Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. [ 489.633614][ T8493] IPVS: ftp: loaded support on port[0] = 21 [ 489.729268][ T8493] chnl_net:caif_netlink_parms(): no params data found [ 489.787040][ T8493] bridge0: port 1(bridge_slave_0) entered blocking state [ 489.794803][ T8493] bridge0: port 1(bridge_slave_0) entered disabled state [ 489.802526][ T8493] device bridge_slave_0 entered promiscuous mode [ 489.811994][ T8493] bridge0: port 2(bridge_slave_1) entered blocking state [ 489.821225][ T8493] bridge0: port 2(bridge_slave_1) entered disabled state [ 489.829562][ T8493] device bridge_slave_1 entered promiscuous mode [ 489.849788][ T8493] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 489.860532][ T8493] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 489.885459][ T8493] team0: Port device team_slave_0 added [ 489.892623][ T8493] team0: Port device team_slave_1 added [ 489.911384][ T8493] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 489.918485][ T8493] 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. [ 489.944557][ T8493] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 489.957219][ T8493] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 489.964269][ T8493] 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. [ 489.990312][ T8493] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 490.018150][ T8493] device hsr_slave_0 entered promiscuous mode [ 490.024868][ T8493] device hsr_slave_1 entered promiscuous mode [ 490.129036][ T8493] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 490.139878][ T8493] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 490.150506][ T8493] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 490.163283][ T8493] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 490.189971][ T8493] bridge0: port 2(bridge_slave_1) entered blocking state [ 490.197395][ T8493] bridge0: port 2(bridge_slave_1) entered forwarding state [ 490.205391][ T8493] bridge0: port 1(bridge_slave_0) entered blocking state [ 490.212450][ T8493] bridge0: port 1(bridge_slave_0) entered forwarding state [ 490.258844][ T8493] 8021q: adding VLAN 0 to HW filter on device bond0 [ 490.272786][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 490.285517][ T8621] bridge0: port 1(bridge_slave_0) entered disabled state [ 490.294893][ T8621] bridge0: port 2(bridge_slave_1) entered disabled state [ 490.302707][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 490.316573][ T8493] 8021q: adding VLAN 0 to HW filter on device team0 [ 490.329419][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 490.338732][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 490.345877][ T8485] bridge0: port 1(bridge_slave_0) entered forwarding state [ 490.363512][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 490.372036][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 490.379268][ T8485] bridge0: port 2(bridge_slave_1) entered forwarding state [ 490.407927][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 490.417788][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 490.426537][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 490.435099][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 490.443634][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 490.454698][ T8493] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 490.474229][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 490.481604][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 490.497640][ T8493] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 490.526331][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 490.545168][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 490.554774][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 490.562532][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 490.571468][ T8493] device veth0_vlan entered promiscuous mode [ 490.583906][ T8493] device veth1_vlan entered promiscuous mode [ 490.606474][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 490.615487][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 490.624974][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 490.636490][ T8493] device veth0_macvtap entered promiscuous mode [ 490.648420][ T8493] device veth1_macvtap entered promiscuous mode [ 490.666919][ T8493] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 490.674755][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 490.685333][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 490.697725][ T8493] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 490.707511][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 490.717075][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 490.729983][ T8493] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 490.738987][ T8493] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 490.748618][ T8493] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 490.761178][ T8493] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 716.263184][ T1658] INFO: task kworker/0:1:8485 blocked for more than 143 seconds. [ 716.271072][ T1658] Not tainted 5.10.0-rc6-syzkaller #0 [ 716.280980][ T1658] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.290036][ T1658] task:kworker/0:1 state:D stack:27264 pid: 8485 ppid: 2 flags:0x00004000 [ 716.302054][ T1658] Workqueue: ipv6_addrconf addrconf_dad_work [ 716.308485][ T1658] Call Trace: [ 716.311809][ T1658] __schedule+0x893/0x2130 [ 716.318139][ T1658] ? io_schedule_timeout+0x140/0x140 [ 716.323917][ T1658] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.329135][ T1658] ? lockdep_hardirqs_on+0x79/0x100 [ 716.336422][ T1658] schedule+0xcf/0x270 [ 716.340531][ T1658] schedule_preempt_disabled+0xf/0x20 [ 716.346429][ T1658] __mutex_lock+0x3e2/0x10e0 [ 716.351099][ T1658] ? addrconf_dad_work+0xa3/0x1280 [ 716.358133][ T1658] ? mutex_lock_io_nested+0xf60/0xf60 [ 716.364072][ T1658] ? debug_object_deactivate+0x264/0x300 [ 716.369725][ T1658] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 716.377564][ T1658] addrconf_dad_work+0xa3/0x1280 [ 716.382552][ T1658] ? addrconf_dad_completed+0xc60/0xc60 [ 716.389720][ T1658] process_one_work+0x933/0x15a0 [ 716.396563][ T1658] ? lock_release+0x710/0x710 [ 716.401257][ T1658] ? pwq_dec_nr_in_flight+0x320/0x320 [ 716.407861][ T1658] ? rwlock_bug.part.0+0x90/0x90 [ 716.412814][ T1658] ? _raw_spin_lock_irq+0x41/0x50 [ 716.419754][ T1658] worker_thread+0x64c/0x1120 [ 716.426469][ T1658] ? __kthread_parkme+0x13f/0x1e0 [ 716.431517][ T1658] ? process_one_work+0x15a0/0x15a0 [ 716.438608][ T1658] kthread+0x3b1/0x4a0 [ 716.442701][ T1658] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 716.449537][ T1658] ret_from_fork+0x1f/0x30 [ 716.456007][ T1658] INFO: task kworker/1:1:8621 blocked for more than 143 seconds. [ 716.464093][ T1658] Not tainted 5.10.0-rc6-syzkaller #0 [ 716.470013][ T1658] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.480702][ T1658] task:kworker/1:1 state:D stack:27120 pid: 8621 ppid: 2 flags:0x00004000 [ 716.490353][ T1658] Workqueue: ipv6_addrconf addrconf_dad_work [ 716.498265][ T1658] Call Trace: [ 716.501580][ T1658] __schedule+0x893/0x2130 [ 716.506570][ T1658] ? io_schedule_timeout+0x140/0x140 [ 716.511877][ T1658] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.521672][ T1658] ? lockdep_hardirqs_on+0x79/0x100 [ 716.527918][ T1658] schedule+0xcf/0x270 [ 716.532011][ T1658] schedule_preempt_disabled+0xf/0x20 [ 716.540360][ T1658] __mutex_lock+0x3e2/0x10e0 [ 716.545934][ T1658] ? addrconf_dad_work+0xa3/0x1280 [ 716.551062][ T1658] ? mutex_lock_io_nested+0xf60/0xf60 [ 716.559205][ T1658] ? debug_object_deactivate+0x264/0x300 [ 716.565707][ T1658] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 716.571726][ T1658] addrconf_dad_work+0xa3/0x1280 [ 716.579438][ T1658] ? do_raw_spin_lock+0x120/0x2b0 [ 716.585641][ T1658] ? addrconf_dad_completed+0xc60/0xc60 [ 716.591218][ T1658] process_one_work+0x933/0x15a0 [ 716.598992][ T1658] ? lock_release+0x710/0x710 [ 716.604591][ T1658] ? pwq_dec_nr_in_flight+0x320/0x320 [ 716.610015][ T1658] ? rwlock_bug.part.0+0x90/0x90 [ 716.617810][ T1658] ? _raw_spin_lock_irq+0x41/0x50 [ 716.622876][ T1658] worker_thread+0x64c/0x1120 [ 716.629717][ T1658] ? __kthread_parkme+0x13f/0x1e0 [ 716.637568][ T1658] ? process_one_work+0x15a0/0x15a0 [ 716.642796][ T1658] kthread+0x3b1/0x4a0 [ 716.649397][ T1658] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 716.657665][ T1658] ret_from_fork+0x1f/0x30 [ 716.662144][ T1658] [ 716.662144][ T1658] Showing all locks held in the system: [ 716.671277][ T1658] 1 lock held by khungtaskd/1658: [ 716.677235][ T1658] #0: ffffffff8b337a20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 716.688063][ T1658] 1 lock held by in:imklog/8185: [ 716.693574][ T1658] 3 locks held by kworker/0:1/8485: [ 716.698988][ T1658] #0: ffff888020c52d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 716.711172][ T1658] #1: ffffc900017efda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 716.724228][ T1658] #2: ffffffff8c92ce08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1280 [ 716.735208][ T1658] 3 locks held by kworker/1:1/8621: [ 716.740416][ T1658] #0: ffff888020c52d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 716.752752][ T1658] #1: ffffc90001a8fda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 716.766041][ T1658] #2: ffffffff8c92ce08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1280 [ 716.777677][ T1658] 1 lock held by syz-executor259/8704: [ 716.783953][ T1658] [ 716.786320][ T1658] ============================================= [ 716.786320][ T1658] [ 716.796621][ T1658] NMI backtrace for cpu 0 [ 716.800970][ T1658] CPU: 0 PID: 1658 Comm: khungtaskd Not tainted 5.10.0-rc6-syzkaller #0 [ 716.809286][ T1658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.819339][ T1658] Call Trace: [ 716.822638][ T1658] dump_stack+0x107/0x163 [ 716.826975][ T1658] nmi_cpu_backtrace.cold+0x44/0xd7 [ 716.832183][ T1658] ? lapic_can_unplug_cpu+0x80/0x80 [ 716.837385][ T1658] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 716.843372][ T1658] watchdog+0xd43/0xfa0 [ 716.847536][ T1658] ? reset_hung_task_detector+0x30/0x30 [ 716.853086][ T1658] kthread+0x3b1/0x4a0 [ 716.857176][ T1658] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 716.863073][ T1658] ret_from_fork+0x1f/0x30 [ 716.867788][ T1658] Sending NMI from CPU 0 to CPUs 1: [ 716.874498][ C1] NMI backtrace for cpu 1 [ 716.874506][ C1] CPU: 1 PID: 8704 Comm: syz-executor259 Not tainted 5.10.0-rc6-syzkaller #0 [ 716.874514][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.874519][ C1] RIP: 0010:trace_hardirqs_off+0x51/0x1b0 [ 716.874532][ C1] Code: e8 94 46 fa ff 65 c7 05 c9 39 8d 7e 01 00 00 00 65 8b 1d c2 2f 8c 7e 81 e3 00 00 f0 00 31 ff 89 de e8 c3 3e fa ff 85 db 74 09 <5b> 5d 41 5c e9 66 46 fa ff e8 61 46 fa ff 48 8b 6c 24 18 0f 1f 44 [ 716.874538][ C1] RSP: 0018:ffffc90000d90c88 EFLAGS: 00000046 [ 716.874550][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8175c00d [ 716.874556][ C1] RDX: ffff88802d459a40 RSI: ffffffff8175c02e RDI: 0000000000000005 [ 716.874562][ C1] RBP: ffffffff88eb19de R08: 0000000000000000 R09: ffffffff8cecff4f [ 716.874569][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000246 [ 716.874575][ C1] R13: 1ffff920001b21aa R14: ffffffff8643e360 R15: 0000000000000000 [ 716.874582][ C1] FS: 00000000023c5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 716.874588][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.874594][ C1] CR2: 00007f6956f45000 CR3: 0000000014a83000 CR4: 00000000001506e0 [ 716.874600][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.874607][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.874610][ C1] Call Trace: [ 716.874614][ C1] [ 716.874619][ C1] _raw_spin_lock_irqsave+0x4e/0x50 [ 716.874623][ C1] dsp_cmx_send+0x1f/0x1580 [ 716.874628][ C1] ? dsp_cmx_receive+0xee0/0xee0 [ 716.874632][ C1] call_timer_fn+0x1a5/0x6b0 [ 716.874637][ C1] ? add_timer_on+0x4a0/0x4a0 [ 716.874642][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 716.874646][ C1] ? dsp_cmx_receive+0xee0/0xee0 [ 716.874651][ C1] __run_timers.part.0+0x67c/0xa50 [ 716.874655][ C1] ? call_timer_fn+0x6b0/0x6b0 [ 716.874660][ C1] ? lapic_next_event+0x4d/0x80 [ 716.874664][ C1] run_timer_softirq+0xb3/0x1d0 [ 716.874669][ C1] __do_softirq+0x2a0/0x9f6 [ 716.874673][ C1] asm_call_irq_on_stack+0xf/0x20 [ 716.874677][ C1] [ 716.874681][ C1] do_softirq_own_stack+0xaa/0xd0 [ 716.874686][ C1] irq_exit_rcu+0x132/0x200 [ 716.874691][ C1] sysvec_apic_timer_interrupt+0x4d/0x100 [ 716.874696][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 716.874702][ C1] RIP: 0010:rcu_lockdep_current_cpu_online+0x83/0x120 [ 716.874714][ C1] Code: 3c 02 00 0f 85 92 00 00 00 48 03 1c ed c0 26 e4 8a 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 80 3c 02 00 <75> 79 48 8d 7b 20 48 8b 6b 18 48 b8 00 00 00 00 00 fc ff df 48 89 [ 716.874720][ C1] RSP: 0018:ffffc90001c0eba0 EFLAGS: 00000246 [ 716.874729][ C1] RAX: dffffc0000000000 RBX: ffff8880b9f35780 RCX: ffffffff81562791 [ 716.874735][ C1] RDX: 1ffff110173e6af3 RSI: 0000000000000002 RDI: ffff8880b9f35798 [ 716.874742][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8cecff4f [ 716.874748][ C1] R10: fffffbfff19d9fe9 R11: 0000000000000000 R12: 0000000000000001 [ 716.874754][ C1] R13: 0000000000000001 R14: 1ffff92000381d96 R15: ffff888014452000 [ 716.874759][ C1] ? lock_release+0xa1/0x710 [ 716.874763][ C1] rcu_read_lock_sched_held+0x25/0x70 [ 716.874767][ C1] lock_release+0x5b7/0x710 [ 716.874772][ C1] ? tcf_idr_check_alloc+0x29e/0x3b0 [ 716.874777][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 716.874781][ C1] ? tcf_idr_check_alloc+0x78/0x3b0 [ 716.874786][ C1] ? asm_sysvec_reschedule_ipi+0x12/0x20 [ 716.874791][ C1] ? mutex_lock_io_nested+0xf60/0xf60 [ 716.874796][ C1] __mutex_unlock_slowpath+0x81/0x610 [ 716.874801][ C1] ? __radix_tree_lookup+0xef/0x290 [ 716.874806][ C1] ? __sanitizer_cov_trace_pc+0x55/0x60 [ 716.874810][ C1] ? wait_for_completion+0x260/0x260 [ 716.874815][ C1] tcf_idr_check_alloc+0x29e/0x3b0 [ 716.874820][ C1] tcf_police_init+0x347/0x13a0 [ 716.874824][ C1] ? tcf_police_cleanup+0x60/0x60 [ 716.874829][ C1] ? find_held_lock+0x2d/0x110 [ 716.874834][ C1] ? tc_lookup_action_n+0xcd/0xf0 [ 716.874838][ C1] ? __kernel_text_address+0x9/0x30 [ 716.874843][ C1] tcf_action_init_1+0x1a3/0x990 [ 716.874848][ C1] ? tcf_action_dump_old+0x80/0x80 [ 716.874853][ C1] ? stack_trace_consume_entry+0x160/0x160 [ 716.874857][ C1] ? kasan_save_stack+0x32/0x40 [ 716.874862][ C1] ? kasan_save_stack+0x32/0x40 [ 716.874867][ C1] ? kasan_save_stack+0x1b/0x40 [ 716.874872][ C1] ? __kasan_kmalloc.constprop.0+0xc2/0xd0 [ 716.874876][ C1] ? fw_change+0x91b/0x13e0 [ 716.874881][ C1] ? tc_new_tfilter+0x1394/0x2120 [ 716.874885][ C1] ? netlink_rcv_skb+0x153/0x420 [ 716.874890][ C1] ? netlink_unicast+0x533/0x7d0 [ 716.874895][ C1] ? netlink_sendmsg+0x856/0xd90 [ 716.874899][ C1] ? sock_sendmsg+0xcf/0x120 [ 716.874904][ C1] ? ____sys_sendmsg+0x331/0x810 [ 716.874908][ C1] ? ___sys_sendmsg+0xf3/0x170 [ 716.874913][ C1] tcf_exts_validate+0x138/0x420 [ 716.874918][ C1] ? tcf_exts_destroy+0xc0/0xc0 [ 716.874922][ C1] fw_set_parms+0x13d/0xaa0 [ 716.874926][ C1] ? fw_delete+0x8c0/0x8c0 [ 716.874931][ C1] ? kasan_unpoison_shadow+0x33/0x40 [ 716.874936][ C1] fw_change+0xa30/0x13e0 [ 716.874940][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 716.874945][ C1] ? fw_set_parms+0xaa0/0xaa0 [ 716.874950][ C1] tc_new_tfilter+0x1394/0x2120 [ 716.874954][ C1] ? fw_set_parms+0xaa0/0xaa0 [ 716.874959][ C1] ? tc_del_tfilter+0x15b0/0x15b0 [ 716.874964][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 716.874968][ C1] ? tc_del_tfilter+0x15b0/0x15b0 [ 716.874973][ C1] rtnetlink_rcv_msg+0x80e/0xad0 [ 716.874978][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 716.874983][ C1] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 716.874987][ C1] netlink_rcv_skb+0x153/0x420 [ 716.874992][ C1] ? rtnetlink_put_metrics+0x510/0x510 [ 716.874997][ C1] ? netlink_ack+0xaa0/0xaa0 [ 716.875001][ C1] ? netlink_deliver_tap+0x227/0xb70 [ 716.875006][ C1] netlink_unicast+0x533/0x7d0 [ 716.875011][ C1] ? netlink_attachskb+0x810/0x810 [ 716.875015][ C1] ? __phys_addr_symbol+0x2c/0x70 [ 716.875020][ C1] ? __check_object_size+0x171/0x3f0 [ 716.875025][ C1] netlink_sendmsg+0x856/0xd90 [ 716.875030][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 716.875035][ C1] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 716.875040][ C1] ? netlink_unicast+0x7d0/0x7d0 [ 716.875044][ C1] sock_sendmsg+0xcf/0x120 [ 716.875049][ C1] ____sys_sendmsg+0x331/0x810 [ 716.875054][ C1] ? kernel_sendmsg+0x50/0x50 [ 716.875058][ C1] ? do_recvmmsg+0x6c0/0x6c0 [ 716.875063][ C1] ? __lock_acquire+0x16b7/0x5500 [ 716.875068][ C1] ___sys_sendmsg+0xf3/0x170 [ 716.875073][ C1] ? sendmsg_copy_msghdr+0x160/0x160 [ 716.875078][ C1] ? find_held_lock+0x2d/0x110 [ 716.875083][ C1] ? __might_fault+0xd3/0x180 [ 716.875088][ C1] ? lock_downgrade+0x6d0/0x6d0 [ 716.875092][ C1] __sys_sendmmsg+0x195/0x470 [ 716.875097][ C1] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 716.875102][ C1] ? find_held_lock+0x2d/0x110 [ 716.875107][ C1] ? alloc_file_pseudo+0x1/0x250 [ 716.875112][ C1] ? __fd_install+0x1e6/0x600 [ 716.875116][ C1] ? __sys_socket+0x16d/0x200 [ 716.875121][ C1] __x64_sys_sendmmsg+0x99/0x100 [ 716.875127][ C1] ? syscall_enter_from_user_mode+0x1d/0x50 [ 716.875131][ C1] do_syscall_64+0x2d/0x70 [ 716.875137][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 716.875141][ C1] RIP: 0033:0x445929 [ 716.875155][ C1] Code: e8 6c 05 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 716.875161][ C1] RSP: 002b:00007ffec1102c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 716.875173][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000445929 [ 716.875180][ C1] RDX: 010efe10675dec16 RSI: 0000000020000200 RDI: 0000000000000004 [ 716.875186][ C1] RBP: 00007ffec1102c80 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 716.875193][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffec1102c90 [ 716.875200][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 716.875208][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.357 msecs [ 716.893004][ T1658] Kernel panic - not syncing: hung_task: blocked tasks [ 717.664406][ T1658] CPU: 0 PID: 1658 Comm: khungtaskd Not tainted 5.10.0-rc6-syzkaller #0 [ 717.672720][ T1658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.682778][ T1658] Call Trace: [ 717.686083][ T1658] dump_stack+0x107/0x163 [ 717.690421][ T1658] panic+0x306/0x73d [ 717.694316][ T1658] ? __warn_printk+0xf3/0xf3 [ 717.698914][ T1658] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.704200][ T1658] ? preempt_schedule_thunk+0x16/0x18 [ 717.709582][ T1658] ? watchdog.cold+0x5/0x158 [ 717.714170][ T1658] ? watchdog+0xa80/0xfa0 [ 717.718514][ T1658] watchdog.cold+0x16/0x158 [ 717.723023][ T1658] ? reset_hung_task_detector+0x30/0x30 [ 717.728574][ T1658] kthread+0x3b1/0x4a0 [ 717.732645][ T1658] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 717.738544][ T1658] ret_from_fork+0x1f/0x30 [ 717.743650][ T1658] Kernel Offset: disabled [ 717.747977][ T1658] Rebooting in 86400 seconds..