[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.202' (ECDSA) to the list of known hosts. syzkaller login: [ 307.374800][ T6577] chnl_net:caif_netlink_parms(): no params data found [ 307.448560][ T6577] bridge0: port 1(bridge_slave_0) entered blocking state [ 307.457383][ T6577] bridge0: port 1(bridge_slave_0) entered disabled state [ 307.466188][ T6577] device bridge_slave_0 entered promiscuous mode [ 307.475810][ T6577] bridge0: port 2(bridge_slave_1) entered blocking state [ 307.483674][ T6577] bridge0: port 2(bridge_slave_1) entered disabled state [ 307.493456][ T6577] device bridge_slave_1 entered promiscuous mode [ 307.522492][ T6577] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 307.533465][ T6577] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 307.567427][ T6577] team0: Port device team_slave_0 added [ 307.575230][ T6577] team0: Port device team_slave_1 added [ 307.602945][ T6577] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 307.609991][ T6577] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 307.636056][ T6577] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 307.648751][ T6577] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 307.655886][ T6577] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 307.681908][ T6577] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 307.720838][ T6577] device hsr_slave_0 entered promiscuous mode [ 307.728368][ T6577] device hsr_slave_1 entered promiscuous mode [ 307.862975][ T6577] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 307.875940][ T6577] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 307.893060][ T6577] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 307.905926][ T6577] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 307.935228][ T6577] bridge0: port 2(bridge_slave_1) entered blocking state [ 307.942504][ T6577] bridge0: port 2(bridge_slave_1) entered forwarding state [ 307.950738][ T6577] bridge0: port 1(bridge_slave_0) entered blocking state [ 307.958003][ T6577] bridge0: port 1(bridge_slave_0) entered forwarding state [ 308.008242][ T6577] 8021q: adding VLAN 0 to HW filter on device bond0 [ 308.022392][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 308.034385][ T1276] bridge0: port 1(bridge_slave_0) entered disabled state [ 308.045111][ T1276] bridge0: port 2(bridge_slave_1) entered disabled state [ 308.053575][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 308.067938][ T6577] 8021q: adding VLAN 0 to HW filter on device team0 [ 308.079267][ T2394] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 308.089245][ T2394] bridge0: port 1(bridge_slave_0) entered blocking state [ 308.096541][ T2394] bridge0: port 1(bridge_slave_0) entered forwarding state [ 308.110035][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 308.118837][ T1276] bridge0: port 2(bridge_slave_1) entered blocking state [ 308.125948][ T1276] bridge0: port 2(bridge_slave_1) entered forwarding state [ 308.144680][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 308.153369][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 308.167226][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 308.180504][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 308.193241][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 308.205073][ T6577] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 308.227855][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 308.235532][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 308.247712][ T6577] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 308.268053][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 308.290885][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 308.299294][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 308.308566][ T31] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 308.317404][ T6577] device veth0_vlan entered promiscuous mode [ 308.330310][ T6577] device veth1_vlan entered promiscuous mode [ 308.353403][ T2394] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 308.362149][ T2394] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 308.370952][ T2394] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 308.383950][ T6577] device veth0_macvtap entered promiscuous mode [ 308.395103][ T6577] device veth1_macvtap entered promiscuous mode [ 308.412621][ T6577] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 308.422525][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 308.432190][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 308.444627][ T6577] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 308.452622][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready executing program [ 308.462229][ T1276] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 308.476171][ T6577] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 308.485301][ T6577] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 308.495365][ T6577] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 308.504400][ T6577] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 441.869146][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [kworker/u4:4:1072] [ 441.877792][ C0] Modules linked in: [ 441.881691][ C0] irq event stamp: 191816 [ 441.886014][ C0] hardirqs last enabled at (191815): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 441.897008][ C0] hardirqs last disabled at (191816): [] sysvec_apic_timer_interrupt+0xb/0xc0 [ 441.907545][ C0] softirqs last enabled at (166722): [] wg_timers_handshake_initiated+0x1ab/0x300 [ 441.918456][ C0] softirqs last disabled at (166718): [] wg_timers_handshake_initiated+0x48/0x300 [ 441.930019][ C0] CPU: 0 PID: 1072 Comm: kworker/u4:4 Not tainted 5.15.0-rc5-syzkaller #0 [ 441.938587][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 441.948652][ C0] Workqueue: events_unbound toggle_allocation_gate [ 441.955250][ C0] RIP: 0010:smp_call_function_many_cond+0x452/0xc20 [ 441.961907][ C0] Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 10 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31 [ 441.981534][ C0] RSP: 0018:ffffc90004dbf9f8 EFLAGS: 00000293 [ 441.987612][ C0] RAX: 0000000000000000 RBX: ffff8880b9d367c0 RCX: 0000000000000000 [ 441.995590][ C0] RDX: ffff88801bfb5580 RSI: ffffffff816b9d80 RDI: 0000000000000003 [ 442.003568][ C0] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 [ 442.011633][ C0] R10: ffffffff816b9da6 R11: 0000000000000000 R12: ffffed10173a6cf9 [ 442.019612][ C0] R13: 0000000000000001 R14: ffff8880b9d367c8 R15: 0000000000000001 [ 442.027589][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 442.036532][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 442.043124][ C0] CR2: 00005555557a12c0 CR3: 000000000b68e000 CR4: 00000000003506f0 [ 442.051109][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 442.059169][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 442.067153][ C0] Call Trace: [ 442.070444][ C0] ? __text_poke+0x8c0/0x8c0 [ 442.075142][ C0] ? __text_poke+0x8c0/0x8c0 [ 442.079750][ C0] on_each_cpu_cond_mask+0x56/0xa0 [ 442.084871][ C0] ? kmem_cache_alloc+0xae/0x390 [ 442.089863][ C0] text_poke_bp_batch+0x1b3/0x560 [ 442.094902][ C0] ? mutex_lock_io_nested+0x1150/0x1150 [ 442.100505][ C0] ? alternatives_enable_smp+0xf0/0xf0 [ 442.105982][ C0] ? __jump_label_patch+0x159/0x1b0 [ 442.111198][ C0] ? arch_jump_label_transform_queue+0xa0/0x100 [ 442.117459][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 442.123763][ C0] ? __jump_label_update+0x351/0x400 [ 442.129123][ C0] text_poke_finish+0x16/0x30 [ 442.133812][ C0] arch_jump_label_transform_apply+0x13/0x20 [ 442.139803][ C0] jump_label_update+0x1d5/0x430 [ 442.144756][ C0] static_key_enable_cpuslocked+0x1b1/0x260 [ 442.150661][ C0] static_key_enable+0x16/0x20 [ 442.155439][ C0] toggle_allocation_gate+0x100/0x390 [ 442.160820][ C0] ? lock_release+0x720/0x720 [ 442.165586][ C0] ? wake_up_kfence_timer+0x20/0x20 [ 442.170812][ C0] process_one_work+0x9bf/0x16b0 [ 442.175886][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 442.181274][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 442.186222][ C0] ? _raw_spin_lock_irq+0x41/0x50 [ 442.191272][ C0] worker_thread+0x658/0x11f0 [ 442.195975][ C0] ? process_one_work+0x16b0/0x16b0 [ 442.201189][ C0] kthread+0x3e5/0x4d0 [ 442.205313][ C0] ? set_kthread_struct+0x130/0x130 [ 442.210543][ C0] ret_from_fork+0x1f/0x30 [ 442.215010][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 442.221684][ C0] CPU: 0 PID: 1072 Comm: kworker/u4:4 Tainted: G L 5.15.0-rc5-syzkaller #0 [ 442.231615][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 442.241674][ C0] Workqueue: events_unbound toggle_allocation_gate [ 442.248196][ C0] Call Trace: [ 442.251475][ C0] [ 442.254327][ C0] dump_stack_lvl+0xcd/0x134 [ 442.259033][ C0] panic+0x2b0/0x6dd [ 442.262954][ C0] ? __warn_printk+0xf3/0xf3 [ 442.267569][ C0] ? watchdog_timer_fn.cold+0x5/0x25 [ 442.272886][ C0] watchdog_timer_fn.cold+0x16/0x25 [ 442.278096][ C0] ? softlockup_fn+0xa0/0xa0 [ 442.282734][ C0] __hrtimer_run_queues+0x1c0/0xe50 [ 442.287981][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 442.293970][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 442.300059][ C0] hrtimer_interrupt+0x31c/0x790 [ 442.305022][ C0] __sysvec_apic_timer_interrupt+0x146/0x530 [ 442.311059][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 442.316708][ C0] [ 442.319644][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 442.325718][ C0] RIP: 0010:smp_call_function_many_cond+0x452/0xc20 [ 442.332408][ C0] Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 10 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31 [ 442.352022][ C0] RSP: 0018:ffffc90004dbf9f8 EFLAGS: 00000293 [ 442.358181][ C0] RAX: 0000000000000000 RBX: ffff8880b9d367c0 RCX: 0000000000000000 [ 442.366176][ C0] RDX: ffff88801bfb5580 RSI: ffffffff816b9d80 RDI: 0000000000000003 [ 442.374153][ C0] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 [ 442.382129][ C0] R10: ffffffff816b9da6 R11: 0000000000000000 R12: ffffed10173a6cf9 [ 442.390199][ C0] R13: 0000000000000001 R14: ffff8880b9d367c8 R15: 0000000000000001 [ 442.398187][ C0] ? smp_call_function_many_cond+0x476/0xc20 [ 442.404182][ C0] ? smp_call_function_many_cond+0x450/0xc20 [ 442.410178][ C0] ? smp_call_function_many_cond+0x450/0xc20 [ 442.416170][ C0] ? __text_poke+0x8c0/0x8c0 [ 442.420772][ C0] ? __text_poke+0x8c0/0x8c0 [ 442.425373][ C0] on_each_cpu_cond_mask+0x56/0xa0 [ 442.430497][ C0] ? kmem_cache_alloc+0xae/0x390 [ 442.435452][ C0] text_poke_bp_batch+0x1b3/0x560 [ 442.440499][ C0] ? mutex_lock_io_nested+0x1150/0x1150 [ 442.446151][ C0] ? alternatives_enable_smp+0xf0/0xf0 [ 442.451623][ C0] ? __jump_label_patch+0x159/0x1b0 [ 442.456941][ C0] ? arch_jump_label_transform_queue+0xa0/0x100 [ 442.463192][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 442.469457][ C0] ? __jump_label_update+0x351/0x400 [ 442.474762][ C0] text_poke_finish+0x16/0x30 [ 442.479446][ C0] arch_jump_label_transform_apply+0x13/0x20 [ 442.485451][ C0] jump_label_update+0x1d5/0x430 [ 442.490412][ C0] static_key_enable_cpuslocked+0x1b1/0x260 [ 442.496339][ C0] static_key_enable+0x16/0x20 [ 442.501116][ C0] toggle_allocation_gate+0x100/0x390 [ 442.506502][ C0] ? lock_release+0x720/0x720 [ 442.511190][ C0] ? wake_up_kfence_timer+0x20/0x20 [ 442.516417][ C0] process_one_work+0x9bf/0x16b0 [ 442.521376][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 442.526762][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 442.531708][ C0] ? _raw_spin_lock_irq+0x41/0x50 [ 442.536761][ C0] worker_thread+0x658/0x11f0 [ 442.541464][ C0] ? process_one_work+0x16b0/0x16b0 [ 442.546778][ C0] kthread+0x3e5/0x4d0 [ 442.550856][ C0] ? set_kthread_struct+0x130/0x130 [ 442.556068][ C0] ret_from_fork+0x1f/0x30 [ 443.652960][ C0] Shutting down cpus with NMI [ 443.658154][ C0] Kernel Offset: disabled [ 443.662563][ C0] Rebooting in 86400 seconds..