+0x7c/0xa0 [ 743.191300] [] apic_timer_interrupt+0xa0/0xb0 [ 743.197446] [] ? _decode_session6+0xb72/0x14d0 [ 743.203693] [] ? __sanitizer_cov_trace_pc+0x4b/0x50 [ 743.210332] [] _decode_session6+0xb72/0x14d0 [ 743.216390] [] __xfrm_decode_session+0x69/0x100 [ 743.222717] [] icmpv6_route_lookup+0x2ce/0x440 [ 743.228948] [] ? icmpv6_getfrag+0x180/0x180 [ 743.234953] [] ? inet_getpeer+0x43a/0x6f0 [ 743.240725] [] icmp6_send+0xee9/0x1b80 [ 743.246237] [] ? icmpv6_push_pending_frames+0x530/0x530 [ 743.253283] [] ? __lock_acquire+0xa86/0x5270 [ 743.259359] [] ? fib_rules_lookup+0x30e/0x8b0 [ 743.265478] [] ? debug_check_no_locks_freed+0x210/0x210 [ 743.272465] [] ? fib6_rule_lookup+0xf7/0x1a0 [ 743.278523] [] ? ip6_pol_route.isra.54+0x1550/0x1550 [ 743.285249] [] ? fib6_rule_match+0x470/0x470 [ 743.291279] [] ? ip6_pol_route.isra.54+0x1550/0x1550 [ 743.298005] [] ? icmpv6_push_pending_frames+0x530/0x530 [ 743.305048] [] icmpv6_send+0xb1/0x1b0 [ 743.310472] [] ? inet6_unregister_icmp_sender+0x40/0x40 [ 743.317461] [] ip6_pkt_drop+0x16d/0x430 [ 743.323056] [] ip6_pkt_discard+0x1c/0x20 [ 743.328754] [] ip6_rcv_finish+0x13d/0x640 [ 743.334546] [] ? sk_receive_skb+0x940/0x940 [ 743.340492] [] ipv6_rcv+0x10cb/0x1cd0 [ 743.345933] [] ? ipv6_rcv+0xf8/0x1cd0 [ 743.351365] [] ? ip6_input_finish+0x1550/0x1550 [ 743.357663] [] ? ip6_make_skb+0x400/0x400 [ 743.363441] [] ? ip6_input_finish+0x1550/0x1550 [ 743.369789] [] __netif_receive_skb_core+0x12d6/0x2940 [ 743.376607] [] ? dev_cpu_callback+0x660/0x660 [ 743.382732] [] ? debug_check_no_locks_freed+0x210/0x210 [ 743.389717] [] __netif_receive_skb+0x5b/0x1b0 [ 743.396270] [] process_backlog+0x216/0x6a0 [ 743.402130] [] ? process_backlog+0x1b2/0x6a0 [ 743.408158] [] net_rx_action+0x3a2/0xdb0 [ 743.413840] [] ? napi_complete_done+0x1f0/0x1f0 [ 743.420189] [] ? check_preemption_disabled+0x3b/0x170 [ 743.427020] [] __do_softirq+0x22c/0xa1a [ 743.432619] [] do_softirq_own_stack+0x1c/0x30 [ 743.438745] [] do_softirq.part.16+0x54/0x60 [ 743.445440] [] do_softirq+0x19/0x20 [ 743.450696] [] netif_rx_ni+0xec/0x3a0 [ 743.456158] [] tun_get_user+0xbe7/0x2410 [ 743.461848] [] ? tun_net_xmit+0xe60/0xe60 [ 743.467618] [] ? __tun_get+0x126/0x230 [ 743.473137] [] tun_chr_write_iter+0xd5/0x190 [ 743.479206] [] __vfs_write+0x30d/0x3f0 [ 743.484715] [] ? __vfs_read+0x3e0/0x3e0 [ 743.490347] [] ? sock_do_ioctl+0x78/0xb0 [ 743.496055] [] ? avc_policy_seqno+0x9/0x20 [ 743.501924] [] ? selinux_file_permission+0x2f2/0x450 [ 743.508654] [] ? rw_verify_area+0x100/0x300 [ 743.514617] [] vfs_write+0x191/0x4e0 [ 743.519963] [] SyS_write+0xd9/0x1c0 [ 743.525219] [] ? SyS_read+0x1c0/0x1c0 [ 743.530668] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 743.537146] [] entry_SYSCALL_64_fastpath+0x22/0x9e