[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.15.206' (ECDSA) to the list of known hosts.
syzkaller login: [ 889.007038][ T8500] IPVS: ftp: loaded support on port[0] = 21
[ 889.010399][ T8495] IPVS: ftp: loaded support on port[0] = 21
[ 889.014992][ T8498] IPVS: ftp: loaded support on port[0] = 21
[ 889.021728][ T8493] IPVS: ftp: loaded support on port[0] = 21
[ 889.037253][ T8499] IPVS: ftp: loaded support on port[0] = 21
[ 889.045525][ T8497] IPVS: ftp: loaded support on port[0] = 21
[ 889.273862][ T8525] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.287608][ T8525] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.303040][ T8529] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.311085][ T8529] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.320294][ T8655] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 889.340758][ T8655] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 889.360529][ T263] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.381543][ T263] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.390373][ T8655] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 889.424759][ T8529] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.458428][ T8529] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.476914][ T8655] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 889.497947][ T8525] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.497967][ T8529] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.497991][ T8529] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.515526][ T8525] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.522122][ T263] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.552829][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
executing program
[ 889.573351][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 889.577048][ T263] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.602371][ C0] hrtimer: interrupt took 30400 ns
[ 889.613167][ T8709] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.622568][ T8529] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.641898][ T8525] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.657765][ T8525] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.665234][ T8529] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.674096][ T8709] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.700874][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 889.729655][ T8709] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 889.741225][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 889.779298][ T8709] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 889.799796][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
executing program
executing program
executing program
[ 889.826875][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 889.846157][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 889.865189][ T263] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
executing program
[ 889.895803][ T263] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
executing program
executing program
[ 890.180717][ T3079] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
executing program
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[ 1118.062373][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU
[ 1118.069430][ C1] rcu: 1-....: (10048 ticks this GP) idle=cde/1/0x4000000000000000 softirq=10858/10860 fqs=191
[ 1118.080202][ C1] (t=10500 jiffies g=8689 q=82)
[ 1118.085146][ C1] NMI backtrace for cpu 1
[ 1118.089489][ C1] CPU: 1 PID: 8879 Comm: syz-executor587 Not tainted 5.10.0-rc7-syzkaller #0
[ 1118.098403][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1118.108472][ C1] Call Trace:
[ 1118.111771][ C1]
[ 1118.114644][ C1] dump_stack+0x107/0x163
[ 1118.118967][ C1] nmi_cpu_backtrace.cold+0x44/0xd7
[ 1118.124159][ C1] ? lapic_can_unplug_cpu+0x80/0x80
[ 1118.129351][ C1] nmi_trigger_cpumask_backtrace+0x1b3/0x230
[ 1118.135322][ C1] rcu_dump_cpu_stacks+0x1e3/0x21e
[ 1118.140431][ C1] rcu_sched_clock_irq.cold+0x472/0xee8
[ 1118.145971][ C1] ? do_raw_spin_unlock+0x171/0x230
[ 1118.151158][ C1] ? rcutree_dead_cpu+0x40/0x40
[ 1118.155998][ C1] ? timekeeping_advance+0x6f8/0xa40
[ 1118.161281][ C1] ? __raise_softirq_irqoff+0x93/0x1d0
[ 1118.166733][ C1] update_process_times+0x77/0xd0
[ 1118.171748][ C1] tick_sched_handle+0x9b/0x180
[ 1118.176588][ C1] tick_sched_timer+0x1d1/0x2a0
[ 1118.181428][ C1] ? can_stop_idle_tick+0x290/0x290
[ 1118.186617][ C1] __hrtimer_run_queues+0x1ce/0xea0
[ 1118.191822][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80
[ 1118.197882][ C1] ? ktime_get_update_offsets_now+0x249/0x320
[ 1118.203942][ C1] hrtimer_interrupt+0x334/0x940
[ 1118.208905][ C1] __sysvec_apic_timer_interrupt+0x146/0x540
[ 1118.215238][ C1] sysvec_apic_timer_interrupt+0x48/0x100
[ 1118.220974][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 1118.227206][ C1] RIP: 0010:__read_once_word_nocheck+0x3/0x10
[ 1118.233260][ C1] Code: 48 c7 c7 60 64 1b 8b e8 1b ea 9e 02 e9 60 fb ff ff e8 11 b4 81 00 e9 cf fb ff ff cc cc cc cc cc cc cc cc cc cc cc cc 48 8b 07 66 90 66 2e 0f 1f 84 00 00 00 00 00 41 57 89 d0 41 56 41 55 41
[ 1118.253110][ C1] RSP: 0018:ffffc90000d90640 EFLAGS: 00000246
[ 1118.259254][ C1] RAX: ffffffff8126823a RBX: ffffc90000d90798 RCX: ffffc90000d90798
[ 1118.267219][ C1] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffc9000268f5e8
[ 1118.275178][ C1] RBP: ffffc9000268f5e8 R08: 0000000000000000 R09: ffffffff8df5db76
[ 1118.283225][ C1] R10: 0000000000082081 R11: 0000000000000001 R12: ffffc90000d90750
[ 1118.291446][ C1] R13: ffffc90000d89000 R14: ffffc90000d907a0 R15: ffffc90000d90750
[ 1118.299419][ C1] ? do_softirq_own_stack+0xaa/0xd0
[ 1118.304895][ C1] deref_stack_reg+0xee/0x150
[ 1118.309738][ C1] unwind_next_frame+0xc3b/0x1f90
[ 1118.314838][ C1] ? asm_call_irq_on_stack+0xf/0x20
[ 1118.320034][ C1] ? deref_stack_reg+0x150/0x150
[ 1118.325049][ C1] ? create_prof_cpu_mask+0x20/0x20
[ 1118.330240][ C1] ? create_prof_cpu_mask+0x20/0x20
[ 1118.335432][ C1] arch_stack_walk+0x7d/0xe0
[ 1118.340143][ C1] ? asm_call_irq_on_stack+0xf/0x20
[ 1118.345334][ C1] stack_trace_save+0x8c/0xc0
[ 1118.350090][ C1] ? stack_trace_consume_entry+0x160/0x160
[ 1118.355977][ C1] ? ring_buffer_wakeup+0x194/0x2b0
[ 1118.361163][ C1] ? lock_downgrade+0x6d0/0x6d0
[ 1118.366001][ C1] ? lapic_next_event+0x4d/0x80
[ 1118.370841][ C1] kasan_save_stack+0x1b/0x40
[ 1118.375507][ C1] ? kasan_save_stack+0x1b/0x40
[ 1118.380347][ C1] ? __kasan_kmalloc.constprop.0+0xc2/0xd0
[ 1118.386139][ C1] ? kmem_cache_alloc+0x1c6/0x440
[ 1118.391243][ C1] ? __build_skb+0x21/0x60
[ 1118.395652][ C1] ? __netdev_alloc_skb+0x20d/0x3f0
[ 1118.401057][ C1] ? __ieee80211_beacon_get+0xebe/0x1aa0
[ 1118.406884][ C1] ? ieee80211_beacon_get_tim+0x88/0x910
[ 1118.412507][ C1] ? mac80211_hwsim_beacon_tx+0x111/0x910
[ 1118.418213][ C1] ? __iterate_interfaces+0x1e5/0x520
[ 1118.423597][ C1] ? ieee80211_iterate_active_interfaces_atomic+0x8d/0x170
[ 1118.430781][ C1] ? mac80211_hwsim_beacon+0xd5/0x1a0
[ 1118.436144][ C1] ? __hrtimer_run_queues+0x693/0xea0
[ 1118.441678][ C1] ? hrtimer_run_softirq+0x17b/0x360
[ 1118.447127][ C1] ? __do_softirq+0x2a0/0x9f6
[ 1118.451792][ C1] ? asm_call_irq_on_stack+0xf/0x20
[ 1118.457240][ C1] ? kvm_sched_clock_read+0x14/0x40
[ 1118.462429][ C1] ? sched_clock+0x2a/0x40
[ 1118.466836][ C1] ? sched_clock_cpu+0x18/0x1f0
[ 1118.471687][ C1] ? irqtime_account_irq+0x17e/0x2d0
[ 1118.476961][ C1] ? asm_sysvec_irq_work+0x12/0x20
[ 1118.482064][ C1] ? lockdep_hardirqs_on+0x79/0x100
[ 1118.487254][ C1] ? asm_sysvec_irq_work+0x12/0x20
[ 1118.492392][ C1] ? kasan_save_stack+0x2/0x40
[ 1118.497323][ C1] __kasan_kmalloc.constprop.0+0xc2/0xd0
[ 1118.502951][ C1] kmem_cache_alloc+0x1c6/0x440
[ 1118.507792][ C1] __build_skb+0x21/0x60
[ 1118.512010][ C1] __netdev_alloc_skb+0x20d/0x3f0
[ 1118.517078][ C1] __ieee80211_beacon_get+0xebe/0x1aa0
[ 1118.522518][ C1] ? ieee80211_set_beacon_cntdwn+0x620/0x620
[ 1118.528469][ C1] ? kill_fasync+0x18/0x460
[ 1118.532950][ C1] ? kvm_sched_clock_read+0x14/0x40
[ 1118.538265][ C1] ? sched_clock+0x2a/0x40
[ 1118.542656][ C1] ? sched_clock_cpu+0x18/0x1f0
[ 1118.547498][ C1] ieee80211_beacon_get_tim+0x88/0x910
[ 1118.552929][ C1] ? ieee80211_beacon_get_template+0x30/0x30
[ 1118.559054][ C1] ? asm_sysvec_irq_work+0x12/0x20
[ 1118.564144][ C1] mac80211_hwsim_beacon_tx+0x111/0x910
[ 1118.569834][ C1] ? __iterate_interfaces+0x12b/0x520
[ 1118.575272][ C1] ? __iterate_interfaces+0x139/0x520
[ 1118.580704][ C1] __iterate_interfaces+0x1e5/0x520
[ 1118.585964][ C1] ? mac80211_hwsim_tx_frame+0x1e0/0x1e0
[ 1118.591656][ C1] ? mac80211_hwsim_tx_frame+0x1e0/0x1e0
[ 1118.597261][ C1] ieee80211_iterate_active_interfaces_atomic+0x8d/0x170
[ 1118.604254][ C1] ? mac80211_hwsim_addr_match+0x180/0x180
[ 1118.610121][ C1] mac80211_hwsim_beacon+0xd5/0x1a0
[ 1118.615290][ C1] ? mac80211_hwsim_addr_match+0x180/0x180
[ 1118.621068][ C1] __hrtimer_run_queues+0x693/0xea0
[ 1118.626243][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80
[ 1118.632195][ C1] ? ktime_get_update_offsets_now+0x249/0x320
[ 1118.638236][ C1] hrtimer_run_softirq+0x17b/0x360
[ 1118.643320][ C1] __do_softirq+0x2a0/0x9f6
[ 1118.647799][ C1] asm_call_irq_on_stack+0xf/0x20
[ 1118.652880][ C1]
[ 1118.655881][ C1] do_softirq_own_stack+0xaa/0xd0
[ 1118.660881][ C1] irq_exit_rcu+0x132/0x200
[ 1118.665355][ C1] sysvec_apic_timer_interrupt+0x4d/0x100
[ 1118.671046][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 1118.677100][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40
[ 1118.682878][ C1] Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 3e 29 6e f8 48 89 ef e8 c6 dd 6e f8 e8 81 c7 8d f8 fb bf 01 00 00 00 d6 49 63 f8 65 8b 05 ff f3 19 77 85 c0 74 02 5d c3 e8 9b 49 18
[ 1118.702561][ C1] RSP: 0018:ffffc9000268f6e8 EFLAGS: 00000202
[ 1118.708689][ C1] RAX: 00000000002f71b3 RBX: ffff888020b23480 RCX: 1ffffffff19d8e91
[ 1118.716633][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
[ 1118.724837][ C1] RBP: ffff8880b9f34940 R08: 0000000000000001 R09: 0000000000000001
[ 1118.732781][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b9f34940
[ 1118.740725][ C1] R13: ffff88801d72b480 R14: 0000000000000000 R15: 0000000000000001
[ 1118.753562][ C1] ? _raw_spin_unlock_irq+0x1f/0x40
[ 1118.758907][ C1] finish_task_switch+0x150/0x7a0
[ 1118.763903][ C1] ? finish_task_switch+0x122/0x7a0
[ 1118.769093][ C1] ? __switch_to+0x57c/0x1050
[ 1118.773747][ C1] __schedule+0x89b/0x2130
[ 1118.778139][ C1] ? io_schedule_timeout+0x140/0x140
[ 1118.783403][ C1] preempt_schedule_irq+0x4e/0x90
[ 1118.788400][ C1] irqentry_exit+0x7a/0xa0
[ 1118.792787][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 1118.798739][ C1] RIP: 0010:release_pages+0xfc/0x1690
[ 1118.804082][ C1] Code: 83 c6 08 4c 01 f8 48 89 44 24 10 e8 3e 13 da ff 49 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 f9 11 00 00 49 8b 45 08 <31> ff 48 89 c3 48 89 44 24 08 83 e3 01 48 89 de e8 7f 0b da ff 48
[ 1118.823658][ C1] RSP: 0018:ffffc9000268f8f0 EFLAGS: 00000246
[ 1118.829695][ C1] RAX: ffffea0000ae9a88 RBX: 00000000000000b6 RCX: ffffffff8195f4f3
[ 1118.837727][ C1] RDX: ffff888020b23480 RSI: ffffffff8195f132 RDI: ffffea0000b79c08
[ 1118.845671][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffea0000ae9ab7
[ 1118.853615][ C1] R10: 00000000000000b6 R11: 0000000000000000 R12: 0000000000000038
[ 1118.861560][ C1] R13: ffffea0000b79c00 R14: ffff888013e8d1d8 R15: dffffc0000000000
[ 1118.869528][ C1] ? release_pages+0x4a3/0x1690
[ 1118.874351][ C1] ? release_pages+0xe2/0x1690
[ 1118.879091][ C1] ? free_swap_cache+0xca/0x300
[ 1118.883918][ C1] ? put_devmap_managed_page+0x160/0x160
[ 1118.889541][ C1] tlb_finish_mmu+0x165/0x8c0
[ 1118.894193][ C1] exit_mmap+0x2d1/0x530
[ 1118.898409][ C1] ? __ia32_sys_remap_file_pages+0x150/0x150
[ 1118.904563][ C1] ? __khugepaged_exit+0x2d9/0x3f0
[ 1118.909650][ C1] __mmput+0x122/0x470
[ 1118.913709][ C1] mmput+0x53/0x60
[ 1118.917404][ C1] do_exit+0xa72/0x29b0
[ 1118.921552][ C1] ? find_held_lock+0x2d/0x110
[ 1118.926462][ C1] ? mm_update_next_owner+0x7a0/0x7a0
[ 1118.931822][ C1] ? get_signal+0x34f/0x1f10
[ 1118.936386][ C1] ? lock_downgrade+0x6d0/0x6d0
[ 1118.941315][ C1] do_group_exit+0x125/0x310
[ 1118.945968][ C1] get_signal+0x42a/0x1f10
[ 1118.950366][ C1] arch_do_signal+0x82/0x2390
[ 1118.955203][ C1] ? ktime_get+0x154/0x1e0
[ 1118.959769][ C1] ? lapic_next_event+0x4d/0x80
[ 1118.964614][ C1] ? clockevents_program_event+0x12b/0x350
[ 1118.970394][ C1] ? copy_siginfo_to_user32+0xa0/0xa0
[ 1118.975756][ C1] ? __do_sys_futex+0x2a2/0x470
[ 1118.980859][ C1] ? kvm_sched_clock_read+0x14/0x40
[ 1118.986033][ C1] ? do_futex+0x1a60/0x1a60
[ 1118.990517][ C1] exit_to_user_mode_prepare+0x100/0x1a0
[ 1118.996127][ C1] syscall_exit_to_user_mode+0x38/0x260
[ 1119.001651][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1119.007514][ C1] RIP: 0033:0x447ad9
[ 1119.011378][ C1] Code: Unable to access opcode bytes at RIP 0x447aaf.
[ 1119.018366][ C1] RSP: 002b:00007f0e9fe7adb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[ 1119.026841][ C1] RAX: fffffffffffffe00 RBX: 00000000006dcc28 RCX: 0000000000447ad9
[ 1119.034802][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dcc28
[ 1119.042834][ C1] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000
[ 1119.050780][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c
[ 1119.059420][ C1] R13: 00007ffd8baf43cf R14: 00007f0e9fe7b9c0 R15: 0000000000000064
executing program
executing program
executing program
executing program
executing program