Warning: Permanently added '10.128.15.219' (ECDSA) to the list of known hosts. syzkaller login: [ 832.699071][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 832.699232][ T8486] IPVS: ftp: loaded support on port[0] = 21 [ 832.725322][ T8487] IPVS: ftp: loaded support on port[0] = 21 [ 832.727532][ T8490] IPVS: ftp: loaded support on port[0] = 21 [ 832.735582][ T8485] IPVS: ftp: loaded support on port[0] = 21 [ 832.746947][ T8488] IPVS: ftp: loaded support on port[0] = 21 [ 832.955142][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 832.963267][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 832.993761][ T8644] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.017981][ T8471] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 833.024521][ T8644] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.060856][ T8648] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.084870][ T8648] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.094200][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 833.135923][ T8644] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.143901][ T8644] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.163089][ T8519] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.171592][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.180204][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 833.189787][ T8519] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.197248][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.220962][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 833.229826][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 833.237790][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 833.255070][ T8648] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.263256][ T8648] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 833.346565][ T8471] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 833.358390][ C0] hrtimer: interrupt took 32240 ns [ 833.376688][ T8648] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.389853][ T8648] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.614960][ T8648] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.626234][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.636387][ T8648] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.647045][ T8644] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 833.655345][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 833.676050][ T8471] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 833.693036][ T8644] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 833.752712][ T8258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 833.781725][ T8258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 834.209128][ T8258] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 834.231525][ T8693] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 834.877897][ T8693] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 835.282084][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 941.584597][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 941.591951][ C1] rcu: 1-....: (8948 ticks this GP) idle=93e/1/0x4000000000000000 softirq=10677/10677 fqs=5187 [ 941.603451][ C1] (t=10502 jiffies g=8565 q=1075) [ 941.608556][ C1] NMI backtrace for cpu 1 [ 941.612868][ C1] CPU: 1 PID: 8743 Comm: syz-executor345 Not tainted 5.10.0-rc7-syzkaller #0 [ 941.621812][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 941.631849][ C1] Call Trace: [ 941.635115][ C1] [ 941.637972][ C1] dump_stack+0x107/0x163 [ 941.642281][ C1] nmi_cpu_backtrace.cold+0x44/0xd7 [ 941.647463][ C1] ? lapic_can_unplug_cpu+0x80/0x80 [ 941.653097][ C1] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 941.659446][ C1] rcu_dump_cpu_stacks+0x1e3/0x21e [ 941.664544][ C1] rcu_sched_clock_irq.cold+0x472/0xee8 [ 941.670072][ C1] ? find_held_lock+0x2d/0x110 [ 941.674815][ C1] ? rcutree_dead_cpu+0x40/0x40 [ 941.679915][ C1] ? __raise_softirq_irqoff+0x93/0x1d0 [ 941.685443][ C1] update_process_times+0x77/0xd0 [ 941.690527][ C1] tick_sched_handle+0x9b/0x180 [ 941.695355][ C1] tick_sched_timer+0x1d1/0x2a0 [ 941.700182][ C1] ? can_stop_idle_tick+0x290/0x290 [ 941.705358][ C1] __hrtimer_run_queues+0x1ce/0xea0 [ 941.710651][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 941.716785][ C1] ? ktime_get_update_offsets_now+0x249/0x320 [ 941.722836][ C1] hrtimer_interrupt+0x334/0x940 [ 941.727882][ C1] __sysvec_apic_timer_interrupt+0x146/0x540 [ 941.733953][ C1] sysvec_apic_timer_interrupt+0x48/0x100 [ 941.739827][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 941.745873][ C1] RIP: 0010:page_frag_free+0x38/0x1a0 [ 941.751482][ C1] Code: 48 b8 00 00 00 00 00 ea ff ff 48 c1 e5 06 48 01 c5 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 08 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 37 01 00 00 48 8b 45 08 be 04 00 00 00 48 8d 50 ff a8 01 48 [ 941.771183][ C1] RSP: 0018:ffffc90000d90c28 EFLAGS: 00000246 [ 941.777233][ C1] RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff8130c470 [ 941.785185][ C1] RDX: 1ffffd4000097879 RSI: ffffffff8130c47a RDI: ffffea00004bc3c8 [ 941.793138][ C1] RBP: ffffea00004bc3c0 R08: 0000000000000000 R09: ffffffff8cecae4f [ 941.801438][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 941.809395][ C1] R13: ffff888012f0f000 R14: 0000000000000000 R15: ffff888012f0f0f0 [ 941.817705][ C1] ? __phys_addr+0x90/0x110 [ 941.822191][ C1] ? __phys_addr+0x9a/0x110 [ 941.826851][ C1] ? page_frag_free+0x7/0x1a0 [ 941.831512][ C1] skb_release_data+0x51c/0x910 [ 941.836350][ C1] consume_skb+0xc2/0x160 [ 941.840661][ C1] mac80211_hwsim_tx_frame+0x157/0x1e0 [ 941.846102][ C1] mac80211_hwsim_beacon_tx+0x4ba/0x910 [ 941.851637][ C1] __iterate_interfaces+0x1e5/0x520 [ 941.856993][ C1] ? mac80211_hwsim_tx_frame+0x1e0/0x1e0 [ 941.862608][ C1] ? mac80211_hwsim_tx_frame+0x1e0/0x1e0 [ 941.868226][ C1] ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 [ 941.875246][ C1] ? mac80211_hwsim_addr_match+0x180/0x180 [ 941.881035][ C1] mac80211_hwsim_beacon+0xd5/0x1a0 [ 941.886214][ C1] ? mac80211_hwsim_addr_match+0x180/0x180 [ 941.892003][ C1] __hrtimer_run_queues+0x693/0xea0 [ 941.897283][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 941.903417][ C1] ? ktime_get_update_offsets_now+0x249/0x320 [ 941.909475][ C1] hrtimer_run_softirq+0x17b/0x360 [ 941.914569][ C1] __do_softirq+0x2a0/0x9f6 [ 941.919055][ C1] asm_call_irq_on_stack+0xf/0x20 [ 941.924174][ C1] [ 941.927095][ C1] do_softirq_own_stack+0xaa/0xd0 [ 941.932102][ C1] irq_exit_rcu+0x132/0x200 [ 941.936762][ C1] sysvec_apic_timer_interrupt+0x4d/0x100 [ 941.942584][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 941.948547][ C1] RIP: 0010:__schedule+0x12c/0x2130 [ 941.953897][ C1] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 7d 1a 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b 45 18 48 89 c1 48 c1 e9 03 80 3c 11 00 <0f> 85 43 1a 00 00 48 81 38 9d 6e ac 57 0f 85 c5 1f 00 00 49 8d 45 [ 941.973922][ C1] RSP: 0018:ffffc900022af588 EFLAGS: 00000246 [ 941.980057][ C1] RAX: ffffc900022a8000 RBX: 0000000000000001 RCX: 1ffff92000455000 [ 941.988190][ C1] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88802fb0ced8 [ 941.996146][ C1] RBP: ffffc900022af650 R08: ffffffff8d6dbd84 R09: ffffffff8d6dbd88 [ 942.004145][ C1] R10: 0000000000082081 R11: 0000000000000001 R12: ffff8880b9f34980 [ 942.012099][ C1] R13: ffff88802fb0cec0 R14: ffff8880b9f34980 R15: 0000000000034980 [ 942.020068][ C1] ? __schedule+0x7e/0x2130 [ 942.024557][ C1] ? preempt_schedule_thunk+0x16/0x18 [ 942.029912][ C1] ? io_schedule_timeout+0x140/0x140 [ 942.035178][ C1] ? preempt_schedule_thunk+0x16/0x18 [ 942.040533][ C1] ? preempt_schedule_thunk+0x16/0x18 [ 942.045884][ C1] preempt_schedule_common+0x45/0xc0 [ 942.051328][ C1] preempt_schedule_thunk+0x16/0x18 [ 942.056603][ C1] unwind_next_frame+0xe54/0x1f90 [ 942.061615][ C1] ? kasan_set_track+0x1c/0x30 [ 942.066536][ C1] ? get_stack_info_noinstr+0x14/0x110 [ 942.072067][ C1] ? deref_stack_reg+0x150/0x150 [ 942.077011][ C1] ? __unwind_start+0x51b/0x800 [ 942.081873][ C1] ? create_prof_cpu_mask+0x20/0x20 [ 942.087051][ C1] arch_stack_walk+0x7d/0xe0 [ 942.091887][ C1] ? kmem_cache_free+0x82/0x350 [ 942.096809][ C1] ? kasan_set_free_info+0x1b/0x30 [ 942.102074][ C1] ? kmem_cache_free+0x82/0x350 [ 942.106991][ C1] stack_trace_save+0x8c/0xc0 [ 942.111652][ C1] ? stack_trace_consume_entry+0x160/0x160 [ 942.117449][ C1] kasan_save_stack+0x1b/0x40 [ 942.122105][ C1] ? kasan_save_stack+0x1b/0x40 [ 942.126930][ C1] ? kasan_set_track+0x1c/0x30 [ 942.131680][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 942.137688][ C1] ? lock_chain_count+0x20/0x20 [ 942.142640][ C1] ? find_held_lock+0x2d/0x110 [ 942.147389][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 942.153273][ C1] ? mark_held_locks+0x9f/0xe0 [ 942.158050][ C1] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 942.163972][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 942.169242][ C1] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 942.175202][ C1] ? debug_check_no_obj_freed+0x20c/0x420 [ 942.180901][ C1] kasan_set_track+0x1c/0x30 [ 942.185481][ C1] kasan_set_free_info+0x1b/0x30 [ 942.190576][ C1] __kasan_slab_free+0x102/0x140 [ 942.195539][ C1] slab_free_freelist_hook+0x5d/0x150 [ 942.200900][ C1] ? unlink_anon_vmas+0x16e/0x830 [ 942.206081][ C1] kmem_cache_free+0x82/0x350 [ 942.210752][ C1] unlink_anon_vmas+0x16e/0x830 [ 942.215765][ C1] free_pgtables+0x1ab/0x2f0 [ 942.220525][ C1] exit_mmap+0x2c0/0x530 [ 942.224792][ C1] ? __ia32_sys_remap_file_pages+0x150/0x150 [ 942.230763][ C1] ? __khugepaged_exit+0x314/0x3f0 [ 942.236030][ C1] __mmput+0x122/0x470 [ 942.240289][ C1] mmput+0x53/0x60 [ 942.243993][ C1] do_exit+0xa72/0x29b0 [ 942.248138][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 942.253500][ C1] ? io_schedule_timeout+0x140/0x140 [ 942.258773][ C1] do_group_exit+0x125/0x310 [ 942.263347][ C1] __x64_sys_exit_group+0x3a/0x50 [ 942.268441][ C1] do_syscall_64+0x2d/0x70 [ 942.272854][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 942.278818][ C1] RIP: 0033:0x441a38 [ 942.282691][ C1] Code: Unable to access opcode bytes at RIP 0x441a0e. [ 942.289528][ C1] RSP: 002b:00007ffc23890f28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 942.297937][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441a38 [ 942.306249][ C1] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 942.314214][ C1] RBP: 00000000004c80d0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 942.322167][ C1] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001 [ 942.330133][ C1] R13: 00000000006dc1e0 R14: 000000000000000d R15: 0000000000000004